Patent Application
20220174683
In the 3rd Generation Partnership Project (3GPP) study item, RP-182090, Revised SID: Study on New Radio Industrial Internet of Things (NR-IoT), New Radio (NR) technology enhancements are studied with the target of providing more deterministic low-latency delivery of data. This traffic is also referred to as time sensitive networking (TSN) traffic with typically periodic packet occurrences per cycle time.
Uplink (UL) traffic can be scheduled with dynamic UL grants or configured UL grants. In case of dynamic grants, a network node such as, for example, a base station such as a NR base station (gNodeB) provides an UL grant to the UE for each UL transmission. By contrast, configured grants are pre-allocated such that the configured grants are provided once to the UE. Thereafter, the configured UL grant is valid for usage for UL transmissions according to a configured periodicity. The UE does not need to transmit padding on those UL resources if no UL data is available for transmission. Rather, the UE may skip an UL transmission on such grants.
A typical NR-IoT device would handle communication for multiple service types, which may include multiple periodic Ultra-Reliable Low-Latency Communication (URLLC) type robot control messages (also referred to as time-sensitive networking (TSN)-like traffic), URLLC type of occasional alarm signals (for which periodic resources would need to be configured or relying on UE to send scheduling request for each occasional alarm message), occasional sensor data transmission (can be time-critical or non-time-critical), and/or other Enhanced Mobile Broadband (eMBB) or Mobile Broadband (MBB) best-effort type traffic such as occasional video transmissions or software updates. It would lead to a traffic mix to be multiplexed by the UE for UL transmissions on multiple Medium Access Control (MAC) logical channels with different priorities. In such a traffic mix scenario, it is crucial to treat URLLC-type of traffic with high priority.
The 3GPP study from RP-182090 concluded among other things that it is deemed beneficial to support enhanced prioritization between different intra-UE traffic types and priorities and it is recommended to specify in a later work item phase: Specification of grant prioritization in MAC based on Logical Channel (LCH) priorities and Logical Channel Prioritization (LCP) restrictions for the cases where MAC prioritizes the grant.
However, there currently exist certain challenges. As discussed above, there are two type of grants, i.e., dynamic UL grants and configured UL grants, which can be allocated to either URLLC traffic or eMBB traffic. The eMBB and URLLC traffic can be periodic or a-periodic. This is further complicated by the need to support multiple periodic URLLC flows where each flow is served by one configured grant. In conclusion, there are many possibilities that the allocated dynamic and/or configured grants might overlap. Yet, there does not exist an overall framework to treat all these cases. Mere guidelines to focus on logical channel prioritization (LCP) restrictions when specifying those decisions as provided in 3GPP are not sufficient to address these challenges. As one example, it is unclear how the UE decides when employing LCP to select among multiple available grants. In particular, it is not clear how the UE decides whether or not to pre-empt an already ongoing transmission according to one of the grants by another grant.
Certain aspects of the present disclosure and their embodiments may provide solutions to these or other challenges. According to this disclosure, a wireless device such as a user equipment (UE) may make use of a logical channel prioritization (LCP) based decision for pre-emption of an existing transmission, including taking into account not only new data becoming available in logical channels but also data of logical channels already undergoing transmission. For example, when deciding which new data to multiplex by pre-empting an ongoing transmission (i.e., interrupting an ongoing transmission), the data associated with the pre-empted transmission is not discarded but may be re-considered by the wireless device after the pre-empting transmission is complete.
According to certain embodiments, a method performed by a wireless device includes receiving a first grant of resources from a network node. The first grant of resources is associated with first prioritization information. The wireless device constructs a Medium Access Control Protocol Data Unit (MAC PDU) based on the first grant. A second grant of resources that overlaps with the first grant of resources is received from the network node, and the second grant of resources is associated with second prioritization information. The wireless device determines whether to pre-empt transmission of the constructed MAC PDU based on comparing the first prioritization information and second prioritization information and pre-empts the transmission of the constructed MAC PDU if the second prioritization information indicates a higher priority than indicated by the first prioritization information.
According to certain embodiments, a wireless device includes processing circuitry configured to receive a first grant of resources from a network node. The first grant of resources is associated with first prioritization information. The processing circuitry is configured to construct a MAC PDU based on the first grant. A second grant of resources that overlaps with the first grant of resources is received from the network node, and the second grant of resources is associated with second prioritization information. The processing circuitry is configured to determine whether to pre-empt transmission of the constructed MAC PDU based on comparing the first prioritization information and second prioritization information and pre-empt the transmission of the constructed MAC PDU if the second prioritization information indicates a higher priority than indicated by the first prioritization information.
According to certain embodiments, a method performed by a network node includes transmitting a second grant of resources to a wireless device. The second grant of resources overlaps with a first grant of resources previously transmitted to the wireless device, and the second grant of resources is larger than the first grant of resources. The second grant of resources is associated with second prioritization information indicating a higher priority than a first prioritization information associated with the first grant of resources. The network node receives a transmission from the wireless device based on the second grant of resources, and the received transmission includes data allocated by the wireless device for transmission using the first grant of resources and new data allocated by the wireless device for transmission using the second grant of resources.
According to certain embodiments, a network node includes processing circuitry configured to transmit a second grant of resources to a wireless device. The second grant of resources overlaps with a first grant of resources previously transmitted to the wireless device, and the second grant of resources is larger than the first grant of resources. The second grant of resources is associated with second prioritization information indicating a higher priority than a first prioritization information associated with the first grant of resources. The processing circuitry is configured to receive a transmission from the wireless device based on the second grant of resources, and the received transmission includes data allocated by the wireless device for transmission using the first grant of resources and new data allocated by the wireless device for transmission using the second grant of resources.
Certain embodiments may provide one or more of the following technical advantages. For example, the UE may prevent wasting any given radio resources and instead utilizes allocated radio resources even when pre-empting an ongoing transmission in order to multiplex logical channel data according to their priority order correctly.
Other advantages may be readily apparent to one having skill in the art. Certain embodiments may have none, some, or all of the recited advantages.
For a more complete understanding of the disclosed embodiments and their features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which:
Some of the embodiments contemplated herein will now be described more fully with reference to the accompanying drawings. Other embodiments, however, are contained within the scope of the subject matter disclosed herein, the disclosed subject matter should not be construed as limited to only the embodiments set forth herein; rather, these embodiments are provided by way of example to convey the scope of the subject matter to those skilled in the art.
Generally, all terms used herein are to be interpreted according to their ordinary meaning in the relevant technical field, unless a different meaning is clearly given and/or is implied from the context in which it is used. All references to a/an/the element, apparatus, component, means, step, etc. are to be interpreted openly as referring to at least one instance of the element, apparatus, component, means, step, etc., unless explicitly stated otherwise. The steps of any methods disclosed herein do not have to be performed in the exact order disclosed, unless a step is explicitly described as following or preceding another step and/or where it is implicit that a step must follow or precede another step. Any feature of any of the embodiments disclosed herein may be applied to any other embodiment, wherever appropriate. Likewise, any advantage of any of the embodiments may apply to any other embodiments, and vice versa. Other objectives, features, and advantages of the enclosed embodiments will be apparent from the following description.
The present disclosure is described within the context of 3rd Generation Partnership Project (3GPP) 5th Generation (5G) New Radio (NR) radio technology as discussed in 3GPP TS 38.300 V15.2.0 (2018 June). It is understood that the problems and solutions described herein are equally applicable to wireless access networks and user-equipments (UEs) implementing other access technologies and standards. Additionally, New Radio (NR) is used as an example technology where the techniques and systems described herein are suitable, and using NR in the description therefore is particularly useful for understanding the problem and solutions solving the problem. However, the disclosure is applicable also to 3GPP Long-Term Evolution (LTE) or 3GPP LTE and NR integration, also denoted as non-standalone NR.
