MULTIPLEXING RULES FOR CONFIGURED GRANT TRANSMISSIONS IN NEW RADIO SYSTEMS OPERATING ON UNLICENSED SPECTRUM

Information

  • Patent Application
  • 20210007129
  • Publication Number
    20210007129
  • Date Filed
    September 17, 2020
    3 years ago
  • Date Published
    January 07, 2021
    3 years ago
Abstract
Various embodiments herein provide multiplexing rules for configured grant transmissions in New Radio (NR) systems operating on unlicensed spectrum. Other embodiments may be described and claimed.
Description
FIELD

Embodiments relate generally to the technical field of wireless communications.


BACKGROUND

Each year, the number of mobile devices connected to wireless networks significantly increases. In order to keep up with the demand in mobile data traffic, necessary changes have to be made to system requirements to be able to meet these demands. Three critical areas that need to be enhanced in order to deliver this increase in traffic are larger bandwidth, lower latency, and higher data rates.


One of the major limiting factors in wireless innovation is the availability in spectrum. To mitigate this, the unlicensed spectrum has been an area of interest to expand the availability of LTE. In this context, one of the major enhancement for LTE in 3GPP Release 13 has been to enable its operation in the unlicensed spectrum via Licensed-Assisted Access (LAA), which expands the system bandwidth by utilizing the flexible carrier aggregation (CA) framework introduced by the LTE-Advanced system.


With the advent of New Radio (NR), an enhancement is to allow NR systems to operate on unlicensed spectrum.





BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments will be readily understood by the following detailed description in conjunction with the accompanying drawings. To facilitate this description, like reference numerals designate like structural elements. Embodiments are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings.



FIG. 1 illustrates configured grant (CG)-uplink control information (UCI) mapping in accordance with various embodiments.



FIG. 2 illustrates an example of mini-slot physical uplink shared channel (PUSCH) type B spanning slot boundary, in accordance with various embodiments.



FIG. 3 illustrates physical uplink control channel (PUCCH) overlapping multiple CG PUSCH transmissions, in accordance with various embodiments.



FIG. 4 illustrates a process of a user equipment (UE) in accordance with various embodiments.



FIG. 5 illustrates a process of a next generation Node B (gNB) in accordance with various embodiments.



FIG. 6 illustrates an example architecture of a system of a network, in accordance with various embodiments.



FIG. 7 illustrates an example of infrastructure equipment in accordance with various embodiments.



FIG. 8 depicts example components of a computer platform or device in accordance with various embodiments.



FIG. 9 depicts example components of baseband circuitry and radio frequency end modules in accordance with various embodiments.



FIG. 10 is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium (for example, a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein.





DETAILED DESCRIPTION

The following detailed description refers to the accompanying drawings. The same reference numbers may be used in different drawings to identify the same or similar elements. In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular structures, architectures, interfaces, techniques, etc. in order to provide a thorough understanding of the various aspects of various embodiments. However, it will be apparent to those skilled in the art having the benefit of the present disclosure that the various aspects of the various embodiments may be practiced in other examples that depart from these specific details. In certain instances, descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the various embodiments with unnecessary detail. For the purposes of the present document, the phrase “A or B” means (A), (B), or (A and B).


Each year, the number of mobile devices connected to wireless networks significantly increases. In order to keep up with the demand in mobile data traffic, necessary changes have to be made to system requirements to be able to meet these demands. Three critical areas that need to be enhanced in order to deliver this increase in traffic are larger bandwidth, lower latency, and higher data rates.


One of the major limiting factors in wireless innovation is the availability in spectrum. To mitigate this, the unlicensed spectrum has been an area of interest to expand the availability of LTE. In this context, one of the major enhancement for LTE in 3GPP Release 13 has been to enable its operation in the unlicensed spectrum via Licensed-Assisted Access (LAA), which expands the system bandwidth by utilizing the flexible carrier aggregation (CA) framework introduced by the LTE-Advanced system.


Now that the main building blocks for the framework of New Radio (NR) have been established, a natural enhancement is to allow this to also operate on unlicensed spectrum. The work to introduce shared/unlicensed spectrum in 5G NR has already been kicked off, and a new work item (WI) on “NR-Based Access to Unlicensed Spectrum” was approved in TSG RAN Meeting #82. One objective of this new WI:

    • Physical layer aspects including [RAN1]:
      • Frame structure including single and multiple DL to UL and UL to DL switching points within a shared COT with associated identified LBT requirements (3GPP Technical Report (TR) 38.889, Section 7.2.1.3.1).
      • UL data channel including extension of PUSCH to support PRB-based frequency block-interlaced transmission; support of multiple PUSCH(s) starting positions in one or multiple slot(s) depending on the LBT outcome with the understanding that the ending position is indicated by the UL grant; design not requiring the UE to change a granted TBS for a PUSCH transmission depending on the LBT outcome. The necessary PUSCH enhancements based on CP-OFDM. Applicability of sub-PRB frequency block-interlaced transmission for 60 kHz to be decided by RAN1.
    • Physical layer procedure(s) including [RAN1, RAN2]:
      • For LBE, channel access mechanism in line with agreements from the NR-U study item (TR 38.889, Section 7.2.1.3.1). Specification work to be performed by RAN1.
      • HARQ operation: NR HARQ feedback mechanisms are the baseline for NR-U operation with extensions in line with agreements during the study phase (NR-U TR section 7.2.1.3.3), including immediate transmission of HARQ A/N for the corresponding data in the same shared COT as well as transmission of HARQ A/N in a subsequent COT. Potentially support mechanisms to provide multiple and/or supplemental time and/or frequency domain transmission opportunities. (RAN1)
      • Scheduling multiple TTIs for PUSCH in-line with agreements from the study phase (TR 38.889, Section 7.2.1.3.3). (RAN1)
      • Configured Grant operation: NR Type-1 and Type-2 configured grant mechanisms are the baseline for NR-U operation with modifications in line with agreements during the study phase (NR-U TR section 7.2.1.3.4). (RAN1)
      • Data multiplexing aspects (for both UL and DL) considering LBT and channel access priorities. (RAN1/RAN2)


While this WI is ongoing, it is important to identify aspects of the design that can be enhanced for NR when operating in unlicensed spectrum. One of the challenges in this case is that this system must maintain fair coexistence with other incumbent technologies, and in order to do so depending on the particular band in which it might operate some restriction might be taken into account when designing this system. For instance, if operating in the 5 GHz band, a listen before talk (LBT) procedure needs to be performed in some parts of the world to acquire the medium before a transmission can occur.


One of the important features of NR-U is to enable the Rel. 15 configured grant (CG) operation on the unlicensed spectrum. While in Rel. 15 it has been already agreed that CG-PUSCH is always dropped when it overlaps with grant-based PUSCH, a CG PUSCH may also overlap with PUCCH. In this context, this disclosure provides multiple multiplexing or dropping rules when CG-PUSCH overlaps with legacy-UCI occasions.


To enable configured grant transmissions in NR operating on unlicensed spectrum, it is important to define multiplexing or dropping rules, when CG-PUSCH overlaps with grant-based UL control information (e.g. HARQ-ACK, SR, CSI). In this matter, this disclosure provides multiple options and rules, and their related details.


When operating on unlicensed spectrum that requires contention based protocols to access the channel, a scheduled UL transmission is greatly degraded due to the “quadruple” contention for UEs to access the UL. In fact, before the UE can perform an UL transmission, the system is subject to the following steps: 1) UE sends scheduling request (SR), 2) LBT performed at the gNB before sending UL grant (especially in the case of self-carrier scheduling), 3) UE scheduling (internal contention amongst UEs associated with the same gNB) and 4) LBT performed only by the scheduled UE. Furthermore, the four slots necessary for processing delay between UL grant and PUSCH transmission represent an additional performance constraint.


In order to overcome these issues, as done in LTE, a grant-free transmission was agreed to be enabled in NR operating on unlicensed spectrum by using the Rel. 15 configured grant design as a baseline. In order to provide to the UE with more flexibility and freedom, the CG UE in NR-U independently attempts to transmit over predefined resources, and independently chooses the HARQ ID process to use from a given pool. Since this information, together with the UE-ID and others are unknown at the gNB, the CG UE must transmit these information within a specific UCI, named here CG-UCI, within each PUSCH.


While in Rel. 15, it has been already agreed that CG-PUSCH is always dropped when it overlaps with grant-based PUSCH, a CG PUSCH may also overlap with a PUCCH. In this context, some multiplexing or dropping rules need to be defined. Various embodiments herein provide multiplexing and dropping rules.


Multiplexing & Dropping Rules
Option 1: Always Multiplex

In one embodiment, when a PUCCH overlaps with CG-PUSCH within a PUCCH group and if the timeline requirement as defined in Section 9.2.5 in TS38.213 is satisfied, the existing UCI may be multiplexed together with the CG-UCI on the CG-PUSCH. In one embodiment, the CG-UCI is always mapped starting after the DMRS symbol(s) as shown in FIG. 1. Notice that FIG. 1 provides an example of PUSCH transmission using PUSCH type A, but the embodiments above and within this specific section also apply to PUSCH type B, and CG-PUSCH through mini-slot. Also note that the existing UCI may include HARQ-ACK in response to PDSCH transmission and/or CSI report.


In one embodiment, the CG-UCI is transmitted in each PUSCH transmission within a period, and mapped starting from the DMRS symbol(s) within each slot or mini-slot. In one embodiment, if mini-slots CG-PUSCH are allowed, then for the mini-slots within a CG burst for which the mini-slot time allocation spans across slot boundaries, the CG-UCI is never transmitted. In one embodiment, the CG-UCI contains among other fields indication of the SLIV (e.g. S and L parameter) for each individual mini-slot within which the CG-UCI is transmitted, and/or indication of the repetition number. For the case where the LBT gap is located at the starting symbol S for the first CG-PUSCH, and the LBT gap is of length Y OFDM symbols, then the actual starting symbol of the PUSCH indicated in the CG-UCI is OS #S+Y, which will contain the DMRS (which is transmitted in the first OFDM symbol after the LBT gap), and the length of the actual PUSCH transmission is L-Y. In one embodiment, the CG-UCI indicates the starting symbol S as being the same as that in the configured SLIV for the PUSCH, regardless of whether the actual PUSCH starts at symbol S+Y. In another embodiment, the CG-UCI indicates the starting symbol as S+Y, so that the gNB knows that there is an LBT gap at the beginning of the CG-PUSCH. In another embodiment, the UE is configured with a SLIV indicated starting symbol S such that the LBT gap is configured to occur in the Y symbols prior to S. For example, if S=0 and Y=1, then the LBT gap is in OS #13 of the prior slot, or if S=7 and Y=2, then the LBT gap is in OS #5 and OS #6. In this case, the UCI indicated start symbol is always the same as that configured in the SLIV, and the length of the PUSCH is always L.


It may occur that the UE is configured with mini-slot PUSCH indicated in the SLIV, such that the PUSCH start symbol S and length L will allocate the PUSCH to span across the slot boundary, e.g. S+L>14. This occurrence is illustrated in FIG. 2 below. The potential occurrence of this case has a direct impact on the CG-UCI mapping. In one embodiment, if the mini-slot PUSCH is allocated to span across the slot boundary, only the portion of the mini-slot that fits within the first slot is transmitted, and the portion of the mini-slot in the second slot is punctured. The DMRS is mapped to the first symbol in the slot, and the CG-UCI is mapped beginning in the next symbol. If the start symbol is too late in the slot, such that the DMRS and CG-UCI cannot be mapped to the symbols allocated at the end of the first slot, then the PUSCH is dropped. In another embodiment, the PUSCH is broken up into two repetitions, such that the first repetition is mapped to the end of the first slot, the second repetition is mapped to the beginning of the second slot, and the combined length of the two repetitions equals L. Each repetition will contain front loaded DMRS, and the CG-UCI will be mapped to each repetition following the DMRS, such that the start symbol and length indicated match that for each repetition. For example, considering the mini-slot PUSCH in red in the figure below, let (S1,L1) and (S2, L2) be the start symbols and lengths of the two respective repetitions, then (S1=11, L1=3) and (S1=0, L1=4), and the CG-UCI and other UCI are multiplexed beginning from symbols 12 and 1, respectively. In another embodiment, the UCI is mapped to both repetitions, and both UCI indicate S as the start symbol of the first repetition and length L as the length of the combined repetitions. For example in the figure below, (S=11, L=7). In another embodiment, the CG-UCI is only mapped to the first repetition in the manner described in the previous embodiment, and (S1=11, L1=7). In another embodiment, the CG-UCI is only mapped to the repetition with greater length, but the CG-UCI indicates (S1=11, L1=7), so it is understood that this is the second repetition. In another embodiment, the CG-UCI is only mapped to the first repetition, and any scheduled UCI to be multiplexed on the PUSCH is mapped to the second repetition, or vice-versa. In another embodiment, only CG-UCI is allowed when the PUSCH spans across the slot boundary, e.g. not multiplexing with other UCI such as HARQ.


In one embodiment, for a PUSCH crossing slot boundary, the PUSCH is broken into two repetitions. The first repetition is mapped to the end of the first slot, the second repetition is mapped to the beginning of the second slot. As to LBT operation, LBT is only performed for the first repetition. If LBT fails, UE cannot transmit either repetition. Alternatively, LBT is allowed for the second repetition too. If LBT fails for the first repetition, UE can try an additional LBT for the second repetition.


In one embodiment, the mapping order for all other existing UCIs may be done as follows: CG-UCI is followed by HARQ-ACK, CSI part 1 and CSI part 2 if any, and then finally data. In another embodiment, the mapping order can be defined as follows: HARQ-ACK is followed by CG-UCI, CSI part 1 and CSI part 2 if any, and then data. In one embodiment, in order to avoid blind detection or extra computing at the gNB, the CG-UCI may contain one or two bits indicating whether HARQ-ACK and/or CSI are multiplexed: if one bit is used, this might indicate whether multiplexing is performed or not; if two bits are provided, these will indicate whether multiplexing is not performed (e.g., ‘00’), but also specifically whether HARQ-ACK feedback (e.g., ‘01’) or CSI (e.g., ‘10’) or both (e.g., ‘11’) are also multiplexed.


In another embodiment, CG-UCI and HARQ-ACK feedback are encoded together, regardless of the HARQ-ACK feedback payload. The actual number of HARQ-ACK bits could be jointly coded with CG-UCI. Alternatively, if the number of HARQ-ACK bits is less than or equal to K bits, e.g. K=2, K bits are added to CG-UCI, and joint coding is performed. Further in one option, the number of reserved K bits for HARQ-ACK feedback is always appended before or after CG-UCI regardless of actual number of HARQ-ACK feedback bits. In case when the actual number of HARQ-ACK feedback bits is less than K bits, e.g., K=2, NACK is applied on the reserved HARQ-ACK feedback bits. For example, if K=2, and if actual transmitted HARQ-ACK feedback is 1 bit with ACK, then the HARQ-ACK feedback on CG-UCI would be composed by a ACK, followed by a NACK.


If the number of HARQ-ACK bits is higher than K, the actual number of HARQ-ACK bits could be jointly coded with CG-UCI. For the decoding of CG-UCI, the gNB can assume different number of bits for GC-UCI based on the knowledge of whether HARQ-ACK is transmitted and how many HARQ-ACK bits is transmitted.


In one embodiment, CG-UCI and HARQ-ACK feedback may be encoded together or separately based on the HARQ-ACK feedback. For instance:

    • If HARQ-ACK<=2 bits, CG-UCI and HARQ-ACK are encoded separately, and some reserved resources are devoted after the allocation of CG-UCI for the transmission of HARQ-ACK bit.
    • If HARQ-ACK>2 bits, CG-UCI and HARQ-ACK are jointly encoded


In one embodiment, when the CG-UCI is encoded together with HARQ-ACK, two sets of beta offset values are defined: i) a beta_offset set is used when CG-UCI is transmitted alone; ii) another beta_offset set is defined when there is HARQ-ACK feedback to transmit. In one embodiment, the beta_offset can be the same as that defined in the Rel. 15 for HARQ-ACK, and the two sets will be created by reinterpreting these values. In particular, the beta-offset for HARQ-ACK are reused for both cases with the distinction that the payload of CG-UCI+ACK/NACK would be reinterpreted as ACK/NACK only transmission.


Option 2: Only Dropping

In one embodiment, if CG-PUSCH overlaps with PUCCH within a PUCCH group and if the timeline requirement as defined in Section 9.2.5 in TS 38.213 is satisfied, either CG-UCI or the legacy UCIs carried within the PUCCH may be dropped according to a predefined order or priority rule, which indicates their specific priority compared to the others UCIs. In one embodiment, either CG-UCI or the legacy UCIs carried within the PUCCH may be dropped based on the type of PUSCH transmission and/or PUSCH duration: for instance for mini-slot PUSCH transmission with length smaller or equal to X [ms/or symbols], then either the CG-UCI or the legacy UCIs are dropped.


In one embodiment, the priority may be defined as follows, where the UCI are listed by providing first the one that has higher priority:


a. HARQ-ACK->SR->CG-UCI->CSI Part 1->CSI Part 2


If HARQ-ACK and/or SR are carried within the PUCCH, then CG PUSCH is dropped. Otherwise, PUCCH is instead dropped.


b. CG-UCI->HARQ-ACK->SR->CSI Part 1->CSI Part 2


High priority is always provided to the CG PUSCH, and when PUCCH overlaps with CG PUSCH, the PUCCH is always dropped.


c. HARQ-ACK->SR->CSI Part 1->CSI Part 2->CG-UCI


High priority is always provided to the PUCCH, and when CG-PUSCH overlaps with PUCCH this is always dropped.


In another embodiment, if CG-PUSCH overlaps with PUCCH within a PUCCH group and if the timeline requirement as defined in Section 9.2.5 in 3GPP TS38.213 is satisfied, UE only transmits one of the CG-PUSCH and PUCCH, and drops another channel. In particular, UE first performs UCI multiplexing on PUCCH in accordance with the procedure as defined in Section 9.2.5 in TS38.213. When the resulting PUCCH resource(s) overlaps with CG-PUSCH, if the timeline requirement as defined in Section 9.2.5 in TS38.213 is satisfied, and if one of UCI types in PUCCH(s) has higher priority than CG-UCI, CG-PUSCH is dropped and PUCCH(s) is transmitted. If any of the UCI types in PUCCH(s) has lower priority than CG-UCI, CG-PUSCH is transmitted and PUCCH(s) is dropped. The priority rule can be defined as mentioned above.


