Resource determining method and device
A resource determining method and device are provided. The method may be performed by a terminal device, including: determining a remaining frequency domain resource in a resource pool according to a sub-channel size; and using the remaining frequency domain resource as a first sub-channel independently, or containing the remaining frequency domain resource in the resource pool within a second sub-channel.
1 . A resource determining method, performed by a terminal device, comprising:
determining a remaining frequency domain resource in a resource pool according to a sub-channel size, wherein a size of the remaining frequency domain resource is less than the sub-channel size; and
using the remaining frequency domain resource as a first sub-channel independently, or containing the remaining frequency domain resource in the resource pool within a second sub-channel.
2 . The method according to claim 1 , further comprising: determining a first resource in the resource pool.
3 . The method according to claim 2 , wherein the first resource is a scheduled resource, or the first resource is a resource of second-stage Sidelink Control Information (SCI).
4 . The method according to claim 2 , wherein the first resource is a measurement resource for measuring at least one of the following: a Channel Busy Rate (CBR) or a Channel occupancy Rate (CR).
5 . The method according to claim 3 , wherein the first resource does not comprise the first sub-channel.
6 . The method according to claim 3 , wherein the first resource comprises the first sub-channel and a second resource,
the second resource comprises at least a third sub-channel, and a number of the third sub-channel is adjacent to that of the first sub-channel.
7 . The method according to claim 6 , wherein when the first resource is the scheduled resource, the method further comprises:
determining a frequency domain indication bit size of Downlink Control Information (DCI) or SCI according to N+1 sub-channels; or
determining the frequency domain indication bit size of DCI or SCI according to N sub-channels, wherein
a quantity of sub-channels in the resource pool is N+1, and N is a positive integer.
8 . The method according to claim 6 , wherein when the first resource is the scheduled resource, the method further comprises: determining a first Transport Block Size (TBS) according to the first resource.
9 . The method according to claim 6 , wherein when the first resource is the scheduled resource, the method further comprises: performing at least one of the following according to the first resource:
resource determining of the second-stage SCI; or
resource mapping of the second-stage SCI.
10 . The method according to claim 1 , wherein the first sub-channel is used to transmit at least one of the following: a Physical Sidelink Control CHannel (PSCCH) or a special Physical Sidelink Shared CHannel (PSSCH).
11 . The method according to claim 1 , wherein
a number of the first sub-channel is a maximum number or a minimum number in the resource pool; or
a number of the second sub-channel is the maximum number or the minimum number in the resource pool.
12 . The method according to claim 3 , wherein the first resource comprises the second sub-channel.
13 . The method according to claim 12 , wherein when the first resource is the scheduled resource, the method further comprises:
determining a frequency domain indication bit size of DCI or SCI according to N sub-channels, wherein a quantity of sub-channels in the resource pool is N, and N is a positive integer.
14 . The method according to claim 12 , wherein when the first resource is the scheduled resource, the method further comprises: determining a third Transport Block Size (TBS) according to the first resource.
15 . The method according to claim 12 , wherein when the first resource is the scheduled resource, the method further comprises: performing at least one of the following according to the first resource:
resource determining of the second-stage SCI; or
resource mapping of the second-stage SCI.
16 . The method according to claim 4 , wherein the measurement resource of the CBR or the CR comprises the remaining frequency domain resource.
17 . The method according to claim 4 , wherein the measurement resource of the CBR or the CR does not comprise the remaining frequency domain resource.
18 . The method according to claim 1 , wherein the remaining frequency domain resource further meets the following:
the remaining frequency domain resource is determined by a bandwidth of the resource pool and the sub-channel size configured by a higher layer.
19 . A terminal device, comprising:
a memory storing computer-readable instructions; and
a processor coupled to the memory and configured to execute the computer-readable instructions, wherein the computer-readable instructions, when executed by the processor, cause the processor to perform operations comprising:
determining a remaining frequency domain resource in a resource pool according to a sub-channel size, wherein a size of the remaining frequency domain resource is less than the sub-channel size; and
using the remaining frequency domain resource as a first sub-channel independently, or containing the remaining frequency domain resource in the resource pool within a second sub-channel.
20 . A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:
determining a remaining frequency domain resource in a resource pool according to a sub-channel size, wherein a size of the remaining frequency domain resource is less than the sub-channel size; and
using the remaining frequency domain resource as a first sub-channel independently, or containing the remaining frequency domain resource in the resource pool within a second sub-channel.