According to certain embodiments, a method may be provided for use in a UE Medium Access Control (MAC) entity for making a pre-emption decision such as, for example, when there are two or more overlapping grants. Further, a method for multiplexing data associated with a pre-empted transmission (e.g., multiplexing data associated with a transmission that has been targeted for pre-emption) into a pre-empting transmission may also be provided.
For example, a method in a wireless device may be provided in which the wireless device is able to determine whether to pre-empt a transmission associated with an earlier-received grant based on a later-received overlapping grant. In particular, the wireless device may determine to pre-empt a transmission after a Medium Access Control Protocol Data Unit (MAC PDU) is constructed based on the earlier-received grant and sent to the Physical Layer (PHY). This determination may be based on comparing prioritization information of the first grant and the second grant. In this manner, the grant with the highest priority may be used even if a MAC PDU is already constructed based on the earlier-received grant. In some embodiments, the pre-empting transmission may include multiplexed data meant for the pre-empted transmission associated with the earlier-received grant. Accordingly, the UE may reduce wasted resources and unnecessary padding.
The disclosure herein considers a scenario where multiple uplink (UL) grants with overlapping resources are available in the UE. The UL grants can be configured UL grants or dynamic UL grants in any combination. According to certain embodiments, two cases may be differentiated:
According to certain embodiments, in response to the UE receiving an UL grant where there is an overlap of resources with a previously received grant, the UE may select among the grants according to certain rules. For example, in a particular embodiment, if both grants are of type dynamic grant, the UE may always select the later grant as a rule and/or configuration. If, however, the grants are not both dynamic grants, the grant may be selected according to a grant selection procedure. For example, in a particular embodiment, the grant may be selected based on which type of resources the data of the logical channel with the highest priority is allowed to be transmitted on. For instance, it may involve considering logical channel transmission restrictions such as, for example, on grant type, duration, reliability, and other logical channel transmission restrictions.
The techniques described herein may apply to any scenario for any two overlapping UL grants (including dynamic versus dynamic, configured versus configured, and configured versus dynamic). Accordingly, the techniques discussed within may also consider the case of two overlapping dynamic grants.
According to a first set of example embodiments (based on scenario 1 discussed above in which the MAC PDU of the pre-empted transmission has not been built or can be re-built), the UE discards any ongoing MAC PDU building (or delays the start of MAC PDU building) related to the first grant (grant 1) after receiving the second overlapping grant (grant 2). Then, both grants (grants 1 and 2) are processed, assuming all available data can be multiplexed on it, and considering LCP restrictions such as the grant type, duration, and reliability. For example, the grant with a higher priority logical channel may have a higher priority, while the other grant is discarded. According to certain embodiments, if both grants have the same highest priority, the grant with the larger transport block (TB) size may be selected, while the other may be discarded.
According to a second set of example embodiments (based on scenario 2 discussed above in which the MAC PDU of the pre-empted transmission cannot be rebuilt such as, for example, because it has already been submitted to the physical layer), the MAC evaluation process for determining if the new data is to be prioritized also considers logical channels corresponding to the data in the already submitted MAC PDU, e.g., the MAC PDU created for grant 2. In particular, the MAC entity may remember the logical channel data, logical channels or logical channel priority of all or at least the highest priority logical channel for the data included in the MAC PDU that was already created (and/or submitted to PHY), according to certain embodiments. This may allow the MAC to evaluate the already submitted MAC PDU for grant 1 for possible pre-emption in light of the logical channels for which new data has become available for transmission using the further new grant (grant 2). In this manner, the MAC may be able to select between the further new grant (grant 2) and the previous grant (grant 1) according to which the MAC PDU sent to PHY was constructed. For example, in some embodiments, the priority of the logical channel data allowed to be transmitted on the further new grant (grant 2) and the priority of the highest priority logical channel data actually included in the MAC PDU already sent to PHY (grant 1) are compared and a prioritization decision is made by LCP.
According to another set of example embodiments (based on scenario 2 discussed above in which the MAC PDU of the pre-empted transmission cannot be rebuilt such as, for example, because the MAC PDU has already been submitted to the physical layer, the MAC logical channel prioritization (LCP) procedure not only considers the new logical channel data, but also logical channel data included within the MAC PDU already submitted to PHY (i.e. if resources available for transmission of the already submitted MAC PDU per grant 1 overlap with resources available for transmitting the new logical channel data per grant 2).
The decision during LCP to consider a logical channel data for which transmission was already started or at least submitted to PHY for transmission on the previously received grant can, for example, be based on detecting a new grant (grant 2) such as, for example, in a Physical Downlink Control Channel (PDCCH) occasion where grant 2 includes an UL time resource with a starting point (e.g. symbol offset) that occurs later than the start of the grant 1's UL Physical Uplink Shared Channel (PUSCH), but has a time duration that partially overlaps with that of grant 1. Accordingly, grant 2 may be considered overlapping with grant 1 if it meets this criteria.
In certain embodiments, the UE may consider the multiplexed (or not multiplexed) data on the pre-empted PUSCH when multiplexing the MAC control element (CE) for the pre-empting PUSCH. For example, the MAC CE multiplexing into the transmission of new data may be dependent of whether data from previous (pre-empted) transmission is again also multiplexed on the pre-empting transmission. For instance, if data associated with the pre-empted transmission could be multiplexed (all or part of it) into the pre-empting transmission, then a decision about potentially multiplexing a Buffer Status Report (BSR) MAC CE on the pre-empting transmission may be made taking into account the buffer status after multiplexing all or part of the data associated with the pre-empted transmission.
According to certain other embodiments, if the pre-empted resources corresponding to the first configured grant configuration (grant 1) were supposed to include the confirmation MAC CE, then a confirmation MAC CE pointing to the pre-empted confirmation MAC CE (i.e. referring to the same HARQ process ID as the pre-empted confirmation MAC CE) should be included in the MAC PDU sent using the resources associated with the pre-empting grant (grant 2).
According to still other embodiments, given that the HARQ process ID (HARQ PID) associated with the pre-empting grant (grant 2) is different than that of the pre-empted one (grant 1), the UE should expect the Hybrid Automatic Repeat Request (HARQ) feedback of the later transmission to inform the UE about the previous (pre-empted) data multiplexed on grant 2. Upon reception of ACK for the PID associated with grant 2, the UE may flush also the earlier HARQ process buffer in the case that all of its content was sent on the pre-empting transmission.
According to certain alternative embodiments, if the logical channel data included within a Medium Access Control Protocol Data Unit (MAC PDU) already submitted to PHY is a re-transmission of the logical channel data included in a previously built MAC PDU, then that logical channel data is not considered in the logical channel prioritization (LCP) procedure. A non-limiting example is provided below:
Therefore, according to certain embodiments, a PDU according to grant 2 should be constructed and submitted to PHY, and even including pre-empting the transmission (if a MAC PDU is already constructed and sent to PHY) according to grant 1. This results because the logical channel data H has higher priority than previously submitted data L.
Consider the situation where grant 2 has a size of 200 bytes.
According to certain embodiments, beside prioritizing the 100 byte data of H, the remaining space of the selected grant is utilized for the previously submitted data of L, i.e. 100 byte as considered in the LCP procedure.
From the example described above, certain advantages become clear. In particular, that data (or parts of it) of a pre-empted transmission need not be lost because it may be included in the pre-empting transmission. Moreover, if there is room in this pre-empting transmission, the space is not wasted such as, for example, by including padding, but instead the remaining MAC PDU space is filled up with the otherwise lost pre-empted data. As a result, a network node such as a gNB, for example, is provided additional scheduling flexibility to replace grants by larger grants without increase the amount of lost data or reissuance of grants.