In another option, UE may transmit the CG-PUSCH or PUCCH with earliest starting symbol and drops the other channel. If both channels have the same starting symbol, UE can drop the channel with shorter or longer duration.


Option 3: Drop or Multiplex Based on Available Resources

In one embodiment, the existing UCI will be multiplexed together with the CG-UCI within the CG-PUSCH if the resources are sufficient, otherwise either CG-PUSCH or PUCCH is dropped.


In one embodiment, if the CG-PUSCH has sufficient resources to accommodate multiplexing then the mapping order for the UCIs may be done as follows: CG-UCI is mapped first, and followed by HARQ-ACK, CSI part 1 and CSI part 2, and then finally data. In one embodiment, in order to avoid blind detection or extra computing at the gNB, the CG-UCI may contain one or two bits indicating whether HARQ-ACK and/or CSI are multiplexed: if one bit is used, this might indicated whether multiplexing is performed or not; if two bits are provided, these will indicate whether multiplexing is not performed (e.g. ‘00’), but also specifically whether HARQ-ACK feedback (e.g., ‘01’) or CSI (e.g., ‘10’) or both (e.g., ‘11’) are also multiplexed.


In another embodiment, CG-UCI and HARQ-ACK feedback are always encoded together.


In one embodiment, if the PUCCH and CG-PUSCH overlap, and the resources available within the CG-PUSCH are not sufficient to carry CG-UCI with the UCI carried on PUCCH, then either CG-UCI or the legacy UCIs carried within the PUCCH may be dropped according to a predefined list, which indicates their specific priority compared to the others UCIs.


For the case when the PUSCH is configured to span across the slot boundary, such that R symbols are available from the starting symbol of the PUSCH as the slot boundary, then the following multiplexing or dropping rules may be applied. In one embodiment, where the PUSCH mini-slot spans across the slot boundary, such that R symbols are available from the starting symbol of the PUSCH as the slot boundary, then the following dropping rules may be applied. In one embodiment, if R is such that there are not enough resources to transmit the CG-UCI, then only the DMRS is mapped to the starting symbol, and HARQ-ACK and other legacy UCI are rate-matched to the remaining R−1 symbols. In one embodiment, if the R symbols do not contain enough resources for the CG-UCI and is dropped as in the previous embodiment, then the CG PUSCH is moved to the beginning of the next slot and other UCI scheduled for this slot are dropped for the first mini-slot transmission. In another embodiment, if the R symbols are at the end of the slot contain enough resources for the DMRS and CG-UCI, then the HARQ-ACK and other legacy UCI are only multiplexed to the first repetition if enough resources are available, and dropped otherwise. In another embodiment, if the PUSCH is broken up into two mini-slot PUSCHs repetitions, and the CG-UCI is mapped to the first repetition, then the CG-UCI is dropped from the second repetition and only HARQ and other legacy UCI is mapped to the second repetition. In another embodiment, if the CG-UCI is mapped to the first and second repetitions, then the legacy UCI is multiplexed in the repetition with more resources. In another embodiment, if there are enough resources in each repetition, then CG-UCI and legacy UCI are multiplexed on both repetitions.


In one embodiment, the priority may be defined as follows, where the UCI are listed by providing first the one that have higher priority:


1. HARQ-ACK->CG-UCI->CSI Part 1->CSI Part 2


If HARQ-ACK is carried within the PUCCH, then CG PUSCH is dropped. Otherwise, PUCCH is instead dropped.


2. CG-UCI->HARQ-ACK-->CSI Part 1->CSI Part 2


High priority is always provided to the CG PUSCH, and when PUCCH overlaps with CG PUSCH this is always dropped.


3. HARQ-ACK->CSI Part 1->CSI Part 2->CG-UCI


High priority is always provided to the PUCCH, and when CG-PUSCH overlaps with PUCCH this is always dropped.


In another embodiment, if CG-PUSCH overlaps with PUCCH within a PUCCH group, and if the timeline requirement as defined in Section 9.2.5 in 3GPP TS 38.213 is satisfied, based on the resources available the UE may multiplex only some of the uplink information on CG-PUSCH based on one of the following priority lists:

    • HARQ-ACK->CG-UCI->CSI part 1->CSI part 2->data
    • CG-UCI->HARQ-ACK->CSI part 1->CSI part 2->data
    • HARQ-ACK->CSI part 1->CSI part 2->CG-UCI->data


In this case, the UE must perform encoding so that to guarantee that all REs are used.


In one embodiment, if data is dropped CG-UCI is also dropped.


Option 4: Dropping and Multiplexing can be Configured

In one embodiment, the gNB may configure through higher layer signaling or indicated within the DCI whether option 1 or option 2 is used.


Option 5: CSI Part 2 Dropping

In one embodiment, when a PUCCH overlaps with CG-PUSCH within a PUCCH group and if the timeline requirement as defined in Section 9.2.5 in TS 38.213 is satisfied, the existing UCI may be multiplexed together with the CG-UCI on the CG-PUSCH. In one embodiment, the CG-UCI is always mapped starting after the DMRS symbol(s). The HARQ-ACK and CSI part 1 will be mapped in the resources following CG-UCI. In one embodiment, if all 4 UCIs (CG-UCI, HARQ-ACK, CSI part 1, and CSI part 2) need to be multiplexed together in a CG-PUSCH, one of UCIs is dropped according to the given priorities in order to allow up to 3 UCIs multiplexed together. In one embodiment, if all 4 UCIs (CG-UCI, HARQ-ACK, CSI part 1, and CSI part 2) need to be multiplexed together in a CG-PUSCH, the CSI part 2 is always dropped in order to allow up to 3 UCIs multiplexed together. In one embodiment, the dropping rules defined for CSI part 2, can be applied to CSI part 1 in case due to limited resources this UCI may be dropped.


More specifically, the following text in Section 5.2.3 in TS38.214 may be added for the dropping rule of CSI part 1.














 When the UE is scheduled to transmit a transport block on PUSCH


multiplexed with a CG-UCI and CSI report(s), Part 1 CSI is omitted only when










(


O

CSI
-
1


+

L

CSI
-
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·

β
offset
PUSCH

·




l
=
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symb
,
all

PUSCH

-
1






M
sc
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l
)


/




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UL
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-
1





K
r






is





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α
,




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all

PUSCH

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1





M
sc
UCI



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l
)






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Q

CG
-
UCI



-

Q
ACK



,

where





parameters

,
,





L

CSI
-
1











βoffsetPUSCH, Nsymb,allPUSCH, MscUCI(l), CUL-SCH, Kr, QCSI-1, QACK and α are defined in


section 6.3.2.4 of [5, TS 38.212].


 Part 1 CSI is omitted level by level, beginning with the lowest priority level until the


lowest priority level is reached which causes the











(


O

CSI
-
1


+

L

CSI
-
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equal





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-
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-


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ACK


.














In one embodiment, if HARQ-ACK UCI is not transmitted, but CSI part 1 and 2 are needed, then CG-UCI is always mapped starting after the DMRS symbol(s), followed by CSI part 1 and CSI part 2. If there are some number of reserved K bits for HARQ-ACK feedback, but HARQ-ACK is not transmitted, one bit indication can be signaled within the CG-UCI to indicate that for the current PUSCH transmission those resources are no longer used for HARQ-ACK, but used to transmit CSI.


Option 6: Joint Encoding

In one embodiment, CG-UCI or other legacy UCIs are jointly encoded to make sure that a maximum of 3 UCIs may be multiplexed.


In one option, CG-UCI is jointly encoded with the CSI part1, and mapped soon after the DMRS symbol(s) or the first symbol of PUSCH transmission, and the HARQ-ACK and CSI part 2 are mapped in the subsequent resources. In another option, CG-UCI is mapped soon after the DMRS symbol(s), followed by HARQ-ACK and CSI part 1, which are encoded together, and CSI part 2, which is mapped at the end.


In another option, CG-UCI is jointly encoded with CSI part 1, and is mapped after HARQ-ACK feedback. CSI part 2 is mapped after CG-UCI and CSI part 1.


In one embodiment, if HARQ-ACK UCI is piggy-backed in CG-PUSCH, regardless of the option adopted, in order to eliminate the ambiguity between UE and gNB, e.g., when the UE misses the DCI scheduling the PDSCH transmission, the UE carries HARQ-ACK payload information explicitly in the CG-UCI indication. Then the gNB uses this HARQ-ACK payload information for the decoding of HARQ-ACK UCI, which is multiplexed together with CG-UCI.














 In one option, the downlink assignment index in DCI format 0_1 may be


included in the CG-UCI to explicitly indicate the HARQ-ACK feedback payload


size. This may also depend on whether semi-static or dynamic HARQ-ACK


codebook and/or CBG based HARQ-ACK feedback is employed. One example on


the number of bits in CG-UCI is described as follows:-  1st downlink assignment


index - 1 or 2 bits:


 - 1 bit for semi-static HARQ-ACK codebook;


 - 2 bits for dynamic HARQ-ACK codebook.


 - 2nd downlink assignment index - 0 or 2 bits:


 - 2 bits for dynamic HARQ-ACK codebook with two HARQ-ACK sub-


codebooks;


 - 0 bit otherwise.









The value of DAI can be the same as the one described in Section 9.1.2 and 9.1.3 in TS38.213. In fact, the dynamic HARQ-ACK transmission is enhanced in NR-U to account for LBT failure and gNB miss detection potentially due to hidden node problem, therefore the parameter supporting enhanced dynamic HARQ-ACK codebook could be used as HARQ-ACK payload information in CG-UCI. For example, for both groups of PDSCH, the related total DAI and new feedback indicator (NFI) are multiplexed with CG-UCI.


In another option, exact payload size can be included in the CG-UCI. The size of the bit field can be fixed, configured by RRC, or derived from other configuration.


In one embodiment, the indication of HARQ-ACK payload information in CG-UCI is only applied when dynamic codebook is used for HARQ-ACK feedback and/or HARQ-ACK payload information is included in CG-UCI when semi-static codebook is used for HARQ-ACK feedback.


Multiple PUSCH Overlapping with Single or Multiple PUCCHs


In one embodiment, if multiple CG PUSCH overlaps with a PUCCH, the UE multiplexes the UCIs on PUSCH using one of the option described in previous section within the earlier PUSCH transmission which satisfy the HARQ feedback timeline requirements. In one embodiment, if multiple CG PUSCH overlaps with a PUCCH, the UE multiplexes the UCIs on the first PUSCH within the slot in which the PUCCH is scheduled using one of the options described in previous section.


In one embodiment, if the HARQ-ACK timeline requirement is not met when multiplexing the UCIs on the first or earlier PUSCH within the slot over which the UCI should be multiplexed, then:


a. The PUCCH is dropped;


b. The PUSCH transmissions that overlap with the PUCCH are dropped;


c. It is left up to implementation and scheduler to avoid this scenario.


Encoding Rules

In one embodiment, CG-UCI may be encoded as follows:

    • If GC-UCI is encoded first then:







Q

CG
-
UCI



=

min


{






(


O

CG
-
UCI


+

L

CG
-
UCI



)

·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL
-
SCH


-
1




K


?






,



α
·




l
=

l
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)







}









?



indicates text missing or illegible when filed







    • If CG-UCI is encoded after HARQ-ACK feedback then:










Q

CG


-


UCI



=

min


{






(


O

CG


-


UCI


+

L

CG


-


UCI



)

·

β
offset
PUSCH

·





i
=
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL


-


SCH


-
1




·

K
r






,




α
·




l
=

l
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)






-

Q
ACK




}






where OCG-UCI represents the number of bits that compose the CG-UCI, while LCG-UCI is the number of CRC bits. As for of βoffsetPUSCH, this is equivalent to βoffsetPUSCHoffsetHARQ-ACK or βoffsetPUSCHoffsetCSI-part1 or to a new beta offset for CG-UCI.


In one embodiment, if CG-UCI is encoded together with HARQ-ACK. In this case, CG-UCI and HARQ-ACK may be encoded as follows:







Q

CG
-
UCI
+
ACK



=

min


{






(


O

CG
-
UCI


+

O
ACK

+

L

CG
-
UCI
+
ACK



)

·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL
-
SCH


-
1




K
r





,



α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)







}






where OCG-UCI represents the number of bits that compose the CG-UCI, OACK represents the number of bits that compose the the HARQ-ACK, while LCG-UCI+ACK is the number of the CRC bits. As for βoffsetPUSCH, this is equivalent to a new set of beta offsets which are redefined so that to maintain the same reliability. As an alternative, if the HARQ-ACK is less or equal than 2 bits, HARQ-ACK and CG-UCI are separately encoded, while if the HARQ-ACK is larger than 2 bits the HARQ-ACK and CG-UCI are jointly encoded using the formula above.


In one embodiment, if the HARQ-ACK, is multiplexed with the CG-UCI, and encoded separately, the encoding of the HARQ-ACK may be done as follows:

    • If GC-UCI is encoded before HARQ-ACK:







Q
ACK


=

min


{






(


O
ACK

+

L
ACK


)

·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL
-
SCH


-
1




K
r





,




α
·




l
=

l
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)






-

Q

CG
-
UCI





}








    • If GC-UCI is encoded after HARQ-ACK, then the legacy procedure can be reused as is.





In one embodiment, if the CSI part1, is multiplexed with the CG-UCI, the encoding of the CSI part1 may be done as follows:

    • If ACK-ACK and CG-UCI are encoded separately then:







Q

CSI
-
1



=

min


{






(


O

CSI
-
1


+

L

CSI
-
1



)

·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL
-
SCH


-
1




K
r





,




α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)






-

Q

CG
-
UCI



-

Q
ACK




}








    • If ACK-ACK and CG-UCI are jointly encoded then:










Q

CSI
-
1



=

min


{






(


O

CSI
-
1


+

L

CSI
-
1



)

·

β
offset
PUSCH

·




l
=
0



N
symball
PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL
-
SCH


-
1




K
r





,




α
·




l
=
0





N
symball
PUSCH

-
1






M
sc
UCI



(
l
)






-

Q

CG
-
UCI
+
ACK





}






In one embodiment, if the CSI part2 is also multiplexed with the CG-UCI, the encoding of the CSI part2 may be done as follows:

    • If ACK-ACK and CG-UCI are encoded separately then:







Q

CSI
-
2



=

min


{






(


O

CSI
-
2


+

L

CSI
-
2



)

·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL
-
SCH


-
1




K
r





,




α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)






-

Q

CG
-
UCI



-

Q
ACK


-

Q

CSI
-
1





}








    • If ACK-ACK and CG-UCI are jointly encoded then:










Q

CSI
-
2



=

min


{






(


O

CSI
-
2


+

L

CSI
-
2



)

·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL
-
SCH


-
1




K
r





,




α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)






-

Q

CG
-
UCI
+
ACK



-

Q

CSI
-
1





}






In one embodiment, if data is dropped but CG-UCI is still transmitted and encoded together with HARQ-ACK, then CG-UCI and HARQ-ACK may be encoded as follows:







Q


CG


-


UCI

+
ACK



=

min


{






(


O
ACK

+

O

CG


-


UCI


+

L


CG


-


UCI

+
ACK



)

·

β
offset
PUSCH



R
·

Q
m





,



α
·




l
=

l
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)







}






In one embodiment, if data is dropped, but CG-UCI is still transmitted and encoded separately with HARQ-ACK, then CG-UCI may be encoded as follows:

    • If CG-UCI is mapped first then:







Q

CG


-


UCI



=

min


{






(


O

CG


-


UCI


+

L
ACK


)

·

β
offset
PUSCH



R
·

Q
m





,



α
·




l
=

l
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)







}








    • If CG-UCI is mapped after HARQ-ACK, then










Q

CG


-


UCI



=

min


{






(


O

CG


-


UCI


+

L

CG


-


UCI



)

·

β
offset
PUSCH

·





l
=
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL


-


SCH


-
1




·

K
r






,




α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)






-

Q
ACK




}






In one embodiment, if data is dropped but CG-UCI is still transmitted and encoded separately with HARQ-ACK, then HARQ-ACK may be encoded as follows:

    • If HARQ-ACK is mapped first then the legacy formula can be used.
    • If HARQ-ACK is mapped after CG-UCI, then







Q
ACK


=

min


{






(


O
ACK

+

L
ACK


)

·

β
offset
PUSCH

·





l
=
0




N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)








r
=
0



C

UL


-


SCH


-
1




·

K
r






,




α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)






-

Q

CG


-


UCI





}






In one embodiment, if data is dropped but CG-UCI is still transmitted, the encoding for CSI part 1 may be done as follows:

    • If HARQ-ACK and CG-UCI are encoded together, then:


if there is CSI part 2 to be transmitted on the PUSCH,







Q

CSI


-


1



=

min


{






(


O

CSI


-


1


+

L

CSI


-


1



)

·

β
offset
PUSCH



R
·

Q
m





,





l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)



-

Q


CG


-


UCI

+
ACK





}












else












Q

CSI
-
1



=





l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)



-

Q


CG


-


UCI

+
ACK











    • If HARQ-ACK and CG-UCI are encoded separately, then:





if there is CSI part 2 to be transmitted on the PUSCH,







Q

CSI


-


1



=

min


{






(


O

CSI


-


1


+

L

CSI


-


1



)

·

β
offset
PUSCH



R
·

Q
m





,





l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)



-

Q

CG


-


UCI



-

Q
ACK




}












else












Q

CSI


-


1



=





l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)



-

Q

CG


-


UCI



-

Q
ACK








In one embodiment, if data is dropped but CG-UCI is still transmitted, the encoding for CSI part 2 may be done as follows:

    • If HARQ-ACK and CG-UCI are encoded together, then:







Q

CSI


-


2



=





l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)



-

Q


CG


-


UCI

+
ACK



-

Q

CSI


-


1










    • If HARQ-ACK and CG-UCI are encoded separately, then:










Q

CSI


-


2



=





l
=
0



N

symb
,
all

PUSCH

-
1





M
sc
UCI



(
l
)



-

Q

CG


-


UCI



-

Q
ACK


-

Q

CSI


-


1








In one embodiment, if CG-UCI and other UCI types including CSI part 2 are multiplexed in CG-PUSCH, depending on the amount resource allocated for CSI part 2, some part of CSI part 2 may be dropped.


