# US 2021/0243750 A1 · Techniques for indicating a user equipment capability for simultaneous beam update across multiple component carriers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243750 A1 - Document ID: US20210243750A1 - Status: Published application - Kind: A1 - Application number: 16/949,975 - Filed: 2020-11-23 - Published: 2021-08-05 - Earliest claimed: 2020-01-31 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jung Ho RYU; Yan ZHOU; Tao LUO - Web page: https://patentgrep.com/patent/US20210243750A1 ## CPC - H04B 7/0628: {Diversity capabilities} - H04W 72/51: based on terminal or device properties - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04B 7/088: {using beam selection} - H04B 7/2643: {using time-division multiple access [TDMA] (H04B7/2615, H04B7/2618 take precedence)} - H04W 72/044: based on the type of the allocated resource - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/0623: {Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information} - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, information indicating a capability of the UE to support a simultaneous beam update across multiple component carriers. The UE may receive, from the base station, a beam update command identifying a component carrier configured for the UE based at least in part on the capability of the UE to support the simultaneous beam update across multiple component carriers. The UE may apply the beam update command to one or more component carriers based at least in part on the component carrier identified in the beam update command. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a user equipment (UE), comprising: transmitting, to a base station, information indicating a capability of the UE to support a simultaneous beam update across multiple component carriers; receiving, from the base station, a beam update command identifying a component carrier configured for the UE based at least in part on the capability of the UE to support the simultaneous beam update across multiple component carriers; and applying the beam update command to one or more component carriers based at least in part on the component carrier identified in the beam update command. ### Claim 2 (depends on 1) The method of claim 1, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous transmission configuration indication (TCI) state update across multiple component carriers. ### Claim 3 (depends on 2) The method of claim 2, wherein the beam update command identifies a TCI state to be simultaneously activated across multiple component carriers for a downlink receive beam associated with one or more of a physical downlink control channel or a physical downlink shared channel based at least in part on the UE supporting the simultaneous TCI state update across multiple component carriers. ### Claim 4 (depends on 2) The method of claim 2, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates a maximum number of component carrier lists that can be configured for the UE to support the simultaneous TCI state update across multiple component carriers. ### Claim 5 (depends on 1) The method of claim 1, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous spatial relation update for an uplink transmit beam across multiple component carriers. ### Claim 6 (depends on 5) The method of claim 5, wherein the beam update command identifies a spatial relation to be simultaneously activated across multiple component carriers for an uplink transmit beam associated with one or more of an aperiodic or semi-periodic sounding reference signal based at least in part on the UE supporting the simultaneous spatial relation update across multiple component carriers. ### Claim 7 (depends on 5) The method of claim 5, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates a maximum number of component carrier lists that can be configured for the UE that support the simultaneous spatial relation update across multiple component carriers. ### Claim 8 (depends on 5) The method of claim 5, wherein the information indicating whether the UE supports the simultaneous spatial relation update across multiple component carriers applies only to component carriers associated with one or more of a millimeter wave frequency range or a time division duplexing configuration. ### Claim 9 (depends on 1) The method of claim 1, wherein the one or more component carriers to which the beam update command is applied include multiple component carriers in a component carrier list that includes the component carrier identified in the beam update command based at least in part on the UE supporting the simultaneous beam update across multiple component carriers. ### Claim 10 A method of wireless communication performed by a base station, comprising: receiving, from a user equipment (UE), information indicating a capability of the UE to support a simultaneous beam update across multiple component carriers; and transmitting, to the UE, a beam update command identifying a component carrier configured for the UE based at least in part on the capability of the UE to support the simultaneous beam update across multiple component carriers. ### Claim 11 (depends on 10) The method of claim 10, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous transmission configuration indication (TCI) state update across multiple component carriers. ### Claim 12 (depends on 11) The method of claim 11, wherein the beam update command identifies a TCI state to be simultaneously activated across multiple component carriers for a downlink receive beam associated with one or more of a physical downlink control channel or a physical downlink shared channel based at least in part on the UE supporting the simultaneous TCI state update across multiple component carriers. ### Claim 13 (depends on 11) The method of claim 11, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates a maximum number of component