Patent Application
20240322960
The present disclosure relates to the field of communications, for example, a channel or signal sending method and a storage medium.
To support the coexistence of long-term evolution (LTE) and new radio (NR), a dual connection (DC) mode is used. Specifically, the DC mode includes EN-DC where LTE is used in a master cell group (MCG) and NR is used in a secondary cell group (SCG) and NE-DC where NR is used in the MCG and LTE is used in the SCG. E denotes evolved-universal terrestrial radio access (E-UTRA), that is, the 4th generation mobile communication system (4G) radio access network. N denotes NR, that is, the 5G new radio. Next generation (NG) denotes the next generation core network, that is, the 5G core network. EN-DC refers to a dual connection between the 5GNR and the 4G radio access network. NE-DC refers to a dual connection between the 5GNR and the 4G radio access network under the 5G core network. Additionally, NN-DC is also supported in an NR system, that is, NR is used in both the MCG and the SCG.
In NR R15, priorities of various uplink transmission channels or signals in a carrier aggregation (CA) scenario are discussed. When a user equipment (UE) needs to send multiple uplink transmission channels or signals completely or partially overlapping in time domain resources, if the total uplink transmit power of the UE cannot meet the requirements of all uplink transmission channels or signals, the UE needs to allocate the limited uplink transmit power firstly to an uplink transmission channel or signal with a high priority according to the prioritization. The prioritization rule given in NR R15 is described below.
Within a cell group (CG) (the MCG or the SCG), the prioritization includes as follows.
A physical random access channel (PRACH) on a primary cell>a physical uplink control channel (PUCCH) with hybrid automatic repeat request-acknowledgement (HARQ-ACK)/scheduling request (SR)=a physical uplink shared channel (PUSCH) with HARQ-ACK>a PUCCH with channel state information (CSI)=a PUSCH with CSI>a PUSCH without uplink control information (UCI)>an aperiodic sounding reference signal (A-SRS)>a persistent-/semi-SRS (P/SP-SRS)=a PRACH on the secondary cell.
For uplink transmission channels or signals of the same type, a transmission sent on a primary cell has a higher priority than a transmission sent on a secondary cell within the CG (the MCG or the SCG).
For uplink transmission channels or signals of the same type, a transmission sent on a primary cell within the MCG has a higher priority than a transmission sent on a primary cell within the SCG.
Based on the preceding prioritization rule, the UE may decide the allocation of the uplink power among multiple uplink transmission channels or signals.
For EN-DC, NE-DC, NN-DC or CA, when multiple carriers have downlink or uplink transmission requirements, if the sending time of these transmissions completely or partially overlaps, for uplink transmissions, as limited by the transmit power of a terminal, multiple overlapping uplink transmissions cannot be ensured to be sent according to the required power; and for downlink transmissions, in view of interference between the multiple transmissions, it cannot be ensured that a terminal may well demodulate multiple overlapping downlink transmissions.
Embodiments of the present disclosure provide a channel or signal sending method and apparatus, and a storage medium, so as to provide the technical scheme of how to transmit multiple transmission channels or signals when sending of multiple transmissions overlapping in time domain resources cannot be ensured in downlink or uplink.
The present disclosure provides a channel or signal sending method. The method includes steps described below: a first transmission sent on a first carrier or a first carrier group is scheduled, and a second transmission sent on a second carrier or a second carrier group is scheduled, where transmission time of the first transmission overlaps transmission time of the second transmission; if a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal sends the first transmission, and cancels the sending of the second transmission or sends the second transmission with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; determining whether to send the first transmission or the second transmission by itself; determining, according to higher layer signaling configured by a base station, whether to send the first transmission or the second transmission; or determining, according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station, whether to send the first transmission or the second transmission.
The present disclosure further provides a channel or signal sending apparatus. The apparatus is applied to a terminal and includes a determination module. The determination module is configured to schedule a first transmission sent on a first carrier or a first carrier group, and schedule a second transmission sent on a second carrier or a second carrier group, where transmission time of the first transmission overlaps transmission time of the second transmission. If a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal sends the first transmission, and cancels the sending of the second transmission or sends the second transmission with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; determining whether to send the first transmission or the second transmission by itself; determining, according to higher layer signaling configured by a base station, whether to send the first transmission or the second transmission; or determining, according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station, whether to send the first transmission or the second transmission.
The present disclosure further provides a storage medium. The storage medium is configured to store a computer program. The computer program is configured to, when executed, implement any channel or signal sending method described above.
According to the present disclosure, a first transmission sent on a first carrier or a first carrier group is scheduled, and a second transmission sent on a second carrier or a second carrier group is scheduled, where transmission time of the first transmission overlaps transmission time of the second transmission; if a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission can be sent within the transmission time of the first transmission, then a terminal sends the first transmission, and the sending of the second transmission is canceled or the second transmission is sent with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission can be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; determining, by the terminal, whether to send the first transmission or the second transmission; determining, according to higher layer signaling configured by a base station, whether to send the first transmission or the second transmission; or determining, according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station, whether to send the first transmission or the second transmission. The scheme of how to transmit multiple transmission channels or signals when the sending of multiple transmissions overlapping in time domain resources cannot be ensured in downlink or uplink is provided.
The present disclosure is hereinafter described in detail with reference to drawings in conjunction with embodiments.
It is to be noted that the terms “first”, “second” and the like described herein are used to distinguish between similar objects and are not necessarily used to describe a particular order or sequence.
Embodiments of the present disclosure are mainly about the method for determining the priorities of multiple transmissions for in EN-DC, NE-DC, NN-DC or CA so as to prioritize certain transmissions and implement single transmit (single Tx), or some transmissions are sent with reduced power.
An embodiment of the present disclosure provides a channel or signal sending method.