In particular, the calculation of amount of resource for CSI part 2 can be done as follows:


When the UE is scheduled to transmit a transport block on PUSCH multiplexed with a CSI report(s), Part 2 CSI is omitted only when









(


O

CSI


-


2


+

L

CSI


-


2





·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1






M
sc
UCI



(
l
)


/




r
=
0



C

UL


-


SCH


-
1




K
r










is larger than:







·



α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
SC
UCI



(
l
)







-

Q


CG


-


UCI

+
ACK



-

Q

CSI


-


1









    • if HARQ-ACK and CG-UCI are jointly encoded;










·



α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
SC
UCI



(
l
)







-

Q

CG


-


UCI



-

Q
ACK


-

Q

CSI


-


1









    • if HARQ-ACK and CG-UCI are encoded separately;





where parameters OCSI-2, LCSI-2, βoffsetPUSCH, MscUCI(l), CUL-SCH, Kr, Q′CSI-1, QACK and α are defined in section 6.3.2.4 of [5, TS 38.212] or as provided above.


In one embodiment, Part 2 CSI is omitted level by level, beginning with the lowest priority level until the lowest priority level is reached which causes the









(


O

CSI


-


2


+

L

CSI


-


2





·

β
offset
PUSCH

·




l
=
0



N

symb
,
all

PUSCH

-
1






M
sc
UCI



(
l
)


/




r
=
0



C

UL


-


SCH


-
1




K
r












    • to be less than or equal to










·



α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
SC
UCI



(
l
)







-

Q


CG


-


UCI

+
ACK



-

Q

CSI


-


1









    • if HARQ-ACK and CG-UCI are jointly encoded;










·



α
·




l
=
0



N

symb
,
all

PUSCH

-
1





M
SC
UCI



(
l
)







-

Q

CG


-


UCI



-

Q
ACK


-

Q

CSI


-


1









    • if HARQ-ACK and CG-UCI are encoded separately.





Systems and Implementations


FIG. 6 illustrates an example architecture of a system 600 of a network, in accordance with various embodiments. The following description is provided for an example system 600 that operates in conjunction with the LTE system standards and 5G or NR system standards as provided by 3GPP technical specifications. However, the example embodiments are not limited in this regard and the described embodiments may apply to other networks that benefit from the principles described herein, such as future 3GPP systems (e.g., Sixth Generation (6G)) systems, IEEE 802.16 protocols (e.g., WMAN, WiMAX, etc.), or the like.


As shown by FIG. 6, the system 600 includes UE 601a and UE 601b (collectively referred to as “UEs 601” or “UE 601”). In this example, UEs 601 are illustrated as smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more cellular networks), but may also comprise any mobile or non-mobile computing device, such as consumer electronics devices, cellular phones, smartphones, feature phones, tablet computers, wearable computer devices, personal digital assistants (PDAs), pagers, wireless handsets, desktop computers, laptop computers, in-vehicle infotainment (IVI), in-car entertainment (ICE) devices, an Instrument Cluster (IC), head-up display (HUD) devices, onboard diagnostic (OBD) devices, dashtop mobile equipment (DME), mobile data terminals (MDTs), Electronic Engine Management System (EEMS), electronic/engine control units (ECUs), electronic/engine control modules (ECMs), embedded systems, microcontrollers, control modules, engine management systems (EMS), networked or “smart” appliances, MTC devices, M2M, IoT devices, and/or the like.


In some embodiments, any of the UEs 601 may be IoT UEs, which may comprise a network access layer designed for low-power IoT applications utilizing short-lived UE connections. An IoT UE can utilize technologies such as M2M or MTC for exchanging data with an MTC server or device via a PLMN, ProSe or D2D communication, sensor networks, or IoT networks. The M2M or MTC exchange of data may be a machine-initiated exchange of data. An IoT network describes interconnecting IoT UEs, which may include uniquely identifiable embedded computing devices (within the Internet infrastructure), with short-lived connections. The IoT UEs may execute background applications (e.g., keep-alive messages, status updates, etc.) to facilitate the connections of the IoT network.


The UEs 601 may be configured to connect, for example, communicatively couple, with an or RAN 610. In embodiments, the RAN 610 may be an NG RAN or a 5G RAN, an E-UTRAN, or a legacy RAN, such as a UTRAN or GERAN. As used herein, the term “NG RAN” or the like may refer to a RAN 610 that operates in an NR or 5G system 600, and the term “E-UTRAN” or the like may refer to a RAN 610 that operates in an LTE or 4G system 600. The UEs 601 utilize connections (or channels) 603 and 604, respectively, each of which comprises a physical communications interface or layer (discussed in further detail below).


In this example, the connections 603 and 604 are illustrated as an air interface to enable communicative coupling, and can be consistent with cellular communications protocols, such as a GSM protocol, a CDMA network protocol, a PTT protocol, a POC protocol, a UMTS protocol, a 3GPP LTE protocol, a 5G protocol, a NR protocol, and/or any of the other communications protocols discussed herein. In embodiments, the UEs 601 may directly exchange communication data via a ProSe interface 605. The ProSe interface 605 may alternatively be referred to as a SL interface 605 and may comprise one or more logical channels, including but not limited to a PSCCH, a PSSCH, a PSDCH, and a PSBCH.


The UE 601b is shown to be configured to access an AP 606 (also referred to as “WLAN node 606,” “WLAN 606,” “WLAN Termination 606,” “WT 606” or the like) via connection 607. The connection 607 can comprise a local wireless connection, such as a connection consistent with any IEEE 802.11 protocol, wherein the AP 606 would comprise a wireless fidelity (Wi-Fi®) router. In this example, the AP 606 is shown to be connected to the Internet without connecting to the core network of the wireless system (described in further detail below). In various embodiments, the UE 601b, RAN 610, and AP 606 may be configured to utilize LWA operation and/or LWIP operation. The LWA operation may involve the UE 601b in RRC_CONNECTED being configured by a RAN node 611a-b to utilize radio resources of LTE and WLAN. LWIP operation may involve the UE 601b using WLAN radio resources (e.g., connection 607) via IPsec protocol tunneling to authenticate and encrypt packets (e.g., IP packets) sent over the connection 607. IPsec tunneling may include encapsulating the entirety of original IP packets and adding a new packet header, thereby protecting the original header of the IP packets.


The RAN 610 can include one or more AN nodes or RAN nodes 611a and 611b (collectively referred to as “RAN nodes 611” or “RAN node 611”) that enable the connections 603 and 604. As used herein, the terms “access node,” “access point,” or the like may describe equipment that provides the radio baseband functions for data and/or voice connectivity between a network and one or more users. These access nodes can be referred to as BS, gNBs, RAN nodes, eNBs, NodeBs, RSUs, TRxPs or TRPs, and so forth, and can comprise ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell). As used herein, the term “NG RAN node” or the like may refer to a RAN node 611 that operates in an NR or 5G system 600 (for example, a gNB), and the term “E-UTRAN node” or the like may refer to a RAN node 611 that operates in an LTE or 4G system 600 (e.g., an eNB). According to various embodiments, the RAN nodes 611 may be implemented as one or more of a dedicated physical device such as a macrocell base station, and/or a low power (LP) base station for providing femtocells, picocells or other like cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells.


In some embodiments, all or parts of the RAN nodes 611 may be implemented as one or more software entities running on server computers as part of a virtual network, which may be referred to as a CRAN and/or a virtual baseband unit pool (vBBUP). In these embodiments, the CRAN or vBBUP may implement a RAN function split, such as a PDCP split wherein RRC and PDCP layers are operated by the CRAN/vBBUP and other L2 protocol entities are operated by individual RAN nodes 611; a MAC/PHY split wherein RRC, PDCP, RLC, and MAC layers are operated by the CRAN/vBBUP and the PHY layer is operated by individual RAN nodes 611; or a “lower PHY” split wherein RRC, PDCP, RLC, MAC layers and upper portions of the PHY layer are operated by the CRAN/vBBUP and lower portions of the PHY layer are operated by individual RAN nodes 611. This virtualized framework allows the freed-up processor cores of the RAN nodes 611 to perform other virtualized applications. In some implementations, an individual RAN node 611 may represent individual gNB-DUs that are connected to a gNB-CU via individual F1 interfaces (not shown by FIG. 6). In these implementations, the gNB-DUs may include one or more remote radio heads or RFEMs (see, e.g., FIG. 7), and the gNB-CU may be operated by a server that is located in the RAN 610 (not shown) or by a server pool in a similar manner as the CRAN/vBBUP. Additionally or alternatively, one or more of the RAN nodes 611 may be next generation eNBs (ng-eNBs), which are RAN nodes that provide E-UTRA user plane and control plane protocol terminations toward the UEs 601, and are connected to a 5GC (e.g., CN XR220 of Figure XR2) via an NG interface (discussed infra).


In V2X scenarios one or more of the RAN nodes 611 may be or act as RSUs. The term “Road Side Unit” or “RSU” may refer to any transportation infrastructure entity used for V2X communications. An RSU may be implemented in or by a suitable RAN node or a stationary (or relatively stationary) UE, where an RSU implemented in or by a UE may be referred to as a “UE-type RSU,” an RSU implemented in or by an eNB may be referred to as an “eNB-type RSU,” an RSU implemented in or by a gNB may be referred to as a “gNB-type RSU,” and the like. In one example, an RSU is a computing device coupled with radio frequency circuitry located on a roadside that provides connectivity support to passing vehicle UEs 601 (vUEs 601). The RSU may also include internal data storage circuitry to store intersection map geometry, traffic statistics, media, as well as applications/software to sense and control ongoing vehicular and pedestrian traffic. The RSU may operate on the 5.9 GHz Direct Short Range Communications (DSRC) band to provide very low latency communications required for high speed events, such as crash avoidance, traffic warnings, and the like. Additionally or alternatively, the RSU may operate on the cellular V2X band to provide the aforementioned low latency communications, as well as other cellular communications services. Additionally or alternatively, the RSU may operate as a Wi-Fi hotspot (2.4 GHz band) and/or provide connectivity to one or more cellular networks to provide uplink and downlink communications. The computing device(s) and some or all of the radiofrequency circuitry of the RSU may be packaged in a weatherproof enclosure suitable for outdoor installation, and may include a network interface controller to provide a wired connection (e.g., Ethernet) to a traffic signal controller and/or a backhaul network.


Any of the RAN nodes 611 can terminate the air interface protocol and can be the first point of contact for the UEs 601. In some embodiments, any of the RAN nodes 611 can fulfill various logical functions for the RAN 610 including, but not limited to, radio network controller (RNC) functions such as radio bearer management, uplink and downlink dynamic radio resource management and data packet scheduling, and mobility management.


In embodiments, the UEs 601 can be configured to communicate using OFDM communication signals with each other or with any of the RAN nodes 611 over a multicarrier communication channel in accordance with various communication techniques, such as, but not limited to, an OFDMA communication technique (e.g., for downlink communications) or a SC-FDMA communication technique (e.g., for uplink and ProSe or sidelink communications), although the scope of the embodiments is not limited in this respect. The OFDM signals can comprise a plurality of orthogonal subcarriers.


In some embodiments, a downlink resource grid can be used for downlink transmissions from any of the RAN nodes 611 to the UEs 601, while uplink transmissions can utilize similar techniques. The grid can be a time-frequency grid, called a resource grid or time-frequency resource grid, which is the physical resource in the downlink in each slot. Such a time-frequency plane representation is a common practice for OFDM systems, which makes it intuitive for radio resource allocation. Each column and each row of the resource grid corresponds to one OFDM symbol and one OFDM subcarrier, respectively. The duration of the resource grid in the time domain corresponds to one slot in a radio frame. The smallest time-frequency unit in a resource grid is denoted as a resource element. Each resource grid comprises a number of resource blocks, which describe the mapping of certain physical channels to resource elements. Each resource block comprises a collection of resource elements; in the frequency domain, this may represent the smallest quantity of resources that currently can be allocated. There are several different physical downlink channels that are conveyed using such resource blocks.


According to various embodiments, the UEs 601 and the RAN nodes 611 communicate data (for example, transmit and receive) data over a licensed medium (also referred to as the “licensed spectrum” and/or the “licensed band”) and an unlicensed shared medium (also referred to as the “unlicensed spectrum” and/or the “unlicensed band”). The licensed spectrum may include channels that operate in the frequency range of approximately 400 MHz to approximately 3.8 GHz, whereas the unlicensed spectrum may include the 5 GHz band.


To operate in the unlicensed spectrum, the UEs 601 and the RAN nodes 611 may operate using LAA, eLAA, and/or feLAA mechanisms. In these implementations, the UEs 601 and the RAN nodes 611 may perform one or more known medium-sensing operations and/or carrier-sensing operations in order to determine whether one or more channels in the unlicensed spectrum is unavailable or otherwise occupied prior to transmitting in the unlicensed spectrum. The medium/carrier sensing operations may be performed according to a listen-before-talk (LBT) protocol.


LBT is a mechanism whereby equipment (for example, UEs 601 RAN nodes 611, etc.) senses a medium (for example, a channel or carrier frequency) and transmits when the medium is sensed to be idle (or when a specific channel in the medium is sensed to be unoccupied). The medium sensing operation may include CCA, which utilizes at least ED to determine the presence or absence of other signals on a channel in order to determine if a channel is occupied or clear. This LBT mechanism allows cellular/LAA networks to coexist with incumbent systems in the unlicensed spectrum and with other LAA networks. ED may include sensing RF energy across an intended transmission band for a period of time and comparing the sensed RF energy to a predefined or configured threshold.


Typically, the incumbent systems in the 5 GHz band are WLANs based on IEEE 802.11 technologies. WLAN employs a contention-based channel access mechanism, called CSMA/CA. Here, when a WLAN node (e.g., a mobile station (MS) such as UE 601, AP 606, or the like) intends to transmit, the WLAN node may first perform CCA before transmission. Additionally, a backoff mechanism is used to avoid collisions in situations where more than one WLAN node senses the channel as idle and transmits at the same time. The backoff mechanism may be a counter that is drawn randomly within the CWS, which is increased exponentially upon the occurrence of collision and reset to a minimum value when the transmission succeeds. The LBT mechanism designed for LAA is somewhat similar to the CSMA/CA of WLAN. In some implementations, the LBT procedure for DL or UL transmission bursts including PDSCH or PUSCH transmissions, respectively, may have an LAA contention window that is variable in length between X and Y ECCA slots, where X and Y are minimum and maximum values for the CWSs for LAA. In one example, the minimum CWS for an LAA transmission may be 9 microseconds (μs); however, the size of the CWS and a MCOT (for example, a transmission burst) may be based on governmental regulatory requirements.


The LAA mechanisms are built upon CA technologies of LTE-Advanced systems. In CA, each aggregated carrier is referred to as a CC. A CC may have a bandwidth of 1.4, 3, 5, 10, 15 or 20 MHz and a maximum of five CCs can be aggregated, and therefore, a maximum aggregated bandwidth is 100 MHz. In FDD systems, the number of aggregated carriers can be different for DL and UL, where the number of UL CCs is equal to or lower than the number of DL component carriers. In some cases, individual CCs can have a different bandwidth than other CCs. In TDD systems, the number of CCs as well as the bandwidths of each CC is usually the same for DL and UL.


CA also comprises individual serving cells to provide individual CCs. The coverage of the serving cells may differ, for example, because CCs on different frequency bands will experience different pathloss. A primary service cell or PCell may provide a PCC for both UL and DL, and may handle RRC and NAS related activities. The other serving cells are referred to as SCells, and each SCell may provide an individual SCC for both UL and DL. The SCCs may be added and removed as required, while changing the PCC may require the UE 601 to undergo a handover. In LAA, eLAA, and feLAA, some or all of the SCells may operate in the unlicensed spectrum (referred to as “LAA SCells”), and the LAA SCells are assisted by a PCell operating in the licensed spectrum. When a UE is configured with more than one LAA SCell, the UE may receive UL grants on the configured LAA SCells indicating different PUSCH starting positions within a same subframe.


The PDSCH carries user data and higher-layer signaling to the UEs 601. The PDCCH carries information about the transport format and resource allocations related to the PDSCH channel, among other things. It may also inform the UEs 601 about the transport format, resource allocation, and HARQ information related to the uplink shared channel. Typically, downlink scheduling (assigning control and shared channel resource blocks to the UE 601b within a cell) may be performed at any of the RAN nodes 611 based on channel quality information fed back from any of the UEs 601. The downlink resource assignment information may be sent on the PDCCH used for (e.g., assigned to) each of the UEs 601.


The PDCCH uses CCEs to convey the control information. Before being mapped to resource elements, the PDCCH complex-valued symbols may first be organized into quadruplets, which may then be permuted using a sub-block interleaver for rate matching. Each PDCCH may be transmitted using one or more of these CCEs, where each CCE may correspond to nine sets of four physical resource elements known as REGs. Four Quadrature Phase Shift Keying (QPSK) symbols may be mapped to each REG. The PDCCH can be transmitted using one or more CCEs, depending on the size of the DCI and the channel condition. There can be four or more different PDCCH formats defined in LTE with different numbers of CCEs (e.g., aggregation level, L=1, 2, 4, or 8).


Some embodiments may use concepts for resource allocation for control channel information that are an extension of the above-described concepts. For example, some embodiments may utilize an EPDCCH that uses PDSCH resources for control information transmission. The EPDCCH may be transmitted using one or more ECCEs. Similar to above, each ECCE may correspond to nine sets of four physical resource elements known as an EREGs. An ECCE may have other numbers of EREGs in some situations.


The RAN nodes 611 may be configured to communicate with one another via interface 612. In embodiments where the system 600 is an LTE system (e.g., when CN 620 is an EPC XR120 as in Figure XR1), the interface 612 may be an X2 interface 612. The X2 interface may be defined between two or more RAN nodes 611 (e.g., two or more eNBs and the like) that connect to EPC 620, and/or between two eNBs connecting to EPC 620. In some implementations, the X2 interface may include an X2 user plane interface (X2-U) and an X2 control plane interface (X2-C). The X2-U may provide flow control mechanisms for user data packets transferred over the X2 interface, and may be used to communicate information about the delivery of user data between eNBs. For example, the X2-U may provide specific sequence number information for user data transferred from a MeNB to an SeNB; information about successful in sequence delivery of PDCP PDUs to a UE 601 from an SeNB for user data; information of PDCP PDUs that were not delivered to a UE 601; information about a current minimum desired buffer size at the SeNB for transmitting to the UE user data; and the like. The X2-C may provide intra-LTE access mobility functionality, including context transfers from source to target eNBs, user plane transport control, etc.; load management functionality; as well as inter-cell interference coordination functionality.


