# US 12,224,810 B2 · Method and apparatus for performing V2X communication in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,224,810 B2 - Document ID: US12224810B2 - Status: Granted - Kind: B2 - Application number: 17/773,688 - Filed: 2020-11-04 - Published: 2022-12-08 - Granted: 2025-02-11 - Earliest claimed: 2019-11-07 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sangyeob Jung; Anil Agiwal; Hyunjeong Kang - Web page: https://patentgrep.com/patent/US12224810B2 ## CPC - H04B 17/327: Received signal code power [RSCP] - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 52/10: Open loop power control - H04W 52/241: {taking into account channel quality metrics, e.g. SIR, SNR, CIR or Eb/lo} - H04W 52/383: {power control in peer-to-peer links} - H04W 76/14: Direct-mode setup - 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 Provided are a method and apparatus for performing vehicle-to-everything (V2X) communication in a wireless communication system, and an operation method of a first terminal in a wireless communication system includes: receiving, from a second terminal, a PC5 radio resource control (RRC) reconfiguration message including configuration information for measurement of sidelink reference signal received power (SL-RSRP); measuring the SL-RSRP, based on the configuration information for measuring the SL-RSRP; and when a reporting type regarding the measurement of the SL-RSRP is periodic reporting and a measurement value of a Layer 3 filtered SL-RSRP is present, transmitting the measurement value of the Layer 3 filtered SL-RSRP to the second terminal. ## Claims ### Claim 1 An operation method of a first terminal in a wireless communication system, the operation method comprising: receiving, from a second terminal, a radio resource control (RRC) reconfiguration message including configuration information associated with measurement of sidelink reference signal received power (SL-RSRP), wherein the configuration information associated with the measurement of the SL-RSRP includes information for a timer related to a periodic reporting regarding the measurement of the SL-RSRP; performing measurement of a Layer 3 filtered SL-RSRP, based on the configuration information associated with the measurement of the SL-RSRP; and transmitting, to the second terminal, the measurement result of the Layer 3 filtered SL-RSRP. ### Claim 2 (depends on 1) The operation method of claim 1, wherein performing measurement of the Layer 3 filtered SL-RSRP includes performing Layer 3 filtering on a measurement result of the SL-RSRP, based on a filtering coefficient related to the measurement of the SL-RSRP, wherein the filtering coefficient is included in the configuration information associated with the measurement of the SL-RSRP. ### Claim 3 (depends on 1) The operation method of claim 1, wherein the configuration information associated with the measurement of the SL-RSRP is configured for PC5 RRC connection between the first terminal and the second terminal, wherein the first terminal communicates with the second terminal for unicast. ### Claim 4 (depends on 1) The operation method of claim 1, wherein the operation method further comprises starting the timer for the periodic reporting regarding the measurement of the SL-RSRP, based on the information about the value of the timer. ### Claim 5 (depends on 4) The operation method of claim 4, further comprising, in case that the timer for the periodic reporting regarding the measurement of the SL-RSRP expires, transmitting, to the second terminal the measurement result of the Layer 3 filtered SL-RSRP. ### Claim 6 (depends on 4) The operation method of claim 4, wherein the transmitting of the measurement result of the Layer 3 filtered SL-RSRP to the second terminal comprises, regardless of whether the timer for the periodic reporting regarding the measurement of the SL-RSRP has expired, transmitting the measurement result of the Layer 3 filtered SL-RSRP to the second terminal. ### Claim 7 (depends on 1) The operation method of claim 1, wherein the transmitting of the measurement result of the Layer 3 filtered SL-RSRP to the second terminal comprises, when the measurement result of the Layer 3 filtered SL-RSRP is greater than a threshold value, transmitting the measurement result of the Layer 3 filtered SL-RSRP to the second terminal. ### Claim 8 (depends on 1) The operation method of claim 1, wherein the transmitting of the measurement result of the Layer 3 filtered SL-RSRP to the second terminal comprises, when the measurement result of the Layer 3 filtered SL-RSRP is less than a threshold value, transmitting the measurement result of the Layer 3 filtered SL-RSRP to the second terminal. ### Claim 9 An operation method of a second terminal in a wireless communication system, the operation method comprising: receiving, from a base station, a radio resource control (RRC) reconfiguration message including configuration information associated with measurement of sidelink reference signal received power (SL-RSRP), wherein the configuration information associated with the measurement of the SL-RSRP includes information for a timer related to a periodic reporting regarding the measurement of the SL-RSRP; transmitting, to a first terminal, a RRC reconfiguration message including the configuration information associated with the measurement of the SL-RSRP, based on the RRC reconfiguration message received from the base station, wherein the SL-RSRP is measured by the first terminal based on the configuration information associated with the measurement of the SL-RSRP; and receiving a measurement result of a Layer 3 filtered SL-RSRP from the first terminal, wherein the measurement result of the Layer 3 filtered SL-RSRP is received from the first terminal in case that the measurement of the Layer 3 filtered SL-RSRP is performed by the first terminal. ### Claim 10 (depends on 9) The operation method of claim 9, wherein the configuration information associated with the measurement of the SL-RSRP is configured for PC5 RRC connection between the first terminal and the second terminal, wherein the first terminal communicates with the second terminal for unicast. ### Claim 11 (depends on 9) The operation method of claim 9, wherein the timer for the periodic reporting regarding the measurement of the SL-RSRP starts based on the information about the value of the timer. ### Claim 12 (depends on 11) The operation method of claim 11, wherein, in case that the timer for the periodic reporting regarding the measurement of the SL-RSRP expires, the measurement result of the Layer 3 filtered SL-RSRP is received from the first terminal. ### Claim 13 (depends on 11) The operation method of claim 11, wherein, regardless of whether the timer for the periodic reporting regarding the measurement of the SL-RSRP has expired, the measurement result of the Layer 3 filtered SL-RSRP is received from the first terminal. ### Claim 14 A first terminal in a wireless communication system, the first terminal comprising: a transceiver; and at least one processor configured to: receive, from a second terminal through the transceiver, a radio resource control (RRC) reconfiguration message including configuration information associated with measurement of sidelink reference signal received power (SL-RSRP), wherein the configuration information associated with the measurement of the SL-RSRP includes information for a timer related to a periodic reporting regarding the measurement of the SL-RSRP; perform measurement of a Layer 3 filtered SL-RSRP, based on the configuration information associated with the measurement of the SL-RSRP; and transmit, to the second terminal through the transceiver, the measurement result of the Layer 3 filtered SL-RSRP. ### Claim 15 A second terminal in a wireless communication system, the second terminal comprising: a transceiver; and at least one processor configured to: receive, from a base station through the transceiver, a radio resource control (RRC) reconfiguration message including configuration information associated with measurement of sidelink reference signal received power (SL-RSRP), wherein the configuration information associated with the measurement of the SL-RSRP includes information for a timer related to a periodic reporting regarding the measurement of the SL-RSRP; transmit, to a first terminal through the transceiver, a RRC reconfiguration message including the configuration information associated with the measurement of the SL-RSRP, based on the RRC reconfiguration message received from the base station, wherein the SL-RSRP is measured by the first terminal based on the configuration information associated with the measurement of the SL-RSRP; and receive, from the first terminal through the transceiver, a measurement result of a Layer 3 filtered SL-RSRP, wherein the measurement result of the Layer 3 filtered SL-RSRP is received from the first terminal in case that the measurement of the Layer 3 filtered SL-RSRP is performed by the first terminal.