In step S102, a first transmission sent on a first carrier or a first carrier group is scheduled, and a second transmission sent on a second carrier or a second carrier group is scheduled. Transmission time of the first transmission overlaps transmission time of the second transmission; if a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal sends the first transmission, and the sending of the second transmission is canceled or the second transmission is sent with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: 1) sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; 2) sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; 3) determining whether to send the first transmission or the second transmission by itself; 4) determining, according to higher layer signaling configured by a base station, whether to send the first transmission or the second transmission; or 5) determining, according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station, whether to send the first transmission or the second transmission.
According to the present disclosure, a first transmission sent on a first carrier or a first carrier group is scheduled, and a second transmission sent on a second carrier or a second carrier group is scheduled, where transmission time of the first transmission overlaps transmission time of the second transmission; if a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission can be sent within the transmission time of the first transmission, then a terminal sends the first transmission, and the sending of the second transmission is canceled or the second transmission is sent with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission can be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: 1) sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; 2) sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; 3) determining, by the terminal, whether to send the first transmission or the second transmission; 4) determining, according to higher layer signaling configured by a base station, whether to send the first transmission or the second transmission; or 5) determining, according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station, whether to send the first transmission or the second transmission. The scheme of how to determine the priorities of multiple transmission channels or signals when the sending of multiple transmissions overlapping in time domain resources cannot be ensured in downlink or uplink is provided.
In an embodiment of the present disclosure, the higher layer signaling is for the base station to instruct the terminal to perform at least one of the following operations: sending the first transmission and canceling sending of the second transmission; sending the second transmission and canceling sending of the first transmission; sending the first transmission and sending the second transmission with reduced power; or sending the second transmission and sending the first transmission with reduced power.
In an embodiment of the present disclosure, the rule 1 refers to that when the base station configures for the terminal that the first transmission is of transmission type 1 and the second transmission is of transmission type 2, the terminal performs at least one of the following operations: sending the first transmission and canceling the sending of the second transmission; sending the second transmission and canceling sending of the first transmission; sending the first transmission and sending the second transmission with reduced power; or sending the second transmission and sending the first transmission with reduced power.
In an embodiment of the present disclosure, the transmission type includes at least one of the followings: a PUCCH, a PUSCH, a PUSCH for multiplexing designated UCI, a PUSCH without multiplexing UCI, a PUCCH containing designated UCI, a PRACH, a sounding reference signal (SRS), a demodulation reference signal (DMRS), an ultra reliable and low latency communication (URLLC) PUCCH, a URLLC PUSCH, a URLLC PRACH, a URLLC SRS, a URLLC DMRS, an enhanced mobile broadband (eMBB) PUCCH, an eMBB PUSCH, an eMBB PRACH, an eMBB SRS or an eMBB DMRS.
In an embodiment of the present disclosure, the first carrier is an LTE carrier or the first carrier group is an LTE carrier group, and the second carrier an NR carrier or the second carrier group is an NR carrier group.
In an embodiment of the present disclosure, the method further includes the step below.
The terminal determines a priority of a transmission channel or signal according to at least one of the following pieces of information:
In an embodiment of the present disclosure, the method further includes at least one of the followings: the terminal sends an uplink transmission with a high priority or receives a downlink transmission with a high priority; the terminal cancels sending of an uplink transmission with a low priority or sends an uplink transmission with a low priority with reduced power; or the terminal cancels reception of a downlink transmission with a low priority or the terminal receives a downlink transmission with a low priority over a part of time-frequency resources of the transmission.
In an embodiment of the present disclosure, the method further includes the step below.
For a terminal supporting capability type 1, the terminal regards by default that the base station schedules an uplink transmission channel or signal sent on CG1, and transmission time of the uplink transmission channel or signal is a subset of time units in which the transmission direction configuration of CG1 is uplink.
In an embodiment of the present disclosure, the method further includes the step below.
For the terminal supporting capability type 1, the terminal regards by default that the base station schedules a downlink transmission channel or signal received on CG1, and transmission time of the downlink transmission channel or signal is a subset of time units in which the transmission direction configuration of CG1 is downlink. A time unit may refer to at least one of a radio frame, a subframe, a slot, a mini-subframe, a mini-slot or an orthogonal frequency division multiplexing (OFDM) symbol.
In an embodiment of the present disclosure, the method further includes the step below.
For a terminal supporting capability type 2, the terminal regards by default that the base station schedules an uplink transmission channel or signal sent on CG1, and transmission time of the uplink transmission channel or signal is an arbitrary time unit.
In an embodiment of the present disclosure, the method further includes the step below.
For the terminal supporting capability type 2, the terminal regards by default that the base station schedules a downlink transmission channel or signal received on CG1, and transmission time of the downlink transmission channel or signal is an arbitrary time unit.
In an embodiment of the present disclosure, the method further includes at least one of the followings: the terminal of capability type 1 is able to not support dynamic power allocation; or the terminal of capability type 2 is able to support dynamic power allocation or not support the dynamic power allocation.
In an embodiment of the present disclosure, the method further includes the step below.
The terminal receives a time domain pattern of a transmission priority semi-persistently configured by the base station through higher layer signaling, where the time domain pattern of the transmission priority is used for indicating a prioritization of multiple CGs in several consecutive or inconsecutive time units. The terminal acquires a prioritization of CGs in one or more time units according to the received time domain pattern of the transmission priority.
In an embodiment of the present disclosure, the method further includes the step below.
The terminal receives a time domain pattern of an uplink power threshold semi-persistently configured by the base station through higher layer signaling. The time domain pattern of the uplink power threshold is used for indicating which set of uplink power thresholds the terminal applies to each of several consecutive or inconsecutive time units.
To sum up, according to the scheme of the present disclosure, sending priorities of these transmissions or canceling priorities of these transmissions is determined to prioritize a downlink or uplink transmission with a high priority or cancel the sending of a downlink or uplink transmission with a low priority, thereby ensuring system performance. This application provides some methods to ensure sending the downlink or uplink transmission with a high priority or canceling the downlink or uplink transmission with a low priority.
