Known transmission control indicator duration
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may start, from a last transmission of a reference signal resource, a known transmission control indicator (TCI) duration during which a TCI state switch command is to be received. The known TCI duration may end after a maximum time duration and may exclude an invalid period. The UE may receive the TCI state switch command during the known TCI duration. Numerous other aspects are described.
1 . A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to cause the UE to:
start, from a last transmission of a reference signal resource, a known transmission control indicator (TCI) duration during which a TCI state switch command is to be received, wherein the known TCI duration ends after a maximum time duration and excludes an invalid period, and wherein the known TCI duration is started in response to the last transmission of the reference signal resource occurring during a valid measurable occasion; and
receive the TCI state switch command during the known TCI duration.
2 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to extend the maximum time duration based at least in part on a duration of the invalid period.
3 . The UE of claim 1 , wherein the invalid period includes one or more of a discontinuous reception off period, a period outside of an active time for the UE, a period for a measurement gap, or a period for radio frequency tuning.
4 . The UE of claim 1 , wherein the maximum time duration is indicated by a network entity.
5 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to transmit an indication of a UE capability for the maximum time duration.
6 . The UE of claim 1 , wherein reference signal resources are received in periodic occasions, and wherein the one or more processors are configured to cause the UE to refrain from starting the known TCI duration in instances where the last transmission of the reference signal is received during an invalid period.
7 . A network entity for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to cause the network entity to:
start, from a last transmission of a reference signal resource to a user equipment (UE), a known transmission control indicator (TCI) duration during which a TCI state switch command is to be received by the UE, wherein the known TCI duration ends after a maximum time duration and excludes an invalid period, and wherein the known TCI duration is started in response to the last transmission of the reference signal resource to the UE occurring during a valid measurable occasion; and
transmit the TCI state switch command to the UE during the known TCI duration.
8 . The network entity of claim 7 , wherein the maximum time duration is extended based at least in part on a duration of the invalid period.
9 . The network entity of claim 7 , wherein the invalid period includes one or more of a discontinuous reception off period, a period outside of an active time for the UE, a period for a measurement gap, or a period for radio frequency tuning.
10 . The network entity of claim 7 , wherein the one or more processors are configured to cause the network entity to transmit an indication of the maximum time duration to the UE.
11 . The network entity of claim 7 , wherein the one or more processors are configured to cause the network entity to:
receive a UE capability for the maximum time duration; and
transmit an indication of the maximum time duration to the UE that is based at least in part on the UE capability.
12 . A method of wireless communication performed by a user equipment (UE), comprising:
starting, from a last transmission of a reference signal resource, a known transmission control indicator (TCI) duration during which a TCI state switch command is to be received, wherein the known TCI duration ends after a maximum time duration and excludes an invalid period, and wherein the known TCI duration is started in response to the last transmission of the reference signal resource occurring during a valid measurable occasion; and
receiving the TCI state switch command during the known TCI duration.
13 . The method of claim 12 , further comprising extending the maximum time duration based at least in part on a duration of the invalid period.
14 . The method of claim 12 , wherein the invalid period includes one or more of a discontinuous reception off period, a period outside of an active time for the UE, a period for a measurement gap, or a period for radio frequency tuning.
15 . The method of claim 12 , wherein the maximum time duration is indicated by a network entity.
16 . The method of claim 12 , further comprising transmitting an indication of a UE capability for the maximum time duration.
17 . The method of claim 12 , wherein reference signal resources are received in periodic occasions, and wherein the method further comprises refraining from starting the known TCI duration in instances where the last transmission of the reference signal is received during an invalid period.
18 . A method of wireless communication performed by a network entity, comprising:
starting, from a last transmission of a reference signal resource to a user equipment (UE), a known transmission control indicator (TCI) duration during which a TCI state switch command is to be received by the UE, wherein the known TCI duration ends after a maximum time duration and excludes an invalid period, and wherein the known TCI duration is started in response to the last transmission of the reference signal resource to the UE occurring during a valid measurable occasion; and
transmitting the TCI state switch command to the UE during the known TCI duration.
19 . The method of claim 18 , wherein the maximum time duration is extended based at least in part on a duration of the invalid period.
20 . The method of claim 18 , wherein the invalid period includes one or more of a discontinuous reception off period, a period outside of an active time for the UE, a period for a measurement gap, or a period for radio frequency tuning.
21 . The method of claim 18 , further comprising transmitting an indication of the maximum time duration to the UE.
22 . The method of claim 18 , further comprising:
receiving a UE capability for the maximum time duration; and
transmitting an indication of the maximum time duration to the UE that is based at least in part on the UE capability.
23 . The UE of claim 1 , wherein the one or more processors are configured to transmit a beam report during the known TCI duration.
24 . The UE of claim 1 , wherein the one or more processors are configured to switch to the TCI state indicated by the TCI state switch command.