Power saving techniques for network-controlled repeaters
A network-controlled repeater (NCR) may receive configuration information from a base station to configure one or more receive (Rx) beams and corresponding time-domain resources for potential reception from one or more user equipments (UEs). The NCR may monitor for reception of a physical uplink channel or signal from the one or more UEs on the configured one or more Rx beams on the corresponding time-domain resources and determine that the physical uplink channel or signal is not received for at least a threshold amount of time. Additionally, the NCR may determine to refrain from at least one of additional monitoring for reception of the physical uplink channel or signal from the one or more UEs or transmission of one or more synchronization signal block (SSBs) to the one or more UEs for a duration of time.
1. An apparatus, comprising:
at least one processor configured to cause a base station (BS) to:
transmit, to a network controlled repeater (NCR), configuration information to configure one or more receive (Rx) beams and corresponding time-domain resources, wherein:
the configuration information comprises at least one of a threshold amount of time or a duration of time,
the threshold amount of time corresponds to the NCR's monitoring for a physical uplink channel or signal from one or more user equipments (UEs) on the one or more Rx beams on the corresponding time-domain resources, and
the duration of time corresponds to the NCR's refraining from at least one of additional monitoring for reception of the physical uplink channel or signal from the one or more UEs or transmission of one or more synchronization signal block (SSBs) to the one or more UEs;
receive, from the NCR, a request message to adjust at least one of the threshold amount of time or duration of time; and
transmit, to the NCR, additional configuration information including at least one of an updated threshold amount of time or an updated duration of time.
2. The apparatus of claim 1 ,
wherein the request message includes a request for the BS to perform at least one of:
a procedure to disable at least one of one or more transmitters or one or more receivers of the NCR; or
a procedure to update a pattern of ON and OFF states for the NCR.
3. The apparatus of claim 1 , wherein the at least one processor is further configured to cause the BS to:
receive, from the NCR, signaling indicating that the NCR will disable at least one of one or more transmitters of the NCR or one or more receivers of the NCR.
4. The apparatus of claim 1 , wherein the at least one processor is further configured to cause the BS to:
transmit, to the NCR, side control information, wherein the side control information is usable by the NCR for determination of at least one of not to encode or decode signaling for a duration of time.
5. The apparatus of claim 4 ,
wherein the side control information is transmitted via a physical downlink control channel (PDCCH).
6. The apparatus of claim 4 ,
wherein the side control information comprises configuration information included as part of at least one of downlink control information (DCI), medium access control-control element (MAC-CE), or a system information block (SIB).
7. The apparatus of claim 4 , wherein the at least one processor is further configured to cause the BS to:
receive, from the NCR, a request for adjustment of a monitoring periodicity of a physical downlink control channel (PDCCH) carrying the side control information.
8. The apparatus of claim 1 , wherein the at least one processor is further configured to cause the BS to:
transmit, to the NCR, capability signaling indicating support of configuring the NCR for at least one of enabling or disabling at least one of one or more transmitters of the NCR or one or more receivers of the NCR or transmitting side control information with an adjusted periodicity.
9. A network controlled repeater (NCR), comprising:
transceiver circuitry configured to perform cellular communication with at least one base station (BS) and one or more user equipments (UEs) using at least one radio access technology (RAT);
one or more processors coupled to the transceiver circuitry, wherein the one or more processors are configured to cause the NCR to:
receive, from the at least one BS, configuration information to configure one or more receive (Rx) beams and corresponding time-domain resources, wherein:
the configuration information comprises at least one of a threshold amount of time or a duration of time,
the threshold amount of time corresponds to the NCR's monitoring for a physical uplink channel or signal from one or more user equipments (UEs) on the one or more Rx beams on the corresponding time-domain resources, and
the duration of time corresponds to the NCR's refraining from at least one of additional monitoring for reception of the physical uplink channel or signal from the one or more UEs or transmission of one or more synchronization signal block (SSBs) to the one or more UEs;
transmit, to the at least one BS, a request to adjust at least one of the threshold amount of time or duration of time; and
receive, from the at least one BS, additional configuration information including at least one of an updated threshold amount of time or an updated duration of time.
10. The NCR of claim 9 ,
wherein the one or more processors are further configured to cause the NCR to:
receive, from the BS, capability signaling indicating support of configuring the NCR for at least one of enabling or disabling at least one of one or more transmitters or one or more receivers.
11. The NCR of claim 9 ,
wherein the request indicates for the BS to perform at least one of:
a procedure to disable at least one of one or more transmitters or one or more receivers of the NCR; or
a procedure to update a pattern of active and inactive states for the transceiver circuitry of the NCR.
12. The NCR of claim 9 , wherein the one or more processors are further configured to cause the NCR to:
transmit, to the BS, signaling indicating that the NCR will disable at least one of one or more transmitters of the NCR or one or more receivers of the NCR.
13. A method, comprising:
transmitting, to a network controlled repeater (NCR), configuration information to configure one or more receive (Rx) beams and corresponding time-domain resources, wherein:
the configuration information comprises at least one of a threshold amount of time or a duration of time,
the threshold amount of time corresponds to the NCR's monitoring for a physical uplink channel or signal from one or more user equipments (UEs) on the one or more Rx beams on the corresponding time-domain resources, and
the duration of time corresponds to the NCR's refraining from at least one of additional monitoring for reception of the physical uplink channel or signal from the one or more UEs or transmission of one or more synchronization signal block (SSBs) to the one or more UEs;
receiving, from the NCR, a request message to adjust at least one of the threshold amount of time or duration of time; and
transmitting, to the NCR, additional configuration information including at least one of an updated threshold amount of time or an updated duration of time.
14. The method of claim 13 ,
wherein the request message includes a request to perform at least one of:
a procedure to disable at least one of one or more transmitters or one or more receivers of the NCR; or
a procedure to update a pattern of ON and OFF states for the NCR.
15. The method of claim 13 , further comprising:
receiving, from the NCR, signaling indicating that the NCR will disable at least one of one or more transmitters of the NCR or one or more receivers of the NCR.
16. The method of claim 13 , further comprising
transmitting, to the NCR, side control information, wherein the side control information is usable by the NCR for determination of at least one of not to encode or decode signaling for a duration of time.
17. The method of claim 16 ,
wherein the side control information is transmitted via a physical downlink control channel (PDCCH).
18. The method of claim 16 ,
wherein the side control information comprises configuration information included as part of at least one of downlink control information (DCI), medium access control-control element (MAC-CE), or a system information block (SIB).
19. The method of claim 16 , further comprising:
receive, from the NCR, a request for adjustment of a monitoring periodicity of a physical downlink control channel (PDCCH) carrying the side control information.
20. The method of claim 13 , further comprising:
transmitting, to the NCR, capability signaling indicating support of configuring the NCR for at least one of enabling or disabling at least one of one or more transmitters of the NCR or one or more receivers of the NCR or transmitting side control information with an adjusted periodicity.