The wireless network may comprise and/or interface with any type of communication, telecommunication, data, cellular, and/or radio network or other similar type of system. In some embodiments, the wireless network may be configured to operate according to specific standards or other types of predefined rules or procedures. Thus, particular embodiments of the wireless network may implement communication standards, such as Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), and/or other suitable 2G, 3G, 4G, or 5G standards; wireless local area network (WLAN) standards, such as the IEEE 802.11 standards; and/or any other appropriate wireless communication standard, such as the Worldwide Interoperability for Microwave Access (WiMax), Bluetooth, Z-Wave and/or ZigBee standards.
Network 106 may comprise one or more backhaul networks, core networks, IP networks, public switched telephone networks (PSTNs), packet data networks, optical networks, wide-area networks (WANs), local area networks (LANs), wireless local area networks (WLANs), wired networks, wireless networks, metropolitan area networks, and other networks to enable communication between devices.
Network node 160 and wireless device 110 comprise various components described in more detail below. These components work together in order to provide network node and/or wireless device functionality, such as providing wireless connections in a wireless network. In different embodiments, the wireless network may comprise any number of wired or wireless networks, network nodes, base stations, controllers, wireless devices, relay stations, and/or any other components or systems that may facilitate or participate in the communication of data and/or signals whether via wired or wireless connections.
In
Similarly, network node 160 may be composed of multiple physically separate components (e.g., a NodeB component and a RNC component, or a BTS component and a BSC component, etc.), which may each have their own respective components. In certain scenarios in which network node 160 comprises multiple separate components (e.g., BTS and BSC components), one or more of the separate components may be shared among several network nodes. For example, a single RNC may control multiple NodeB's. In such a scenario, each unique NodeB and RNC pair, may in some instances be considered a single separate network node. In some embodiments, network node 160 may be configured to support multiple radio access technologies (RATs). In such embodiments, some components may be duplicated (e.g., separate device readable medium 180 for the different RATs) and some components may be reused (e.g., the same antenna 162 may be shared by the RATs). Network node 160 may also include multiple sets of the various illustrated components for different wireless technologies integrated into network node 160, such as, for example, GSM, Wide Code Division Multiplexing Access (WCDMA), Long Term Evolution (LTE), New Radio (NR), WiFi, or Bluetooth wireless technologies. These wireless technologies may be integrated into the same or different chip or set of chips and other components within network node 160.
Processing circuitry 170 is configured to perform any determining, calculating, or similar operations (e.g., certain obtaining operations) described herein as being provided by a network node. These operations performed by processing circuitry 170 may include processing information obtained by processing circuitry 170 by, for example, converting the obtained information into other information, comparing the obtained information or converted information to information stored in the network node, and/or performing one or more operations based on the obtained information or converted information, and as a result of said processing making a determination.
Processing circuitry 170 may comprise a combination of one or more of a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application-specific integrated circuit, field programmable gate array, or any other suitable computing device, resource, or combination of hardware, software and/or encoded logic operable to provide, either alone or in conjunction with other network node 160 components, such as device readable medium 180, network node 160 functionality. For example, processing circuitry 170 may execute instructions stored in device readable medium 180 or in memory within processing circuitry 170. Such functionality may include providing any of the various wireless features, functions, or benefits discussed herein. In some embodiments, processing circuitry 170 may include a system on a chip (SOC).
In some embodiments, processing circuitry 170 may include one or more of radio frequency (RF) transceiver circuitry 172 and baseband processing circuitry 174. In some embodiments, RF transceiver circuitry 172 and baseband processing circuitry 174 may be on separate chips (or sets of chips), boards, or units, such as radio units and digital units. In alternative embodiments, part or all of RF transceiver circuitry 172 and baseband processing circuitry 174 may be on the same chip or set of chips, boards, or units
In certain embodiments, some or all of the functionality described herein as being provided by a network node, base station, eNB or other such network device may be performed by processing circuitry 170 executing instructions stored on device readable medium 180 or memory within processing circuitry 170. In alternative embodiments, some or all of the functionality may be provided by processing circuitry 170 without executing instructions stored on a separate or discrete device readable medium, such as in a hard-wired manner. In any of those embodiments, whether executing instructions stored on a device readable storage medium or not, processing circuitry 170 can be configured to perform the described functionality. The benefits provided by such functionality are not limited to processing circuitry 170 alone or to other components of network node 160, but are enjoyed by network node 160 as a whole, and/or by end users and the wireless network generally.
Device readable medium 180 may comprise any form of volatile or non-volatile computer readable memory including, without limitation, persistent storage, solid-state memory, remotely mounted memory, magnetic media, optical media, random access memory (RAM), read-only memory (ROM), mass storage media (for example, a hard disk), removable storage media (for example, a flash drive, a Compact Disk (CD) or a Digital Video Disk (DVD)), and/or any other volatile or non-volatile, non-transitory device readable and/or computer-executable memory devices that store information, data, and/or instructions that may be used by processing circuitry 170. Device readable medium 180 may store any suitable instructions, data or information, including a computer program, software, an application including one or more of logic, rules, code, tables, etc. and/or other instructions capable of being executed by processing circuitry 170 and, utilized by network node 160. Device readable medium 180 may be used to store any calculations made by processing circuitry 170 and/or any data received via interface 190. In some embodiments, processing circuitry 170 and device readable medium 180 may be considered to be integrated.
Interface 190 is used in the wired or wireless communication of signalling and/or data between network node 160, network 106, and/or wireless devices 110. As illustrated, interface 190 comprises port(s)/terminal(s) 194 to send and receive data, for example to and from network 106 over a wired connection. Interface 190 also includes radio front end circuitry 192 that may be coupled to, or in certain embodiments a part of, antenna 162. Radio front end circuitry 192 comprises filters 198 and amplifiers 196. Radio front end circuitry 192 may be connected to antenna 162 and processing circuitry 170. Radio front end circuitry may be configured to condition signals communicated between antenna 162 and processing circuitry 170. Radio front end circuitry 192 may receive digital data that is to be sent out to other network nodes or wireless devices via a wireless connection. Radio front end circuitry 192 may convert the digital data into a radio signal having the appropriate channel and bandwidth parameters using a combination of filters 198 and/or amplifiers 196. The radio signal may then be transmitted via antenna 162. Similarly, when receiving data, antenna 162 may collect radio signals which are then converted into digital data by radio front end circuitry 192. The digital data may be passed to processing circuitry 170. In other embodiments, the interface may comprise different components and/or different combinations of components.
In certain alternative embodiments, network node 160 may not include separate radio front end circuitry 192, instead, processing circuitry 170 may comprise radio front end circuitry and may be connected to antenna 162 without separate radio front end circuitry 192. Similarly, in some embodiments, all or some of RF transceiver circuitry 172 may be considered a part of interface 190. In still other embodiments, interface 190 may include one or more ports or terminals 194, radio front end circuitry 192, and RF transceiver circuitry 172, as part of a radio unit (not shown), and interface 190 may communicate with baseband processing circuitry 174, which is part of a digital unit (not shown).
Antenna 162 may include one or more antennas, or antenna arrays, configured to send and/or receive wireless signals. Antenna 162 may be coupled to radio front end circuitry 190 and may be any type of antenna capable of transmitting and receiving data and/or signals wirelessly. In some embodiments, antenna 162 may comprise one or more omni-directional, sector or panel antennas operable to transmit/receive radio signals between, for example, 2 GHz and 66 GHz. An omni-directional antenna may be used to transmit/receive radio signals in any direction, a sector antenna may be used to transmit/receive radio signals from devices within a particular area, and a panel antenna may be a line of sight antenna used to transmit/receive radio signals in a relatively straight line. In some instances, the use of more than one antenna may be referred to as MIMO. In certain embodiments, antenna 162 may be separate from network node 160 and may be connectable to network node 160 through an interface or port.
