# US 11,910,226 B2 · Method and apparatus for configuring sidelink data bearer in 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 11,910,226 B2 - Document ID: US11910226B2 - Status: Granted - Kind: B2 - Application number: 18/074,936 - Filed: 2022-12-05 - Published: 2023-04-13 - Granted: 2024-02-20 - Earliest claimed: 2019-07-02 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Hyunjeong Kang; Anil Agiwal - Web page: https://patentgrep.com/patent/US11910226B2 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 28/0252: {per individual bearer or channel (dynamic wireless traffic scheduling H04W72/12)} - 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 40/24: Connectivity information management, e.g. connectivity discovery or connectivity update - H04W 72/02: Selection of wireless resources by user or terminal - H04W 72/20: Control channels or signalling for resource management - H04W 72/56: based on priority criteria - H04W 76/14: Direct-mode setup - H04W 76/27: Transitions between radio resource control [RRC] states - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04W 92/18: between terminal devices - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A communication method of a first sidelink terminal in a wireless communication system is provided. The communication method includes obtaining sidelink radio bearer configuration information, identifying default sidelink radio bearer information in the sidelink radio bearer configuration information, and transmitting data to a base station or a second sidelink terminal based on the default sidelink radio bearer information. ## Claims ### Claim 1 A communication method of a first sidelink terminal in a wireless communication system, the communication method comprising: receiving sidelink radio bearer configuration information including default sidelink radio bearer information indicating a default sidelink radio bearer for a sidelink QoS flow and priority information comprising a priority value for sidelink data transmission; and transmitting, to a second sidelink terminal, sidelink data prior to uplink data identified to be transmitted to a base station, based on the default sidelink radio bearer information, in case that the priority value for the sidelink data transmission is less than a priority threshold value for a sidelink and a priority value for uplink data transmission is greater than or equal to a priority threshold value for an uplink, wherein the priority value for the uplink data transmission and the priority threshold value for the sidelink and the uplink are configured via a radio resource control (RRC) signal. ### Claim 2 (depends on 1) The communication method of claim 1, wherein the sidelink radio bearer configuration information is obtained from one of a response message to a configuration request message of the first sidelink terminal, system information received from the base station, or preconfigured configuration information. ### Claim 3 (depends on 1) The communication method of claim 1, wherein the receiving of the sidelink radio bearer configuration information comprises, in case that the first sidelink terminal is in an RRC_CONNECTED MODE: requesting, to the base station, the sidelink radio bearer configuration information, and receiving the sidelink radio bearer configuration information through a response message in response to the requesting. ### Claim 4 (depends on 1) The communication method of claim 1, wherein the receiving of the sidelink radio bearer configuration information comprises, in case that the first sidelink terminal is in an RRC_IDLE MODE or an RRC_INACTIVE MODE, receiving the sidelink radio bearer configuration information through system information received from the base station. ### Claim 5 (depends on 1) The communication method of claim 1, wherein the receiving of the sidelink radio bearer configuration information comprises, in case that the first sidelink terminal is in an Out-Of-Coverage state, receiving the sidelink radio bearer configuration information from preconfigured information. ### Claim 6 (depends on 1) The communication method of claim 1, further comprising: obtaining new sidelink radio bearer configuration information; and applying the obtained new sidelink radio bearer configuration information. ### Claim 7 (depends on 6) The communication method of claim 6, wherein the obtaining of the new sidelink radio bearer configuration is based on a state transition or coverage change of the first sidelink terminal. ### Claim 8 (depends on 1) The communication method of claim 1, wherein the transmitting of the sidelink data is further based on a determination, by the first sidelink terminal, that the uplink data and the sidelink data are unable to be simultaneously transmitted. ### Claim 9 (depends on 1) The communication method of claim 1, wherein the priority value for transmission of the sidelink data is configured for each sidelink flow, and wherein the uplink data comprises uplink data transmitted to the base station connected by using dual connectivity to the first sidelink terminal. ### Claim 10 A first sidelink terminal of a wireless communication system, the first sidelink terminal comprising: a transceiver; and a processor coupled to the transceiver and configured to: receive sidelink radio bearer configuration information including default sidelink radio bearer information indicating a default sidelink radio bearer for a sidelink QoS flow and priority information comprising a priority value for sidelink data transmission, and transmit, to a second sidelink terminal, sidelink data prior to uplink data identified to be transmitted to a base station, based on the default sidelink radio bearer information, in case that the priority value for the sidelink data transmission is less than a priority threshold value for a sidelink and a priority value for uplink data transmission is greater than or equal to a priority threshold value for an uplink, wherein the priority value for the uplink data transmission and the priority threshold value for the sidelink and the uplink are configured via a radio resource control (RRC) signal. ### Claim 11 (depends on 10) The first sidelink terminal of claim 10, wherein the sidelink radio bearer configuration information is obtained from one of a response message to a configuration request message of the first sidelink terminal, system information received from the base station, or preconfigured configuration information. ### Claim 12 (depends on 10) The first sidelink terminal of claim 10, wherein the processor is further configured to, in case that the first sidelink terminal is in an RRC_CONNECTED MODE: request, to the base station, the sidelink radio bearer configuration information, and receive the sidelink radio bearer configuration information through a response message in response to the request. ### Claim 13 (depends on 10) The first sidelink terminal of claim 10, wherein the processor is further configured to, in case that the first sidelink terminal is in an RRC_IDLE MODE or an RRC_INACTIVE MODE, receive the sidelink radio bearer configuration information through system information received from the base station. ### Claim 14 (depends on 10) The first sidelink terminal of claim 10, wherein the processor is further configured to, in case that the first sidelink terminal is in an Out-Of-Coverage state, receive the sidelink radio bearer configuration information from preconfigured information. ### Claim 15 (depends on 10) The first sidelink terminal of claim 10, wherein the processor is further configured to: obtain new sidelink radio bearer configuration information, and apply the obtained new sidelink radio bearer configuration information. ### Claim 16 (depends on 15) The first sidelink terminal of claim 15, wherein the processor is further configured to obtain the new sidelink radio bearer configuration information during a state transition or coverage change of the first sidelink terminal. ### Claim 17 (depends on 10) The first sidelink terminal of claim 10, wherein the processor is further configured to determine that the uplink data and the sidelink data are unable to be simultaneously transmitted, and wherein the transmission of the sidelink data is further based on a determination that the uplink data and the sidelink data are unable to be simultaneously transmitted. ### Claim 18 (depends on 10) The first sidelink terminal of claim 10, wherein the priority value for transmission of the sidelink data is configured for each sidelink flow, and wherein the uplink data comprises uplink data transmitted to the base station connected by using dual connectivity to the first sidelink terminal.