Dynamic full-duplex mode switching for sidelink
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may switch from a first sidelink (SL) full-duplex (FD) mode to a second SL FD mode based on at least one of a first SL discontinuous reception (DRX) pattern associated with the first UE or a second SL DRX pattern associated with the second UE. The UE may communicate in accordance with the second SL FD mode. Numerous other aspects are described.
1. A method of wireless communication performed by a first user equipment (UE), comprising:
switching from a first sidelink (SL) full-duplex (FD) mode to a second SL FD mode based on at least one of a first SL discontinuous reception (DRX) pattern associated with the first UE or a second SL DRX pattern associated with the second UE; and
communicating in accordance with the second SL FD mode, wherein the second SL FD mode comprises an SL FD ON mode in which an FD capability of the first UE is activated, wherein the SL FD ON mode corresponds to an FD ON duration, and wherein the FD ON duration is based on at least one of a first DRX ON duration of the first SL DRX pattern or a second DRX ON duration of the second SL DRX pattern.
2. The method of claim 1 , wherein the FD ON duration at least partially overlaps the second DRX ON duration.
3. The method of claim 1 , wherein the FD ON duration is aligned with the second DRX ON duration.
4. The method of claim 3 , wherein the FD ON duration at least partially overlaps a third DRX ON duration in which an FD capability of a third UE is activated.
5. The method of claim 1 , wherein the FD ON duration at least partially overlaps the first DRX ON duration.
6. The method of claim 1 , wherein the FD ON duration is aligned with the first DRX ON duration.
7. The method of claim 1 , wherein the FD ON duration does not overlap the first DRX ON duration.
8. The method of claim 1 , wherein the FD ON duration is aligned with an intersection of the first DRX ON duration and the second DRX ON duration.
9. The method of claim 8 , wherein the FD ON duration is aligned with an intersection of the first DRX ON duration, the second DRX ON duration, and a third DRX ON duration in which an FD capability of a third UE is activated.
10. The method of claim 1 , wherein the FD ON duration is aligned with at least one additional FD ON duration in which an FD capability of at least one of the second UE or a third UE is activated.
11. The method of claim 10 , wherein communicating in accordance with the second SL FD mode comprises communicating in a unicast session with the second UE.
12. The method of claim 1 , wherein communicating in accordance with the second SL FD mode comprises transmitting an SL communication to the second UE, the method further comprising transmitting an indication of the second SL DRX pattern to the second UE.
13. The method of claim 12 , wherein communicating in accordance with the second SL FD mode comprises communicating in a unicast session with the second UE, the method further comprising determining an FD DRX pattern associated with the first UE.
14. The method of claim 1 , wherein communicating in accordance with the second SL FD mode comprises transmitting an SL communication to the second UE, and wherein an inactivity timer extends a length of a DRX ON duration of the second SL DRX pattern, the method further comprising extending a length of an SL FD ON duration based on the inactivity timer.
15. The method of claim 1 , wherein the second SL FD mode comprises an SL FD ON mode in which an FD capability of the first UE is activated, wherein the SL FD ON mode corresponds to a first FD ON duration associated with the first UE, wherein the SL FD ON mode is aligned with an intersection of a plurality of DRX ON durations associated with a plurality of additional UEs that includes the second UE, and wherein an inactivity timer extends a length of a DRX ON duration of the plurality of DRX ON durations, the method further comprising extending a length of the first SL FD ON duration to be aligned with a DRX active time associated with at least one of the second UE or the plurality of additional UEs that overlaps with a DRX active time associated with the first UE.
16. A first user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
switch from a first sidelink (SL) full-duplex (FD) mode to a second SL FD mode based on at least one of a first SL discontinuous reception (DRX) pattern associated with the first UE or a second SL DRX pattern associated with the second UE; and
communicate in accordance with the second SL FD mode, wherein the second SL FD mode comprises an SL FD ON mode in which an FD capability of the first UE is activated, wherein the SL FD ON mode corresponds to an FD ON duration, and wherein the FD ON duration is based on at least one of a first DRX ON duration of the first SL DRX pattern or a second DRX ON duration of the second SL DRX pattern.