Method and apparatus for determining sidelink transmission resource
This application provides a method and an apparatus for determining a sidelink transmission resource, and may be applied to systems such as the Internet of vehicles, V2X, and V2V. The method includes: determining a first time domain resource set in a resource selection window; monitoring a second time domain resource set corresponding to the first time domain resource set; and performing resource exclusion and/or resource reporting before a time unit of a first candidate resource, or in the time unit of the first candidate resource, or in a time unit in which resource determining is triggered, where the first time domain resource set is for sidelink transmission, and the first candidate resource is the 1st resource in time domain in the first time domain resource set.
1 . A method, comprising:
determining a first time domain resource set in a resource selection window; and
monitoring a second time domain resource set corresponding to the first time domain resource set, wherein the second time domain resource set is located before the first time domain resource set, and wherein the first time domain resource set is configured for sidelink transmission; and
wherein monitoring the second time domain resource set corresponding to the first time domain resource set comprises:
performing monitoring in a duration T″, wherein the duration T″ meets the following relationship:
T y1 −m≤T″<T y1 −P 1 , wherein T y1 is a time unit of a first candidate resource, the first candidate resource is an earliest resource in time domain in the first time domain resource set, m is a parameter, and P 1 is a preset duration.
2 . The method according to claim 1 , wherein m is 31.
3 . The method according to claim 1 , wherein m is a logical interval including only a quantity of time units in a sidelink resource pool.
4 . The method according to claim 1 , wherein m is a quantity of logical slots.
5 . The method according to claim 1 , wherein P 1 =T proc,0 +T proc,1 , T proc,0 is a processing time required for performing sidelink control information (SCI) decoding, T proc,1 is a sum of a processing time required for a higher layer to complete a final resource selection procedure and a processing time required for preparing to-be-transmitted information.
6 . The method according to claim 1 , wherein a value of m is configured through radio resource control (RRC) signaling.
7 . The method according to claim 1 , wherein the method is performed by a terminal device or a chip in a terminal device.
8 . A communication apparatus, comprising:
one or more processors; and
a memory, wherein the memory stores a computer program, and when executing the computer program stored in the memory, the one or more processors execute operations comprising:
determining a first time domain resource set in a resource selection window; and
monitoring a second time domain resource set corresponding to the first time domain resource set, wherein the second time domain resource set is located before the first time domain resource set, and wherein the first time domain resource set is configured for sidelink transmission; and
wherein monitoring the second time domain resource set corresponding to the first time domain resource set comprises:
performing monitoring in a duration T″, wherein the duration T″ meets the following relationship:
T y1 −m≤T″<T y1 −P 1 , wherein T y1 is a time unit of a first candidate resource, the first candidate resource is an earliest resource in time domain in the first time domain resource set, m is a parameter, and P is a preset duration.
9 . The communication apparatus according to claim 8 , wherein m is 31.
10 . The communication apparatus according to claim 8 , wherein m is a logical interval including only a quantity of time units in a sidelink resource pool.
11 . The communication apparatus according to claim 8 , wherein m is a quantity of logical slots.
12 . The communication apparatus according to claim 8 , wherein P 1 =T proc,0 +T proc,1 , T proc,0 is a processing time required for performing sidelink control information (SCI) decoding, T proc,1 is a sum of a processing time required for a higher layer to complete a final resource selection procedure and a processing time required for preparing to-be-transmitted information.
13 . The communication apparatus according to claim 8 , wherein a value of m is configured through radio resource control (RRC) signaling.
14 . The communication apparatus according to claim 8 , wherein the communication apparatus is a terminal device or a chip in a terminal device.
15 . A non-transitory computer-readable storage medium, comprising:
executable instructions, wherein the executable instructions, when executed by one or more processors of an apparatus, cause the apparatus to execute operations comprising:
determining a first time domain resource set in a resource selection window; and
monitoring a second time domain resource set corresponding to the first time domain resource set, wherein the second time domain resource set is located before the first time domain resource set, and wherein the first time domain resource set is configured for sidelink transmission; and
wherein monitoring the second time domain resource set corresponding to the first time domain resource set comprises:
performing monitoring in a duration T″, wherein the duration T″ meets the following relationship:
T y1 −m≤T″<T y1 −P 1 , wherein T y1 is a time unit of a first candidate resource, the first candidate resource is an earliest resource in time domain in the first time domain resource set, m is a parameter, and P 1 is a preset duration.
16 . The non-transitory computer-readable storage medium according to claim 15 , wherein m is 31.
17 . The non-transitory computer-readable storage medium according to claim 15 , wherein m is a logical interval including only a quantity of time units in a sidelink resource pool.
18 . The non-transitory computer-readable storage medium according to claim 15 , wherein m is a quantity of logical slots.
19 . The non-transitory computer-readable storage medium according to claim 15 , wherein P 1 =T proc,0 +T proc,1 , T proc,0 is a processing time required for performing sidelink control information (SCI) decoding, T proc,1 is a sum of a processing time required for a higher layer to complete a final resource selection procedure and a processing time required for preparing to-be-transmitted information.
20 . The non-transitory computer-readable storage medium according to claim 15 , wherein a value of m is configured through radio resource control (RRC) signaling.