Sensing signal transmission method and apparatus
This application provides a sensing signal transmission method and apparatus, so that transmission of a sensing signal can be coordinated by using a communication resource. This helps reduce interference between sensing nodes. The method includes: A terminal device sends a first message to a network device, where the first message includes information for requesting the network device to allocate a sensing resource to the terminal device. The network device receives the first message from the terminal device, allocates the sensing resource to the terminal device based on the first message, and sends a second message to the terminal device, where the second message includes the sensing resource allocated to the terminal device. The terminal device receives the second message from the network device, and sends a sensing signal on the allocated sensing resource.
1 . A sensing signal transmission method, comprising:
sending, by a terminal device, 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;
receiving, by the terminal device, a second message from the network device, wherein the second message comprises the sensing resource allocated to the terminal device; and
sending, by the terminal device, a sensing signal on the sensing resource allocated to the terminal device, wherein, when a one-way propagation delay T r of the sensing signal is greater than a one-way propagation delay T c 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(T r −T c )≤L≤M, and M is a length of the uplink frame.
2 . The method according to claim 1 , wherein the first message further indicates that the terminal device has a sensing function.
3 . The method according to claim 2 , wherein the second message further indicates that the network device allows the terminal device to enable the sensing function.
4 . The method according to claim 1 , wherein the first message further comprises interference information and a category of the interference information.
5 . The method according to claim 1 , further comprising:
sending, by the terminal device, a third message to the network device, wherein the third message indicates whether the terminal device has a sensing receiver.
6 . The method according to claim 1 , wherein a communication interface of the terminal device is configured to send the first message or receive the second message, and a logic circuit of the terminal device is configured to obtain the sensing resource allocated to the terminal device based on the second message.
7 . The method according to claim 1 , wherein the sensing resource comprises at least one of a hardware resource, a computing resource, a time resource, a space resource, or a frequency resource.
8 . 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 T r of a sensing signal is greater than a one-way propagation delay T c 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(T r −T c )≤L≤M, and M is a length of the uplink frame.
9 . The method according to claim 8 , wherein the first message further indicates that the terminal device has a sensing function.
10 . The method according to claim 9 , wherein the second message indicates that the network device allows the terminal device to enable the sensing function.
11 . The method according to claim 8 , wherein the first message further comprises interference information and a category of the interference information.
12 . The method according to claim 8 , further comprising:
receiving, by the network device, a third message from the terminal device, wherein the third message indicates whether the terminal device has a sensing receiver.
13 . The method according to claim 8 , wherein a communication interface of the network device is configured to receive the first message or send the second message, and a logic circuit of the network device is configured to allocate the sensing resource to the terminal device based on the first message.
14 . The method according to claim 8 , wherein the sensing resource comprises at least one of a hardware resource, a computing resource, a time resource, a space resource, or a frequency resource.
15 . 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 T r of the sensing signal is greater than a one-way propagation delay T c 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(T r −T c )≤L≤M, and M is a length of the uplink frame.
16 . The apparatus according to claim 15 , wherein the first message indicates that the terminal device has a sensing function.
17 . The apparatus according to claim 16 , wherein the second message indicates that the network device allows the terminal device to enable the sensing function.
18 . The apparatus according to claim 15 , wherein the first message further comprises interference information and a category of the interference information.
19 . The apparatus according to claim 15 , the memory comprising further instructions, which when executed by the processor, cause the processor to:
send a third message to the network device, wherein the third message comprises information indicating whether the terminal device has a sensing receiver.
20 . The apparatus according to claim 15 , wherein the sensing resource comprises at least one of a hardware resource, a computing resource, a time resource, a space resource, or a frequency resource.