Sensing signal transmission method and apparatus

A sensing signal transmission method, comprising:

• receiving, by a network device, a first message from a terminal device, wherein the first message comprises information for requesting the network device to allocate a sensing resource to the terminal device;
• allocating, by the network device, the sensing resource to the terminal device based on the first message;
• and
• sending, by the network device, a second message to the terminal device, wherein the second message comprises the sensing resource allocated to the terminal device, wherein, when a one-way propagation delay Tr of a sensing signal is greater than a one-way propagation delay Tc of a communication signal, the sensing resource allocated to the terminal device comprises a first frame structure, a sensing window of an uplink frame in the first frame structure is used by the terminal device to send the sensing signal, a length L of the sensing window meets 2(Tr−Tc)≤L≤M, and M is a length of the uplink frame.

A sensing signal transmission apparatus for a terminal device, comprising:

• a processor,
• a memory coupled to the processor to store instructions, which when executed by the processor, cause the processor to:
• send a first message to a network device, wherein the first message comprises information for requesting the network device to allocate a sensing resource to the terminal device;
• receive a second message from the network device, wherein the second message comprises the sensing resource allocated to the terminal device;
• and
• send a sensing signal on the sensing resource allocated to the terminal device, wherein, when a one-way propagation delay Tr of the sensing signal is greater than a one-way propagation delay Tc of a communication signal, the sensing resource allocated to the terminal device comprises a first frame structure, a sensing window of an uplink frame in the first frame structure is used to send the sensing signal, a length L of the sensing window meets 2(Tr−Tc)≤L≤M, and M is a length of the uplink frame.