V2X message sending method, apparatus, and system

A method comprising:

• determining a first 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,
• wherein the first transmission resource pool is for the terminal device to select a first transmission resource in the first transmission resource obtaining manner based on that a sensing result is not obtained from a second transmission resource pool,
• wherein the first transmission resource is for carrying a vehicle to X (V2X) message, and
• wherein 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 a sensing duration (T2);
• and
• sending first configuration information to the terminal device, wherein the first configuration information is for determining the first transmission resource pool.

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, wherein the first configuration information is for determining a first 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;
• selecting a first transmission resource from the first transmission resource pool in the first transmission resource obtaining manner based on that a sensing result is not obtained from a second transmission resource pool, wherein 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 a sensing duration (T2);
• and
• sending a vehicle to X (V2X) message on the first transmission resource.

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,
• 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,
• wherein the first transmission resource pool is for the terminal device to select a first transmission resource in the first transmission resource obtaining manner based on that a sensing result is not obtained from a second transmission resource pool,
• wherein the first transmission resource is for carrying a vehicle to X (V2X) message, and
• wherein a manner of obtaining a transmission resource from the second transmission resource pool is a second transmission resource obtaining manner in which the transmission resource is selected after channel sensing is performed on the second transmission resource pool for a sensing duration (T2);
• and
• sending first configuration information to the terminal device, wherein the first configuration information is for determining the first transmission resource pool.