Method and apparatus for sending ranging signal, method and apparatus for receiving ranging signal, devices and readable storage medium
A method for sending a ranging signal performed by a first terminal includes determining first indication information for sending a first ranging signal. The first indication information is configured to indicate a transmission parameter of the first ranging signal, and the transmission parameter includes at least one of a time-frequency resource or a physical layer parameter for sending the first ranging signal. The method further includes sending the first ranging signal to a second terminal based on the transmission parameter.
1 . A method for sending a ranging signal, performed by a first terminal, the method comprising:
determining first indication information for sending a first ranging signal, wherein the first indication information is configured to indicate a transmission parameter of the first ranging signal, wherein the transmission parameter of the first ranging signal comprises control information indicating whether the first terminal sends the first ranging signal to a second terminal, the transmission parameter of the first ranging signal further comprises a time-frequency resource and a physical layer parameter for sending the first ranging signal; and
sending the first ranging signal to the second terminal based on the transmission parameter;
wherein, determining the first indication information for sending the first ranging signal, comprises:
generating the first indication information for sending the first ranging signal; and
the method further comprising:
sending the first indication information to the second terminal;
wherein sending the first indication information to the second terminal comprises:
sending sidelink control information (SCI) to the second terminal, wherein the SCI is configured to indicate the transmission parameter of the first ranging signal;
wherein the method further comprises:
sending second indication information to the second terminal, wherein the second indication information is configured to indicate sending a transmission parameter of a second ranging signal for the second terminal, the transmission parameter of the second ranging signal comprises control information indicating whether the second terminal sends the second ranging signal to the first terminal, the transmission parameter of the second ranging signal further comprises a physical layer parameter for sending the second ranging signal, a time-frequency resource for sending the second ranging signal is based on the time-frequency resource for sending the first ranging signal.
2 . The method according to claim 1 , wherein, the first indication information indicates the transmission parameter of the first ranging signal by at least one of following:
a first indication field in the first indication information;
a first format corresponding to the first indication information; or,
a first channel parameter corresponding to a physical layer channel for transmitting the first indication information.
3 . The method according to claim 1 , wherein, determining the first indication information for sending the first ranging signal, comprises:
receiving the first indication information sent by the second terminal.
4 . The method according to claim 3 , wherein, receiving the first indication information sent by the second terminal, comprises:
receiving sidelink control information (SCI) sent by the second terminal, wherein the SCI is configured to indicate the transmission parameter of the first ranging signal.
5 . The method according to claim 1 , wherein,
the transmission parameter of the second ranging signal comprises resource information about a time-frequency resource occupied by the second ranging signal.
6 . The method according to claim 1 , wherein, indication of a resource index is a frequency domain resource used by physical sidelink control channel (PSCCH) transmission carrying SCI.
7 . The method according to claim 1 , wherein,
the transmission parameter of the first ranging signal comprises resource information about a time-frequency resource occupied by the first ranging signal.
8 . The method according to claim 7 , wherein, the resource information about the time-frequency resource occupied by the first ranging signal indicates a first frequency-domain resource used for transmission associated with the first indication information, wherein the first ranging signal is transmitted via the first frequency-domain resource.
9 . The method according to claim 7 , wherein, the resource information about the time-frequency resource occupied by the first ranging signal indicates a reserved time-frequency resource, wherein the first ranging signal is transmitted via a part of the reserved time-frequency resource, and the reserved time-frequency resource is a time-frequency resource used for a subsequent sidelink transmission.
10 . The method according to claim 9 , wherein in a case where the SCI comprises a current time-frequency resource and the reserved time-frequency resource, the SCI indicates whether the first terminal sends the first ranging signal to the second terminal in a current sidelink transmission and/or in the subsequent sidelink transmission, the current time-frequency resource is a time-frequency resource used for the current sidelink transmission.
11 . The method according to claim 7 , wherein,
the resource information about the time-frequency resource occupied by the first ranging signal indicates a second time-frequency domain resource, wherein the second time-frequency domain resource is a time-frequency domain resource for transmitting the first ranging signal.