From the description of the implementations above, those having ordinary skill in the art may know that the methods in the embodiments above may be implemented by software plus a necessary general-purpose hardware platform, or may be implemented by hardware certainly. However, in many cases, the former is a preferred implementation. Based on this understanding, the schemes provided by the present disclosure substantially, or the part contributing to the related art, may be embodied in the form of a software product. The computer software product is stored in a storage medium (such as a read-only memory (ROM)/random access memory (RAM), a magnetic disk or an optical disk), and the storage medium includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, a network device or the like) to perform the methods according to the various embodiments of the present disclosure.
This embodiment further provides a channel or signal sending apparatus. The apparatus is applied to a terminal and configured to implement the embodiments and alternative implementations above. What has been described is not repeated. As used below, the term “module” may implement a combination of software and/or hardware with predetermined functions. The apparatus in this embodiment below may be implemented by software, but an implementation by hardware or by a combination of software and hardware is also possible and conceived.
The determination module 20 is configured to schedule a first transmission sent on a first carrier or a first carrier group, and schedule a second transmission sent on a second carrier or a second carrier group. Transmission time of the first transmission overlaps transmission time of the second transmission. If a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal sends the first transmission, and the sending of the second transmission is canceled or the second transmission is sent with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: 1) sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; 2) sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; 3) determining whether to send the first transmission or the second transmission by the terminal itself; 4) determining whether to send the first transmission or the second transmission according to higher layer signaling configured by a base station; or 5) determining whether to send the first transmission or the second transmission according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station.
According to the present disclosure, a first transmission sent on a first carrier or a first carrier group is scheduled, and a second transmission sent on a second carrier or a second carrier group is scheduled, where transmission time of the first transmission overlaps transmission time of the second transmission; if a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal sends the first transmission, and the sending of the second transmission is canceled or the second transmission is sent with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: 1) sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; 2) sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; 3) determining whether to send the first transmission or the second transmission by the terminal itself; 4) determining whether to send the first transmission or the second transmission according to higher layer signaling configured by a base station; or 5) determining whether to send the first transmission or the second transmission according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station. The scheme of how to determine the priorities of multiple transmission channels or signals when the sending of multiple transmissions overlapping in time domain resources cannot be ensured in downlink or uplink is provided.
In an embodiment of the present disclosure, the higher layer signaling is for the base station to instruct the terminal to perform at least one of the following operations: sending the first transmission and canceling sending of the second transmission; sending the second transmission and canceling sending of the first transmission; sending the first transmission and sending the second transmission with reduced power; or sending the second transmission and sending the first transmission with reduced power.
In an embodiment of the present disclosure, rule 1 refers to that when the base station configures for the terminal that the first transmission is of transmission type 1 and the second transmission is of transmission type 2, the terminal performs at least one of the following operations: sending the first transmission and canceling sending of the second transmission; sending the second transmission and canceling sending of the first transmission; sending the first transmission and sending the second transmission with reduced power; or sending the second transmission and sending the first transmission with reduced power.
In an embodiment of the present disclosure, the transmission type includes at least one of the following: a PUCCH, a PUSCH, a PUSCH for multiplexing designated UCI, a PUSCH without multiplexing UCI, a PUCCH containing designated UCI, a PRACH, an SRS, a DMRS, a URLLC PUCCH, a URLLC PUSCH, a URLLC PRACH, a URLLC SRS, a URLLC DMRS, an eMBB PUCCH, an eMBB PUSCH, an eMBB PRACH, an eMBB SRS or an eMBB DMRS.
In an embodiment of the present disclosure, the first carrier is an LTE carrier or the first carrier group is an LTE carrier group, and the second carrier is an NR carrier or the second carrier group is an NR carrier group.
In an embodiment of the present disclosure, the terminal determines a priority of a transmission channel or signal according to at least one of the following pieces of information:
In an embodiment of the present disclosure, the terminal sends an uplink transmission with a high priority or receives a downlink transmission with a high priority; and/or, the terminal cancels sending of an uplink transmission with a low priority or sends an uplink transmission with a low priority with reduced power; and/or, the terminal cancels the reception of a downlink transmission with a low priority, or the terminal receives a downlink transmission with a low priority over a part of time-frequency resources of the transmission.
In an embodiment of the present disclosure, for a terminal supporting capability type 1, the terminal regards by default that the base station schedules an uplink transmission channel or signal sent on CG1, and transmission time of the uplink transmission channel or signal is a subset of time units in which the transmission direction configuration of CG1 is uplink.
In an embodiment of the present disclosure, for the terminal supporting capability type 1, the terminal regards by default that the base station schedules a downlink transmission channel or signal received on CG1, and transmission time of the downlink transmission channel or signal is a subset of time units in which the transmission direction configuration of CG1 is downlink. A time unit may refer to at least one of a radio frame, a subframe, a slot, a mini-subframe, a mini-slot or an OFDM symbol.
In an embodiment of the present disclosure, for a terminal supporting capability type 2, the terminal regards by default that the base station schedules an uplink transmission channel or signal sent on CG1m and transmission time of the uplink transmission channel or signal is an arbitrary time unit.
In an embodiment of the present disclosure, for the terminal supporting capability type 2, the terminal regards by default that the base station schedules a downlink transmission channel or signal received on CG1, and transmission time of the downlink transmission channel or signal is an arbitrary time unit.
In an embodiment of the present disclosure, the terminal of capability type 1 is able to not support dynamic power allocation; and the terminal of capability type 2 is able to support dynamic power allocation or not support the dynamic power allocation.
In an embodiment of the present disclosure, the terminal receives a time domain pattern of a transmission priority semi-persistently configured by the base station through higher layer signaling, where the time domain pattern of the transmission priority is used for indicating a prioritization of multiple CGs in several consecutive or inconsecutive time units. The terminal acquires a prioritization of CGs in one or more time units according to the received time domain pattern of the transmission priority.