Antenna 162, interface 190, and/or processing circuitry 170 may be configured to perform any receiving operations and/or certain obtaining operations described herein as being performed by a network node. Any information, data and/or signals may be received from a wireless device, another network node and/or any other network equipment. Similarly, antenna 162, interface 190, and/or processing circuitry 170 may be configured to perform any transmitting operations described herein as being performed by a network node. Any information, data and/or signals may be transmitted to a wireless device, another network node and/or any other network equipment.
Power circuitry 187 may comprise, or be coupled to, power management circuitry and is configured to supply the components of network node 160 with power for performing the functionality described herein. Power circuitry 187 may receive power from power source 186. Power source 186 and/or power circuitry 187 may be configured to provide power to the various components of network node 160 in a form suitable for the respective components (e.g., at a voltage and current level needed for each respective component). Power source 186 may either be included in, or external to, power circuitry 187 and/or network node 160. For example, network node 160 may be connectable to an external power source (e.g., an electricity outlet) via an input circuitry or interface such as an electrical cable, whereby the external power source supplies power to power circuitry 187. As a further example, power source 186 may comprise a source of power in the form of a battery or battery pack which is connected to, or integrated in, power circuitry 187. The battery may provide backup power should the external power source fail. Other types of power sources, such as photovoltaic devices, may also be used.
Alternative embodiments of network node 160 may include additional components beyond those shown in
As illustrated, wireless device 110 includes antenna 111, interface 114, processing circuitry 120, device readable medium 130, user interface equipment 132, auxiliary equipment 134, power source 136 and power circuitry 137. Wireless device 110 may include multiple sets of one or more of the illustrated components for different wireless technologies supported by wireless device 110, such as, for example, GSM, WCDMA, LTE, NR, WiFi, WiMAX, or Bluetooth wireless technologies, just to mention a few. These wireless technologies may be integrated into the same or different chips or set of chips as other components within wireless device 110.
Antenna 111 may include one or more antennas or antenna arrays, configured to send and/or receive wireless signals, and is connected to interface 114. In certain alternative embodiments, antenna 111 may be separate from wireless device 110 and be connectable to wireless device 110 through an interface or port. Antenna 111, interface 114, and/or processing circuitry 120 may be configured to perform any receiving or transmitting operations described herein as being performed by a wireless device. Any information, data and/or signals may be received from a network node and/or another wireless device. In some embodiments, radio front end circuitry and/or antenna 111 may be considered an interface.
As illustrated, interface 114 comprises radio front end circuitry 112 and antenna 111. Radio front end circuitry 112 comprise one or more filters 118 and amplifiers 116. Radio front end circuitry 114 is connected to antenna 111 and processing circuitry 120, and is configured to condition signals communicated between antenna 111 and processing circuitry 120. Radio front end circuitry 112 may be coupled to or a part of antenna 111. In some embodiments, wireless device 110 may not include separate radio front end circuitry 112; rather, processing circuitry 120 may comprise radio front end circuitry and may be connected to antenna 111. Similarly, in some embodiments, some or all of RF transceiver circuitry 122 may be considered a part of interface 114. Radio front end circuitry 112 may receive digital data that is to be sent out to other network nodes or wireless devices via a wireless connection. Radio front end circuitry 112 may convert the digital data into a radio signal having the appropriate channel and bandwidth parameters using a combination of filters 118 and/or amplifiers 116. The radio signal may then be transmitted via antenna 111. Similarly, when receiving data, antenna 111 may collect radio signals which are then converted into digital data by radio front end circuitry 112. The digital data may be passed to processing circuitry 120. In other embodiments, the interface may comprise different components and/or different combinations of components.
Processing circuitry 120 may comprise a combination of one or more of a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application-specific integrated circuit, field programmable gate array, or any other suitable computing device, resource, or combination of hardware, software, and/or encoded logic operable to provide, either alone or in conjunction with other wireless device 110 components, such as device readable medium 130, wireless device 110 functionality. Such functionality may include providing any of the various wireless features or benefits discussed herein. For example, processing circuitry 120 may execute instructions stored in device readable medium 130 or in memory within processing circuitry 120 to provide the functionality disclosed herein.
As illustrated, processing circuitry 120 includes one or more of RF transceiver circuitry 122, baseband processing circuitry 124, and application processing circuitry 126. In other embodiments, the processing circuitry may comprise different components and/or different combinations of components. In certain embodiments processing circuitry 120 of wireless device 110 may comprise a SOC. In some embodiments, RF transceiver circuitry 122, baseband processing circuitry 124, and application processing circuitry 126 may be on separate chips or sets of chips. In alternative embodiments, part or all of baseband processing circuitry 124 and application processing circuitry 126 may be combined into one chip or set of chips, and RF transceiver circuitry 122 may be on a separate chip or set of chips. In still alternative embodiments, part or all of RF transceiver circuitry 122 and baseband processing circuitry 124 may be on the same chip or set of chips, and application processing circuitry 126 may be on a separate chip or set of chips. In yet other alternative embodiments, part or all of RF transceiver circuitry 122, baseband processing circuitry 124, and application processing circuitry 126 may be combined in the same chip or set of chips. In some embodiments, RF transceiver circuitry 122 may be a part of interface 114. RF transceiver circuitry 122 may condition RF signals for processing circuitry 120.
In certain embodiments, some or all of the functionality described herein as being performed by a wireless device may be provided by processing circuitry 120 executing instructions stored on device readable medium 130, which in certain embodiments may be a computer-readable storage medium. In alternative embodiments, some or all of the functionality may be provided by processing circuitry 120 without executing instructions stored on a separate or discrete device readable storage medium, such as in a hard-wired manner. In any of those particular embodiments, whether executing instructions stored on a device readable storage medium or not, processing circuitry 120 can be configured to perform the described functionality. The benefits provided by such functionality are not limited to processing circuitry 120 alone or to other components of wireless device 110, but are enjoyed by wireless device 110 as a whole, and/or by end users and the wireless network generally.
Processing circuitry 120 may be configured to perform any determining, calculating, or similar operations (e.g., certain obtaining operations) described herein as being performed by a wireless device. These operations, as performed by processing circuitry 120, may include processing information obtained by processing circuitry 120 by, for example, converting the obtained information into other information, comparing the obtained information or converted information to information stored by wireless device 110, and/or performing one or more operations based on the obtained information or converted information, and as a result of said processing making a determination.
Device readable medium 130 may be operable to store a computer program, software, an application including one or more of logic, rules, code, tables, etc. and/or other instructions capable of being executed by processing circuitry 120. Device readable medium 130 may include computer memory (e.g., Random Access Memory (RAM) or Read Only Memory (ROM)), mass storage media (e.g., a hard disk), removable storage media (e.g., a Compact Disk (CD) or a Digital Video Disk (DVD)), and/or any other volatile or non-volatile, non-transitory device readable and/or computer executable memory devices that store information, data, and/or instructions that may be used by processing circuitry 120. In some embodiments, processing circuitry 120 and device readable medium 130 may be considered to be integrated.
User interface equipment 132 may provide components that allow for a human user to interact with wireless device 110. Such interaction may be of many forms, such as visual, audial, tactile, etc. User interface equipment 132 may be operable to produce output to the user and to allow the user to provide input to wireless device 110. The type of interaction may vary depending on the type of user interface equipment 132 installed in wireless device 110. For example, if wireless device 110 is a smart phone, the interaction may be via a touch screen; if wireless device 110 is a smart meter, the interaction may be through a screen that provides usage (e.g., the number of gallons used) or a speaker that provides an audible alert (e.g., if smoke is detected). User interface equipment 132 may include input interfaces, devices and circuits, and output interfaces, devices and circuits. User interface equipment 132 is configured to allow input of information into wireless device 110, and is connected to processing circuitry 120 to allow processing circuitry 120 to process the input information. User interface equipment 132 may include, for example, a microphone, a proximity or other sensor, keys/buttons, a touch display, one or more cameras, a USB port, or other input circuitry. User interface equipment 132 is also configured to allow output of information from wireless device 110, and to allow processing circuitry 120 to output information from wireless device 110. User interface equipment 132 may include, for example, a speaker, a display, vibrating circuitry, a USB port, a headphone interface, or other output circuitry. Using one or more input and output interfaces, devices, and circuits, of user interface equipment 132, wireless device 110 may communicate with end users and/or the wireless network, and allow them to benefit from the functionality described herein.
