# US 11,910,461 B2 · Beam failure recovery with multiple cells > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,461 B2 - Document ID: US11910461B2 - Status: Granted - Kind: B2 - Application number: 17/957,056 - Filed: 2022-09-30 - Published: 2023-01-26 - Granted: 2024-02-20 - Earliest claimed: 2019-08-15 - Assignees: Ofinno, LLC - Applicants: Ofinno, LLC - Inventors: Hua Zhou; Esmael Hejazi Dinan; Ali Cagatay Cirik; Youngwoo Kwak - Web page: https://patentgrep.com/patent/US11910461B2 ## CPC - H04W 76/19: Connection re-establishment - H04B 7/06964: {Re-selection of one or more beams after beam failure} - H04B 7/088: {using beam selection} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 76/15: Setup of multiple wireless link connections - H04W 48/12: using downlink control channel - H04W 48/16: Discovering, processing access restriction or access information - H04W 48/20: Selecting an access point - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract Beam failure recovery with multiple cells is disclosed. A wireless receives configuration parameters indicating one or more first reference signals, on a first cell, as reference signals for a beam failure recovery (BFR) procedure of a second cell. The wireless device triggers a beam failure recovery (BFR) procedure for the second cell. The wireless cancels the BFR procedure for the second cell based on a deactivation of the first cell. ## Claims ### Claim 1 A method comprising: receiving, by a wireless device, configuration parameters indicating one or more first reference signals (RSs), on a first cell, as RSs for a beam failure recovery (BFR) procedure of a second cell; triggering the BFR procedure for the second cell; and cancelling the BFR procedure for the second cell based on a deactivation of the first cell. ### Claim 2 (depends on 1) The method of claim 1, further comprising measuring the one or more first RSs, on the first cell, for a candidate beam selection for the BFR procedure of the second cell, based on the first cell being in an active state. ### Claim 3 (depends on 1) The method of claim 1, further comprising deactivating the first cell in response to at least one of: an expiry of a cell deactivation timer of the first cell; and receiving a medium access control (MAC) control element (CE) indicating the deactivation of the first cell. ### Claim 4 (depends on 1) The method of claim 1, wherein the triggering the BFR procedure comprises triggering a scheduling request for the BFR procedure of the second cell. ### Claim 5 (depends on 1) The method of claim 1, wherein the cancelling the BFR procedure for the second cell comprises stopping measuring the one or more first RSs, on the first cell, for a candidate beam selection for the BFR procedure of the second cell. ### Claim 6 (depends on 1) The method of claim 1, further comprising receiving one or more messages comprising the configuration parameters, the configuration parameters further indicating: one or more second RSs, on the second cell, for beam failure instance detection for the BFR procedure of the second cell; one or more scheduling requests for the BFR procedure of the second cell; a radio link quality threshold; and a maximum beam failure instance counter. ### Claim 7 (depends on 6) The method of claim 6, further comprising triggering the BFR procedure, for the second cell, based on: detecting a beam failure instance based on the one or more second RSs being assessed with a radio quality lower than the radio link quality threshold; and a number of beam failure instances on the second cell reaching the maximum beam failure instance counter. ### Claim 8 (depends on 1) The method of claim 1, further comprising triggering a transmission of a scheduling request based on the triggering of the BFR procedure of the second cell. ### Claim 9 (depends on 8) The method of claim 8, further comprising transmitting the scheduling request for the BFR procedure of the second cell via a physical uplink control channel. ### Claim 10 (depends on 8) The method of claim 8, wherein the cancelling the BFR procedure comprises stopping the transmission of the scheduling request. ### Claim 11 A wireless device comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the wireless device to: receive configuration parameters indicating one or more first reference signals (RSs), on a first cell, as RSs for a beam failure recovery (BFR) procedure of a second cell; trigger the BFR procedure for the second cell; and cancel the BFR procedure for the second cell based on a deactivation of the first cell. ### Claim 12 (depends on 11) The wireless device of claim 11, wherein the instructions, when executed by the one or more processors, further cause the wireless device to measure the one or more first RSs, on the first cell, for a candidate beam selection for the BFR procedure of the second cell, based on the first cell being in an active state. ### Claim 13 (depends on 11) The wireless device of claim 11, wherein the instructions, when executed by the one or more processors, further cause the wireless device to deactivate the first cell in response to at least one of: an expiry of a cell deactivation timer of the first cell; and reception of a medium access control (MAC) control element (CE) indicating the deactivation of the first cell. ### Claim 14 (depends on 11) The wireless device of claim 11, wherein triggering the BFR procedure comprises triggering a scheduling request for the BFR procedure of the second cell. ### Claim 15 (depends on 11) The wireless device of claim 11, wherein cancelling the BFR procedure for the second cell comprises stopping measurement of the one or more first RSs, on the first cell, for a candidate beam selection for the BFR procedure of the second cell. ### Claim 16 (depends on 11) The wireless device of claim 11, wherein the instructions, when executed by the one or more processors, further cause the wireless device to receive one or more radio resource control messages comprising the configuration parameters of the second cell, the configuration parameters further indicating: one or more second RSs, on the second cell, for beam failure instance detection for the BFR procedure of the second cell; one or more scheduling requests for the BFR procedure of the second cell; a radio link quality threshold; and a maximum beam failure instance counter. ### Claim 17 (depends on 16) The wireless device of claim 16, wherein the instructions, when executed by the one or more processors, further cause the wireless device to trigger the BFR procedure, for the second cell, based on: a detection of a beam failure instance based on the one or more second RSs being assessed with a radio quality lower than the radio link quality threshold; and a number of beam failure instances on the second cell reaching the maximum beam failure instance counter. ### Claim 18 (depends on 11) The wireless device of claim 11, wherein the instructions, when executed by the one or more processors, further cause the wireless device to trigger a transmission of a scheduling request based on the triggering the BFR procedure of the second cell. ### Claim 19 (depends on 18) The wireless device of claim 18, wherein the instructions, when executed by the one or more processors, further cause the wireless device to transmit the scheduling request for the BFR procedure of the second cell via a physical uplink control channel. ### Claim 20 (depends on 18) The wireless device of claim 18, wherein cancelling the BFR procedure comprises stopping the transmission of the scheduling request.