In an embodiment of the present disclosure, the terminal receives a time domain pattern of an uplink power threshold semi-persistently configured by the base station through higher layer signaling. The time domain pattern of the uplink power threshold is used for indicating which set of uplink power thresholds the terminal applies to each of several consecutive or inconsecutive time units.
The scheme of embodiment one and the scheme of embodiment two above may be used in combination or separately. This is not limited in the embodiments of the present disclosure.
The preceding schemes are below in conjunction with alternative embodiments, which are not intended to limit the schemes in the embodiments of the present disclosure.
The DC is performed between CG1 and CG2. A system semi-persistently configures downlink-uplink pattern1 (DL-UL pattern1) and/or an offset in time for a terminal. DL-UL pattern1 and/or the offset in time indicates to the terminal which time units are available uplink time units of CG1, that is, the terminal may send uplink transmissions on CG1 over these time units.
The base station dynamically schedules or semi-persistently configures that the terminal sends uplink transmission1 (UT1) on CG1.
If the terminal does not need to send any uplink transmission on CG2 over a time domain resource corresponding to uplink transmission UT1 according to the semi-persistent configuration and/or scheduling of the base station, the terminal sends uplink transmission UT1 on CG1 according to the semi-persistent configuration or scheduling of the base station.
If the terminal needs to send uplink transmission UT2 on CG2 over time domain resource T1 corresponding to uplink transmission UT1 according to the semi-persistent configuration and/or scheduling of the base station, and time domain resource T2 corresponding to UT2 completely or partially overlaps time domain resource T1 corresponding to UT1, the terminal needs to determine the priority of uplink transmission UT1 and the priority of uplink transmission UT2 according to the following principles: if time domain resource T1 belongs to a subset of the available uplink time units of CG1 configured by DL-UL pattern1 and/or the offset in time, uplink transmission UT1 has a higher priority than uplink transmission UT2; if time domain resource T1 does not belong to the available uplink time units of CG1 configured by DL-UL pattern1 and/or the offset in time and may be an available downlink time unit, or a time unit with an uncertain transmission direction, or an unavailable uplink time unit of CG1 configured by DL-UL pattern1 and/or the offset in time, the following cases are included.
Case 1: uplink transmission UT1 has a lower priority than uplink transmission UT2.
Case 2: the prioritization of UT1 and UT2 is not specified but determined by the terminal according to the implementation of the terminal itself.
Case 3: the base station may semi-persistently or persistently configure whether UT1 has a higher priority than UT2 or UT2 has a higher priority than UT1 in this case.
Case 4: a determination needs to be made according to specific transmission types of UT1 and UT2. The transmission type includes at least one of the followings: a PUCCH, a PUSCH, a PUSCH for multiplexing certain UCI, a PUSCH without multiplexing UCI, a PUCCH containing certain UCI, a PRACH, an SRS, a DMRS, a URLLC PUCCH, a URLLC PUSCH, a URLLC PRACH, a URLLC SRS, a URLLC DMRS, an eMBB PUCCH, an eMBB PUSCH, an eMBB PRACH, an eMBB SRS, an eMBB DMRS or the like. A set of rules is predefined by the system or semi-persistently configured by the base station for the terminal. The rules indicate whether UT1 has a higher priority than UT2 or UT2 has a higher priority than UT1 when UT1 is channel type 1 and UT2 is channel type 2. Channel type 1 and channel type 2 each are one of channel types and may be the same or different.
The terminal prioritizes an uplink transmission with a high priority, and an uplink transmission with a low priority may be sent with reduced power or canceled. For example, if it is determined according to the preceding principles that UT1 on CG1 has a higher priority than UT2 on CG2, the terminal prioritizes the sending of UT1 on CG1, and the sending of UT2 on CG2 is either performed with reduced transmit power or canceled.
In this embodiment, CG1 is an LTE CG and CG2 is an NR CG; alternatively, CG1 is an NR CG and CG2 is an LTE CG; alternatively, CG1 is an NR CG and CG2 is also an NR CG; alternatively, at least one of CG1 or CG2 is in another system mode. A CG may include one or more carriers.
Alternative embodiment 1-1: an uplink resource is semi-persistently configured for CG1.
The DC is performed between CG1 and CG2. A system semi-persistently configures DL-UL pattern1 and/or an offset in time for the terminal. DL-UL pattern1 and/or the offset in time indicates to the terminal which time units are available uplink time units of CG1, that is, the terminal may send uplink transmissions on CG1 over these time units.
The base station semi-persistently configures or dynamically schedules that the terminal sends uplink transmission UT1 on CG1.
If the terminal does not need to send any uplink transmission on CG2 over the time domain resource corresponding to uplink transmission UT1 according to the semi-persistent configuration and/or scheduling of the base station, the terminal sends uplink transmission UT1 on CG1 according to the semi-persistent configuration or scheduling of the base station.
If the terminal needs to send uplink transmission UT2 on CG2 over time domain resource T1 corresponding to uplink transmission UT1 according to the semi-persistent configuration and/or scheduling of the base station, and time domain resource T2 corresponding to UT2 completely or partially overlaps time domain resource T1 corresponding to UT1, the terminal needs to determine according to the principles below whether to send uplink transmission UT1 and uplink transmission UT2.
If time domain resource T1 belongs to a subset of the available uplink time units of CG1 configured by DL-UL pattern1 and/or the offset in time, uplink transmission UT1 is sent, and sending of uplink transmission UT2 is canceled or uplink transmission UT2 is sent with reduced power.
If time domain resource T1 does not belong to the available uplink time units of CG1 configured by DL-UL pattern1 and/or the offset in time and may be an available downlink time unit, or a time unit with an uncertain transmission direction, or an unavailable uplink time unit of CG1 configured by DL-UL pattern1 and/or the offset in time, the following cases are included.