In embodiments where the system 600 is a 5G or NR system (e.g., when CN 620 is an 5GC XR220 as in Figure XR2), the interface 612 may be an Xn interface 612. The Xn interface is defined between two or more RAN nodes 611 (e.g., two or more gNBs and the like) that connect to 5GC 620, between a RAN node 611 (e.g., a gNB) connecting to 5GC 620 and an eNB, and/or between two eNBs connecting to 5GC 620. In some implementations, the Xn interface may include an Xn user plane (Xn-U) interface and an Xn control plane (Xn-C) interface. The Xn-U may provide non-guaranteed delivery of user plane PDUs and support/provide data forwarding and flow control functionality. The Xn-C may provide management and error handling functionality, functionality to manage the Xn-C interface; mobility support for UE 601 in a connected mode (e.g., CM-CONNECTED) including functionality to manage the UE mobility for connected mode between one or more RAN nodes 611. The mobility support may include context transfer from an old (source) serving RAN node 611 to new (target) serving RAN node 611; and control of user plane tunnels between old (source) serving RAN node 611 to new (target) serving RAN node 611. A protocol stack of the Xn-U may include a transport network layer built on Internet Protocol (IP) transport layer, and a GTP-U layer on top of a UDP and/or IP layer(s) to carry user plane PDUs. The Xn-C protocol stack may include an application layer signaling protocol (referred to as Xn Application Protocol (Xn-AP)) and a transport network layer that is built on SCTP. The SCTP may be on top of an IP layer, and may provide the guaranteed delivery of application layer messages. In the transport IP layer, point-to-point transmission is used to deliver the signaling PDUs. In other implementations, the Xn-U protocol stack and/or the Xn-C protocol stack may be same or similar to the user plane and/or control plane protocol stack(s) shown and described herein.


The RAN 610 is shown to be communicatively coupled to a core network—in this embodiment, core network (CN) 620. The CN 620 may comprise a plurality of network elements 622, which are configured to offer various data and telecommunications services to customers/subscribers (e.g., users of UEs 601) who are connected to the CN 620 via the RAN 610. The components of the CN 620 may be implemented in one physical node or separate physical nodes including components to read and execute instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium). In some embodiments, NFV may be utilized to virtualize any or all of the above-described network node functions via executable instructions stored in one or more computer-readable storage mediums (described in further detail below). A logical instantiation of the CN 620 may be referred to as a network slice, and a logical instantiation of a portion of the CN 620 may be referred to as a network sub-slice. NFV architectures and infrastructures may be used to virtualize one or more network functions, alternatively performed by proprietary hardware, onto physical resources comprising a combination of industry-standard server hardware, storage hardware, or switches. In other words, NFV systems can be used to execute virtual or reconfigurable implementations of one or more EPC components/functions.


Generally, the application server 630 may be an element offering applications that use IP bearer resources with the core network (e.g., UMTS PS domain, LTE PS data services, etc.). The application server 630 can also be configured to support one or more communication services (e.g., VoIP sessions, PTT sessions, group communication sessions, social networking services, etc.) for the UEs 601 via the EPC 620.


In embodiments, the CN 620 may be a 5GC (referred to as “5GC 620” or the like), and the RAN 610 may be connected with the CN 620 via an NG interface 613. In embodiments, the NG interface 613 may be split into two parts, an NG user plane (NG-U) interface 614, which carries traffic data between the RAN nodes 611 and a UPF, and the S1 control plane (NG-C) interface 615, which is a signaling interface between the RAN nodes 611 and AMFs. Embodiments where the CN 620 is a 5GC 620 are discussed in more detail with regard to Figure XR2.


In embodiments, the CN 620 may be a 5G CN (referred to as “5GC 620” or the like), while in other embodiments, the CN 620 may be an EPC). Where CN 620 is an EPC (referred to as “EPC 620” or the like), the RAN 610 may be connected with the CN 620 via an S1 interface 613. In embodiments, the S1 interface 613 may be split into two parts, an S1 user plane (S1-U) interface 614, which carries traffic data between the RAN nodes 611 and the S-GW, and the S1-MME interface 615, which is a signaling interface between the RAN nodes 611 and MMES.



FIG. 7 illustrates an example of infrastructure equipment 700 in accordance with various embodiments. The infrastructure equipment 700 (or “system 700”) may be implemented as a base station, radio head, RAN node such as the RAN nodes 611 and/or AP 606 shown and described previously, application server(s) 630, and/or any other element/device discussed herein. In other examples, the system 700 could be implemented in or by a UE.


The system 700 includes application circuitry 705, baseband circuitry 710, one or more radio front end modules (RFEMs) 715, memory circuitry 720, power management integrated circuitry (PMIC) 725, power tee circuitry 730, network controller circuitry 735, network interface connector 740, satellite positioning circuitry 745, and user interface 750. In some embodiments, the device 700 may include additional elements such as, for example, memory/storage, display, camera, sensor, or input/output (I/O) interface. In other embodiments, the components described below may be included in more than one device. For example, said circuitries may be separately included in more than one device for CRAN, vBBU, or other like implementations.


Application circuitry 705 includes circuitry such as, but not limited to one or more processors (or processor cores), cache memory, and one or more of low drop-out voltage regulators (LDOs), interrupt controllers, serial interfaces such as SPI, I2C or universal programmable serial interface module, real time clock (RTC), timer-counters including interval and watchdog timers, general purpose input/output (I/O or IO), memory card controllers such as Secure Digital (SD) MultiMediaCard (MMC) or similar, Universal Serial Bus (USB) interfaces, Mobile Industry Processor Interface (MIPI) interfaces and Joint Test Access Group (JTAG) test access ports. The processors (or cores) of the application circuitry 705 may be coupled with or may include memory/storage elements and may be configured to execute instructions stored in the memory/storage to enable various applications or operating systems to run on the system 700. In some implementations, the memory/storage elements may be on-chip memory circuitry, which may include any suitable volatile and/or non-volatile memory, such as DRAM, SRAM, EPROM, EEPROM, Flash memory, solid-state memory, and/or any other type of memory device technology, such as those discussed herein.


The processor(s) of application circuitry 705 may include, for example, one or more processor cores (CPUs), one or more application processors, one or more graphics processing units (GPUs), one or more reduced instruction set computing (RISC) processors, one or more Acorn RISC Machine (ARM) processors, one or more complex instruction set computing (CISC) processors, one or more digital signal processors (DSP), one or more FPGAs, one or more PLDs, one or more ASICs, one or more microprocessors or controllers, or any suitable combination thereof. In some embodiments, the application circuitry 705 may comprise, or may be, a special-purpose processor/controller to operate according to the various embodiments herein. As examples, the processor(s) of application circuitry 705 may include one or more Intel Pentium®, Core®, or Xeon® processor(s); Advanced Micro Devices (AMD) Ryzen® processor(s), Accelerated Processing Units (APUs), or Epyc® processors; ARM-based processor(s) licensed from ARM Holdings, Ltd. such as the ARM Cortex-A family of processors and the ThunderX2® provided by Cavium™, Inc.; a MIPS-based design from MIPS Technologies, Inc. such as MIPS Warrior P-class processors; and/or the like. In some embodiments, the system 700 may not utilize application circuitry 705, and instead may include a special-purpose processor/controller to process IP data received from an EPC or 5GC, for example.


In some implementations, the application circuitry 705 may include one or more hardware accelerators, which may be microprocessors, programmable processing devices, or the like. The one or more hardware accelerators may include, for example, computer vision (CV) and/or deep learning (DL) accelerators. As examples, the programmable processing devices may be one or more a field-programmable devices (FPDs) such as field-programmable gate arrays (FPGAs) and the like; programmable logic devices (PLDs) such as complex PLDs (CPLDs), high-capacity PLDs (HCPLDs), and the like; ASICs such as structured ASICs and the like; programmable SoCs (PSoCs); and the like. In such implementations, the circuitry of application circuitry 705 may comprise logic blocks or logic fabric, and other interconnected resources that may be programmed to perform various functions, such as the procedures, methods, functions, etc. of the various embodiments discussed herein. In such embodiments, the circuitry of application circuitry 705 may include memory cells (e.g., erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, static memory (e.g., static random access memory (SRAM), anti-fuses, etc.)) used to store logic blocks, logic fabric, data, etc. in look-up-tables (LUTs) and the like.


The baseband circuitry 710 may be implemented, for example, as a solder-down substrate including one or more integrated circuits, a single packaged integrated circuit soldered to a main circuit board or a multi-chip module containing two or more integrated circuits. The various hardware electronic elements of baseband circuitry 710 are discussed infra with regard to FIG. 9.


User interface circuitry 750 may include one or more user interfaces designed to enable user interaction with the system 700 or peripheral component interfaces designed to enable peripheral component interaction with the system 700. User interfaces may include, but are not limited to, one or more physical or virtual buttons (e.g., a reset button), one or more indicators (e.g., light emitting diodes (LEDs)), a physical keyboard or keypad, a mouse, a touchpad, a touchscreen, speakers or other audio emitting devices, microphones, a printer, a scanner, a headset, a display screen or display device, etc. Peripheral component interfaces may include, but are not limited to, a nonvolatile memory port, a universal serial bus (USB) port, an audio jack, a power supply interface, etc.


The radio front end modules (RFEMs) 715 may comprise a millimeter wave (mmWave) RFEM and one or more sub-mmWave radio frequency integrated circuits (RFICs). In some implementations, the one or more sub-mmWave RFICs may be physically separated from the mmWave RFEM. The RFICs may include connections to one or more antennas or antenna arrays (see e.g., antenna array 911 of FIG. 9 infra), and the RFEM may be connected to multiple antennas. In alternative implementations, both mmWave and sub-mmWave radio functions may be implemented in the same physical RFEM 715, which incorporates both mmWave antennas and sub-mmWave.


The memory circuitry 720 may include one or more of volatile memory including dynamic random access memory (DRAM) and/or synchronous dynamic random access memory (SDRAM), and nonvolatile memory (NVM) including high-speed electrically erasable memory (commonly referred to as Flash memory), phase change random access memory (PRAM), magnetoresistive random access memory (MRAM), etc., and may incorporate the three-dimensional (3D) cross-point (XPOINT) memories from Intel® and Micron®. Memory circuitry 720 may be implemented as one or more of solder down packaged integrated circuits, socketed memory modules and plug-in memory cards.


The PMIC 725 may include voltage regulators, surge protectors, power alarm detection circuitry, and one or more backup power sources such as a battery or capacitor. The power alarm detection circuitry may detect one or more of brown out (under-voltage) and surge (over-voltage) conditions. The power tee circuitry 730 may provide for electrical power drawn from a network cable to provide both power supply and data connectivity to the infrastructure equipment 700 using a single cable.


The network controller circuitry 735 may provide connectivity to a network using a standard network interface protocol such as Ethernet, Ethernet over GRE Tunnels, Ethernet over Multiprotocol Label Switching (MPLS), or some other suitable protocol. Network connectivity may be provided to/from the infrastructure equipment 700 via network interface connector 740 using a physical connection, which may be electrical (commonly referred to as a “copper interconnect”), optical, or wireless. The network controller circuitry 735 may include one or more dedicated processors and/or FPGAs to communicate using one or more of the aforementioned protocols. In some implementations, the network controller circuitry 735 may include multiple controllers to provide connectivity to other networks using the same or different protocols.


The positioning circuitry 745 includes circuitry to receive and decode signals transmitted/broadcasted by a positioning network of a global navigation satellite system (GNSS). Examples of navigation satellite constellations (or GNSS) include United States' Global Positioning System (GPS), Russia's Global Navigation System (GLONASS), the European Union's Galileo system, China's BeiDou Navigation Satellite System, a regional navigation system or GNSS augmentation system (e.g., Navigation with Indian Constellation (NAVIC), Japan's Quasi-Zenith Satellite System (QZSS), France's Doppler Orbitography and Radio-positioning Integrated by Satellite (DORIS), etc.), or the like. The positioning circuitry 745 comprises various hardware elements (e.g., including hardware devices such as switches, filters, amplifiers, antenna elements, and the like to facilitate OTA communications) to communicate with components of a positioning network, such as navigation satellite constellation nodes. In some embodiments, the positioning circuitry 745 may include a Micro-Technology for Positioning, Navigation, and Timing (Micro-PNT) IC that uses a master timing clock to perform position tracking/estimation without GNSS assistance. The positioning circuitry 745 may also be part of, or interact with, the baseband circuitry 710 and/or RFEMs 715 to communicate with the nodes and components of the positioning network. The positioning circuitry 745 may also provide position data and/or time data to the application circuitry 705, which may use the data to synchronize operations with various infrastructure (e.g., RAN nodes 611, etc.), or the like.


The components shown by FIG. 7 may communicate with one another using interface circuitry, which may include any number of bus and/or interconnect (IX) technologies such as industry standard architecture (ISA), extended ISA (EISA), peripheral component interconnect (PCI), peripheral component interconnect extended (PCIx), PCI express (PCIe), or any number of other technologies. The bus/IX may be a proprietary bus, for example, used in a SoC based system. Other bus/IX systems may be included, such as an I2C interface, an SPI interface, point to point interfaces, and a power bus, among others.



FIG. 8 illustrates an example of a platform 800 (or “device 800”) in accordance with various embodiments. In embodiments, the computer platform 800 may be suitable for use as UEs 601, application servers 630, and/or any other element/device discussed herein. The platform 800 may include any combinations of the components shown in the example. The components of platform 800 may be implemented as integrated circuits (ICs), portions thereof, discrete electronic devices, or other modules, logic, hardware, software, firmware, or a combination thereof adapted in the computer platform 800, or as components otherwise incorporated within a chassis of a larger system. The block diagram of FIG. 8 is intended to show a high level view of components of the computer platform 800. However, some of the components shown may be omitted, additional components may be present, and different arrangement of the components shown may occur in other implementations.


Application circuitry 805 includes circuitry such as, but not limited to one or more processors (or processor cores), cache memory, and one or more of LDOs, interrupt controllers, serial interfaces such as SPI, I2C or universal programmable serial interface module, RTC, timer-counters including interval and watchdog timers, general purpose I/O, memory card controllers such as SD MMC or similar, USB interfaces, MIPI interfaces, and JTAG test access ports. The processors (or cores) of the application circuitry 805 may be coupled with or may include memory/storage elements and may be configured to execute instructions stored in the memory/storage to enable various applications or operating systems to run on the system 800. In some implementations, the memory/storage elements may be on-chip memory circuitry, which may include any suitable volatile and/or non-volatile memory, such as DRAM, SRAM, EPROM, EEPROM, Flash memory, solid-state memory, and/or any other type of memory device technology, such as those discussed herein.


The processor(s) of application circuitry 705 may include, for example, one or more processor cores, one or more application processors, one or more GPUs, one or more RISC processors, one or more ARM processors, one or more CISC processors, one or more DSP, one or more FPGAs, one or more PLDs, one or more ASICs, one or more microprocessors or controllers, a multithreaded processor, an ultra-low voltage processor, an embedded processor, some other known processing element, or any suitable combination thereof. In some embodiments, the application circuitry 705 may comprise, or may be, a special-purpose processor/controller to operate according to the various embodiments herein.


As examples, the processor(s) of application circuitry 805 may include an Intel® Architecture Core™ based processor, such as a Quark™, an Atom™, an i3, an i5, an i7, or an MCU-class processor, or another such processor available from Intel® Corporation, Santa Clara, Calif. The processors of the application circuitry 805 may also be one or more of Advanced Micro Devices (AMD) Ryzen® processor(s) or Accelerated Processing Units (APUs); A5-A9 processor(s) from Apple® Inc., Snapdragon™ processor(s) from Qualcomm® Technologies, Inc., Texas Instruments, Inc.® Open Multimedia Applications Platform (OMAP)™ processor(s); a MIPS-based design from MIPS Technologies, Inc. such as MIPS Warrior M-class, Warrior I-class, and Warrior P-class processors; an ARM-based design licensed from ARM Holdings, Ltd., such as the ARM Cortex-A, Cortex-R, and Cortex-M family of processors; or the like. In some implementations, the application circuitry 805 may be a part of a system on a chip (SoC) in which the application circuitry 805 and other components are formed into a single integrated circuit, or a single package, such as the Edison™ or Galileo™ SoC boards from Intel® Corporation.


Additionally or alternatively, application circuitry 805 may include circuitry such as, but not limited to, one or more a field-programmable devices (FPDs) such as FPGAs and the like; programmable logic devices (PLDs) such as complex PLDs (CPLDs), high-capacity PLDs (HCPLDs), and the like; ASICs such as structured ASICs and the like; programmable SoCs (PSoCs); and the like. In such embodiments, the circuitry of application circuitry 805 may comprise logic blocks or logic fabric, and other interconnected resources that may be programmed to perform various functions, such as the procedures, methods, functions, etc. of the various embodiments discussed herein. In such embodiments, the circuitry of application circuitry 805 may include memory cells (e.g., erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, static memory (e.g., static random access memory (SRAM), anti-fuses, etc.)) used to store logic blocks, logic fabric, data, etc. in look-up tables (LUTs) and the like.


The baseband circuitry 810 may be implemented, for example, as a solder-down substrate including one or more integrated circuits, a single packaged integrated circuit soldered to a main circuit board or a multi-chip module containing two or more integrated circuits. The various hardware electronic elements of baseband circuitry 810 are discussed infra with regard to FIG. 9.


The RFEMs 815 may comprise a millimeter wave (mmWave) RFEM and one or more sub-mmWave radio frequency integrated circuits (RFICs). In some implementations, the one or more sub-mmWave RFICs may be physically separated from the mmWave RFEM. The RFICs may include connections to one or more antennas or antenna arrays (see e.g., antenna array 911 of FIG. 9 infra), and the RFEM may be connected to multiple antennas. In alternative implementations, both mmWave and sub-mmWave radio functions may be implemented in the same physical RFEM 815, which incorporates both mmWave antennas and sub-mmWave.