carrier lists that can be configured for the UE to support the simultaneous TCI state update across multiple component carriers. ### Claim 14 (depends on 10) The method of claim 10, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous spatial relation update for an uplink transmit beam across multiple component carriers. ### Claim 15 (depends on 14) The method of claim 14, wherein the beam update command identifies a spatial relation to be simultaneously activated across multiple component carriers for an uplink transmit beam associated with one or more of an aperiodic or semi-periodic sounding reference signal based at least in part on the UE supporting the simultaneous spatial relation update across multiple component carriers. ### Claim 16 (depends on 14) The method of claim 14, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates a maximum number of component carrier lists that can be configured for the UE that support the simultaneous spatial relation update across multiple component carriers. ### Claim 17 (depends on 14) The method of claim 14, wherein the information indicating whether the UE supports the simultaneous spatial relation update across multiple component carriers applies only to component carriers associated with one or more of a millimeter wave frequency range or a time division duplexing configuration. ### Claim 18 (depends on 10) The method of claim 10, wherein the beam update command is to be applied to multiple component carriers in a component carrier list that includes the component carrier identified in the beam update command based at least in part on the UE supporting the simultaneous beam update across multiple component carriers. ### Claim 19 A user equipment (UE) for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: transmit, to a base station, information indicating a capability of the UE to support a simultaneous beam update across multiple component carriers; receive, from the base station, a beam update command identifying a component carrier configured for the UE based at least in part on the capability of the UE to support the simultaneous beam update across multiple component carriers; and apply the beam update command to one or more component carriers based at least in part on the component carrier identified in the beam update command. ### Claim 20 (depends on 19) The UE of claim 19, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous transmission configuration indication (TCI) state update across multiple component carriers. ### Claim 21 (depends on 20) The UE of claim 20, wherein the beam update command identifies a TCI state to be simultaneously activated across multiple component carriers for a downlink receive beam associated with one or more of a physical downlink control channel or a physical downlink shared channel based at least in part on the UE supporting the simultaneous TCI state update across multiple component carriers. ### Claim 22 (depends on 20) The UE of claim 20, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates a maximum number of component carrier lists that can be configured for the UE to support the simultaneous TCI state update across multiple component carriers. ### Claim 23 (depends on 19) The UE of claim 19, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous spatial relation update for an uplink transmit beam across multiple component carriers. ### Claim 24 (depends on 23) The UE of claim 23, wherein the beam update command identifies a spatial relation to be simultaneously activated across multiple component carriers for an uplink transmit beam associated with one or more of an aperiodic or semi-periodic sounding reference signal based at least in part on the UE supporting the simultaneous spatial relation update across multiple component carriers. ### Claim 25 (depends on 23) The UE of claim 23, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates a maximum number of component carrier lists that can be configured for the UE that support the simultaneous spatial relation update across multiple component carriers. ### Claim 26 A base station for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive, from a user equipment (UE), information indicating a capability of the UE to support a simultaneous beam update across multiple component carriers; and transmit, to the UE, a beam update command identifying a component carrier configured for the UE based at least in part on the capability of the UE to support the simultaneous beam update across multiple component carriers. ### Claim 27 (depends on 26) The base station of claim 26, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous transmission configuration indication (TCI) state update across multiple component carriers. ### Claim 28 (depends on 27) The base station of claim 27, wherein the beam update command identifies a TCI state to be simultaneously activated across multiple component carriers for a downlink receive beam associated with one or more of a physical downlink control channel or a physical downlink shared channel based at least in part on the UE supporting the simultaneous TCI state update across multiple component carriers. ### Claim 29 (depends on 26) The base station of claim 26, wherein the information indicating the capability of the UE to support the simultaneous beam update across multiple component carriers indicates whether the UE supports a simultaneous spatial relation update for an uplink transmit beam across multiple component carriers. ### Claim 30 (depends on 29) The base station of claim 29, wherein the beam update command identifies a spatial relation to be simultaneously activated across multiple component carriers for an uplink transmit beam associated with one or more of an aperiodic or semi-periodic sounding reference signal based at least in part on the UE supporting the simultaneous spatial relation update across multiple component carriers.