Case 1: uplink transmission UT1 is sent, and the sending of uplink transmission UT2 is canceled or uplink transmission UT2 is sent with reduced power.
Case 2: uplink transmission UT2 is sent, and the sending of uplink transmission UT1 is canceled or uplink transmission UT1 is sent with reduced power.
Case 3: sending of an uplink transmission on an MCG (where the uplink transmission may be UT1 or UT2), and canceling the sending of an uplink transmission on an SCG (where the uplink transmission may be UT2 or UT1) or sending of the uplink transmission on the SCG (where the uplink transmission may be UT2 or UT1) with reduced power are determined according to which one of CG1 or CG2 is the MCG.
Case 4: the terminal determines according to the implementation of the terminal itself whether to send uplink transmission UT1, and whether to cancel the sending of uplink transmission UT2 or whether to send uplink transmission UT2 with reduced power.
Case 5: the base station may semi-persistently or persistently configure whether to send uplink transmission UT1, and/or whether to cancel the sending of uplink transmission UT2, and/or whether to send uplink transmission UT2 with reduced power in this case.
Case 6: a determination needs to be made according to specific transmission types of UT1 and UT2. The transmission type includes at least one of the followings: a PUCCH, a PUSCH, a PUSCH for multiplexing certain UCI, a PUSCH without multiplexing UCI, a PUCCH containing certain UCI, a PRACH, an SRS, a DMRS, a URLLC PUCCH, a URLLC PUSCH, a URLLC PRACH, a URLLC SRS, a URLLC DMRS, an eMBB PUCCH, an eMBB PUSCH, an eMBB PRACH, an eMBB SRS, an eMBB DMRS or the like. A set of rules is predefined by the system or semi-persistently configured by the base station for the terminal. The rules indicate whether to send uplink transmission UT1, and/or whether to cancel the sending of uplink transmission UT2, and/or whether to send uplink transmission UT2 with reduced power when UT1 is channel type 1 and UT2 is channel type 2. Channel type 1 and channel type 2 each are one of channel types and may be the same or different.
In this embodiment, CG1 is an LTE CG and CG2 is an NR CG. A CG may include one or more carriers.
Alternative embodiment 1-2: an uplink resource is semi-persistently configured for CG1.
The DC is performed between CG1 and CG2. A system semi-persistently configures DL-UL pattern1 and/or an offset in time for a terminal. DL-UL pattern1 and/or the offset in time indicates to the terminal which time units are available uplink time units of CG1, that is, the terminal may send uplink transmissions on CG1 over these time units.
The base station dynamically schedules or semi-persistently configures that the terminal sends uplink transmission UT1 on CG1.
If the terminal does not need to send any uplink transmission on CG2 over a time domain resource corresponding to uplink transmission UT1 according to the semi-persistent configuration and/or scheduling of the base station, the terminal sends uplink transmission UT1 on CG1 according to the semi-persistent configuration or scheduling of the base station.
If the terminal needs to send uplink transmission UT2 on CG2 over time domain resource T1 corresponding to uplink transmission UT1 according to the semi-persistent configuration and/or scheduling of the base station, and time domain resource T2 corresponding to UT2 completely or partially overlaps time domain resource T1 corresponding to UT1, the terminal needs to determine according to the principles below whether to send uplink transmission UT1 and uplink transmission UT2.
If time domain resource T1 belongs to a subset of the available uplink time units of CG1 configured by DL-UL pattern1 and/or the offset in time, uplink transmission UT1 is sent, and sending of uplink transmission UT2 is canceled or uplink transmission UT2 is sent with reduced power.
If time domain resource T1 does not belong to the available uplink time units of CG1 configured by DL-UL pattern1 and/or the offset in time and may be an available downlink time unit, or a time unit with an uncertain transmission direction, or an unavailable uplink time unit of CG1 configured by DL-UL pattern1 and/or the offset in time, the following cases are included.
Case 1: uplink transmission UT1 is sent, and the sending of uplink transmission UT2 is canceled or uplink transmission UT2 is sent with reduced power.
Case 2: uplink transmission UT2 is sent, and the sending of uplink transmission UT1 is canceled or uplink transmission UT1 is sent with reduced power.
Case 3: sending of an uplink transmission on the MCG (where the uplink transmission may be UT1 or UT2), and canceling the sending of an uplink transmission on the SCG (where the uplink transmission may be UT2 or UT1) or sending of an uplink transmission on the SCG (where the uplink transmission may be UT2 or UT1) with reduced power are determined according to the one of CG1 or CG2 which is the MCG.
Case 4: the terminal determines according to the implementation of the terminal itself whether to send uplink transmission UT1, and whether to cancel the sending of uplink transmission UT2 or whether to send uplink transmission UT2 with reduced power.
Case 5: the base station may semi-persistently or persistently configure whether to send uplink transmission UT1, and/or whether to cancel the sending of uplink transmission UT2, and/or whether to send uplink transmission UT2 with reduced power in this case.
Case 6: a determination needs to be made according to specific transmission types of UT1 and UT2. The transmission type includes at least one of the followings: a PUCCH, a PUSCH, a PUSCH for multiplexing certain UCI, a PUSCH without multiplexing UCI, a PUCCH containing certain UCI, a PRACH, an SRS, a DMRS, a URLLC PUCCH, a URLLC PUSCH, a URLLC PRACH, a URLLC SRS, a URLLC DMRS, an eMBB PUCCH, an eMBB PUSCH, an eMBB PRACH, an eMBB SRS, an eMBB DMRS or the like. A set of rules is predefined by the system or semi-persistently configured by the base station for the terminal. The rules indicate whether to send uplink transmission UT1, and/or whether to cancel the sending of uplink transmission UT2, and/or whether to send uplink transmission UT2 with reduced power when UT1 is channel type 1 and UT2 is channel type 2. Channel type 1 and channel type 2 each are one of channel types and may be the same or different.