The memory circuitry 820 may include any number and type of memory devices used to provide for a given amount of system memory. As examples, the memory circuitry 820 may include one or more of volatile memory including random access memory (RAM), dynamic RAM (DRAM) and/or synchronous dynamic RAM (SDRAM), and nonvolatile memory (NVM) including high-speed electrically erasable memory (commonly referred to as Flash memory), phase change random access memory (PRAM), magnetoresistive random access memory (MRAM), etc. The memory circuitry 820 may be developed in accordance with a Joint Electron Devices Engineering Council (JEDEC) low power double data rate (LPDDR)-based design, such as LPDDR2, LPDDR3, LPDDR4, or the like. Memory circuitry 820 may be implemented as one or more of solder down packaged integrated circuits, single die package (SDP), dual die package (DDP) or quad die package (Q17P), socketed memory modules, dual inline memory modules (DIMMs) including microDIMMs or MiniDIMMs, and/or soldered onto a motherboard via a ball grid array (BGA). In low power implementations, the memory circuitry 820 may be on-die memory or registers associated with the application circuitry 805. To provide for persistent storage of information such as data, applications, operating systems and so forth, memory circuitry 820 may include one or more mass storage devices, which may include, inter alia, a solid state disk drive (SSDD), hard disk drive (HDD), a micro HDD, resistance change memories, phase change memories, holographic memories, or chemical memories, among others. For example, the computer platform 800 may incorporate the three-dimensional (3D) cross-point (XPOINT) memories from Intel® and Micron®.


Removable memory circuitry 823 may include devices, circuitry, enclosures/housings, ports or receptacles, etc. used to couple portable data storage devices with the platform 800. These portable data storage devices may be used for mass storage purposes, and may include, for example, flash memory cards (e.g., Secure Digital (SD) cards, microSD cards, xD picture cards, and the like), and USB flash drives, optical discs, external HDDs, and the like.


The platform 800 may also include interface circuitry (not shown) that is used to connect external devices with the platform 800. The external devices connected to the platform 800 via the interface circuitry include sensor circuitry 821 and electro-mechanical components (EMCs) 822, as well as removable memory devices coupled to removable memory circuitry 823.


The sensor circuitry 821 include devices, modules, or subsystems whose purpose is to detect events or changes in its environment and send the information (sensor data) about the detected events to some other a device, module, subsystem, etc. Examples of such sensors include, inter alia, inertia measurement units (IMUs) comprising accelerometers, gyroscopes, and/or magnetometers; microelectromechanical systems (MEMS) or nanoelectromechanical systems (NEMS) comprising 3-axis accelerometers, 3-axis gyroscopes, and/or magnetometers; level sensors; flow sensors; temperature sensors (e.g., thermistors); pressure sensors; barometric pressure sensors; gravimeters; altimeters; image capture devices (e.g., cameras or lensless apertures); light detection and ranging (LiDAR) sensors; proximity sensors (e.g., infrared radiation detector and the like), depth sensors, ambient light sensors, ultrasonic transceivers; microphones or other like audio capture devices; etc.


EMCs 822 include devices, modules, or subsystems whose purpose is to enable platform 800 to change its state, position, and/or orientation, or move or control a mechanism or (sub)system. Additionally, EMCs 822 may be configured to generate and send messages/signalling to other components of the platform 800 to indicate a current state of the EMCs 822. Examples of the EMCs 822 include one or more power switches, relays including electromechanical relays (EMRs) and/or solid state relays (SSRs), actuators (e.g., valve actuators, etc.), an audible sound generator, a visual warning device, motors (e.g., DC motors, stepper motors, etc.), wheels, thrusters, propellers, claws, clamps, hooks, and/or other like electro-mechanical components. In embodiments, platform 800 is configured to operate one or more EMCs 822 based on one or more captured events and/or instructions or control signals received from a service provider and/or various clients.


In some implementations, the interface circuitry may connect the platform 800 with positioning circuitry 845. The positioning circuitry 845 includes circuitry to receive and decode signals transmitted/broadcasted by a positioning network of a GNSS. Examples of navigation satellite constellations (or GNSS) include United States' GPS, Russia's GLONASS, the European Union's Galileo system, China's BeiDou Navigation Satellite System, a regional navigation system or GNSS augmentation system (e.g., NAVIC), Japan's QZSS, France's DORIS, etc.), or the like. The positioning circuitry 845 comprises various hardware elements (e.g., including hardware devices such as switches, filters, amplifiers, antenna elements, and the like to facilitate OTA communications) to communicate with components of a positioning network, such as navigation satellite constellation nodes. In some embodiments, the positioning circuitry 845 may include a Micro-PNT IC that uses a master timing clock to perform position tracking/estimation without GNSS assistance. The positioning circuitry 845 may also be part of, or interact with, the baseband circuitry 710 and/or RFEMs 815 to communicate with the nodes and components of the positioning network. The positioning circuitry 845 may also provide position data and/or time data to the application circuitry 805, which may use the data to synchronize operations with various infrastructure (e.g., radio base stations), for turn-by-turn navigation applications, or the like


In some implementations, the interface circuitry may connect the platform 800 with Near-Field Communication (NFC) circuitry 840. NFC circuitry 840 is configured to provide contactless, short-range communications based on radio frequency identification (RFID) standards, wherein magnetic field induction is used to enable communication between NFC circuitry 840 and NFC-enabled devices external to the platform 800 (e.g., an “NFC touchpoint”). NFC circuitry 840 comprises an NFC controller coupled with an antenna element and a processor coupled with the NFC controller. The NFC controller may be a chip/IC providing NFC functionalities to the NFC circuitry 840 by executing NFC controller firmware and an NFC stack. The NFC stack may be executed by the processor to control the NFC controller, and the NFC controller firmware may be executed by the NFC controller to control the antenna element to emit short-range RF signals. The RF signals may power a passive NFC tag (e.g., a microchip embedded in a sticker or wristband) to transmit stored data to the NFC circuitry 840, or initiate data transfer between the NFC circuitry 840 and another active NFC device (e.g., a smartphone or an NFC-enabled POS terminal) that is proximate to the platform 800.


The driver circuitry 846 may include software and hardware elements that operate to control particular devices that are embedded in the platform 800, attached to the platform 800, or otherwise communicatively coupled with the platform 800. The driver circuitry 846 may include individual drivers allowing other components of the platform 800 to interact with or control various input/output (I/O) devices that may be present within, or connected to, the platform 800. For example, driver circuitry 846 may include a display driver to control and allow access to a display device, a touchscreen driver to control and allow access to a touchscreen interface of the platform 800, sensor drivers to obtain sensor readings of sensor circuitry 821 and control and allow access to sensor circuitry 821, EMC drivers to obtain actuator positions of the EMCs 822 and/or control and allow access to the EMCs 822, a camera driver to control and allow access to an embedded image capture device, audio drivers to control and allow access to one or more audio devices.


The power management integrated circuitry (PMIC) 825 (also referred to as “power management circuitry 825”) may manage power provided to various components of the platform 800. In particular, with respect to the baseband circuitry 810, the PMIC 825 may control power-source selection, voltage scaling, battery charging, or DC-to-DC conversion. The PMIC 825 may often be included when the platform 800 is capable of being powered by a battery 830, for example, when the device is included in a UE 601, XR101, XR201.


In some embodiments, the PMIC 825 may control, or otherwise be part of, various power saving mechanisms of the platform 800. For example, if the platform 800 is in an RRC_Connected state, where it is still connected to the RAN node as it expects to receive traffic shortly, then it may enter a state known as Discontinuous Reception Mode (DRX) after a period of inactivity. During this state, the platform 800 may power down for brief intervals of time and thus save power. If there is no data traffic activity for an extended period of time, then the platform 800 may transition off to an RRC Idle state, where it disconnects from the network and does not perform operations such as channel quality feedback, handover, etc. The platform 800 goes into a very low power state and it performs paging where again it periodically wakes up to listen to the network and then powers down again. The platform 800 may not receive data in this state; in order to receive data, it must transition back to RRC_Connected state. An additional power saving mode may allow a device to be unavailable to the network for periods longer than a paging interval (ranging from seconds to a few hours). During this time, the device is totally unreachable to the network and may power down completely. Any data sent during this time incurs a large delay and it is assumed the delay is acceptable.


A battery 830 may power the platform 800, although in some examples the platform 800 may be mounted deployed in a fixed location, and may have a power supply coupled to an electrical grid. The battery 830 may be a lithium ion battery, a metal-air battery, such as a zinc-air battery, an aluminum-air battery, a lithium-air battery, and the like. In some implementations, such as in V2X applications, the battery 830 may be a typical lead-acid automotive battery.


In some implementations, the battery 830 may be a “smart battery,” which includes or is coupled with a Battery Management System (BMS) or battery monitoring integrated circuitry. The BMS may be included in the platform 800 to track the state of charge (SoCh) of the battery 830. The BMS may be used to monitor other parameters of the battery 830 to provide failure predictions, such as the state of health (SoH) and the state of function (SoF) of the battery 830. The BMS may communicate the information of the battery 830 to the application circuitry 805 or other components of the platform 800. The BMS may also include an analog-to-digital (ADC) convertor that allows the application circuitry 805 to directly monitor the voltage of the battery 830 or the current flow from the battery 830. The battery parameters may be used to determine actions that the platform 800 may perform, such as transmission frequency, network operation, sensing frequency, and the like.


A power block, or other power supply coupled to an electrical grid may be coupled with the BMS to charge the battery 830. In some examples, the power block XS30 may be replaced with a wireless power receiver to obtain the power wirelessly, for example, through a loop antenna in the computer platform 800. In these examples, a wireless battery charging circuit may be included in the BMS. The specific charging circuits chosen may depend on the size of the battery 830, and thus, the current required. The charging may be performed using the Airfuel standard promulgated by the Airfuel Alliance, the Qi wireless charging standard promulgated by the Wireless Power Consortium, or the Rezence charging standard promulgated by the Alliance for Wireless Power, among others.


User interface circuitry 850 includes various input/output (I/O) devices present within, or connected to, the platform 800, and includes one or more user interfaces designed to enable user interaction with the platform 800 and/or peripheral component interfaces designed to enable peripheral component interaction with the platform 800. The user interface circuitry 850 includes input device circuitry and output device circuitry. Input device circuitry includes any physical or virtual means for accepting an input including, inter alia, one or more physical or virtual buttons (e.g., a reset button), a physical keyboard, keypad, mouse, touchpad, touchscreen, microphones, scanner, headset, and/or the like. The output device circuitry includes any physical or virtual means for showing information or otherwise conveying information, such as sensor readings, actuator position(s), or other like information. Output device circuitry may include any number and/or combinations of audio or visual display, including, inter alia, one or more simple visual outputs/indicators (e.g., binary status indicators (e.g., light emitting diodes (LEDs)) and multi-character visual outputs, or more complex outputs such as display devices or touchscreens (e.g., Liquid Crystal Displays (LCD), LED displays, quantum dot displays, projectors, etc.), with the output of characters, graphics, multimedia objects, and the like being generated or produced from the operation of the platform 800. The output device circuitry may also include speakers or other audio emitting devices, printer(s), and/or the like. In some embodiments, the sensor circuitry 821 may be used as the input device circuitry (e.g., an image capture device, motion capture device, or the like) and one or more EMCs may be used as the output device circuitry (e.g., an actuator to provide haptic feedback or the like). In another example, NFC circuitry comprising an NFC controller coupled with an antenna element and a processing device may be included to read electronic tags and/or connect with another NFC-enabled device. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a USB port, an audio jack, a power supply interface, etc.


Although not shown, the components of platform 800 may communicate with one another using a suitable bus or interconnect (IX) technology, which may include any number of technologies, including ISA, EISA, PCI, PCIx, PCIe, a Time-Trigger Protocol (TTP) system, a FlexRay system, or any number of other technologies. The bus/IX may be a proprietary bus/IX, for example, used in a SoC based system. Other bus/IX systems may be included, such as an I2C interface, an SPI interface, point-to-point interfaces, and a power bus, among others.



FIG. 9 illustrates example components of baseband circuitry 910 and radio front end modules (RFEM) 915 in accordance with various embodiments. The baseband circuitry 910 corresponds to the baseband circuitry 710 and 810 of FIGS. 7 and 8, respectively. The RFEM 915 corresponds to the RFEM 715 and 815 of FIGS. 7 and 8, respectively. As shown, the RFEMs 915 may include Radio Frequency (RF) circuitry 906, front-end module (FEM) circuitry 908, antenna array 911 coupled together at least as shown.


The baseband circuitry 910 includes circuitry and/or control logic configured to carry out various radio/network protocol and radio control functions that enable communication with one or more radio networks via the RF circuitry 906. The radio control functions may include, but are not limited to, signal modulation/demodulation, encoding/decoding, radio frequency shifting, etc. In some embodiments, modulation/demodulation circuitry of the baseband circuitry 910 may include Fast-Fourier Transform (FFT), precoding, or constellation mapping/demapping functionality. In some embodiments, encoding/decoding circuitry of the baseband circuitry 910 may include convolution, tail-biting convolution, turbo, Viterbi, or Low Density Parity Check (LDPC) encoder/decoder functionality. Embodiments of modulation/demodulation and encoder/decoder functionality are not limited to these examples and may include other suitable functionality in other embodiments. The baseband circuitry 910 is configured to process baseband signals received from a receive signal path of the RF circuitry 906 and to generate baseband signals for a transmit signal path of the RF circuitry 906. The baseband circuitry 910 is configured to interface with application circuitry 705/805 (see FIGS. 7 and 8) for generation and processing of the baseband signals and for controlling operations of the RF circuitry 906. The baseband circuitry 910 may handle various radio control functions.


The aforementioned circuitry and/or control logic of the baseband circuitry 910 may include one or more single or multi-core processors. For example, the one or more processors may include a 3G baseband processor 904A, a 4G/LTE baseband processor 904B, a 5G/NR baseband processor 904C, or some other baseband processor(s) 904D for other existing generations, generations in development or to be developed in the future (e.g., sixth generation (6G), etc.). In other embodiments, some or all of the functionality of baseband processors 904A-D may be included in modules stored in the memory 904G and executed via a Central Processing Unit (CPU) 904E. In other embodiments, some or all of the functionality of baseband processors 904A-D may be provided as hardware accelerators (e.g., FPGAs, ASICs, etc.) loaded with the appropriate bit streams or logic blocks stored in respective memory cells. In various embodiments, the memory 904G may store program code of a real-time OS (RTOS), which when executed by the CPU 904E (or other baseband processor), is to cause the CPU 904E (or other baseband processor) to manage resources of the baseband circuitry 910, schedule tasks, etc. Examples of the RTOS may include Operating System Embedded (OSE)™ provided by Enea®, Nucleus RTOS™ provided by Mentor Graphics®, Versatile Real-Time Executive (VRTX) provided by Mentor Graphics®, ThreadX™ provided by Express Logic®, FreeRTOS, REX OS provided by Qualcomm®, OKL4 provided by Open Kernel (OK) Labs®, or any other suitable RTOS, such as those discussed herein. In addition, the baseband circuitry 910 includes one or more audio digital signal processor(s) (DSP) 904F. The audio DSP(s) 904F include elements for compression/decompression and echo cancellation and may include other suitable processing elements in other embodiments.


In some embodiments, each of the processors 904A-904E include respective memory interfaces to send/receive data to/from the memory 904G. The baseband circuitry 910 may further include one or more interfaces to communicatively couple to other circuitries/devices, such as an interface to send/receive data to/from memory external to the baseband circuitry 910; an application circuitry interface to send/receive data to/from the application circuitry 705/805 of FIGS. 7-9); an RF circuitry interface to send/receive data to/from RF circuitry 906 of FIG. 9; a wireless hardware connectivity interface to send/receive data to/from one or more wireless hardware elements (e.g., Near Field Communication (NFC) components, Bluetooth®/Bluetooth® Low Energy components, Wi-Fi® components, and/or the like); and a power management interface to send/receive power or control signals to/from the PMIC 825.


In alternate embodiments (which may be combined with the above described embodiments), baseband circuitry 910 comprises one or more digital baseband systems, which are coupled with one another via an interconnect subsystem and to a CPU subsystem, an audio subsystem, and an interface subsystem. The digital baseband subsystems may also be coupled to a digital baseband interface and a mixed-signal baseband subsystem via another interconnect subsystem. Each of the interconnect subsystems may include a bus system, point-to-point connections, network-on-chip (NOC) structures, and/or some other suitable bus or interconnect technology, such as those discussed herein. The audio subsystem may include DSP circuitry, buffer memory, program memory, speech processing accelerator circuitry, data converter circuitry such as analog-to-digital and digital-to-analog converter circuitry, analog circuitry including one or more of amplifiers and filters, and/or other like components. In an aspect of the present disclosure, baseband circuitry 910 may include protocol processing circuitry with one or more instances of control circuitry (not shown) to provide control functions for the digital baseband circuitry and/or radio frequency circuitry (e.g., the radio front end modules 915).


Although not shown by FIG. 9, in some embodiments, the baseband circuitry 910 includes individual processing device(s) to operate one or more wireless communication protocols (e.g., a “multi-protocol baseband processor” or “protocol processing circuitry”) and individual processing device(s) to implement PHY layer functions. In these embodiments, the PHY layer functions include the aforementioned radio control functions. In these embodiments, the protocol processing circuitry operates or implements various protocol layers/entities of one or more wireless communication protocols. In a first example, the protocol processing circuitry may operate LTE protocol entities and/or 5G/NR protocol entities when the baseband circuitry 910 and/or RF circuitry 906 are part of mmWave communication circuitry or some other suitable cellular communication circuitry. In the first example, the protocol processing circuitry would operate MAC, RLC, PDCP, SDAP, RRC, and NAS functions. In a second example, the protocol processing circuitry may operate one or more IEEE-based protocols when the baseband circuitry 910 and/or RF circuitry 906 are part of a Wi-Fi communication system. In the second example, the protocol processing circuitry would operate Wi-Fi MAC and logical link control (LLC) functions. The protocol processing circuitry may include one or more memory structures (e.g., 904G) to store program code and data for operating the protocol functions, as well as one or more processing cores to execute the program code and perform various operations using the data. The baseband circuitry 910 may also support radio communications for more than one wireless protocol.


The various hardware elements of the baseband circuitry 910 discussed herein may be implemented, for example, as a solder-down substrate including one or more integrated circuits (ICs), a single packaged IC soldered to a main circuit board or a multi-chip module containing two or more ICs. In one example, the components of the baseband circuitry 910 may be suitably combined in a single chip or chipset, or disposed on a same circuit board. In another example, some or all of the constituent components of the baseband circuitry 910 and RF circuitry 906 may be implemented together such as, for example, a system on a chip (SoC) or System-in-Package (SiP). In another example, some or all of the constituent components of the baseband circuitry 910 may be implemented as a separate SoC that is communicatively coupled with and RF circuitry 906 (or multiple instances of RF circuitry 906). In yet another example, some or all of the constituent components of the baseband circuitry 910 and the application circuitry 705/805 may be implemented together as individual SoCs mounted to a same circuit board (e.g., a “multi-chip package”).


