Method and apparatus for sidelink DRX alignment
Embodiments of the present application relate to a method and apparatus for sidelink DRX alignment. An exemplary method includes: obtaining configuration information indicating at least one DRX configuration for a data, wherein the at least one DRX configuration is associated with a first resource pool; and transmitting or receiving the data based on the at least one DRX configuration indicated by the configuration information. Embodiments of the present application can minimize the power consumption of the UEs as well as ensuring the data transmission among the UEs.
1 . A method performed by a user equipment (UE), the method comprising:
obtaining configuration information indicating a sidelink discontinuous reception (DRX) configuration associated with a sidelink radio bearer, wherein the sidelink DRX configuration comprises an active time associated with a transmission or a reception of data on a sidelink;
selecting, during a logical channel prioritization (LCP) procedure and based at least in part on the data being related to the sidelink radio bearer, a destination based at least in part on the UE being within the active time of the sidelink DRX configuration; and
performing the transmission of the data on the sidelink based at least in part on the sidelink DRX configuration and the destination.
2 . The method of claim 1 , wherein the configuration information is at least one of preconfigured in the UE, broadcast in a system information block (SIB), or received via a radio resource control (RRC) signaling.
3 . The method of claim 1 , wherein the sidelink DRX configuration comprises at least one of:
an on-duration time;
an off-duration time;
a wake-up time;
one or more timers associated with a DRX;
a DRX cycle; or
a DRX offset value.
4 . The method of claim 1 , wherein the configuration information indicates the sidelink DRX configuration is associated with one or more destination identities (IDs) or one or more sidelink radio bearers comprising the sidelink radio bearer.
5 . The method of claim 1 , wherein the configuration information comprises a plurality of sidelink DRX configurations associated with a transmission resource pool, and wherein the method further comprises:
duplicating the data; and
transmitting the duplicated data in a wake-up time of each sidelink DRX configuration of the plurality of sidelink DRX configurations.
6 . The method of claim 1 , wherein the sidelink DRX configuration indicates a time-frequency resource for the data, wherein the time-frequency resource is a part of a resource pool, and wherein the method further comprises transmitting the data on the time-frequency resource.
7 . The method of claim 1 , wherein the sidelink DRX configuration comprises at least one of:
a first parameter comprising a bitmap that indicates a time domain resource within a resource pool;
a second parameter comprising a frequency domain resource within the resource pool; or
a third parameter comprising a resource selection window for the resource pool.
8 . The method of claim 7 , wherein the sidelink DRX configuration indicates an additional resource pool different from the resource pool, and wherein the method further comprises transmitting the data based at least in part on the additional resource pool.
9 . The method of claim 1 , wherein the configuration information indicates a mapping relationship between the sidelink DRX configuration and at least one destination identity (ID).
10 . A user equipment (UE) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and operable to cause the UE to:
obtain configuration information indicating a sidelink discontinuous reception (DRX) configuration associated with a sidelink radio bearer, wherein the sidelink DRX configuration comprises an active time associated with transmission or reception of data on a sidelink;
select, during a logical channel prioritization (LCP) procedure and based at least in part on the data being related to the sidelink radio bearer, a destination based at least in part on the UE being within the active time of the sidelink DRX configuration; and
perform the transmission of the data on the sidelink based at least in part on the sidelink DRX configuration and the destination.
11 . A network equipment (NE) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and operable to cause the NE to transmit configuration information indicating a sidelink discontinuous reception (DRX) configuration associated with a sidelink radio bearer, wherein the sidelink DRX configuration comprises an active time associated with a transmission or a reception of data on a sidelink, wherein a destination is selected during a logical channel prioritization (LCP) procedure based at least in part on a user equipment (UE) being within the active time of the sidelink DRX configuration and based at least in part on the data being related to the sidelink radio bearer.
12 . The NE of claim 11 , wherein:
the sidelink DRX configuration comprises at least one of an on-duration time, an off-duration time, a wake-up time, one or more timers associated with a DRX, a DRX cycle, or a DRX offset value; and
the configuration information indicates that the sidelink DRX configuration is associated with one or more destination identities (IDs) or one or more sidelink radio bearers comprising the sidelink radio bearer.
13 . The NE of claim 11 , wherein the configuration information comprises a plurality of sidelink DRX configurations associated with a transmission resource pool.
14 . The NE of claim 11 , wherein the sidelink DRX configuration indicates a time-frequency resource for the transmission of the data, and wherein the time-frequency resource is a part of a resource pool.
15 . The UE of claim 10 , wherein the configuration information is at least one of preconfigured in the UE, broadcast in a system information block (SIB), or received via a radio resource control (RRC) signaling.
16 . The UE of claim 10 , wherein:
the sidelink DRX configuration comprises at least one of an on-duration time, an off-duration time, a wake-up time, one or more timers associated with a DRX, a DRX cycle, or a DRX offset value; and
the configuration information indicates that the sidelink DRX configuration is associated with one or more destination identities (IDs) or one or more sidelink radio bearers.
17 . The UE of claim 10 , wherein the configuration information comprises a plurality of sidelink DRX configurations associated with a transmission resource pool, and wherein the at least one processor is further operable to cause the UE to:
duplicate the data; and
transmit the duplicated data in a wake-up time of each sidelink DRX configuration of the plurality of sidelink DRX configurations.
18 . The UE of claim 10 , wherein the sidelink DRX configuration indicates a time-frequency resource for the data, wherein the time-frequency resource is a part of a resource pool, and wherein the at least one processor is further operable to cause the UE to one of:
transmit the data on the time-frequency resource; or
receive the data on the time-frequency resource.
19 . The UE of claim 10 , wherein the sidelink DRX configuration comprises at least one of:
a first parameter comprising a bitmap that indicates a time domain resource within a resource pool;
a second parameter comprising a frequency domain resource within the resource pool; or
a third parameter comprising a resource selection window for the resource pool.
20 . A method performed by a network equipment (NE), the method comprising transmitting configuration information indicating a sidelink discontinuous reception (DRX) configuration associated with a sidelink radio bearer, wherein the sidelink DRX configuration comprises an active time associated with transmission or reception of data on a sidelink, wherein a destination is selected during a logical channel prioritization (LCP) procedure based at least in part on a user equipment (UE) being within the active time of the sidelink DRX configuration and based at least in part on the data being related to the sidelink radio bearer.