In this embodiment, CG1 is an LTE CG and CG2 is an NR CG; alternatively, CG1 is an NR CG and CG2 is an LTE CG; alternatively, CG1 is an NR CG and CG2 is also an NR CG; alternatively, at least one of CG1 or CG2 is in another system mode. A CG may include one or more carriers.
Alternative embodiment two: it is similar to alternative embodiment one and in view of downlink transmissions.
The DC is performed between CG1 and CG2. A system semi-persistently configures DL-UL pattern1 and/or an offset in time for a terminal. DL-UL pattern1 and/or the offset in time indicates to the terminal which time units are available downlink time units of CG1, that is, the terminal may receive downlink transmissions on CG1 over these time units.
A base station schedules that the terminal receives one downlink transmission DT1 on CG1.
If the terminal does not need to receive any downlink transmission on CG2 over a time domain resource corresponding to downlink transmission DT1, the terminal receives downlink transmission DT1 on CG1 according to the scheduling of the base station.
If the terminal needs to receive downlink transmission DT2 on CG2 over time domain resource T1 corresponding to downlink transmission DT1, and time domain resource T2 corresponding to DT2 completely or partially overlaps time domain resource T1 corresponding to DT1, the terminal needs to determine the priority of downlink transmission DT1 and the priority of downlink transmission DT2 according to the following principles: if time domain resource T1 belongs to a subset of the available downlink time units of CG1 configured by DL-UL pattern1 and/or the offset in time, downlink transmission DT1 has a higher priority than downlink transmission DT2; and if time domain resource T1 does not belong to the available downlink time units of CG1 configured by DL-UL pattern1 and/or the offset in time and may be an available uplink time unit, or a time unit with an uncertain transmission direction, or an unavailable downlink time unit of CG1 configured by DL-UL pattern1 and/or the offset in time, the following cases are included.
Case 1: downlink transmission DT1 has a lower priority than downlink transmission DT2.
Case 2: the prioritization of DT1 and DT2 is not specified but determined by the terminal according to the implementation of the terminal itself.
Case 3: a mode may be configured. The base station may semi-persistently or persistently configure whether DT1 has a higher priority than DT2 or DT2 has a higher priority than DT1 in this case.
Case 4: a determination needs to be made according to specific transmission channel types of DT1 and DT2. The transmission channel type includes at least one of the followings: a PDCCH, a PDSCH, a PDCCH using a certain downlink control information format size (DCI format size), a channel-state information-reference signal (CSI-RS), a DMRS, a URLLC PDCCH, a URLLC PDSCH, a URLLC PDCCH using a certain DCI format size, a URLLC CSI-RS, a URLLC DMRS, an eMBB PDCCH, an eMBB PDSCH, an eMBB PDCCH using a certain DCI format size, an eMBB CSI-RS, an eMBB DMRS or the like. A set of rules is predefined by the system or semi-persistently configured by the base station for the terminal. The rules indicate whether DT1 has a higher priority than DT2 or DT2 has a higher priority than DT1 when DT1 is of transmission channel type 1 and DT2 is of transmission channel type 2. Transmission channel type 1 and transmission channel type 2 each are one of the above transmission channel types and may be the same or different.
The terminal needs to ensure reception of a downlink transmission with a high priority. For a downlink transmission with a low priority, the terminal cancels reception of the downlink transmission or receives only a part of the downlink transmission. For example, if it is determined according to the preceding principles that DT1 on CG1 has a higher priority than DT2 on CG2, the terminal receives DT1 on CG1, and for DT2 on CG2, the terminal either cancels the reception or receive only the part of the transmission where CG2 does not overlap CG1.
In this embodiment, CG1 and CG2 may both be an LTE CG, an NR CG, or a CG supporting other radio technologies. A CG may include one or more carriers.
Alternative embodiment 2-1
The DC is performed between CG1 and CG2. A system semi-persistently configures DL-UL pattern1 and/or an offset in time for a terminal. DL-UL pattern1 and/or the offset in time indicates to the terminal which time units are available downlink time units of CG1, that is, the terminal may receive downlink transmissions on CG1 over these time units.
The base station schedules that the terminal receives one downlink transmission DT1 on CG1.
If the terminal does not need to receive any downlink transmission on CG2 over a time domain resource corresponding to downlink transmission DT1, the terminal receives downlink transmission DT1 on CG1 according to the scheduling of the base station.
If the terminal needs to receive downlink transmission DT2 on CG2 over time domain resource T1 corresponding to downlink transmission DT1, and time domain resource T2 corresponding to DT2 completely or partially overlaps time domain resource T1 corresponding to DT1, the terminal needs to determine according to the principles below whether to receive downlink transmission DT1 and downlink transmission DT2.
If time domain resource T1 belongs to a subset of the available downlink time units of CG1 configured by DL-UL pattern1 and/or the offset in time, the terminal receives downlink transmission DT1 and cancels the reception of downlink transmission DT2.
If time domain resource T1 does not belong to the available downlink time units of CG1 configured by DL-UL pattern1 and/or the offset in time and may be an available uplink time unit, or a time unit with an uncertain transmission direction, or an unavailable downlink time unit of CG1 configured by DL-UL pattern1 and/or the offset in time, the following cases are included.
Case 1: the terminal receives downlink transmission DT2, and the reception of downlink transmission DT1 is canceled or downlink transmission DT1 is received over a part of time domain resources where downlink transmission DT1 does not overlap DT2.
Case 2: the terminal receives downlink transmission DT1, and the reception of downlink transmission DT2 is canceled or downlink transmission DT2 is received over a part of time domain resources where downlink transmission DT2 does not overlap DT1.
Case 3: it is determined according to which one of CG1 or CG2 is the MCG that the terminal receives a downlink transmission on the MCG (where the downlink transmission may be DT1 or DT2), and that reception of a downlink transmission on the SCG (where the downlink transmission may be DT2 or DT1) is canceled or a downlink transmission on the SCG (where the downlink transmission may be DT2 or DT1) is received over a part of time domain resources.
