# US 12,009,895 B2 · Techniques for enabling beam management radio resource control parameters > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,895 B2 - Document ID: US12009895B2 - Status: Granted - Kind: B2 - Application number: 17/811,261 - Filed: 2022-07-07 - Published: 2023-03-16 - Granted: 2024-06-11 - Earliest claimed: 2021-09-10 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Yan Zhou; Tianyang Bai; Tao Luo; Junyi Li; Jing Sun; Mostafa Khoshnevisan - Web page: https://patentgrep.com/patent/US12009895B2 ## CPC - H04B 7/06964: {Re-selection of one or more beams after beam failure} - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]} - H04B 7/0854: {using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion} - H04B 7/088: {using beam selection} - H04B 7/0888: {with selection} - H04L 1/203: {Details of error rate determination, e.g. BER, FER or WER} - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method of wireless communication performed by a user equipment (UE) includes measuring a signal strength of a beam failure detection (BFD) reference signal (RS), the BFD RS being included in a BFD RS set that corresponds to a transmission reception point (TRP) of a plurality of TRPs; the method further includes identifying a BFD threshold associated with the TRP, detecting a beam failure instance associated with the TRP based at least in part on a determination that the signal strength of the BFD RS satisfies the BFD threshold and, providing an indication of the beam failure instance associated with the TRP. Numerous other aspects are described. ## Claims ### Claim 1 A method of wireless communication performed by a user equipment (UE), comprising: measuring a signal strength of a beam failure detection (BFD) reference signal (RS), the BFD RS being included in a BFD RS set that corresponds to a transmission reception point (TRP) of a plurality of TRPs; identifying a BFD threshold associated with the TRP; detecting a beam failure instance associated with the TRP based at least in part on a determination that the signal strength of the BFD RS satisfies the BFD threshold; and providing an indication of the beam failure instance associated with the TRP. ### Claim 2 (depends on 1) The method of claim 1, wherein the BFD threshold is a block error rate (BLER) threshold. ### Claim 3 (depends on 1) The method of claim 1, wherein the BFD threshold is identified based at least in part on a default value for the BFD threshold. ### Claim 4 (depends on 1) The method of claim 1, wherein the BFD threshold is identified based at least in part on a TRP-specific beam failure recovery (BFR) value for the BFD threshold. ### Claim 5 (depends on 1) The method of claim 1, wherein the BFD threshold is identified based at least in part on receiving radio resource control (RRC) signaling that indicates a value for the BFD threshold. ### Claim 6 (depends on 1) The method of claim 1, wherein the BFD threshold is a common BFD threshold associated with the plurality of TRPs. ### Claim 7 (depends on 1) The method of claim 1, wherein the BFD threshold is a TRP-specific threshold associated with the TRP. ### Claim 8 (depends on 1) The method of claim 1, wherein the BFD threshold is associated with a particular component carrier. ### Claim 9 (depends on 1) The method of claim 1, wherein the BFD threshold is configured on the UE based at least in part on TRP-specific beam failure reporting being configured for a component carrier associated with the TRP. ### Claim 10 A method of wireless communication performed by a user equipment (UE), comprising: measuring a signal strength of a candidate beam reference signal (RS), the candidate beam RS being included in a set of candidate beam RSs that corresponds to a transmission reception point (TRP) of a plurality of TRPs; identifying a candidate beam threshold associated with the TRP; selecting a candidate beam corresponding to the candidate beam RS for beam failure recovery based at least in part on a determination that the signal strength of the candidate beam RS satisfies the candidate beam threshold; and transmitting a beam failure recovery (BFR) report including an indication of the candidate beam. ### Claim 11 (depends on 10) The method of claim 10, wherein the candidate beam threshold is identified based at least in part on a default value for a synchronization signal block (SSB) threshold or default value for a BFR threshold. ### Claim 12 (depends on 10) The method of claim 10, wherein the candidate beam threshold is identified based at least in part on a TRP-specific BFR reporting value for a synchronization signal block (SSB) threshold or a TRP-specific BFR reporting value for a BFR threshold. ### Claim 13 (depends on 10) The method of claim 10, wherein the candidate beam threshold is identified based at least in part on a synchronization signal block (SSB) threshold based at least in part on a cell associated with the TRP being a secondary primary cell. ### Claim 14 (depends on 10) The method of claim 10, wherein the candidate beam threshold is identified based at least in part on a BFR threshold based at least in part on a cell associated with the TRP being a secondary cell. ### Claim 15 (depends on 10) The method of claim 10, wherein the candidate beam threshold is identified based at least in part on a BFR threshold regardless of a type of a cell associated with the TRP. ### Claim 16 (depends on 10) The method of claim 10, wherein the candidate beam threshold is identified based at least in part on a synchronization signal block (SSB) threshold regardless of a type of a cell associated with the TRP. ### Claim 17 (depends on 10) The method of claim 10, wherein the candidate beam threshold is a common candidate beam threshold associated with the plurality of TRPs. ### Claim 18 (depends on 10) The method of claim 10, wherein the candidate beam threshold is a TRP-specific threshold associated with the TRP. ### Claim 19 (depends on 10) The method of claim 10, wherein the candidate beam threshold is associated with a particular component carrier. ### Claim 20 (depends on 10) The method of claim 10, wherein the candidate beam threshold is configured on the UE based at least in part on TRP-specific beam failure reporting being configured for a component carrier associated with the TRP. ### Claim 21 (depends on 10) The method of claim 10, wherein the BFR report is transmitted in a set of physical uplink control channel (PUCCH) resources corresponding to a scheduling request (SR), the SR being one of a plurality of SRs configured for requesting TRP-specific BFRs for a cell group. ### Claim 22 (depends on 21) The method of claim 21, wherein at least two sets of PUCCH resources, of a plurality of sets of PUCCH resources associated with the plurality of SRs, are in a same PUCCH cell of the cell group. ### Claim 23 (depends on 21) The method of claim 21, wherein at least two sets PUCCH resources, of a plurality of sets of PUCCH resources associated with the plurality of SRs, are in different PUCCH cells of the cell group. ### Claim 24 (depends on 10) The method of claim 10, further comprising receiving a configuration associated with a plurality of sets of candidate beam RSs, wherein each set of candidate beam RSs of the plurality of sets of candidate beam RSs corresponds to a different TRP of the plurality of TRPs. ### Claim 25 (depends on 10) The method of claim 10, wherein the candidate beam RS is a synchronization signal block (SSB) or a channel state information RS (CSI-RS).