In some embodiments, the baseband circuitry 910 may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry 910 may support communication with an E-UTRAN or other WMAN, a WLAN, a WPAN. Embodiments in which the baseband circuitry 910 is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.


RF circuitry 906 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry 906 may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. RF circuitry 906 may include a receive signal path, which may include circuitry to down-convert RF signals received from the FEM circuitry 908 and provide baseband signals to the baseband circuitry 910. RF circuitry 906 may also include a transmit signal path, which may include circuitry to up-convert baseband signals provided by the baseband circuitry 910 and provide RF output signals to the FEM circuitry 908 for transmission.


In some embodiments, the receive signal path of the RF circuitry 906 may include mixer circuitry 906a, amplifier circuitry 906b and filter circuitry 906c. In some embodiments, the transmit signal path of the RF circuitry 906 may include filter circuitry 906c and mixer circuitry 906a. RF circuitry 906 may also include synthesizer circuitry 906d for synthesizing a frequency for use by the mixer circuitry 906a of the receive signal path and the transmit signal path. In some embodiments, the mixer circuitry 906a of the receive signal path may be configured to down-convert RF signals received from the FEM circuitry 908 based on the synthesized frequency provided by synthesizer circuitry 906d. The amplifier circuitry 906b may be configured to amplify the down-converted signals and the filter circuitry 906c may be a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals. Output baseband signals may be provided to the baseband circuitry 910 for further processing. In some embodiments, the output baseband signals may be zero-frequency baseband signals, although this is not a requirement. In some embodiments, mixer circuitry 906a of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect.


In some embodiments, the mixer circuitry 906a of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry 906d to generate RF output signals for the FEM circuitry 908. The baseband signals may be provided by the baseband circuitry 910 and may be filtered by filter circuitry 906c.


In some embodiments, the mixer circuitry 906a of the receive signal path and the mixer circuitry 906a of the transmit signal path may include two or more mixers and may be arranged for quadrature downconversion and upconversion, respectively. In some embodiments, the mixer circuitry 906a of the receive signal path and the mixer circuitry 906a of the transmit signal path may include two or more mixers and may be arranged for image rejection (e.g., Hartley image rejection). In some embodiments, the mixer circuitry 906a of the receive signal path and the mixer circuitry 906a of the transmit signal path may be arranged for direct downconversion and direct upconversion, respectively. In some embodiments, the mixer circuitry 906a of the receive signal path and the mixer circuitry 906a of the transmit signal path may be configured for super-heterodyne operation.


In some embodiments, the output baseband signals and the input baseband signals may be analog baseband signals, although the scope of the embodiments is not limited in this respect. In some alternate embodiments, the output baseband signals and the input baseband signals may be digital baseband signals. In these alternate embodiments, the RF circuitry 906 may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry and the baseband circuitry 910 may include a digital baseband interface to communicate with the RF circuitry 906.


In some dual-mode embodiments, a separate radio IC circuitry may be provided for processing signals for each spectrum, although the scope of the embodiments is not limited in this respect.


In some embodiments, the synthesizer circuitry 906d may be a fractional-N synthesizer or a fractional N/N+1 synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable. For example, synthesizer circuitry 906d may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider.


The synthesizer circuitry 906d may be configured to synthesize an output frequency for use by the mixer circuitry 906a of the RF circuitry 906 based on a frequency input and a divider control input. In some embodiments, the synthesizer circuitry 906d may be a fractional N/N+1 synthesizer.


In some embodiments, frequency input may be provided by a voltage controlled oscillator (VCO), although that is not a requirement. Divider control input may be provided by either the baseband circuitry 910 or the application circuitry 705/805 depending on the desired output frequency. In some embodiments, a divider control input (e.g., N) may be determined from a look-up table based on a channel indicated by the application circuitry 705/805.


Synthesizer circuitry 906d of the RF circuitry 906 may include a divider, a delay-locked loop (DLL), a multiplexer and a phase accumulator. In some embodiments, the divider may be a dual modulus divider (DMD) and the phase accumulator may be a digital phase accumulator (DPA). In some embodiments, the DMD may be configured to divide the input signal by either N or N+1 (e.g., based on a carry out) to provide a fractional division ratio. In some example embodiments, the DLL may include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip-flop. In these embodiments, the delay elements may be configured to break a VCO period up into Nd equal packets of phase, where Nd is the number of delay elements in the delay line. In this way, the DLL provides negative feedback to help ensure that the total delay through the delay line is one VCO cycle.


In some embodiments, synthesizer circuitry 906d may be configured to generate a carrier frequency as the output frequency, while in other embodiments, the output frequency may be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency) and used in conjunction with quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other. In some embodiments, the output frequency may be a LO frequency (fLO). In some embodiments, the RF circuitry 906 may include an IQ/polar converter.


FEM circuitry 908 may include a receive signal path, which may include circuitry configured to operate on RF signals received from antenna array 911, amplify the received signals and provide the amplified versions of the received signals to the RF circuitry 906 for further processing. FEM circuitry 908 may also include a transmit signal path, which may include circuitry configured to amplify signals for transmission provided by the RF circuitry 906 for transmission by one or more of antenna elements of antenna array 911. In various embodiments, the amplification through the transmit or receive signal paths may be done solely in the RF circuitry 906, solely in the FEM circuitry 908, or in both the RF circuitry 906 and the FEM circuitry 908.


In some embodiments, the FEM circuitry 908 may include a TX/RX switch to switch between transmit mode and receive mode operation. The FEM circuitry 908 may include a receive signal path and a transmit signal path. The receive signal path of the FEM circuitry 908 may include an LNA to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry 906). The transmit signal path of the FEM circuitry 908 may include a power amplifier (PA) to amplify input RF signals (e.g., provided by RF circuitry 906), and one or more filters to generate RF signals for subsequent transmission by one or more antenna elements of the antenna array 911.


The antenna array 911 comprises one or more antenna elements, each of which is configured convert electrical signals into radio waves to travel through the air and to convert received radio waves into electrical signals. For example, digital baseband signals provided by the baseband circuitry 910 is converted into analog RF signals (e.g., modulated waveform) that will be amplified and transmitted via the antenna elements of the antenna array 911 including one or more antenna elements (not shown). The antenna elements may be omnidirectional, direction, or a combination thereof. The antenna elements may be formed in a multitude of arranges as are known and/or discussed herein. The antenna array 911 may comprise microstrip antennas or printed antennas that are fabricated on the surface of one or more printed circuit boards. The antenna array 911 may be formed in as a patch of metal foil (e.g., a patch antenna) in a variety of shapes, and may be coupled with the RF circuitry 906 and/or FEM circuitry 908 using metal transmission lines or the like.


Processors of the application circuitry 705/805 and processors of the baseband circuitry 910 may be used to execute elements of one or more instances of a protocol stack. For example, processors of the baseband circuitry 910, alone or in combination, may be used execute Layer 3, Layer 2, or Layer 1 functionality, while processors of the application circuitry 705/805 may utilize data (e.g., packet data) received from these layers and further execute Layer 4 functionality (e.g., TCP and UDP layers). As referred to herein, Layer 3 may comprise a RRC layer, described in further detail below. As referred to herein, Layer 2 may comprise a MAC layer, an RLC layer, and a PDCP layer, described in further detail below. As referred to herein, Layer 1 may comprise a PHY layer of a UE/RAN node, described in further detail below.



FIG. 10 is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein. Specifically, FIG. 10 shows a diagrammatic representation of hardware resources 1000 including one or more processors (or processor cores) 1010, one or more memory/storage devices 1020, and one or more communication resources 1030, each of which may be communicatively coupled via a bus 1040. For embodiments where node virtualization (e.g., NFV) is utilized, a hypervisor 1002 may be executed to provide an execution environment for one or more network slices/sub-slices to utilize the hardware resources 1000.


The processors 1010 may include, for example, a processor 1012 and a processor 1014. The processor(s) 1010 may be, for example, a central processing unit (CPU), a reduced instruction set computing (RISC) processor, a complex instruction set computing (CISC) processor, a graphics processing unit (GPU), a DSP such as a baseband processor, an ASIC, an FPGA, a radio-frequency integrated circuit (RFIC), another processor (including those discussed herein), or any suitable combination thereof.


The memory/storage devices 1020 may include main memory, disk storage, or any suitable combination thereof. The memory/storage devices 1020 may include, but are not limited to, any type of volatile or nonvolatile memory such as dynamic random access memory (DRAM), static random access memory (SRAM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), Flash memory, solid-state storage, etc.


The communication resources 1030 may include interconnection or network interface components or other suitable devices to communicate with one or more peripheral devices 1004 or one or more databases 1006 via a network 1008. For example, the communication resources 1030 may include wired communication components (e.g., for coupling via USB), cellular communication components, NFC components, Bluetooth® (or Bluetooth® Low Energy) components, Wi-Fi® components, and other communication components..


Instructions 1050 may comprise software, a program, an application, an applet, an app, or other executable code for causing at least any of the processors 1010 to perform any one or more of the methodologies discussed herein. The instructions 1050 may reside, completely or partially, within at least one of the processors 1010 (e.g., within the processor's cache memory), the memory/storage devices 1020, or any suitable combination thereof. Furthermore, any portion of the instructions 1050 may be transferred to the hardware resources 1000 from any combination of the peripheral devices 1004 or the databases 1006. Accordingly, the memory of processors 1010, the memory/storage devices 1020, the peripheral devices 1004, and the databases 1006 are examples of computer-readable and machine-readable media.


Example Procedures


In some embodiments, the electronic device(s), network(s), system(s), chip(s) or component(s), or portions or implementations thereof, of FIGS. 6-10 or some other figure herein, may be configured to perform one or more processes, techniques, or methods as described herein, or portions thereof. One such process 400 is depicted in FIG. 4. For example, the process 400 may include, at 404, determining a CG-PUSCH transmission is to overlap with transmission of grant-based UL control information. At 408, the process 400 may further include determining whether to transmit the CG-PUSCH transmission based on a set of predetermined rules. In some embodiments, the process 400 may be performed by a UE or a portion thereof (e.g., baseband circuitry of the UE).



FIG. 5 illustrates another process 500 in accordance with various embodiments. At 504, the process 500 may include determining that a CG-PUSCH transmission scheduled for a UE is to overlap with a transmission of grant-based UL control information of the UE. At 508, the process may further include determining whether the CG-PUSCH transmission will be transmitted based on a set of predetermined rules. In some embodiments, the process 500 may be performed by a gNB or a portion thereof (e.g., baseband circuitry of the gNB).


For one or more embodiments, at least one of the components set forth in one or more of the preceding figures may be configured to perform one or more operations, techniques, processes, and/or methods as set forth in the example section below. For example, the baseband circuitry as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth below. For another example, circuitry associated with a UE, base station, network element, etc. as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth below in the example section.


EXAMPLES

Example 1 may include configuring or utilizing a rule applied when PUCCH overlaps with CG-PUSCH within a PUCCH group and a timeline requirement as defined in Section 9.2.5 in TS38.213 is satisfied.


Example 2 may include the method of example 1 or some other example herein, further comprising: when a PUCCH overlaps with CG-PUSCH within a PUCCH group and the timeline requirement as defined in Section 9.2.5 in TS38.213 is satisfied, multiplexing existing UCI together with a CG-UCI on the CG-PUSCH.


Example 3 may include the method of examples 1-2 or some other example herein, wherein the CG-UCI is always mapped starting after the DMRS symbol(s).


Example 4 may include the method of examples 1-3 or some other example herein, wherein the mapping order for all other existing UCIs may be done as follows: CG-UCI is followed by HARQ-ACK, CSI part 1 and CSI part 2 if any, and then finally data.


Example 5 may include the method of examples 1-3 or some other example herein, wherein the mapping order can be defined as follows: HARQ-ACK is followed by CG-UCI, CSI part 1 and CSI part 2 if any, and then data.


Example 6 may include the method of examples 1-3 or some other example herein, wherein in order to avoid blind detection or extra computing at the gNB, the CG-UCI may contain one or two bits indicating whether HARQ-ACK and/or CSI are multiplexed: if one bit is used, this might indicate whether multiplexing is performed or not; if two bits are provided, these will indicate whether multiplexing is not performed (e.g., ‘00’), but also specifically whether HARQ-ACK feedback (e.g., ‘01’) or CSI (e.g., ‘10’) or both (e.g., ‘11’) are also multiplexed.


Example 7 may include the method of examples 1-3 or some other example herein, wherein CG-UCI and HARQ-ACK feedback are encoded together, regardless of the HARQ-ACK feedback payload. The actual number of HARQ-ACK bits could be jointly coded with CG-UCI. Alternatively, if the number of HARQ-ACK bits is less than or equal to K bits, e.g. K=2, K bits are added to CG-UCI and joint coding is performed. If the number of HARQ-ACK bits is higher than K, the actual number of HARQ-ACK bits could be jointly coded with CG-UCI. For the decoding of CG-UCI, the gNB can assume different number of bits for GC-UCI based on the knowledge of whether HARQ-ACK is transmitted and how many HARQ-ACK bits is transmitted.


Example 8 may include the method of examples 1-3 or some other example herein, wherein CG-UCI and HARQ-ACK feedback may be encoded together or separately based on the HARQ-ACK feedback. For instance:

    • If HARQ-ACK<=2 bits, CG-UCI and HARQ-ACK are encoded separately
    • If HARQ-ACK>2 bits, CG-UCI and HARQ-ACK are jointly encoded


Example 9 may include the method of example 1 or some other example herein, wherein if CG-PUSCH overlaps with PUCCH within a PUCCH group and if the timeline requirement as defined in Section 9.2.5 in TS38.213 is satisfied, either CG-UCI or the legacy UCIs carried within the PUCCH may be dropped according to a predefined order or priority rule, which indicates their specific priority compared to the others UCIs.


Example 10 may include the method of examples 1 and 9 or some other example herein, wherein the priority may be defined as follows, where the UCI are listed by providing first the one that has higher priority:


d. HARQ-ACK->SR->CG-UCI->CSI Part 1->CSI Part 2


If HARQ-ACK and/or SR are carried within the PUCCH, then CG PUSCH is dropped. Otherwise, PUCCH is instead dropped.


e. CG-UCI->HARQ-ACK->SR->CSI Part 1->CSI Part 2


High priority is always provided to the CG PUSCH, and when PUCCH overlaps with CG PUSCH, the PUCCH is always dropped.


f. HARQ-ACK->SR->CSI Part 1->CSI Part 2->CG-UCI


High priority is always provided to the PUCCH, and when CG-PUSCH overlaps with PUCCH this is always dropped.


Example 11 may include the method of examples 1 and 9-10 or some other example herein, wherein if CG-PUSCH overlaps with PUCCH within a PUCCH group and if the timeline requirement as defined in Section 9.2.5 in TS38.213 is satisfied, UE only transmits one of the CG-PUSCH and PUCCH, and drops another channel. In particular, UE first performs UCI multiplexing on PUCCH in accordance with the procedure as defined in Section 9.2.5 in TS38.213. When the resulting PUCCH resource(s) overlaps with CG-PUSCH, if the timeline requirement as defined in Section 9.2.5 in TS38.213 is satisfied, and if one of UCI types in PUCCH(s) has higher priority than CG-UCI, CG-PUSCH is dropped and PUCCH(s) is transmitted. If any of the UCI types in PUCCH(s) has lower priority than CG-UCI, CG-PUSCH is transmitted and PUCCH(s) is dropped. The priority rule can be defined as mentioned above.


Example 12 may include the method of examples 1 and 9-10 or some other example herein, wherein UE may transmit the CG-PUSCH or PUCCH with earliest starting symbol and drops the other channel. If both channels have the same starting symbol, UE can drop the channel with shorter or longer duration.


Example 13 may include the method of example 1 or some other example herein, the existing UCI will be multiplexed together with the CG-UCI within the CG-PUSCH if the resources are sufficient, otherwise either CG-PUSCH or PUCCH is dropped.


Example 14 may include the method of examples 1 and 13 or some other example herein, wherein if the CG-PUSCH has sufficient resources to accommodate multiplexing then the mapping order for the UCIs may be done as follows: CG-UCI is mapped first, and followed by HARQ-ACK, CSI part 1 and CSI part 2, and then finally data.


Example 15 may include the method of examples 1 and 13-14 or some other example herein, wherein in order to avoid blind detection or extra computing at the gNB, the CG-UCI may contain one or two bits indicating whether HARQ-ACK and/or CSI are multiplexed: if one bit is used, this might indicated whether multiplexing is performed or not; if two bits are provided, these will indicate whether multiplexing is not performed (e.g. ‘00’), but also specifically whether HARQ-ACK feedback (e.g., ‘01’) or CSI (e.g., ‘10’) or both (e.g., ‘11’) are also multiplexed.


Example 16 may include the method of examples 1 and 13-15 or some other example herein, wherein CG-UCI and HARQ-ACK feedback are always encoded together.


Example 17 may include the method of examples 1 and 13-16 or some other example herein, wherein if the PUCCH and CG-PUSCH overlap, and the resources available within the CG-PUSCH are not sufficient to carry CG-UCI with the UCI carried on PUCCH, then either CG-UCI or the legacy UCIs carried within the PUCCH may be dropped according to a predefined list, which indicates their specific priority compared to the others UCIs.


Example 18 may include the method of examples 1 and 13-17 or some other example herein, wherein the priority may be defined as follows, where the UCI are listed by providing first the one that have higher priority:


4. HARQ-ACK->CG-UCI->CSI Part 1->CSI Part 2


If HARQ-ACK is carried within the PUCCH, then CG PUSCH is dropped. Otherwise, PUCCH is instead dropped.


5. CG-UCI->HARQ-ACK-->CSI Part 1->CSI Part 2


High priority is always provided to the CG PUSCH, and when PUCCH overlaps with CG PUSCH this is always dropped.


6. HARQ-ACK->CSI Part 1->CSI Part 2->CG-UCI


High priority is always provided to the PUCCH, and when CG-PUSCH overlaps with PUCCH this is always dropped.