Case 4: the terminal determines according to the implementation of the terminal itself whether to receive downlink transmission DT1 and downlink transmission DT2.
Case 5: a mode may be configured. The base station may semi-persistently or persistently configure whether the terminal receives downlink transmission DT1 or downlink transmission DT2 in this case.
Case 6: a determination needs to be made according to specific transmission channel types of DT1 and DT2. The transmission channel type includes at least one of the followings: a PDCCH, a PDSCH, a PDCCH using a certain DCI format size, a CSI-RS, a DMRS, a URLLC PDCCH, a URLLC PDSCH, a URLLC PDCCH using a certain DCI format size, a URLLC CSI-RS, a URLLC DMRS, an eMBB PDCCH, an eMBB PDSCH, an eMBB PDCCH using a certain DCI format size, an eMBB CSI-RS, an eMBB DMRS or the like. A set of rules is predefined by the system or semi-persistently configured by the base station for the terminal. The rules indicate whether the terminal receives downlink transmission DT1 or downlink transmission DT2 when DT1 is of transmission channel type 1 and DT2 is of transmission channel type 2. Transmission channel type 1 and transmission channel type 2 each are one of the above transmission channel types and may be the same or different.
In this embodiment, CG1 is an LTE CG and CG2 is an NR CG. A CG may include one or more carriers.
The DC is performed between CG1 and CG2. A system semi-persistently configures DL-UL pattern1 and/or an offset in time for a terminal. DL-UL pattern1 and/or the offset in time indicates to the terminal which time units are available downlink time units of CG1, that is, the terminal may receive downlink transmissions on CG1 over these time units.
A base station schedules that the terminal receives one downlink transmission DT1 on CG1.
If the terminal does not need to receive any downlink transmission on CG2 over a time domain resource corresponding to downlink transmission DT1, the terminal receives downlink transmission DT1 on CG1 according to the scheduling of the base station.
If the terminal needs to receive downlink transmission DT2 on CG2 over time domain resource T1 corresponding to downlink transmission DT1, and time domain resource T2 corresponding to DT2 completely or partially overlaps time domain resource T1 corresponding to DT1, the terminal needs to determine according to the principles below whether to receive downlink transmission DT1 and downlink transmission DT2.
If time domain resource T1 belongs to a subset of the available downlink time units of CG1 configured by DL-UL pattern1 and/or the offset in time, the terminal receives downlink transmission DT1, and the reception of downlink transmission DT2 is canceled.
If time domain resource T1 does not belong to the available downlink time units of CG1 configured by DL-UL pattern1 and/or the offset in time and may be an available uplink time unit, or a time unit with an uncertain transmission direction, or an unavailable downlink time unit of CG1 configured by DL-UL pattern1 and/or the offset in time, the following cases are included.
Case 1: the terminal receives downlink transmission DT2, and the reception of downlink transmission DT1 is canceled or downlink transmission DT1 is received over a part of time domain resources where downlink transmission DT1 does not overlap DT2.
Case 2: the terminal receives downlink transmission DT1, and the reception of downlink transmission DT2 is canceled or downlink transmission DT2 is received over a part of time domain resources where downlink transmission DT2 does not overlap DT1.
Case 3: it is determined according to which one of CG1 or CG2 is the MCG that the terminal receives a downlink transmission on the MCG (where the downlink transmission may be DT1 or
DT2), and that the reception of a downlink transmission on the SCG (where the downlink transmission may be DT2 or DT1) is canceled or the downlink transmission on the SCG (where the downlink transmission may be DT2 or DT1) is received over a part of time domain resources.
Case 4: the terminal determines according to the implementation of the terminal itself whether to receive downlink transmission DT1 and downlink transmission DT2.
Case 5: a mode may be configured. The base station may semi-persistently or persistently configure whether the terminal receives downlink transmission DT1 or downlink transmission DT2 in this case.
Case 6: a determination needs to be made according to specific transmission channel types of DT1 and DT2. The transmission channel type includes at least one of the followings: a PDCCH, a PDSCH, a PDCCH using a certain DCI format size, a CSI-RS, a DMRS, a URLLC PDCCH, a URLLC PDSCH, a URLLC PDCCH using a certain DCI format size, a URLLC CSI-RS, a URLLC DMRS, an eMBB PDCCH, an eMBB PDSCH, an eMBB PDCCH using a certain DCI format size, an eMBB CSI-RS, an eMBB DMRS or the like. A set of rules is predefined by the system or semi-persistently configured by the base station for the terminal. The rules indicate whether the terminal receives downlink transmission DT1 or downlink transmission DT2 when DT1 is of transmission channel type 1 and DT2 is of transmission channel type 2. Transmission channel type 1 and transmission channel type 2 each are one of the above transmission channel types and may be the same or different.
In this embodiment, CG1 and CG2 may both be an LTE CG, an NR CG, or a CG supporting other radio technologies. A CG may include one or more carriers.
Alternative embodiment three: whether a conflict between a transmission scheduled or semi-persistently configured on a CG and the transmission direction configuration of the CG is allowed depends on a UE type.
A terminal reports power allocation capabilities of the terminal for multiple CGs to a base station, such as capability one and capability one. According to the capabilities reported by terminals, the terminals are classified into different types. For example, a terminal supporting capability one is classified as a type-one terminal, and a terminal supporting capability two is classified as a type-two terminal. According to different types of terminals, it is determined whether the base station may schedule the terminal to send an uplink transmission over a specific time unit.
The base station semi-persistently configures DL-UL pattern1 and/or an offset in time for the terminal. DL-UL pattern1 and/or the offset in time indicates to the terminal which time units are available uplink time units of CG1, that is, the terminal may send uplink transmissions on CG1 over these time units.