Auxiliary equipment 134 is operable to provide more specific functionality which may not be generally performed by wireless devices. This may comprise specialized sensors for doing measurements for various purposes, interfaces for additional types of communication such as wired communications etc. The inclusion and type of components of auxiliary equipment 134 may vary depending on the embodiment and/or scenario.
Power source 136 may, in some embodiments, be in the form of a battery or battery pack. Other types of power sources, such as an external power source (e.g., an electricity outlet), photovoltaic devices or power cells, may also be used. Wireless device 110 may further comprise power circuitry 137 for delivering power from power source 136 to the various parts of wireless device 110 which need power from power source 136 to carry out any functionality described or indicated herein. Power circuitry 137 may in certain embodiments comprise power management circuitry. Power circuitry 137 may additionally or alternatively be operable to receive power from an external power source; in which case wireless device 110 may be connectable to the external power source (such as an electricity outlet) via input circuitry or an interface such as an electrical power cable. Power circuitry 137 may also in certain embodiments be operable to deliver power from an external power source to power source 136. This may be, for example, for the charging of power source 136. Power circuitry 137 may perform any formatting, converting, or other modification to the power from power source 136 to make the power suitable for the respective components of wireless device 110 to which power is supplied.
In
In
In the depicted embodiment, input/output interface 205 may be configured to provide a communication interface to an input device, output device, or input and output device. UE 200 may be configured to use an output device via input/output interface 205. An output device may use the same type of interface port as an input device. For example, a USB port may be used to provide input to and output from UE 200. The output device may be a speaker, a sound card, a video card, a display, a monitor, a printer, an actuator, an emitter, a smartcard, another output device, or any combination thereof. UE 200 may be configured to use an input device via input/output interface 205 to allow a user to capture information into UE 200. The input device may include a touch-sensitive or presence-sensitive display, a camera (e.g., a digital camera, a digital video camera, a web camera, etc.), a microphone, a sensor, a mouse, a trackball, a directional pad, a trackpad, a scroll wheel, a smartcard, and the like. The presence-sensitive display may include a capacitive or resistive touch sensor to sense input from a user. A sensor may be, for instance, an accelerometer, a gyroscope, a tilt sensor, a force sensor, a magnetometer, an optical sensor, a proximity sensor, another like sensor, or any combination thereof. For example, the input device may be an accelerometer, a magnetometer, a digital camera, a microphone, and an optical sensor.
In
RAM 217 may be configured to interface via bus 202 to processing circuitry 201 to provide storage or caching of data or computer instructions during the execution of software programs such as the operating system, application programs, and device drivers. ROM 219 may be configured to provide computer instructions or data to processing circuitry 201. For example, ROM 219 may be configured to store invariant low-level system code or data for basic system functions such as basic input and output (I/O), startup, or reception of keystrokes from a keyboard that are stored in a non-volatile memory. Storage medium 221 may be configured to include memory such as RAM, ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic disks, optical disks, floppy disks, hard disks, removable cartridges, or flash drives. In one example, storage medium 221 may be configured to include operating system 223, application program 225 such as a web browser application, a widget or gadget engine or another application, and data file 227. Storage medium 221 may store, for use by UE 200, any of a variety of various operating systems or combinations of operating systems.
Storage medium 221 may be configured to include a number of physical drive units, such as redundant array of independent disks (RAID), floppy disk drive, flash memory, USB flash drive, external hard disk drive, thumb drive, pen drive, key drive, high-density digital versatile disc (HD-DVD) optical disc drive, internal hard disk drive, Blu-Ray optical disc drive, holographic digital data storage (HDDS) optical disc drive, external mini-dual in-line memory module (DIMM), synchronous dynamic random access memory (SDRAM), external micro-DIMM SDRAM, smartcard memory such as a subscriber identity module or a removable user identity (SIM/RUIM) module, other memory, or any combination thereof. Storage medium 221 may allow UE 200 to access computer-executable instructions, application programs or the like, stored on transitory or non-transitory memory media, to off-load data, or to upload data. An article of manufacture, such as one utilizing a communication system may be tangibly embodied in storage medium 221, which may comprise a device readable medium.
In
In the illustrated embodiment, the communication functions of communication subsystem 231 may include data communication, voice communication, multimedia communication, short-range communications such as Bluetooth, near-field communication, location-based communication such as the use of the global positioning system (GPS) to determine a location, another like communication function, or any combination thereof. For example, communication subsystem 231 may include cellular communication, Wi-Fi communication, Bluetooth communication, and GPS communication. Network 243b may encompass wired and/or wireless networks such as a local-area network (LAN), a wide-area network (WAN), a computer network, a wireless network, a telecommunications network, another like network or any combination thereof. For example, network 243b may be a cellular network, a Wi-Fi network, and/or a near-field network. Power source 213 may be configured to provide alternating current (AC) or direct current (DC) power to components of UE 200.
The features, benefits and/or functions described herein may be implemented in one of the components of UE 200 or partitioned across multiple components of UE 200. Further, the features, benefits, and/or functions described herein may be implemented in any combination of hardware, software or firmware. In one example, communication subsystem 231 may be configured to include any of the components described herein. Further, processing circuitry 201 may be configured to communicate with any of such components over bus 202. In another example, any of such components may be represented by program instructions stored in memory that when executed by processing circuitry 201 perform the corresponding functions described herein. In another example, the functionality of any of such components may be partitioned between processing circuitry 201 and communication subsystem 231. In another example, the non-computationally intensive functions of any of such components may be implemented in software or firmware and the computationally intensive functions may be implemented in hardware.
In some embodiments, some or all of the functions described herein may be implemented as virtual components executed by one or more virtual machines implemented in one or more virtual environments 300 hosted by one or more of hardware nodes 330. Further, in embodiments in which the virtual node is not a radio access node or does not require radio connectivity (e.g., a core network node), then the network node may be entirely virtualized.
The functions may be implemented by one or more applications 320 (which may alternatively be called software instances, virtual appliances, network functions, virtual nodes, virtual network functions, etc.) operative to implement some of the features, functions, and/or benefits of some of the embodiments disclosed herein. Applications 320 are run in virtualization environment 300 which provides hardware 330 comprising processing circuitry 360 and memory 390. Memory 390 contains instructions 395 executable by processing circuitry 360 whereby application 320 is operative to provide one or more of the features, benefits, and/or functions disclosed herein.
Virtualization environment 300, comprises general-purpose or special-purpose network hardware devices 330 comprising a set of one or more processors or processing circuitry 360, which may be commercial off-the-shelf (COTS) processors, dedicated Application Specific Integrated Circuits (ASICs), or any other type of processing circuitry including digital or analog hardware components or special purpose processors. Each hardware device may comprise memory 390-1 which may be non-persistent memory for temporarily storing instructions 395 or software executed by processing circuitry 360. Each hardware device may comprise one or more network interface controllers (NICs) 370, also known as network interface cards, which include physical network interface 380. Each hardware device may also include non-transitory, persistent, machine-readable storage media 390-2 having stored therein software 395 and/or instructions executable by processing circuitry 360. Software 395 may include any type of software including software for instantiating one or more virtualization layers 350 (also referred to as hypervisors), software to execute virtual machines 340 as well as software allowing it to execute functions, features and/or benefits described in relation with some embodiments described herein.
Virtual machines 340, comprise virtual processing, virtual memory, virtual networking or interface and virtual storage, and may be run by a corresponding virtualization layer 350 or hypervisor. Different embodiments of the instance of virtual appliance 320 may be implemented on one or more of virtual machines 340, and the implementations may be made in different ways.