Example 19 may include the method of example 1 or some other example herein, wherein if CG-PUSCH overlaps with PUCCH within a PUCCH group, and if the timeline requirement as defined in Section 9.2.5 in TS 38.213 is satisfied, based on the resources available the UE may multiplex only some of the uplink information on CG-PUSCH based on one of the following priority lists:

    • HARQ-ACK->CG-UCI->CSI part 1->CSI part 2->data
    • CG-UCI->HARQ-ACK->CSI part 1->CSI part 2->data
    • HARQ-ACK->CSI part 1->CSI part 2->CG-UCI->data


In this case, the UE must perform encoding so that to guarantee that all REs are used.


Example 20 may include the method of examples 1 or 19 or some other example herein, wherein if data is dropped CG-UCI is also dropped.


Example 21 may include the method of example 1 or some other example herein, wherein the gNB may configure through higher layer signaling or indicated within the DCI whether option 1 or option 2 is used.


Example 22 may include the method of examples 1-21 or some other example herein, wherein different encoding mechanisms are provided for CG-UCI, HARQ-ACK, and CSI, each related to the above examples.


Example 23 may include a method comprising: determining a CG-PUSCH transmission is to overlap with transmission of grant-based UL control information; and determining whether to transmit the CG-PUSCH transmission based on a set of predetermined rules.


Example 24 may include the method of Example 23 or some other example, wherein the predetermined rules include: CG-UCI is not to be transmitted for mini-slots within CG burst for which the minislot time allocation spans across slot boundaries.


Example 25 may include the method of Example 23 or some other example, wherein a CG-UCI includes an indication of SLIV (for example, an S and L parameter) for each mini-slot within which the CG-UCI is transmitted, or an indication of a repetition number.


Example 26 may include the method of Example 23 or some other example, wherein the predetermined rules include: if UE is configured with mini-slot PUSCH allocated to span across the slot boundary, only a portion of the mini-slot that fits within the first slot is transmitted, and a portion of the mini-slot in the second slot is punctured.


Example 27 may include the method of Example 23 or some other example, wherein the predetermined rules include: if UE is configured with a PUSCH allocated to span across the slot boundary, the PUSCH is broken up into two repetitions, such that a first repetition is mapped to an end of a first slot, and a second repetition is mapped to a beginning of the second slot, and the combined length of the two repetitions equals L.


Example 28 may include the method of example 27, wherein LBT is to be performed only for the first repetition.


Example 29 may include the method of example 23-28 or some other example herein, wherein the UCI includes one or more of HARQ-ACK, SR, or CSI.


Example 30 may include the method of example 23-29 or some other example herein, wherein the method is performed by a UE or a portion thereof.


Example 31 may include a method comprising: determining that a CG-PUSCH transmission scheduled for a UE is to overlap with a transmission of grant-based UL control information of the UE; and determining whether the CG-PUSCH transmission will be transmitted based on a set of predetermined rules.


Example 32 may include the method of Example 31 or some other example, wherein the predetermined rules include: CG-UCI is not to be transmitted for mini-slots within CG burst for which the minislot time allocation spans across slot boundaries.


Example 33 may include the method of Example 31-32 or some other example, wherein a CG-UCI includes an indication of SLIV (for example, an S and L parameter) for each mini-slot within which the CG-UCI is transmitted, or an indication of a repetition number.


Example 34 may include the method of Example 31-33 or some other example, wherein the predetermined rules include: if UE is configured with mini-slot PUSCH allocated to span across the slot boundary, only a portion of the mini-slot that fits within the first slot is transmitted, and a portion of the mini-slot in the second slot is punctured.


Example 35 may include the method of Example 31-34 or some other example, wherein the predetermined rules include: if UE is configured with a PUSCH allocated to span across the slot boundary, the PUSCH is broken up into two repetitions, such that a first repetition is mapped to an end of a first slot, and a second repetition is mapped to a beginning of the second slot, and the combined length of the two repetitions equals L.


Example 36 may include the method of example 35, wherein LBT is to be performed only for the first repetition.


Example 37 may include the method of example 31-36 or some other example herein, wherein the UCI includes one or more of HARQ-ACK, SR, or CSI.


Example 38 may include the method of example 31-37 or some other example herein, wherein the method is performed by a gNB or a portion thereof.


Example 39 may include an apparatus comprising means to perform one or more elements of a method described in or related to any of examples 1-38, or any other method or process described herein.


Example 40 may include one or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of a method described in or related to any of examples 1-38, or any other method or process described herein.


Example 41 may include an apparatus comprising logic, modules, or circuitry to perform one or more elements of a method described in or related to any of examples 1-38, or any other method or process described herein.


Example 42 may include a method, technique, or process as described in or related to any of examples 1-38, or portions or parts thereof.


Example 43 may include an apparatus comprising: one or more processors and one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform the method, techniques, or process as described in or related to any of examples 1-38, or portions thereof.


Example 44 may include a signal as described in or related to any of examples 1-38, or portions or parts thereof.


Example 45 may include a datagram, packet, frame, segment, protocol data unit (PDU), or message as described in or related to any of examples 1-38, or portions or parts thereof, or otherwise described in the present disclosure.


Example 46 may include a signal encoded with data as described in or related to any of examples 1-38, or portions or parts thereof, or otherwise described in the present disclosure.


Example 47 may include a signal encoded with a datagram, packet, frame, segment, protocol data unit (PDU), or message as described in or related to any of examples 1-38, or portions or parts thereof, or otherwise described in the present disclosure.


Example 48 may include an electromagnetic signal carrying computer-readable instructions, wherein execution of the computer-readable instructions by one or more processors is to cause the one or more processors to perform the method, techniques, or process as described in or related to any of examples 1-38, or portions thereof.


Example 49 may include a computer program comprising instructions, wherein execution of the program by a processing element is to cause the processing element to carry out the method, techniques, or process as described in or related to any of examples 1-38, or portions thereof.


Example 50 may include a signal in a wireless network as shown and described herein.


Example 51 may include a method of communicating in a wireless network as shown and described herein.


Example 52 may include a system for providing wireless communication as shown and described herein.


Example 53 may include a device for providing wireless communication as shown and described herein.


Any of the above-described examples may be combined with any other example (or combination of examples), unless explicitly stated otherwise. The foregoing description of one or more implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of embodiments to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of various embodiments.


Abbreviations

For the purposes of the present document, the following abbreviations may apply to the examples and embodiments discussed herein.


3GPP Third Generation Partnership Project
4G Fourth Generation
5G Fifth Generation

5GC 5G Core network


ACK Acknowledgement
AF Application Function
AM Acknowledged Mode
AMBR Aggregate Maximum Bit Rate
AMF Access and Mobility Management Function
AN Access Network
ANR Automatic Neighbour Relation
AP Application Protocol, Antenna Port, Access Point
API Application Programming Interface
APN Access Point Name
ARP Allocation and Retention Priority
ARQ Automatic Repeat Request
AS Access Stratum
ASN.1 Abstract Syntax Notation One
AUSF Authentication Server Function
AWGN Additive White Gaussian Noise
BCH Broadcast Channel
BER Bit Error Ratio
BFD Beam Failure Detection
BLER Block Error Rate
BPSK Binary Phase Shift Keying
BRAS Broadband Remote Access Server
BSS Business Support System
BS Base Station
BSR Buffer Status Report
BW Bandwidth
BWP Bandwidth Part
C-RNTI Cell Radio Network Temporary Identity
CA Carrier Aggregation, Certification Authority
CAPEX CAPital EXpenditure
CBRA Contention Based Random Access
CC Component Carrier, Country Code, Cryptographic Checksum
CCA Clear Channel Assessment
CCE Control Channel Element
CCCH Common Control Channel
CE Coverage Enhancement
CDM Content Delivery Network
CDMA Code-Division Multiple Access
CFRA Contention Free Random Access
CG Cell Group
CI Cell Identity

CID Cell-ID (e.g., positioning method)


CIM Common Information Model
CIR Carrier to Interference Ratio
CK Cipher Key
CM Connection Management, Conditional Mandatory
CMAS Commercial Mobile Alert Service
CMD Command
CMS Cloud Management System
CO Conditional Optional
CoMP Coordinated Multi-Point
CORESET Control Resource Set
COTS Commercial Off-The-Shelf
CP Control Plane, Cyclic Prefix, Connection Point
CPD Connection Point Descriptor
CPE Customer Premise Equipment
CPICH Common Pilot Channel
CQI Channel Quality Indicator

CPU CSI processing unit, Central Processing Unit


C/R Command/Response field bit


CRAN Cloud Radio Access Network, Cloud RAN
CRB Common Resource Block
CRC Cyclic Redundancy Check
CRI Channel-State Information Resource Indicator, CSI-RS Resource Indicator
C-RNTI Cell RNTI
CS Circuit Switched
CSAR Cloud Service Archive
CSI Channel-State Information
CSI-IM CSI Interference Measurement
CSI-RS CSI Reference Signal

CSI-RSRP CSI reference signal received power


CSI-RSRQ CSI reference signal received quality


CSI-SINR CSI signal-to-noise and interference ratio


CSMA Carrier Sense Multiple Access

CSMA/CA CSMA with collision avoidance


CSS Common Search Space, Cell-specific Search Space
CTS Clear-to-Send
CW Codeword
CWS Contention Window Size
D2D Device-to-Device
DC Dual Connectivity, Direct Current
DCI Downlink Control Information
DF Deployment Flavour
DL Downlink
DMTF Distributed Management Task Force
DPDK Data Plane Development Kit
DM-RS, DMRS Demodulation Reference Signal

DN Data network


DRB Data Radio Bearer
DRS Discovery Reference Signal
DRX Discontinuous Reception

DSL Domain Specific Language. Digital Subscriber Line


DSLAM DSL Access Multiplexer
DwPTS Downlink Pilot Time Slot
E-LAN Ethernet Local Area Network
E2E End-to-End

ECCA extended clear channel assessment, extended CCA


ECCE Enhanced Control Channel Element, Enhanced CCE
ED Energy Detection
EDGE Enhanced Datarates for GSM Evolution (GSM Evolution)
EGMF Exposure Governance Management Function
EGPRS Enhanced GPRS
EIR Equipment Identity Register

eLAA enhanced Licensed Assisted Access, enhanced LAA


EM Element Manager

eMBB Enhanced Mobile Broadband


EMS Element Management System

eNB evolved NodeB, E-UTRAN Node B


EN-DC E-UTRA-NR Dual Connectivity
EPC Evolved Packet Core

EPDCCH enhanced PDCCH, enhanced Physical Downlink Control Cannel


EPRE Energy per resource element


EPS Evolved Packet System

EREG enhanced REG, enhanced resource element groups


ETSI European Telecommunications Standards Institute
ETWS Earthquake and Tsunami Warning System

eUICC embedded UICC, embedded Universal Integrated Circuit Card


E-UTRA Evolved UTRA
E-UTRAN Evolved UTRAN
EV2X Enhanced V2X
F1AP F1 Application Protocol

F1-C F1 Control plane interface


F1-U F1 User plane interface


FACCH Fast Associated Control CHannel

FACCH/F Fast Associated Control Channel/Full rate


FACCH/H Fast Associated Control Channel/Half rate


FACH Forward Access Channel
FAUSCH Fast Uplink Signalling Channel
FB Functional Block
FBI Feedback Information
FCC Federal Communications Commission
FCCH Frequency Correction CHannel
FDD Frequency Division Duplex
FDM Frequency Division Multiplex
FDMA Frequency Division Multiple Access
FE Front End
FEC Forward Error Correction
FFS For Further Study
FFT Fast Fourier Transformation

feLAA further enhanced Licensed Assisted Access, further enhanced LAA


FN Frame Number
FPGA Field-Programmable Gate Array
FR Frequency Range
G-RNTI GERAN Radio Network Temporary Identity
GERAN GSM EDGE RAN, GSM EDGE Radio Access Network
GGSN Gateway GPRS Support Node
GLONASS GLObal'naya NAvigatsionnaya Sputnikovaya Sistema (Engl.: Global Navigation Satellite System)
gNB Next Generation NodeB

gNB-CU gNB-centralized unit, Next Generation NodeB centralized unit


gNB-DU gNB-distributed unit, Next Generation NodeB distributed unit


GNSS Global Navigation Satellite System
GPRS General Packet Radio Service
GSM Global System for Mobile Communications, Groupe Special Mobile
GTP GPRS Tunneling Protocol
GTP-U GPRS Tunnelling Protocol for User Plane

GTS Go To Sleep Signal (related to WUS)


GUMMEI Globally Unique MME Identifier
GUTI Globally Unique Temporary UE Identity
HARQ Hybrid ARQ, Hybrid Automatic Repeat Request
HANDO, HO Handover
HFN HyperFrame Number
HHO Hard Handover
HLR Home Location Register
HN Home Network
HO Handover
HPLMN Home Public Land Mobile Network
HSDPA High Speed Downlink Packet Access
HSN Hopping Sequence Number
HSPA High Speed Packet Access
HSS Home Subscriber Server
HSUPA High Speed Uplink Packet Access
HTTP Hyper Text Transfer Protocol

HTTPS Hyper Text Transfer Protocol Secure (https is http/1.1 over SSL, e.g. port 443)


I-Block Information Block
ICCID Integrated Circuit Card Identification
ICIC Inter-Cell Interference Coordination

ID Identity, identifier


IDFT Inverse Discrete Fourier Transform

IE Information element


IBE In-Band Emission
IEEE Institute of Electrical and Electronics Engineers
IEI Information Element Identifier
IEIDL Information Element Identifier Data Length
IETF Internet Engineering Task Force
IF Infrastructure
IM Interference Measurement, Intermodulation, IP Multimedia
IMC IMS Credentials
IMEI International Mobile Equipment Identity

IMGI International mobile group identity


IMPI IP Multimedia Private Identity

IMPU IP Multimedia PUblic identity


IMS IP Multimedia Subsystem
IMSI International Mobile Subscriber Identity
IoT Internet of Things
IP Internet Protocol
Ipsec IP Security, Internet Protocol Security
IP-CAN IP-Connectivity Access Network
IP-M IP Multicast
IPv4 Internet Protocol Version 4
IPv6 Internet Protocol Version 6
IR Infrared
IS In Sync
IRP Integration Reference Point
ISDN Integrated Services Digital Network
ISIM IM Services Identity Module
ISO International Organisation for Standardisation
ISP Internet Service Provider
IWF Interworking-Function
I-WLAN Interworking WLAN

K Constraint length of the convolutional code, USIM Individual key


kB Kilobyte (1000 bytes)


kbps kilo-bits per second


Kc Ciphering key

Ki Individual subscriber authentication key


KPI Key Performance Indicator
KQI Key Quality Indicator
KSI Key Set Identifier

ksps kilo-symbols per second


KVM Kernel Virtual Machine

L1 Layer 1 (physical layer)


L1-RSRP Layer 1 reference signal received power


L2 Layer 2 (data link layer)


L3 Layer 3 (network layer)


LAA Licensed Assisted Access
LAN Local Area Network
LBT Listen Before Talk
LCM LifeCycle Management
LCR Low Chip Rate
LCS Location Services
LCID Logical Channel ID
LI Layer Indicator
LLC Logical Link Control, Low Layer Compatibility
LPLMN Local PLMN
LPP LTE Positioning Protocol
LSB Least Significant Bit
LTE Long Term Evolution

LWA LTE-WLAN aggregation


LWIP LTE/WLAN Radio Level Integration with IPsec Tunnel


LTE Long Term Evolution
M2M Machine-to-Machine

MAC Medium Access Control (protocol layering context)


MAC Message authentication code (security/encryption context)


MAC-A MAC used for authentication and key agreement (TSG T WG3 context)


MAC-I MAC used for data integrity of signalling messages (TSG T WG3 context)


MANO Management and Orchestration
MBMS Multimedia Broadcast and Multicast Service

MB SFN Multimedia Broadcast multicast service Single Frequency Network


MCC Mobile Country Code
MCG Master Cell Group
MCOT Maximum Channel Occupancy Time

MCS Modulation and coding scheme


MDAF Management Data Analytics Function
MDAS Management Data Analytics Service
MDT Minimization of Drive Tests
ME Mobile Equipment

MeNB master eNB


MER Message Error Ratio
MGL Measurement Gap Length
MGRP Measurement Gap Repetition Period
MIB Master Information Block, Management Information Base
MIMO Multiple Input Multiple Output
MLC Mobile Location Centre
MM Mobility Management
MME Mobility Management Entity
MN Master Node
MO Measurement Object, Mobile Originated
MPBCH MTC Physical Broadcast CHannel
MPDCCH MTC Physical Downlink Control CHannel
MPDSCH MTC Physical Downlink Shared CHannel
MPRACH MTC Physical Random Access CHannel
MPUSCH MTC Physical Uplink Shared Channel
MPLS MultiProtocol Label Switching
MS Mobile Station
MSB Most Significant Bit
MSC Mobile Switching Centre
MSI Minimum System Information, MCH Scheduling Information
MSID Mobile Station Identifier
MSIN Mobile Station Identification Number
MSISDN Mobile Subscriber ISDN Number
MT Mobile Terminated, Mobile Termination
MTC Machine-Type Communications

mMTC massive MTC, massive Machine-Type Communications


MU-MIMO Multi User MIMO

MWUS MTC wake-up signal, MTC WUS


NACK Negative Acknowledgement
NAI Network Access Identifier

NAS Non-Access Stratum, Non-Access Stratum layer


NCT Network Connectivity Topology
NEC Network Capability Exposure
NE-DC NR-E-UTRA Dual Connectivity
NEF Network Exposure Function
NF Network Function
NFP Network Forwarding Path
NFPD Network Forwarding Path Descriptor
NFV Network Functions Virtualization
NFVI NFV Infrastructure
NFVO NFV Orchestrator
NG Next Generation, Next Gen
NGEN-DC NG-RAN E-UTRA-NR Dual Connectivity
NM Network Manager
NMS Network Management System
N-PoP Network Point of Presence
NMIB, N-MIB Narrowband MIB
NPBCH Narrowband Physical Broadcast CHannel
NPDCCH Narrowband Physical Downlink Control CHannel
NPDSCH Narrowband Physical Downlink Shared CHannel
NPRACH Narrowband Physical Random Access CHannel
NPUSCH Narrowband Physical Uplink Shared CHannel
NPSS Narrowband Primary Synchronization Signal
NSSS Narrowband Secondary Synchronization Signal
NR New Radio, Neighbour Relation
NRF NF Repository Function
NRS Narrowband Reference Signal
NS Network Service

NSA Non-Standalone operation mode


NSD Network Service Descriptor
NSR Network Service Record
NSSAI ‘Network Slice Selection Assistance Information
S-NNSAI Single-NSSAI
NSSF Network Slice Selection Function
NW Network

