# US 12,004,056 B2 · Method and apparatus for configuring SL DRX pattern to solve the half-duplex problem in NR V2X > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,056 B2 - Document ID: US12004056B2 - Status: Granted - Kind: B2 - Application number: 17/457,617 - Filed: 2021-12-03 - Published: 2022-08-25 - Granted: 2024-06-04 - Earliest claimed: 2020-10-23 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Giwon Park; Seungmin Lee; Woosuk Ko; Seoyoung Back; Jongwoo Hong - Web page: https://patentgrep.com/patent/US12004056B2 ## CPC - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 52/0229: {where the received signal is a wanted signal} - 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 of operating a first apparatus 100 in a wireless communication system is proposed. The method may comprise: determining a time duration in which a first active time and a second active time overlap; performing SL transmission or SL reception of a service related to a smaller priority value among a first priority value and a second priority value, within the overlapping time duration; and performing SL transmission or SL reception of a service related to a greater priority value among the first priority value and the second priority value, outside the overlapping time duration. ## Claims ### Claim 1 A method for performing, by a first apparatus, wireless communication, the method comprising: transmitting a first sidelink (SL) discontinuous reception (DRX) configuration related to a first service to a second apparatus, wherein the first SL DRX configuration includes information related to a timer for a first active time and information related to a first DRX cycle; receiving a second SL DRX configuration related to a second service, wherein the second SL DRX configuration includes information related to a timer for a second active time and information related to a second DRX cycle; determining a time duration in which the first active time and the second active time overlap; comparing a first priority value related to the first service to be transmitted within the overlapping time duration and a second priority value related to the second service to be received within the overlapping time duration; performing SL transmission or SL reception of a service related to a smaller priority value among the first priority value and the second priority value, within the overlapping time duration; and performing SL transmission or SL reception of a service related to a greater priority value among the first priority value and the second priority value, outside the overlapping time duration. ### Claim 2 (depends on 1) The method of claim 1, wherein the SL transmission or the SL reception of the service related to the greater priority value among the first priority value and the second priority value is performed in a sleep duration of a SL DRX configuration related to the greater priority value among the first priority value and the second priority value. ### Claim 3 (depends on 1) The method of claim 1, wherein the SL transmission or the SL reception of the service related to the greater priority value among the first priority value and the second priority value is performed outside the overlapping time duration of the second active time. ### Claim 4 (depends on 1) The method of claim 1, wherein the step of transmitting the first SL DRX configuration related to the first service to the second apparatus includes: configuring the first SL DRX configuration so that the first active time and the second active time do not overlap. ### Claim 5 (depends on 4) The method of claim 4, wherein the step of transmitting the first SL DRX configuration related to the first service to the second apparatus further includes: receiving, from the second apparatus, information for configuring the first active time and the second active time not to overlap. ### Claim 6 (depends on 1) The method of claim 1, wherein the timer for the first active time includes at least one of a first SL DRX on-duration timer, a first SL DRX inactivity timer, or a first SL DRX retransmission timer. ### Claim 7 (depends on 6) The method of claim 6, wherein the first active time is a time during which at least one of the first SL DRX on-duration timer, the first SL DRX inactivity timer, or the first SL DRX retransmission timer is running. ### Claim 8 (depends on 1) The method of claim 1, wherein the timer for the second active time includes at least one of a second SL DRX on-duration timer, a second SL DRX inactivity timer, or a second SL DRX retransmission timer. ### Claim 9 (depends on 8) The method of claim 8, wherein the second active time is a time during which at least one of the second SL DRX on-duration timer, the second SL DRX inactivity timer, or the second SL DRX retransmission timer is running. ### Claim 10 (depends on 1) The method of claim 1, wherein the first SL DRX configuration is a default SL DRX configuration or a common SL DRX configuration. ### Claim 11 (depends on 1) The method of claim 1, wherein the second SL DRX configuration is a default SL DRX configuration or a common SL DRX configuration. ### Claim 12 (depends on 1) The method of claim 1, wherein the first SL DRX configuration is an SL DRX configuration related to a pair of the first apparatus and the second apparatus. ### Claim 13 (depends on 1) The method of claim 1, wherein the second SL DRX configuration is an SL DRX configuration related to a pair of the first apparatus and the second apparatus. ### Claim 14 A first apparatus for performing wireless communication, the first apparatus comprising: one or more memories storing instructions; one or more transceivers; and one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to: transmit a first sidelink (SL) discontinuous reception (DRX) configuration related to a first service to a second apparatus, wherein the first SL DRX configuration includes information related to a timer for a first active time and information related to a first DRX cycle; receive a second SL DRX configuration related to a second service, wherein the second SL DRX configuration includes information related to a timer for a second active time and information related to a second DRX cycle; determine a time duration in which the first active time and the second active time overlap; compare a first priority value related to the first service to be transmitted within the overlapping time duration and a second priority value related to the second service to be received within the overlapping time duration; perform SL transmission or SL reception of a service related to a smaller priority value among the first priority value and the second priority value, within the overlapping time duration; and perform SL transmission or SL reception of a service related to a greater priority value among the first priority value and the second priority value, outside the overlapping time duration. ### Claim 15 An apparatus configured to control a first user equipment (UE), the apparatus comprising: one or more processors; and one or more memories operably connectable to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to: transmit a first sidelink (SL) discontinuous reception (DRX) configuration related to a first service to a second UE, wherein the first SL DRX configuration includes information related to a timer for a first active time and information related to a first DRX cycle; receive a second SL DRX configuration related to a second service, wherein the second SL DRX configuration includes information related to a timer for a second active time and information related to a second DRX cycle; determine a time duration in which the first active time and the second active time overlap; compare a first priority value related to the first service to be transmitted within the overlapping time duration and a second priority value related to the second service to be received within the overlapping time duration; perform SL transmission or SL reception of a service related to a smaller priority value among the first priority value and the second priority value, within the overlapping time duration; and perform SL transmission or SL reception of a service related to a greater priority value among the first priority value and the second priority value, outside the overlapping time duration.