# US 11,910,432 B2 · Methods and apparatuses for scheduling request resource prioritization for beam failure recovery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,432 B2 - Document ID: US11910432B2 - Status: Granted - Kind: B2 - Application number: 17/557,540 - Filed: 2021-12-21 - Published: 2022-06-23 - Granted: 2024-02-20 - Earliest claimed: 2019-07-26 - Assignees: Hannibal IP LLC - Applicants: Hannibal IP LLC - Inventors: Hsin-Hsi Tsai; Heng-Li Chin; Chie-Ming Chou - Web page: https://patentgrep.com/patent/US11910432B2 ## CPC - H04W 72/569: {of the traffic information} - H04W 28/0278: {using buffer status reports (dynamic wireless traffic scheduling definition H04W72/12)} - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04W 72/1268: of uplink data flows - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method for Scheduling Request (SR) resource prioritization for Beam Failure Recovery (BFR) includes a User Equipment (UE) receiving a first SR configuration from a Base Station (BS), receiving a second SR configuration from the BS, triggering a first SR procedure for a BFR procedure based on the first SR configuration, triggering a second SR procedure for a Buffer Status Report (BSR) procedure based on the second SR configuration, in a case that the first SR procedure and the second SR procedure are triggered and not cancelled and the first SR resource overlaps the second SR resource in the time domain, prioritizing the first SR resource over the second SR resource, and transmitting an SR on the first SR resource after prioritizing the first SR resource over the second SR resource. ## Claims ### Claim 1 A method performed by a User Equipment (UE) for sending a Scheduling Request (SR) for a multiple secondary cell (SCell) beam failure recovery (BFR) procedure, the method comprising: receiving, from a Base Station (BS), a SR configuration indicating a first SR index associated with a first SR resource and a second SR index associated with a second SR resource; triggering a first SR procedure for a first BFR procedure for a first SCell, the first SR procedure comprising: transmitting a first SR on the first SR resource, and starting a prohibit timer corresponding to the first SR resource, and triggering a second SR procedure for a second BFR procedure for a second SCell, the first SCell and the second SCell belonging to the same cell group, the first SR resource and the second SR resource overlapping in a time domain, the second SR procedure comprising transmitting a second SR on the second SR resource when the prohibit timer is not running. ### Claim 2 (depends on 1) The method of claim 1, wherein the prohibit timer is configured by the SR configuration. ### Claim 3 (depends on 1) The method of claim 1, wherein the first SR resource is a Physical Uplink Control Channel (PUCCH) resource. ### Claim 4 (depends on 1) The method of claim 1, wherein the cell group for the UE is configured with one SR configuration with the first and second SR indexes. ### Claim 5 (depends on 1) The method of claim 1, wherein triggering the BFR procedure is in response to detecting a beam failure event on a SCell. ### Claim 6 (depends on 1) The method of claim 1, further comprising stopping the prohibit timer when the first SR procedure is cancelled. ### Claim 7 (depends on 1) The method of claim 1, further comprising stopping the prohibit timer in response to a Medium Access Control (MAC) Protocol Data Unit (PDU) that includes a BFR MAC Control Element (CE) being transmitted to the BS. ### Claim 8 (depends on 1) The method of claim 1, further comprising maintaining a counter for counting how many times SRs for BFR procedures are transmitted. ### Claim 9 (depends on 8) The method of claim 8, further comprising: determining whether the counter exceeds a maximum number; and transmitting an SR on the corresponding SR resource when the count is less than the maximum number. ### Claim 10 A User Equipment (UAE) comprising: one or more non-transitory computer-readable media containing computer-executable instructions embodied therein; and at least one processor coupled to the one or more non-transitory computer-readable media, the at least one processor configured to execute the computer-executable instructions to: receive, from a Base Station (BS), a SR configuration indicating a first SR index associated with a first SR resource and a second SR index associated with a second SR resource; trigger a first SR procedure for a first BFR procedure for a first SCell, the first SR procedure comprising: transmitting a first SR on the first SR resource, and starting a prohibit timer corresponding to the first SR resource; and trigger a second SR procedure for a second BFR procedure for a second SCell, the first SCell and the second SCell belonging to the same cell group, the first SR resource and the second SR resource overlapping in a time domain, the second SR procedure comprising transmitting a second SR on the second SR resource when the prohibit timer is not running. ### Claim 11 (depends on 10) The UE of claim 10, wherein the prohibit timer is configured by the SR configuration. ### Claim 12 (depends on 10) The UE of claim 10, wherein the first SR resource is a Physical Uplink Control Channel (PUCCH) resource. ### Claim 13 (depends on 10) The UE of claim 10, wherein the cell group for the UE is configured with one SR configuration with the first and second SR indexes. ### Claim 14 (depends on 10) The UE of claim 10, wherein the at least one processor is configured to execute the computer-executable instructions to: trigger the BFR procedure in response to detecting a beam failure event on a SCell. ### Claim 15 (depends on 10) The UE of claim 10, wherein the at least one processor is further configured to execute the computer-executable instructions to: stop the prohibit timer when the first SR procedure is cancelled. ### Claim 16 (depends on 10) The UE of claim 10, wherein the at least one processor is further configured to execute the computer-executable instructions to: stop the prohibit timer in response to a Medium Access Control (MAC) Protocol Data Unit (PDU) that includes a BFR MAC Control Element (CE) being transmitted to the BS. ### Claim 17 (depends on 10) The UE of claim 10, wherein the at least one processor is further configured to execute the computer-executable instructions to: maintain a counter for counting how many times SRs for BFR procedures are transmitted. ### Claim 18 (depends on 17) The UE of claim 17, wherein the at least one processor is further configured to execute the computer-executable instructions to: determine whether the counter exceeds a maximum number; and transmit an SR on the corresponding SR resource when the count is less than the maximum number.