NWUS Narrowband wake-up signal, Narrowband WUS


NZP Non-Zero Power
O&M Operation and Maintenance

ODU2 Optical channel Data Unit—type 2


OFDM Orthogonal Frequency Division Multiplexing
OFDMA Orthogonal Frequency Division Multiple Access

OOB Out-of-band


OOS Out of Sync
OPEX OPerating EXpense
OSI Other System Information
OSS Operations Support System

OTA over-the-air


PAPR Peak-to-Average Power Ratio
PAR Peak to Average Ratio
PBCH Physical Broadcast Channel
PC Power Control, Personal Computer
PCC Primary Component Carrier, Primary CC
PCell Primary Cell
PCI Physical Cell ID, Physical Cell Identity
PCEF Policy and Charging Enforcement Function
PCF Policy Control Function
PCRF Policy Control and Charging Rules Function

PDCP Packet Data Convergence Protocol, Packet Data Convergence Protocol layer


PDCCH Physical Downlink Control Channel
PDCP Packet Data Convergence Protocol
PDN Packet Data Network, Public Data Network
PDSCH Physical Downlink Shared Channel
PDU Protocol Data Unit
PEI Permanent Equipment Identifiers
PFD Packet Flow Description
P-GW PDN Gateway

PHICH Physical hybrid-ARQ indicator channel


PHY Physical layer


PLMN Public Land Mobile Network
PIN Personal Identification Number
PM Performance Measurement
PMI Precoding Matrix Indicator
PNF Physical Network Function
PNFD Physical Network Function Descriptor
PNFR Physical Network Function Record

POC PTT over Cellular


PP, PTP Point-to-Point
PPP Point-to-Point Protocol
PRACH Physical RACH

PRB Physical resource block


PRG Physical resource block group


ProSe Proximity Services, Proximity-Based Service
PRS Positioning Reference Signal
PRR Packet Reception Radio
PS Packet Services
PSBCH Physical Sidelink Broadcast Channel
PSDCH Physical Sidelink Downlink Channel
PSCCH Physical Sidelink Control Channel
PSSCH Physical Sidelink Shared Channel
PSCell Primary SCell
PSS Primary Synchronization Signal
PSTN Public Switched Telephone Network

PT-RS Phase-tracking reference signal


PTT Push-to-Talk
PUCCH Physical Uplink Control Channel
PUSCH Physical Uplink Shared Channel
QAM Quadrature Amplitude Modulation

QCI QoS class of identifier


QCL Quasi co-location


QFI QoS Flow ID, QoS Flow Identifier
QoS Quality of Service
QPSK Quadrature (Quaternary) Phase Shift Keying
QZSS Quasi-Zenith Satellite System
RA-RNTI Random Access RNTI
RAB Radio Access Bearer, Random Access Burst
RACH Random Access Channel
RADIUS Remote Authentication Dial In User Service
RAN Radio Access Network

RAND RANDom number (used for authentication)


RAR Random Access Response
RAT Radio Access Technology
RAU Routing Area Update

RB Resource block, Radio Bearer


RBG Resource block group


REG Resource Element Group
Rel Release
REQ REQuest
RF Radio Frequency
RI Rank Indicator

RIV Resource indicator value


RL Radio Link

RLC Radio Link Control, Radio Link Control layer


RLC AM RLC Acknowledged Mode
RLC UM RLC Unacknowledged Mode
RLF Radio Link Failure
RLM Radio Link Monitoring
RLM-RS Reference Signal for RLM
RM Registration Management
RMC Reference Measurement Channel
RMSI Remaining MSI, Remaining Minimum System Information
RN Relay Node
RNC Radio Network Controller
RNL Radio Network Layer
RNTI Radio Network Temporary Identifier
ROHC RObust Header Compression

RRC Radio Resource Control, Radio Resource Control layer


RRM Radio Resource Management
RS Reference Signal
RSRP Reference Signal Received Power
RSRQ Reference Signal Received Quality
RSSI Received Signal Strength Indicator
RSU Road Side Unit

RSTD Reference Signal Time difference


RTP Real Time Protocol
RTS Ready-To-Send
RTT Round Trip Time
Rx Reception, Receiving, Receiver
S1AP S1 Application Protocol

S1-MME S1 for the control plane


S1-U S1 for the user plane


S-GW Serving Gateway
S-RNTI SRNC Radio Network Temporary Identity
S-TMSI SAE Temporary Mobile Station Identifier

SA Standalone operation mode


SAE System Architecture Evolution
SAP Service Access Point
SAPD Service Access Point Descriptor
SAPI Service Access Point Identifier
SCC Secondary Component Carrier, Secondary CC
SCell Secondary Cell
SC-FDMA Single Carrier Frequency Division Multiple Access
SCG Secondary Cell Group
SCM Security Context Management
SCS Subcarrier Spacing
SCTP Stream Control Transmission Protocol

SDAP Service Data Adaptation Protocol, Service Data Adaptation Protocol layer


SDL Supplementary Downlink
SDNF Structured Data Storage Network Function
SDP Session Description Protocol
SDSF Structured Data Storage Function
SDU Service Data Unit
SEAF Security Anchor Function

SeNB secondary eNB


SEPP Security Edge Protection Proxy

SFI Slot format indication


SFTD Space-Frequency Time Diversity, SFN and frame timing difference


SFN System Frame Number
SgNB Secondary gNB
SGSN Serving GPRS Support Node
S-GW Serving Gateway
SI System Information
SI-RNTI System Information RNTI
SIB System Information Block
SIM Subscriber Identity Module
SIP Session Initiated Protocol
SiP System in Package
SL Sidelink
SLA Service Level Agreement
SM Session Management
SMF Session Management Function
SMS Short Message Service
SMSF SMS Function
SMTC SSB-based Measurement Timing Configuration
SN Secondary Node, Sequence Number
SoC System on Chip
SON Self-Organizing Network
SpCell Special Cell
SP-CSI-RNTI Semi-Persistent CSI RNTI
SPS Semi-Persistent Scheduling

SQN Sequence number


SR Scheduling Request
SRB Signalling Radio Bearer
SRS Sounding Reference Signal
SS Synchronization Signal
SSB Synchronization Signal Block, SS/PBCH Block
SSBRI SS/PBCH Block Resource Indicator, Synchronization Signal Block Resource Indicator
SSC Session and Service Continuity

SS-RSRP Synchronization Signal based Reference Signal Received Power


SS-RSRQ Synchronization Signal based Reference Signal Received Quality


SS-SINR Synchronization Signal based Signal to Noise and Interference Ratio


SSS Secondary Synchronization Signal
SSSG Search Space Set Group
SSSIF Search Space Set Indicator
SST Slice/Service Types
SU-MIMO Single User MIMO
SUL Supplementary Uplink
TA Timing Advance, Tracking Area
TAC Tracking Area Code
TAG Timing Advance Group
TAU Tracking Area Update
TB Transport Block
TBS Transport Block Size
TBD To Be Defined
TCI Transmission Configuration Indicator
TCP Transmission Communication Protocol
TDD Time Division Duplex
TDM Time Division Multiplexing
TDMA Time Division Multiple Access
TE Terminal Equipment
TEID Tunnel End Point Identifier
TFT Traffic Flow Template
TMSI Temporary Mobile Subscriber Identity
TNL Transport Network Layer
TPC Transmit Power Control
TPMI Transmitted Precoding Matrix Indicator
TR Technical Report
TRP, TRxP Transmission Reception Point
TRS Tracking Reference Signal
TRx Transceiver
TS Technical Specifications, Technical Standard
TTI Transmission Time Interval
Tx Transmission, Transmitting, Transmitter
U-RNTI UTRAN Radio Network Temporary Identity
UART Universal Asynchronous Receiver and Transmitter
UCI Uplink Control Information
UE User Equipment
UDM Unified Data Management
UDP User Datagram Protocol
UDSF Unstructured Data Storage Network Function
UICC Universal Integrated Circuit Card
UL Uplink
UM Unacknowledged Mode
UML Unified Modelling Language
UMTS Universal Mobile Telecommunications System
UP User Plane
UPF User Plane Function
URI Uniform Resource Identifier
URL Uniform Resource Locator
URLLC Ultra-Reliable and Low Latency
USB Universal Serial Bus
USIM Universal Subscriber Identity Module

USS UE-specific search space


UTRA UMTS Terrestrial Radio Access
UTRAN Universal Terrestrial Radio Access Network
UwPTS Uplink Pilot Time Slot
V2I Vehicle-to-Infrastruction
V2P Vehicle-to-Pedestrian
V2V Vehicle-to-Vehicle

V2X Vehicle-to-everything


VIM Virtualized Infrastructure Manager
VL Virtual Link,
VLAN Virtual LAN, Virtual Local Area Network
VM Virtual Machine
VNF Virtualized Network Function
VNFFG VNF Forwarding Graph
VNFFGD VNF Forwarding Graph Descriptor
VNFM VNF Manager
VoIP Voice-over-IP, Voice-over-Internet Protocol
VPLMN Visited Public Land Mobile Network
VPN Virtual Private Network
VRB Virtual Resource Block
WiMAX Worldwide Interoperability for Microwave Access
WLAN Wireless Local Area Network
WMAN Wireless Metropolitan Area Network
WPAN Wireless Personal Area Network

X2-C X2-Control plane


X2-U X2-User plane


XML eXtensible Markup Language


XRES EXpected user RESponse


XOR eXclusive OR


ZC Zadoff-Chu
ZP Zero Power
Terminology

For the purposes of the present document, the following terms and definitions are applicable to the examples and embodiments discussed herein.


The term “circuitry” as used herein refers to, is part of, or includes hardware components such as an electronic circuit, a logic circuit, a processor (shared, dedicated, or group) and/or memory (shared, dedicated, or group), an Application Specific Integrated Circuit (ASIC), a field-programmable device (FPD) (e.g., a field-programmable gate array (FPGA), a programmable logic device (PLD), a complex PLD (CPLD), a high-capacity PLD (HCPLD), a structured ASIC, or a programmable SoC), digital signal processors (DSPs), etc., that are configured to provide the described functionality. In some embodiments, the circuitry may execute one or more software or firmware programs to provide at least some of the described functionality. The term “circuitry” may also refer to a combination of one or more hardware elements (or a combination of circuits used in an electrical or electronic system) with the program code used to carry out the functionality of that program code. In these embodiments, the combination of hardware elements and program code may be referred to as a particular type of circuitry.


The term “processor circuitry” as used herein refers to, is part of, or includes circuitry capable of sequentially and automatically carrying out a sequence of arithmetic or logical operations, or recording, storing, and/or transferring digital data. The term “processor circuitry” may refer to one or more application processors, one or more baseband processors, a physical central processing unit (CPU), a single-core processor, a dual-core processor, a triple-core processor, a quad-core processor, and/or any other device capable of executing or otherwise operating computer-executable instructions, such as program code, software modules, and/or functional processes. The terms “application circuitry” and/or “baseband circuitry” may be considered synonymous to, and may be referred to as, “processor circuitry.”


The term “interface circuitry” as used herein refers to, is part of, or includes circuitry that enables the exchange of information between two or more components or devices. The term “interface circuitry” may refer to one or more hardware interfaces, for example, buses, I/O interfaces, peripheral component interfaces, network interface cards, and/or the like.


The term “user equipment” or “UE” as used herein refers to a device with radio communication capabilities and may describe a remote user of network resources in a communications network. The term “user equipment” or “UE” may be considered synonymous to, and may be referred to as, client, mobile, mobile device, mobile terminal, user terminal, mobile unit, mobile station, mobile user, subscriber, user, remote station, access agent, user agent, receiver, radio equipment, reconfigurable radio equipment, reconfigurable mobile device, etc. Furthermore, the term “user equipment” or “UE” may include any type of wireless/wired device or any computing device including a wireless communications interface.


The term “network element” as used herein refers to physical or virtualized equipment and/or infrastructure used to provide wired or wireless communication network services. The term “network element” may be considered synonymous to and/or referred to as a networked computer, networking hardware, network equipment, network node, router, switch, hub, bridge, radio network controller, RAN device, RAN node, gateway, server, virtualized VNF, NFVI, and/or the like.


The term “computer system” as used herein refers to any type interconnected electronic devices, computer devices, or components thereof. Additionally, the term “computer system” and/or “system” may refer to various components of a computer that are communicatively coupled with one another. Furthermore, the term “computer system” and/or “system” may refer to multiple computer devices and/or multiple computing systems that are communicatively coupled with one another and configured to share computing and/or networking resources.


The term “appliance,” “computer appliance,” or the like, as used herein refers to a computer device or computer system with program code (e.g., software or firmware) that is specifically designed to provide a specific computing resource. A “virtual appliance” is a virtual machine image to be implemented by a hypervisor-equipped device that virtualizes or emulates a computer appliance or otherwise is dedicated to provide a specific computing resource.


The term “resource” as used herein refers to a physical or virtual device, a physical or virtual component within a computing environment, and/or a physical or virtual component within a particular device, such as computer devices, mechanical devices, memory space, processor/CPU time, processor/CPU usage, processor and accelerator loads, hardware time or usage, electrical power, input/output operations, ports or network sockets, channel/link allocation, throughput, memory usage, storage, network, database and applications, workload units, and/or the like. A “hardware resource” may refer to compute, storage, and/or network resources provided by physical hardware element(s). A “virtualized resource” may refer to compute, storage, and/or network resources provided by virtualization infrastructure to an application, device, system, etc. The term “network resource” or “communication resource” may refer to resources that are accessible by computer devices/systems via a communications network. The term “system resources” may refer to any kind of shared entities to provide services, and may include computing and/or network resources. System resources may be considered as a set of coherent functions, network data objects or services, accessible through a server where such system resources reside on a single host or multiple hosts and are clearly identifiable.


The term “channel” as used herein refers to any transmission medium, either tangible or intangible, which is used to communicate data or a data stream. The term “channel” may be synonymous with and/or equivalent to “communications channel,” “data communications channel,” “transmission channel,” “data transmission channel,” “access channel,” “data access channel,” “link,” “data link,” “carrier,” “radiofrequency carrier,” and/or any other like term denoting a pathway or medium through which data is communicated. Additionally, the term “link” as used herein refers to a connection between two devices through a RAT for the purpose of transmitting and receiving information.


The terms “instantiate,” “instantiation,” and the like as used herein refers to the creation of an instance. An “instance” also refers to a concrete occurrence of an object, which may occur, for example, during execution of program code.


The terms “coupled,” “communicatively coupled,” along with derivatives thereof are used herein. The term “coupled” may mean two or more elements are in direct physical or electrical contact with one another, may mean that two or more elements indirectly contact each other but still cooperate or interact with each other, and/or may mean that one or more other elements are coupled or connected between the elements that are said to be coupled with each other. The term “directly coupled” may mean that two or more elements are in direct contact with one another. The term “communicatively coupled” may mean that two or more elements may be in contact with one another by a means of communication including through a wire or other interconnect connection, through a wireless communication channel or ink, and/or the like.


The term “information element” refers to a structural element containing one or more fields. The term “field” refers to individual contents of an information element, or a data element that contains content.


The term “SMTC” refers to an SSB-based measurement timing configuration configured by SSB-MeasurementTimingConfiguration.


The term “SSB” refers to an SS/PBCH block.


The term “a “Primary Cell” refers to the MCG cell, operating on the primary frequency, in which the UE either performs the initial connection establishment procedure or initiates the connection re-establishment procedure.


The term “Primary SCG Cell” refers to the SCG cell in which the UE performs random access when performing the Reconfiguration with Sync procedure for DC operation.


The term “Secondary Cell” refers to a cell providing additional radio resources on top of a Special Cell for a UE configured with CA.


The term “Secondary Cell Group” refers to the subset of serving cells comprising the PSCell and zero or more secondary cells for a UE configured with DC.


The term “Serving Cell” refers to the primary cell for a UE in RRC_CONNECTED not configured with CA/DC there is only one serving cell comprising of the primary cell.


The term “serving cell” or “serving cells” refers to the set of cells comprising the Special Cell(s) and all secondary cells for a UE in RRC_CONNECTED configured with CA/.


The term “Special Cell” refers to the PCell of the MCG or the PSCell of the SCG for DC operation; otherwise, the term “Special Cell” refers to the Pcell.

Claims
  • 1. One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors cause a user equipment (UE) to: determine a configured grant (CG)-physical uplink shared channel (PUSCH) transmission is to overlap with transmission of grant-based uplink UL control information (CG-UCI); anddetermine whether to transmit the CG-PUSCH transmission based on a set of predetermined rules.
  • 2. The one or more NTCRM of claim 1, wherein the predetermined rules include: CG-UCI is not to be transmitted for mini-slots within CG bursts for which a mini-slot time allocation spans across slot boundaries.
  • 3. The one or more NTCRM of claim 1, wherein the CG-UCI includes: an indication of a start and length indicator value (SLIV) for individual mini-slots within which the CG-UCI is transmitted; and/oran indication of a repetition number.
  • 4. The one or more NTCRM of claim 1, wherein the predetermined rules include: if the UE is configured with a mini-slot for a PUSCH allocated to span across a slot boundary, then only a portion of the mini-slot that fits within a first slot is transmitted, and a portion of the mini-slot in a second slot is punctured.
  • 5. The one or more NTCRM of claim 1, wherein the predetermined rules include: if UE is configured with a PUSCH allocated to span across the slot boundary, the PUSCH is broken up into two repetitions, such that a first repetition is mapped to an end of a first slot, and a second repetition is mapped to a beginning of the second slot, and the combined length of the two repetitions equals a value L.
  • 6. The one or more NTCRM of claim 5, wherein the instructions, when executed, are further to cause the UE to perform a listen before talk (LBT) procedure for the first repetition and not for the second repetition.
  • 7. The one or more NTCRM of claim 1, wherein the UCI includes one or more of hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback, a scheduling request (SR), or channel state information (CSI).
CROSS REFERENCE TO RELATED APPLICATION

The present application claims priority to U.S. Provisional Patent Application No. 62/902,691, titled “DESIGN OF MULTIPLEXING RULES FOR CONFIGURED GRANT TRANSMISSIONS IN NR SYSTEMS OPERATING ON UNLICENSED SPECTRUM,” which was filed Sep. 19, 2019, the disclosure of which is hereby incorporated by reference.

Provisional Applications (1)
Number Date Country
62902691 Sep 2019 US