During operation, processing circuitry 360 executes software 395 to instantiate the hypervisor or virtualization layer 350, which may sometimes be referred to as a virtual machine monitor (VMM). Virtualization layer 350 may present a virtual operating platform that appears like networking hardware to virtual machine 340.
As shown in
Virtualization of the hardware is in some contexts referred to as network function virtualization (NFV). NFV may be used to consolidate many network equipment types onto industry standard high volume server hardware, physical switches, and physical storage, which can be located in data centers, and customer premise equipment.
In the context of NFV, virtual machine 340 may be a software implementation of a physical machine that runs programs as if they were executing on a physical, non-virtualized machine. Each of virtual machines 340, and that part of hardware 330 that executes that virtual machine, be it hardware dedicated to that virtual machine and/or hardware shared by that virtual machine with others of the virtual machines 340, forms a separate virtual network elements (VNE).
Still in the context of NFV, Virtual Network Function (VNF) is responsible for handling specific network functions that run in one or more virtual machines 340 on top of hardware networking infrastructure 330 and corresponds to application 320 in
In some embodiments, one or more radio units 3200 that each include one or more transmitters 3220 and one or more receivers 3210 may be coupled to one or more antennas 3225. Radio units 3200 may communicate directly with hardware nodes 330 via one or more appropriate network interfaces and may be used in combination with the virtual components to provide a virtual node with radio capabilities, such as a radio access node or a base station.
In some embodiments, some signalling can be affected with the use of control system 3230 which may alternatively be used for communication between the hardware nodes 330 and radio units 3200.
Telecommunication network 410 is itself connected to host computer 430, which may be embodied in the hardware and/or software of a standalone server, a cloud-implemented server, a distributed server or as processing resources in a server farm. Host computer 430 may be under the ownership or control of a service provider, or may be operated by the service provider or on behalf of the service provider. Connections 421 and 422 between telecommunication network 410 and host computer 430 may extend directly from core network 414 to host computer 430 or may go via an optional intermediate network 420. Intermediate network 420 may be one of, or a combination of more than one of, a public, private or hosted network; intermediate network 420, if any, may be a backbone network or the Internet; in particular, intermediate network 420 may comprise two or more sub-networks (not shown).
The communication system of
Communication system 500 further includes base station 520 provided in a telecommunication system and comprising hardware 525 enabling it to communicate with host computer 510 and with UE 530. Hardware 525 may include communication interface 526 for setting up and maintaining a wired or wireless connection with an interface of a different communication device of communication system 500, as well as radio interface 527 for setting up and maintaining at least wireless connection 570 with UE 530 located in a coverage area (not shown in
Communication system 500 further includes UE 530 already referred to. Its hardware 535 may include radio interface 537 configured to set up and maintain wireless connection 570 with a base station serving a coverage area in which UE 530 is currently located. Hardware 535 of UE 530 further includes processing circuitry 538, which may comprise one or more programmable processors, application-specific integrated circuits, field programmable gate arrays or combinations of these (not shown) adapted to execute instructions. UE 530 further comprises software 531, which is stored in or accessible by UE 530 and executable by processing circuitry 538. Software 531 includes client application 532. Client application 532 may be operable to provide a service to a human or non-human user via UE 530, with the support of host computer 510. In host computer 510, an executing host application 512 may communicate with the executing client application 532 via OTT connection 550 terminating at UE 530 and host computer 510. In providing the service to the user, client application 532 may receive request data from host application 512 and provide user data in response to the request data. OTT connection 550 may transfer both the request data and the user data. Client application 532 may interact with the user to generate the user data that it provides.
It is noted that host computer 510, base station 520 and UE 530 illustrated in
In
Wireless connection 570 between UE 530 and base station 520 is in accordance with the teachings of the embodiments described throughout this disclosure. One or more of the various embodiments improve the performance of OTT services provided to UE 530 using OTT connection 550, in which wireless connection 570 forms the last segment. More precisely, the teachings of these embodiments may improve the data rate and latency and thereby provide benefits such as relaxed restriction on file sizes and better responsiveness.
A measurement procedure may be provided for the purpose of monitoring data rate, latency and other factors on which the one or more embodiments improve. There may further be an optional network functionality for reconfiguring OTT connection 550 between host computer 510 and UE 530, in response to variations in the measurement results. The measurement procedure and/or the network functionality for reconfiguring OTT connection 550 may be implemented in software 511 and hardware 515 of host computer 510 or in software 531 and hardware 535 of UE 530, or both. In embodiments, sensors (not shown) may be deployed in or in association with communication devices through which OTT connection 550 passes; the sensors may participate in the measurement procedure by supplying values of the monitored quantities exemplified above, or supplying values of other physical quantities from which software 511, 531 may compute or estimate the monitored quantities. The reconfiguring of OTT connection 550 may include message format, retransmission settings, preferred routing etc.; the reconfiguring need not affect base station 520, and it may be unknown or imperceptible to base station 520. Such procedures and functionalities may be known and practiced in the art. In certain embodiments, measurements may involve proprietary UE signaling facilitating host computer 510's measurements of throughput, propagation times, latency and the like. The measurements may be implemented in that software 511 and 531 causes messages to be transmitted, in particular empty or ‘dummy’ messages, using OTT connection 550 while it monitors propagation times, errors etc.
Any appropriate steps, methods, features, functions, or benefits disclosed herein may be performed through one or more functional units or modules of one or more virtual apparatuses. Each virtual apparatus may comprise a number of these functional units. These functional units may be implemented via processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include digital signal processors (DSPs), special-purpose digital logic, and the like. The processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as read-only memory (ROM), random-access memory (RAM), cache memory, flash memory devices, optical storage devices, etc. Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein. In some implementations, the processing circuitry may be used to cause the respective functional unit to perform corresponding functions according one or more embodiments of the present disclosure.
The term unit may have conventional meaning in the field of electronics, electrical devices and/or electronic devices and may include, for example, electrical and/or electronic circuitry, devices, modules, processors, memories, logic solid state and/or discrete devices, computer programs or instructions for carrying out respective tasks, procedures, computations, outputs, and/or displaying functions, and so on, as such as those that are described herein.
If the grants are overlapping, the method may move to step 1008, wherein it is determined whether to pre-empt the constructed MAC PDU based on the second grant of resources. For example, the wireless device 110 may retain prioritization information of the first grant even after the construction of the MAC PDU. Then, the wireless device 110 may compare the prioritization information between the first grant and the second grant. The determination may be made based on this comparison to choose the grant that has the highest priority based on the associated prioritization information. At step 1010, the constructed MAC PDU is pre-empted if the second prioritization information indicates a higher priority than indicated by the first prioritization information. Accordingly, the method depicted in
In certain embodiments, the method in
In some embodiments a computer program, computer program product or computer readable storage medium comprises instructions which when executed on a computer perform any of the embodiments disclosed herein. In further examples the instructions are carried on a signal or carrier and which are executable on a computer wherein when executed perform any of the embodiments disclosed herein.
In a particular embodiment, the first prioritization information is determined based on a highest priority of logical channel data allocated for transmission using the first grant and the second prioritization information is determined based on a priority of logical channel data to be transmitted using the second grant.
In a particular embodiment, when determining whether to pre-empt the transmission of the constructed MAC PDU based on the comparing of the first prioritization information and the second prioritization information, the wireless device 110 compares the priority of the highest priority of logical channel data for transmission using the first grant and the highest priority of the logical channel data to be transmitted using the second grant.
In a particular embodiment, the wireless device 110 constructs a MAC PDU based on the second grant. In a further particular embodiment, when constructing the MAC PDU based on the second grant, the wireless device 110 multiplexes data allocated for transmission using the first grant with new data to be transmitted using the second grant. In a further particular embodiment, the wireless device 110 determines whether to multiplex a MAC CE into the MAC PDU constructed based on the second grant, and the determining step may be based on a buffer status after multiplexing the data allocated for transmission using the first grant with the new data to be transmitted using the second grant.
