# US 11,122,481 B2 · V2X message sending method, apparatus, and system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,122,481 B2 - Document ID: US11122481B2 - Status: Granted - Kind: B2 - Application number: 16/714,419 - Filed: 2019-12-13 - Published: 2020-04-16 - Granted: 2021-09-14 - Earliest claimed: 2016-08-09 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Mingchao Li; Zhenzhen Cao; Xiao Xiao - Web page: https://patentgrep.com/patent/US11122481B2 ## CPC - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 36/08: Reselecting an access point - H04W 56/001: {Synchronization between nodes} - H04W 72/563: of the wireless resources - H04W 74/0816: with collision avoidance - H04W 76/27: Transitions between radio resource control [RRC] states - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments of the present invention provide a V2X message sending method, apparatus, and system, and relate to the field of Internet of Vehicles. The method includes: obtaining, by a terminal, first configuration information, where the first configuration information is used for determining a first transmission resource pool; determining the first transmission resource pool based on the first configuration information; selecting a first transmission resource from the first transmission resource pool in a first transmission resource obtaining manner when a preset condition is met; and sending a V2X message by using the first transmission resource. ## Claims ### Claim 1 A method comprising: obtaining, by a terminal device, first configuration information and second configuration information, wherein the first configuration information is for determining a first transmission resource pool, the second configuration information is for determining a second transmission resource pool, a manner of obtaining a transmission resource from the first transmission resource pool is a first transmission resource obtaining manner, the first transmission resource obtaining manner is a random selection manner, a manner of obtaining a transmission resource from the second transmission resource pool is a second transmission resource obtaining manner in which a transmission resource is selected after channel sensing is performed on the second transmission resource pool for sensing duration T2; selecting, by the terminal device, a first transmission resource from the first transmission resource pool in the first transmission resource obtaining manner when a sensing result is not obtained from the second transmission resource pool; and sending, by the terminal device, a vehicle to X (V2X) message on the first transmission resource. ### Claim 2 (depends on 1) The method according to claim 1, wherein the method further comprises: obtaining, by the terminal device, a second transmission resource from the second transmission resource pool in the second transmission resource obtaining manner, and sending the V2X message on the second transmission resource, when a sensing result is obtained from the second transmission resource pool. ### Claim 3 (depends on 1) The method according to claim 1, wherein obtaining, by the terminal device, the first configuration information and the second configuration information comprises: obtaining, by the terminal device, preconfigured first configuration information and preconfigured second configuration information; or receiving, by the terminal device, radio resource control (RRC) dedicated signaling from an access network device, and obtaining the first configuration information and the second configuration information from the RRC dedicated signaling; or receiving, by the terminal device, system information from the access network device, and obtaining the first configuration information and the second configuration information from the system information. ### Claim 4 A method comprising: determining, by an access network device, a first transmission resource pool and a second transmission resource pool, wherein the first transmission resource pool is for a terminal device to select a transmission resource from the first transmission resource pool in a first transmission resource obtaining manner, the first transmission resource obtaining manner is a random selection manner, the second transmission resource pool is for the terminal device to select a transmission resource from the second transmission resource pool in a second transmission resource obtaining manner, and the second transmission resource obtaining manner is a transmission resource obtaining manner in which a transmission resource is selected after channel sensing is performed on the second transmission resource pool for sensing duration T2, when a sensing result is not obtained from the second transmission resource pool, the first transmission resource pool is for the terminal device to select a first transmission resource in the first transmission resource obtaining manner, the first transmission resource is for carrying a vehicle to X (V2X) message; and sending, by the access network device, first configuration information and second configuration information to the terminal device, wherein the first configuration information is for determining the first transmission resource pool, and the second configuration information is for determining the second transmission resource pool. ### Claim 5 (depends on 4) The method according to claim 4, wherein sending, by the access network device, the first configuration information and the second configuration information to the terminal device comprises: sending, by the access network device, radio resource control (RRC) dedicated signaling to the terminal device, wherein the RRC dedicated signaling carries the first configuration information and the second configuration information; or sending, by the access network device, system information to the terminal device, wherein the system information carries the first configuration information and the second configuration information. ### Claim 6 (depends on 4) The method according to claim 4, the method further comprising: when a sensing result is obtained from the second transmission resource pool, the second transmission resource pool is for the terminal device to select a second transmission resource in the second transmission resource obtaining manner, and the second transmission resource is for carrying the V2X message. ### Claim 7 An apparatus comprising: one or more processors; and a memory, wherein the memory stores instructions, and when executing the instructions stored in the memory using the one or more processors, the apparatus executes operations comprising: obtaining first configuration information and second configuration information, wherein the first configuration information is for determining a first transmission resource pool, the second configuration information is for determining a second transmission resource pool, a manner of obtaining a transmission resource from the first transmission resource pool is a first transmission resource obtaining manner, the first transmission resource obtaining manner is a random selection manner, a manner of obtaining a transmission resource from the second transmission resource pool is a second transmission resource obtaining manner in which a transmission resource is selected after channel sensing is performed on the second transmission resource pool for sensing duration T2; selecting a first transmission resource from the first transmission resource pool in the first transmission resource obtaining manner when a sensing result is not obtained from the second transmission resource pool; and sending a vehicle to X (V2X) message on the first transmission resource. ### Claim 8 (depends on 7) The apparatus according to claim 7, wherein the operations further comprise: obtaining, a second transmission resource from the second transmission resource pool in the second transmission resource obtaining manner, and sending the V2X message on the second transmission resource, when a sensing result is obtained from the second transmission resource pool. ### Claim 9 (depends on 7) The apparatus according to claim 7, wherein the operations further comprise: obtaining preconfigured first configuration information and preconfigured second configuration information; or receiving radio resource control (RRC) dedicated signaling from an access network device, and obtain the first configuration information and the second configuration information from the RRC dedicated signaling; or receiving system information from the access network device, and obtain the first configuration information and the second configuration information from the system information. ### Claim 10 An apparatus, comprising: one or more processors; and a memory, wherein the memory stores instructions, and when executing the instructions stored in the memory using the one or more processors, the apparatus executes operations comprising: determining a first transmission resource pool and a second transmission resource pool, the first transmission resource pool is for a terminal device to select a transmission resource from the first transmission resource pool in a first transmission resource obtaining manner, the first transmission resource obtaining manner is a random selection manner, the second transmission resource pool is for the terminal device to select a transmission resource from the second transmission resource pool in a second transmission resource obtaining manner, and the second transmission resource obtaining manner is a transmission resource obtaining manner in which a transmission resource is selected after channel sensing is performed on the second transmission resource pool for sensing duration T2, when a sensing result is not obtained from the second transmission resource pool, the first transmission resource pool is for the terminal device to select a first transmission resource in the first transmission resource obtaining manner, the first transmission resource is for carrying a vehicle to X (V2X) message; and sending first configuration information and second configuration information to the terminal device, wherein the first configuration information is for determining the first transmission resource pool, and the second configuration information is for determining the second transmission resource pool. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein the operations further comprise: sending radio resource control (RRC) dedicated signaling to the terminal device, wherein the RRC dedicated signaling carries the first configuration information and the second configuration information; or sending system information to the terminal device, wherein the system information carries the first configuration information and the second configuration information. ### Claim 12 (depends on 10) The apparatus according to claim 10, wherein the operations further comprise: when a sensing result is obtained from the second transmission resource pool, the second transmission resource pool is for the terminal device to select a second transmission resource in the second transmission resource obtaining manner, and the second transmission resource is for carrying the V2X message.