Scan range modification with adaptive frequency band usage for multi-band antenna panels
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a capability message indicating a capability to support a set of frequency bands for wireless communications with an antenna panel. Based on the capability, the UE may receive a first control message from a network entity indicating a portion of the set of frequency bands to use for further wireless communications based on the network entity determining an interference between a set of UEs including the UE and the UE satisfying a threshold interference value. The set of frequency bands may relate to a beamforming scan range. As such, the UE may transmit further wireless communications via a frequency band of the portion of the set of frequency bands based on the first control message and the beamforming scan range.
1 . An apparatus for wireless communication at a user equipment (UE), comprising:
at least one processor; and
memory coupled with the at least one processor, the memory storing instructions for the at least one processor to cause the UE to:
transmit a capability message indicating a capability of the UE to support a plurality of frequency bands for wireless communications with an antenna panel;
receive, based at least in part on the capability, a first control message indicating a portion of the plurality of frequency bands to use for the wireless communications, the plurality of frequency bands corresponding to a beamforming scan range, and wherein the portion of the plurality of frequency bands corresponds to a reduction of the beamforming scan range; and
transmit, based at least in part on the reduction of the beamforming scan range, the wireless communications via a frequency band of the portion of the plurality of frequency bands.
2 . The apparatus of claim 1 , wherein the instructions are for the at least one processor to further cause the UE to:
transmit an indication of an interference between a plurality of UEs comprising the UE in the capability message, the interference associated with one or more grating lobes, one or more side lobes, or both corresponding to the antenna panel.
3 . The apparatus of claim 2 , wherein the plurality of UEs are associated with a same cell.
4 . The apparatus of claim 2 , wherein the plurality of UEs are associated with a plurality of different cells.
5 . The apparatus of claim 1 , wherein the instructions are for the at least one processor to further cause the UE to:
transmit an indication of a transmission configuration indicator (TCI) state corresponding to the UE, wherein the portion of the plurality of frequency bands and the beamforming scan range is based at least in part on the indication of the TCI state corresponding to the UE.
6 . The apparatus of claim 1 , wherein the instructions are for the at least one processor to further cause the UE to:
receive a second control message indicating for the UE to switch from a first beam to a second beam with a beamwidth within the beamforming scan range for transmitting the wireless communications based at least in part on receiving the first control message, wherein the second beam corresponds to a reduction in interference from the first beam.
7 . The apparatus of claim 1 , wherein the first control message indicating the portion of the plurality of frequency bands comprises an indication of respective frequency bands of the portion of the plurality of frequency bands.
8 . The apparatus of claim 1 , wherein the first control message indicating the portion of the plurality of frequency bands comprises a frequency range comprising the portion of the plurality of frequency bands.
9 . The apparatus of claim 1 , wherein the first control message is a broadcast message to a plurality of UEs comprising the UE.
10 . A method for wireless communication at a user equipment (UE), comprising:
transmitting a capability message indicating a capability of the UE to support a plurality of frequency bands for wireless communications with an antenna panel;
receiving, based at least in part on the capability, a first control message indicating a portion of the plurality of frequency bands to use for the wireless communications, the plurality of frequency bands corresponding to a beamforming scan range, and wherein the portion of the plurality of frequency bands corresponds to a reduction of the beamforming scan range; and
transmitting, based at least in part on the reduction of the beamforming scan range, the wireless communications via a frequency band of the portion of the plurality of frequency bands.
11 . The method of claim 10 , further comprising:
transmitting an indication of an interference between a plurality of UEs comprising the UE in the capability message, the interference associated with one or more grating lobes, one or more side lobes, or both corresponding to the antenna panel.
12 . The method of claim 11 , wherein the plurality of UEs are associated with a same cell.
13 . The method of claim 11 , wherein the plurality of UEs are associated with a plurality of different cells.
14 . The method of claim 10 , further comprising:
transmitting an indication of a transmission configuration indicator (TCI) state corresponding to the UE, wherein the portion of the plurality of frequency bands and the beamforming scan range is based at least in part on the indication of the TCI state corresponding to the UE.
15 . The method of claim 10 , further comprising:
receiving a second control message indicating for the UE to switch from a first beam to a second beam with a beamwidth within the beamforming scan range for transmitting the wireless communications based at least in part on receiving the first control message, wherein the second beam corresponds to a reduction in interference from the first beam.
16 . The method of claim 10 , wherein the first control message is a broadcast message to a plurality of UEs comprising the UE.
17 . A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by one or more processors to:
transmit a capability message indicating a capability of the UE to support a plurality of frequency bands for wireless communications with an antenna panel;
receive, based at least in part on the capability, a first control message indicating a portion of the plurality of frequency bands to use for the wireless communications, the plurality of frequency bands corresponding to a beamforming scan range, and wherein the portion of the plurality of frequency bands corresponds to a reduction of the beamforming scan range; and
transmit, based at least in part on the reduction of the beamforming scan range, the wireless communications via a frequency band of the portion of the plurality of frequency bands.
18 . The non-transitory computer-readable medium of claim 17 , wherein the instructions are further executable by the one or more processors to:
transmit an indication of an interference between a plurality of UEs comprising the UE in the capability message, the interference associated with one or more grating lobes, one or more side lobes, or both corresponding to the antenna panel.
19 . The non-transitory computer-readable medium of claim 17 , wherein the instructions are further executable by the one or more processors to:
transmit an indication of a transmission configuration indicator (TCI) state corresponding to the UE, wherein the portion of the plurality of frequency bands and the beamforming scan range is based at least in part on the indication of the TCI state corresponding to the UE.
20 . The non-transitory computer-readable medium of claim 17 , wherein the instructions are further executable by the one or more processors to:
receive a second control message indicating for the UE to switch from a first beam to a second beam with a beamwidth within the beamforming scan range for transmitting the wireless communications based at least in part on receiving the first control message, wherein the second beam corresponds to a reduction in interference from the first beam.