The examples are described below.
For a terminal of capability type one, the transmission time for sending an uplink transmission on CG1 by such a terminal is semi-persistently configured or scheduled by the base station and needs to be a subset of the available uplink time units of CG1 configured by DL-UL pattern1 and/or the offset in time. For a time unit that is not configured by DL-UL pattern1 and/or the offset in time as an available uplink time unit of CG1, the base station does not schedule the terminal to send an uplink transmission on CG1 over this time unit; and similarly, the terminal does not regard that the base station schedules this time unit to the terminal for the terminal to send an uplink transmission on CG1 over the time unit.
For a terminal of capability type two, the transmission time for sending an uplink transmission on CG1 by such a terminal is semi-persistently configured or scheduled by the base station and may be in an arbitrary time unit; and similarly, the terminal also regards that the base station may schedule the terminal to send an uplink transmission on CG1 over an arbitrary time unit.
In this embodiment, CG1 and CG2 may both be an LTE CG, an NR CG, or a CG supporting other radio technologies. A CG may include one or more carriers.
Alternative embodiment four: in view of both CG1 and CG2, a set of priority patterns is configured.
A base station configures one or more sets of time domain patterns for a terminal. Each set of time domain patterns indicates over several consecutive or inconsecutive time units, which CG has a higher uplink transmission priority or which set of uplink transmission power thresholds is applied.
As shown in
Alternatively, as shown in
In this embodiment, the time domain pattern may be extra-configured higher layer signaling, or may also be a transmission direction indication for a certain CG which is configured by the base station for the terminal. When the time domain patter is the latter, the terminal may regard that in a time domain unit where the transmission direction indication is configured to be an uplink transmission direction or a flexible direction, an uplink transmission on this CG has a higher priority than other CGs; and that in a time domain unit where the transmission direction indication is a downlink transmission direction or a flexible direction, uplink transmissions on other CGs have a higher priority than this CG. This CG refers to a CG corresponding to the transmission direction indication.
A CG may include one or more carriers.
Alternative embodiment five: it is similar to alternative embodiment four and in view of downlink transmissions.
A base station configures one or more sets of time domain patterns for a terminal. Each set of time domain patterns indicates a downlink transmission on which CG has a high priority over consecutive or inconsecutive time units. For example, as shown in
According to a received time domain pattern, the terminal may know to prioritize reception of a downlink transmission on which CG when an overlapping downlink transmission in time domain exists between CG1 and CG2, the terminal prioritizes reception of a downlink transmission on a CG with a high priority; and for a downlink transmission on a CG with a low priority, the terminal cancels the reception or receive the downlink transmission merely over a part of transmission resources.
In this embodiment, the time domain pattern may be extra-configured higher layer signaling or a transmission direction indication for a certain CG which is configured by the base station for the terminal. When the time domain patter is the latter, the terminal may regard that in a time domain unit where the transmission direction indication is configured to be a downlink transmission direction or a flexible direction, a downlink transmission on this CG has a higher priority than other CGs; and that in a time domain unit where the transmission direction indication is an uplink transmission direction or a flexible direction, downlink transmissions on other CGs have a higher priority than this CG. This CG refers to a CG corresponding to the transmission direction indication.
A CG may include one or more carriers.
An embodiment of the present disclosure further provides a storage medium. The storage medium includes a stored program. When the stored program is executed, any one of the preceding methods is performed.
Alternatively, in this embodiment, the storage medium may be configured to store program codes for performing the steps below.
In S1, a first transmission sent on a first carrier or a first carrier group is scheduled, and a second transmission sent on a second carrier or a second carrier group is scheduled. Transmission time of the first transmission overlaps transmission time of the second transmission. If a transmission direction configuration of the first carrier or the first carrier group indicates that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal sends the first transmission, and the sending of the second transmission is canceled or the second transmission is sent with reduced power; and/or if a transmission direction configuration of the first carrier or the first carrier group does not indicate that an uplink transmission is able to be sent within the transmission time of the first transmission, a terminal performs at least one of the following modes: 1) sending the first transmission, and canceling the sending of the second transmission or sending the second transmission with reduced power; 2) sending the second transmission, and canceling the sending of the first transmission or sending the first transmission with reduced power; 3) determining whether to send the first transmission or the second transmission by the terminal itself; 4) determining whether to send the first transmission or the second transmission according to higher layer signaling configured by a base station; or 5) determining whether to send the first transmission or the second transmission according to a transmission type of the first transmission, a transmission type of the second transmission, and rule 1 configured by a base station.
Alternatively, in this embodiment, the storage medium may include, but is not limited to, a USB flash disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, an optical disk or another medium capable of storing program codes.
Alternatively, for the examples in this embodiment, reference may be made to the examples described in the embodiments and alternative implementations above. Details are not repeated here.
Each of the modules or steps in the embodiments above may be implemented by a universal computing apparatus. The modules or steps may be concentrated on a single computing apparatus or distributed on a network composed of multiple computing apparatuses. Alternatively, the modules or steps may be implemented by program codes executable by the computing apparatus so that the modules or steps may be stored in a storage apparatus and executed by the computing apparatus. Moreover, in some cases, the illustrated or described steps may be executed in sequences different from those described herein, or the modules or steps may be made into various integrated circuit modules separately, or multiple modules or steps therein may be made into a single integrated circuit module for implementation. In this way, the present disclosure is not limited to any specific combination of hardware and software.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201910157348.4 | Mar 2019 | CN | national |
This is a Continuation application of US patent application U.S. Ser. No. 17/434,433 which is a U.S. National Stage Application of International Patent Application No. PCT/CN2020/077210, filed on Feb. 28, 2020, which claims priority to Chinese patent application No. 201910157348.4 filed on Mar. 1, 2019, disclosures of which are incorporated herein by reference in their entireties.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 17434433 | Aug 2021 | US |
| Child | 18736728 | US |