In a particular embodiment, the constructed MAC PDU based on the first grant comprises a first confirmation MAC CE, and the MAC PDU constructed based on the second grant comprises a second confirmation MAC CE referring to a same HARQ process ID as the first confirmation MAC CE.
In a particular embodiment, the wireless device 110 receives HARQ feedback for the MAC PDU constructed and transmitted based on the second grant, and the HARQ feedback includes a HARQ status of data to be transmitted using the first grant multiplexed in the constructed and transmitted MAC PDU based on the second grant.
In a particular embodiment, at least one of the first grant of resources and the second grant of resources comprises a dynamic grant. In a further particular embodiment, both the first grant of resources and the second grant of resources comprises dynamic grants.
In a particular embodiment, at least one of the first grant and the second grant is a configured grant.
In a further particular embodiment, the step of determining whether to pre-empt the transmission of the constructed MAC PDU based on the comparing the first prioritization information and second prioritization information is performed after the constructed MAC PDU based on the first grant is transmitted to a PHY. In a further particular embodiment, the step of determining whether to pre-empt the transmission of the constructed MAC PDU based on comparing the first prioritization information and second prioritization information is performed after PHY has initiated the transmission of the constructed MAC PDU.
Virtual Apparatus 1200 may comprise processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include digital signal processors (DSPs), special-purpose digital logic, and the like. The processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as read-only memory (ROM), random-access memory, cache memory, flash memory devices, optical storage devices, etc. Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein, in several embodiments. In some implementations, the processing circuitry may be used to cause first receiving module 1210, constructing module 1220, second receiving module 1230, determining module 1240, pre-empting module 1250, and any other suitable units of apparatus 1200 to perform corresponding functions according one or more embodiments of the present disclosure.
According to certain embodiments, first receiving module 1210 may perform certain of the receiving functions of the apparatus 1200. For example, first receiving module 1210 may receive a first grant of resources from a network node 160. The first grant of resources is associated with first prioritization information.
According to certain embodiments, constructing module 1220 may perform certain of the constructing functions of the apparatus 1200. For example, constructing module 1220 may construct a MAC PDU based on the first grant.
According to certain embodiments, second receiving module 1230 may perform certain of the receiving functions of the apparatus 1200. For example, second receiving module 1230 may receive a second grant of resources from the network node that is overlapping with the first grant of resources, and the second grant of resources is associated with second prioritization information.
According to certain embodiments, determining module 1240 may perform certain of the determining functions of the apparatus 1200. For example, determining module 1240 may determine whether to pre-empt transmission of the constructed MAC PDU based on comparing the first prioritization information and second prioritization information.
According to certain embodiments, pre-empting module 1250 may perform certain of the pre-empting functions of the apparatus 1200. For example, pre-empting module 1250 may pre-empt the transmission of the constructed MAC PDU if the second prioritization information indicates a higher priority than indicated by the first prioritization information.
The term unit may have conventional meaning in the field of electronics, electrical devices and/or electronic devices and may include, for example, electrical and/or electronic circuitry, devices, modules, processors, memories, logic solid state and/or discrete devices, computer programs or instructions for carrying out respective tasks, procedures, computations, outputs, and/or displaying functions, and so on, as such as those that are described herein.
In a particular embodiment, the first prioritization information is determined based on a highest priority of logical channel data allocated for transmission using the first grant and the second prioritization information is determined based on a priority of logical channel data allocated for transmission using the second grant.
In a particular embodiment, the network node 160 transmits the second grant of resources being larger than the first grant of resources based on a comparison of the first prioritization information and the second prioritization information.
In a particular embodiment, the transmission from the wireless device 110 based on the second grant comprises a MAC PDU constructed based on the second grant. The MAC PDU includes a second confirmation MAC CE referring to a same HARQ process ID as a first confirmation MAC CE associated with the first grant.
In a particular embodiment, the network node 160 provides to the wireless device 110 the first prioritization information for the first grant and/or the second prioritization information for the second grant, and at least one of the first prioritization information and the second prioritization information includes logical channel priority information.
In a particular embodiment, the network node 160 transmits HARQ feedback to the wireless device 110, and the HARQ feedback includes a HARQ status of data allocated for transmission using the first grant multiplexed in the constructed MAC PDU based on the second grant.
In a particular embodiment, at least one of the first grant of resources and the second grant of resources is a dynamic grant.
In a particular embodiment, both the first grant of resources and the second grant of resources comprises dynamic grants.
In a particular embodiment, at least one of the first grant of resources and the second grant of resources is a configured grant.
Virtual Apparatus 1400 may comprise processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include digital signal processors (DSPs), special-purpose digital logic, and the like. The processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as read-only memory (ROM), random-access memory, cache memory, flash memory devices, optical storage devices, etc. Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein, in several embodiments. In some implementations, the processing circuitry may be used to cause transmitting module 1410, receiving 4module 1420, and any other suitable units of apparatus 1400 to perform corresponding functions according one or more embodiments of the present disclosure.
According to certain embodiments, transmitting module 1410 may perform certain of the transmitting functions of the apparatus 1400. For example, transmitting module 1410 may transmit a second grant of resources to a wireless device 110. The second grant of resources overlaps with a first grant of resources previously transmitted to the wireless device, and the second grant of resources is larger than the first grant of resources. Additionally, the second grant of resources is associated with second prioritization information indicating a higher priority than a first prioritization information associated with the first grant of resources.
According to certain embodiments, receiving module 1420 may perform certain of the receiving functions of the apparatus 1400. For example, receiving module 1420 may receive a transmission from the wireless device 110 based on the second grant of resources. The received transmission includes data allocated by the wireless device 110 for transmission using the first grant of resources and new data allocated by the wireless device 110 for transmission using the second grant of resources.
The term unit may have conventional meaning in the field of electronics, electrical devices and/or electronic devices and may include, for example, electrical and/or electronic circuitry, devices, modules, processors, memories, logic solid state and/or discrete devices, computer programs or instructions for carrying out respective tasks, procedures, computations, outputs, and/or displaying functions, and so on, as such as those that are described herein.
Example Embodiment 1. A method performed by a wireless device, the method comprising: receiving a first grant of resources from a network node, wherein the first grant of resources is associated with first prioritization information; constructing a MAC PDU based on the first grant; receiving a second grant of resources from the network node that is overlapping with the first grant of resources, wherein the second grant of resources is associated with second prioritization information; determining whether to preempt the constructed MAC PDU based on the second grant of resources; and preempting the constructed MAC PDU if the second prioritization information indicates a higher priority than indicated by the first prioritization information.
Example Embodiment 2. The method of the previous embodiment, further comprising constructing a MAC PDU based on the second grant.
Example Embodiment 3. The method of the previous embodiment, wherein constructing a MAC PDU based on the second grant comprises multiplexing data from the preempted MAC PDU with new data in the MAC PDU based on the second grant.
Example Embodiment 4. The method of any of embodiments 2-3, further comprising providing HARQ feedback, wherein the HARQ feedback informs the HARQ status of data in the preempted MAC PDU based on the first grant of resources.
Example Embodiment 5. The method of any of the previous embodiments, wherein the first prioritization information and/or the second prioritization information comprises one or more of logical channel data information, logical channel information or logical channel priority information.
Example Embodiment 6. The method of any of the previous embodiments, further comprising: providing user data; and forwarding the user data to a host computer via the transmission to the base station.
Example Embodiment 7. A method performed by a base station, the method comprising: transmitting a second grant of resources to a wireless device, wherein the second grant of resources overlaps with a first grant of resources previously received at the wireless device; receiving a transmission from the wireless device using the second grant based on a comparison of prioritization information associated with each of the first grant and the second grant, respectively.
