# US 2020/0404665 A1 · Beamformed channel busy ratio > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0404665 A1 - Document ID: US20200404665A1 - Status: Published application - Kind: A1 - Application number: 16/900,463 - Filed: 2020-06-12 - Published: 2020-12-24 - Earliest claimed: 2019-06-20 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jung Ho RYU; Kapil GULATI; Junyi LI; Sony AKKARAKARAN; Tao LUO - Web page: https://patentgrep.com/patent/US20200404665A1 ## CPC - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04W 72/52: based on load - H04W 8/26: Network addressing or numbering for mobility support - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04W 72/20: Control channels or signalling for resource management - H04W 16/28: using beam steering - H04W 48/12: using downlink control channel - H04W 76/14: Direct-mode setup - H04W 92/18: between terminal devices - 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 may measure a per-beam channel busy ratio (CBR) for each of one or more beams configured on the sidelink receiver for transmitting or receiving sidelink transmissions including a first CBR for a first beam that is to be used for receiving a sidelink transmission transmitted by a first sidelink transmitter; and may transmit an indication of the per-beam CBR. In some aspects, a user equipment may receive information associated with a per-beam CBR including a first CBR for a first beam to be used by a sidelink receiver for receiving a sidelink transmission transmitted by the sidelink transmitter, and may selectively transmit the sidelink transmission for reception by the sidelink transmitter using the first beam based at least in part on the indication of the per-beam CBR. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a sidelink receiver, comprising: measuring a per-beam channel busy ratio (CBR) for each of one or more beams configured on the sidelink receiver for transmitting or receiving sidelink transmissions including a first CBR for a first beam that is to be used for receiving a sidelink transmission transmitted by a first sidelink transmitter; and transmitting an indication of the per-beam CBR for each of the one or more of the beams including the first CBR for the first beam. ### Claim 2 (depends on 1) The method of claim 1, wherein the indication of the per-beam CBR is transmitted using the first beam. ### Claim 3 (depends on 1) The method of claim 1, wherein the indication of the per-beam CBR is transmitted to a set of sidelink transmitters including the first sidelink transmitter, or is transmitted to a base station configured to relay the indication of the per-beam CBR to the set of sidelink transmitters. ### Claim 4 (depends on 3) The method of claim 3, further comprising transmitting a set of user equipment (UE) identifiers corresponding to the set of sidelink transmitters. ### Claim 5 (depends on 1) The method of claim 1, further comprising transmitting a user equipment (UE) identifier of the sidelink receiver and a beam identifier of the per-beam CBR. ### Claim 6 (depends on 1) The method of claim 1, wherein the sidelink receiver is configured to periodically measure and transmit the indication of the per-beam CBR, wherein a periodicity of the measurement of the per-beam CBR or the transmission of the indication of the per-beam CBR depends on the first beam. ### Claim 7 (depends on 1) The method of claim 1, wherein transmitting the indication of the per-beam CBR comprises: determining information identifying a particular set of time-frequency resources that corresponds to the first beam; and transmitting the indication of the per-beam CBR in the particular set of time-frequency resources. ### Claim 8 (depends on 1) The method of claim 1, wherein the sidelink receiver and the first sidelink transmitter have common timing. ### Claim 9 (depends on 1) The method of claim 1, wherein the sidelink receiver measures and transmits the per-beam CBR based at least in part on an indication from a base station that the sidelink receiver is to receive the sidelink transmission. ### Claim 10 (depends on 1) The method of claim 1, wherein the per-beam CBR includes a plurality of CBRs for the first beam, each associated with a different threshold. ### Claim 11 (depends on 10) The method of claim 10, wherein the transmitted indication of the per-beam CBR includes an indication of each CBR of the plurality of CBRs. ### Claim 12 (depends on 10) The method of claim 10, wherein the transmitted indication of the per-beam CBR includes an indication of a subset of CBRs that is selected from the plurality of CBRs. ### Claim 13 (depends on 12) The method of claim 12, wherein the subset of CBRs is selected based at least in part on at least one of: an instruction received from a base station, a priority of the sidelink transmission, or a priority of the sidelink transmitter. ### Claim 14 (depends on 1) The method of claim 1, wherein the first CBR is associated with a threshold selected for assessing busyness for a wide beam. ### Claim 15 (depends on 1) The method of claim 1, wherein the first CBR is associated with a threshold selected for assessing busyness for a narrow beam. ### Claim 16 (depends on 1) The method of claim 1, wherein the per-beam CBR includes a second CBR for a second beam of the one or more beams, wherein the first CBR is associated with a first threshold and the second CBR is associated with a second threshold that is different from the first threshold. ### Claim 17 A method of wireless communication performed by a sidelink transmitter, comprising: receiving an indication of a per-beam channel busy ratio (CBR) including a first CBR for a first beam to be used by a sidelink receiver for receiving a sidelink transmission transmitted by the sidelink transmitter; and selectively transmitting the sidelink transmission for reception by the sidelink receiver using the first beam based at least in part on the indication of the per-beam CBR. ### Claim 18 (depends on 17) The method of claim 17, wherein the indication of the per-beam CBR is received from the sidelink receiver or from a base station configured to relay the indication of the per-beam CBR from the sidelink receiver. ### Claim 19 (depends on 17) The method of claim 17, further comprising receiving a user equipment (UE) identifier of the sidelink receiver and a beam identifier of the per-beam CBR. ### Claim 20 (depends on 17) The method of claim 17, wherein the sidelink receiver is configured to periodically measure and transmit the indication of the per-beam CBR, wherein a periodicity of the measurement of the per-beam CBR or the transmission of the indication of the per-beam CBR depends on the beam. ### Claim 21 (depends on 17) The method of claim 17, wherein the sidelink transmitter periodically receives the indication of the per-beam CBR, wherein a periodicity of the reception of the indication of the per-beam CBR depends on the beam. ### Claim 22 (depends on 17) The method of claim 17, wherein receiving the indication of the per-beam CBR associated with the beam comprises: determining information identifying a particular set of time-frequency resources as a set of time-frequency resources that corresponds to the beam; and receiving the indication of the per-beam CBR in the particular set of time-frequency resources that corresponds to the beam. ### Claim 23 (depends on 17) The method of claim 17, wherein the sidelink receiver and the sidelink transmitter have common timing. ### Claim 24 (depends on 17) The method of claim 17, wherein the per-beam CBR includes a plurality of CBRs for the first beam, each associated with a different threshold. ### Claim 25 (depends on 24) The method of claim 24, wherein the plurality of CBRs is a subset of CBRs from another plurality of CBRs for the first beam. ### Claim 26 (depends on 25) The method of claim 25, wherein the subset of CBRs is based at least in part on at least one of: an instruction received from a base station, a priority of the sidelink transmission, or a priority of the sidelink transmitter. ### Claim 27 (depends on 17) The method of claim 17, wherein the first CBR is associated with a threshold selected for assessing busyness for a wide beam. ### Claim 28 (depends on 17) The method of claim 17, wherein the first CBR is associated with a threshold selected for assessing busyness for a narrow beam. ### Claim 29 (depends on 17) The method of claim 17, wherein the per-beam CBR includes a second CBR for a second beam, wherein the first CBR is associated with a first threshold and the second CBR is associated with a second threshold that is different from the first threshold. ### Claim 30 A method of wireless communication performed by a sidelink receiver, comprising: receiving a sidelink transmission transmitted by a sidelink transmitter; and transmitting a busy signal based at least in part on receiving the sidelink transmission from the sidelink transmitter, the busy signal indicating that a channel associated with the sidelink transmission is busy or is occupied, the busy signal being transmitted in a time period during which the sidelink receiver is receiving the sidelink transmission from the sidelink transmitter. ### Claim at position 31 31-49. (canceled)