Signal sending method, priority configuration method, and device
Disclosed are a signal sending method, a priority configuration method, and a device. The signal sending method includes: determining that S signals overlap in time domain; determining M signals in the S signals based on a maximum transmit power of a terminal device and priorities of the S signals, where the S signals include n sidelink signals and k uplink signals, n is a positive integer, k is an integer greater than or equal to 0, a total transmit power of the M signals is less than or equal to the maximum transmit power, and M is a positive integer; and sending the M signals. In embodiments of this application, a plurality of sidelink signals may be simultaneously sent, or a sidelink signal and an uplink signal may be simultaneously sent, thereby resolving a problem that currently a sidelink signal and an uplink signal cannot be simultaneously sent.
1. A signal sending method, comprising:
determining M sidelink signals in S sidelink signals based on a maximum transmit power of a terminal device and priorities of the S sidelink signals, wherein:
a total transmit power of the M sidelink signals is less than or equal to the maximum transmit power,
M is a positive integer,
the S sidelink signals overlap in time domain, S is an integer greater than or equal to 2,
and the S sidelink signals are signals carried on a physical sidelink feedback channel (PSFCH), and
S is a positive integer; and
sending the M sidelink signals, wherein a transmit power of each of the M sidelink signals is P/M, and P is the maximum transmit power, the M signals have the same priority.
2. The method according to claim 1 , wherein the determining M sidelink signals in the S sidelink signals based on a maximum transmit power of a terminal device and priorities of the S sidelink signals comprises:
when a total transmit power of the S sidelink signals is greater than the maximum transmit power, determining the M sidelink signals in the S sidelink signals based on the maximum transmit power and the priorities of the S sidelink signals.
3. The method according to claim 1 , wherein priorities of the M sidelink signals are higher than priorities of S−M sidelink signals other than the M sidelink signals in the S sidelink signals.
4. The method according to claim 1 , wherein
the maximum transmit power is a maximum transmit power supported by a capability of the terminal device; or
the maximum transmit power is a maximum transmit power configured by a network device for the terminal device; or
the maximum transmit power is a maximum transmit power determined by the terminal device based on a maximum transmit power supported by a capability of the terminal device and a maximum transmit power configured by a network device for the terminal device.
5. The method according to claim 1 , wherein M=S, and the total transmit power of the S sidelink signals is less than or equal to the maximum transmit power.
6. An apparatus, comprising:
one or more processors; and
a memory, wherein the memory stores instructions for execution by the one or more processors, that prompt the apparatus to perform the steps of:
determining M sidelink signals in S sidelink signals based on a maximum transmit power of the terminal device and priorities of the S sidelink signals, wherein:
a total transmit power of the M sidelink signals is less than or equal to the maximum transmit power,
M is a positive integer,
the S sidelink signals overlap in time domain, and
S is an integer greater than or equal to 2, wherein the S sidelink signals are signals carried on a physical sidelink feedback channel (PSFCH), S is a positive integer; and
sending the M sidelink signals, wherein a transmit power of each of the M sidelink signals is P/M, and P is the maximum transmit power, the M signals have the same priority.
7. The apparatus according to claim 6 , wherein
when a total transmit power of the S sidelink signals is greater than the maximum transmit power, determining the M sidelink signals in the S sidelink signals based on the maximum transmit power and the priorities of the S sidelink signals.
8. The apparatus according to claim 6 , wherein priorities of the M sidelink signals are higher than priorities of S−M sidelink signals other than the M sidelink signals in the S sidelink signals.
9. The apparatus according to claim 6 , wherein
the maximum transmit power is a maximum transmit power supported by a capability of the terminal device; or
the maximum transmit power is a maximum transmit power configured by a network device for the terminal device; or
the maximum transmit power is a maximum transmit power determined by the terminal device based on a maximum transmit power supported by a capability of the terminal device and a maximum transmit power configured by a network device for the terminal device.
10. The apparatus according to claim 6 , wherein M=S, and the total transmit power of the S sidelink signals is less than or equal to the maximum transmit power.