Example Embodiment 8. The method of the previous embodiment, further comprising: determining that the second grant of resources may be granted to the wireless device, wherein the second grant of resources is larger than the first grant of resources and is associated with prioritization information indicating a higher priority than the prioritization information of the first grant; wherein the received transmission using the second grant includes data allocated to transmit using the first grant of resources and new data allocated to transmit using the second grant of resources.
Example Embodiment 9. The method of any of the previous embodiments, further comprising providing to the wireless device the prioritization information for the first grant and/or the second grant.
Example Embodiment 10. The method of any of the previous embodiments, further comprising transmitting the first grant of resources to the wireless device prior to transmitting the second grant of resources.
Example Embodiment 11. The method of any of the previous embodiments, wherein at least one of the first grant and the second grant is a dynamic grant.
Example Embodiment 12. The method of any of the previous embodiments, wherein at least one of the first grant and the second grant is a configured grant.
Example Embodiment 13. The method of any of the previous embodiments, further comprising: obtaining user data; and forwarding the user data to a host computer or a wireless device.
Example Embodiment 14. A wireless device, the wireless device comprising: processing circuitry configured to perform any of the steps of any of Example Embodiments 1 to 6; and power supply circuitry configured to supply power to the wireless device.
Example Embodiment 15. A base station, the base station comprising: processing circuitry configured to perform any of the steps of any of Example Embodiments 7 to 13; power supply circuitry configured to supply power to the base station.
Example Embodiment 16. A user equipment (UE), the UE comprising: an antenna configured to send and receive wireless signals; radio front-end circuitry connected to the antenna and to processing circuitry, and configured to condition signals communicated between the antenna and the processing circuitry; the processing circuitry being configured to perform any of the steps of any of Example Embodiments 1 to 6; an input interface connected to the processing circuitry and configured to allow input of information into the UE to be processed by the processing circuitry; an output interface connected to the processing circuitry and configured to output information from the UE that has been processed by the processing circuitry; and a battery connected to the processing circuitry and configured to supply power to the UE.
Example Embodiment 17. A computer program, the computer program comprising instructions which when executed on a computer perform any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 18. A computer program product comprising a computer program, the computer program comprising instructions which when executed on a computer perform any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 19. A non-transitory computer-readable storage medium or carrier comprising a computer program, the computer program comprising instructions which when executed on a computer perform any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 20. A computer program, the computer program comprising instructions which when executed on a computer perform any of the steps of any of Example Embodiments 7 to 13.
Example Embodiment 21. A computer program product comprising a computer program, the computer program comprising instructions which when executed on a computer perform any of the steps of any of Example Embodiments 7 to 13.
Example Embodiment 22. A non-transitory computer-readable storage medium or carrier comprising a computer program, the computer program comprising instructions which when executed on a computer perform any of the steps of any of Example Embodiments 7 to 13.
Example Embodiment 23. A communication system including a host computer comprising: processing circuitry configured to provide user data; and a communication interface configured to forward the user data to a cellular network for transmission to a user equipment (UE), wherein the cellular network comprises a base station having a radio interface and processing circuitry, the base station's processing circuitry configured to perform any of the steps of any of Example Embodiments 7 to 13.
Example Embodiment 24. The communication system of the pervious embodiment further including the base station.
Example Embodiment 25. The communication system of the previous 2 embodiments, further including the UE, wherein the UE is configured to communicate with the base station.
Example Embodiment 26. The communication system of the previous 3 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application, thereby providing the user data; and the UE comprises processing circuitry configured to execute a client application associated with the host application.
Example Embodiment 27. A method implemented in a communication system including a host computer, a base station and a user equipment (UE), the method comprising: at the host computer, providing user data; and at the host computer, initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the base station performs any of the steps of any of Example Embodiments 7 to 13.
Example Embodiment 28. The method of the previous embodiment, further comprising, at the base station, transmitting the user data.
Example Embodiment 29. The method of the previous 2 embodiments, wherein the user data is provided at the host computer by executing a host application, the method further comprising, at the UE, executing a client application associated with the host application.
Example Embodiment 30. A user equipment (UE) configured to communicate with a base station, the UE comprising a radio interface and processing circuitry configured to performs the of the previous 3 embodiments.
Example Embodiment A communication system including a host computer comprising: processing circuitry configured to provide user data; and a communication interface configured to forward user data to a cellular network for transmission to a user equipment (UE), wherein the UE comprises a radio interface and processing circuitry, the UE's components configured to perform any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 32. The communication system of the previous embodiment, wherein the cellular network further includes a base station configured to communicate with the UE.
Example Embodiment 33. The communication system of the previous 2 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application, thereby providing the user data; and the UE's processing circuitry is configured to execute a client application associated with the host application.
Example Embodiment 34. A method implemented in a communication system including a host computer, a base station and a user equipment (UE), the method comprising: at the host computer, providing user data; and at the host computer, initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the UE performs any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 35. The method of the previous embodiment, further comprising at the UE, receiving the user data from the base station.
Example Embodiment 36. A communication system including a host computer comprising: communication interface configured to receive user data originating from a transmission from a user equipment (UE) to a base station, wherein the UE comprises a radio interface and processing circuitry, the UE's processing circuitry configured to perform any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 37. The communication system of the previous embodiment, further including the UE.
Example Embodiment 38. The communication system of the previous 2 embodiments, further including the base station, wherein the base station comprises a radio interface configured to communicate with the UE and a communication interface configured to forward to the host computer the user data carried by a transmission from the UE to the base station.
Example Embodiment 39. The communication system of the previous 3 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application; and the UE's processing circuitry is configured to execute a client application associated with the host application, thereby providing the user data.
Example Embodiment 40. The communication system of the previous 4 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application, thereby providing request data; and the UE's processing circuitry is configured to execute a client application associated with the host application, thereby providing the user data in response to the request data.
Example Embodiment 41. A method implemented in a communication system including a host computer, a base station and a user equipment (UE), the method comprising: at the host computer, receiving user data transmitted to the base station from the UE, wherein the UE performs any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 42. The method of the previous embodiment, further comprising, at the UE, providing the user data to the base station.
Example Embodiment 43. The method of the previous 2 embodiments, further comprising: at the UE, executing a client application, thereby providing the user data to be transmitted; and at the host computer, executing a host application associated with the client application.
Example Embodiment 44. The method of the previous 3 embodiments, further comprising: at the UE, executing a client application; and at the UE, receiving input data to the client application, the input data being provided at the host computer by executing a host application associated with the client application, wherein the user data to be transmitted is provided by the client application in response to the input data.
Example Embodiment 45. A communication system including a host computer comprising a communication interface configured to receive user data originating from a transmission from a user equipment (UE) to a base station, wherein the base station comprises a radio interface and processing circuitry, the base station's processing circuitry configured to perform any of the steps of any of Example Embodiments 7 to 13.
Example Embodiment 46. The communication system of the previous embodiment further including the base station.
Example Embodiment 47. The communication system of the previous 2 embodiments, further including the UE, wherein the UE is configured to communicate with the base station.
Example Embodiment The communication system of the previous 3 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application; the UE is configured to execute a client application associated with the host application, thereby providing the user data to be received by the host computer.
Example Embodiment 49. A method implemented in a communication system including a host computer, a base station and a user equipment (UE), the method comprising: at the host computer, receiving, from the base station, user data originating from a transmission which the base station has received from the UE, wherein the UE performs any of the steps of any of Example Embodiments 1 to 6.
Example Embodiment 50. The method of the previous embodiment, further comprising at the base station, receiving the user data from the UE.
Example Embodiment 51. The method of the previous 2 embodiments, further comprising at the base station, initiating a transmission of the received user data to the host computer.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2020/058308 | 3/25/2020 | WO | 00 |
| Number | Date | Country | |
|---|---|---|---|
| 62825224 | Mar 2019 | US |