12 . The method according to claim 11 , wherein,
the second time-frequency resource is indicated based on at least one of following:
a sidelink resource pool transmitting the first indication information;
a sidelink bandwidth part (BWP) transmitting the first indication information; or
a resource index of a ranging resource.
13 . The method according to claim 12 , wherein the second time-frequency resource is indicated based on a sidelink bandwidth part (BWP) transmitting the first indication information.
14 . The method according to claim 13 , wherein the time-frequency resource for transmitting the first ranging signal uses a BWP used for transmitting the SCI, an offset value of a frequency domain initial position relative to the BWP indicates a frequency domain initial position of the first ranging signal, a subcarrier interval of the BWP used for transmitting the SCI indicates a frequency domain width occupied by the first ranging signal, and a transmission time interval between the first ranging signal and the SCI is indicated by a slot corresponding to the BWP and an OFDM symbol length.
15 . A method for receiving a ranging signal, performed by a second terminal, the method comprising:
determining first indication information for receiving a first ranging signal, wherein the first indication information is configured to indicate a transmission parameter of the first ranging signal, wherein the transmission parameter of the first ranging signal comprises control information indicating whether a first terminal sends the first ranging signal to the second terminal, the transmission parameter of the first ranging signal further comprises a time-frequency resource and a physical layer parameter for receiving the first ranging signal; and
receiving the first ranging signal sent by the first terminal based on the transmission parameter;
wherein determining the first indication information for receiving the first ranging signal comprises:
receiving the first indication information sent by the first terminal;
wherein receiving the first indication information sent by the first terminal comprises:
receiving sidelink control information (SCI) sent by the first terminal, wherein the SCI is configured to indicate the transmission parameter of the first ranging signal;
wherein the method further comprises:
receiving second indication information sent by the first terminal, wherein the second indication information is configured to indicate sending a transmission parameter of a second ranging signal for the second terminal, the transmission parameter of the second ranging signal comprises control information indicating whether the second terminal sends the second ranging signal to the first terminal, the transmission parameter of the second ranging signal further comprises a physical layer parameter for sending the second ranging signal, a time-frequency resource for sending the second ranging signal is based on the time-frequency resource for sending the first ranging signal.
16 . The method according to claim 15 , wherein, the first indication information indicates the transmission parameter of the first ranging signal by at least one of following:
a first indication field in the first indication information;
a first format corresponding to the first indication information; or,
a first channel parameter corresponding to a physical layer channel for transmitting the first indication information.
17 . A terminal, comprising:
a processor;
a transceiver connected to the processor; and
a memory configured to store an executable signaling of the processor;
wherein, the processor is configured to load and execute executable instructions to implement the method for receiving a ranging signal of claim 15 .
18 . A terminal, comprising:
a processor;
a transceiver connected to the processor; and
a memory configured to store an executable signaling of the processor;
wherein, the processor is configured to:
determine first indication information for sending a first ranging signal, wherein the first indication information is configured to indicate a transmission parameter of the first ranging signal, wherein the transmission parameter of the first ranging signal comprises control information indicating whether the terminal sends the first ranging signal to a second terminal, the transmission parameter of the first ranging signal further comprises a time-frequency resource and a physical layer parameter for sending the first ranging signal; and
send the first ranging signal to the second terminal based on the transmission parameter;
wherein the processor is configured to determine the first indication information for sending the first ranging signal, by:
generating the first indication information for sending the first ranging signal; and
the processor is further configured to:
send the first indication information to the second terminal;
wherein the processor is further configured to send the first indication information to the second terminal, by:
send sidelink control information (SCI) to the second terminal, wherein the SCI is configured to indicate the transmission parameter of the first ranging signal;
wherein the processor is further configured to send second indication information to the second terminal, wherein the second indication information is configured to indicate sending a transmission parameter of a second ranging signal for the second terminal, the transmission parameter of the second ranging signal comprises control information indicating whether the second terminal sends the second ranging signal to the terminal, the transmission parameter of the second ranging signal further comprises a physical layer parameter for sending the second ranging signal, a time-frequency resource for sending the second ranging signal is based on the time-frequency resource for sending the first ranging signal.