Communication method, apparatus, and system
In the method of present application, a terminal device obtains resource indication information. The resource indication information is used to indicate frequency domain resources in a control resource set. The resource indication information comprises S bits, where S is a positive integer. The terminal device determines the frequency domain resources in the control resource set based on the resource indication information, thereby improving communication efficiency of a network system.
1. A communication method, comprising:
receiving, by a terminal device from a base station, resource indication information, wherein the resource indication information indicates frequency domain resources in a control resource set for the terminal device, the resource indication information comprising S bits, S being a positive integer, wherein
a most significant bit (MSB) in the S bits indicates whether a resource block set belongs to the frequency domain resources in the control resource set for the terminal device, and
the resource block set has m consecutive resource blocks of a bandwidth part (BWP), the m consecutive resource blocks being adjacent to n consecutive resource blocks starting from a start resource block of the BWP, the n consecutive resource blocks not belonging to the control resource set for the terminal device, wherein
n<m, wherein n is equal to m minus y2, wherein y2 is equal to a second offset mod m, y2 is unequal to 0, and the second offset is an offset between a start resource block of a common index area and the start resource block of the BWP; and
determining, by the terminal device, the frequency domain resources in the control resource set based on the resource indication information.
2. The method according to claim 1 , wherein
the common index area further comprises one or more BWPs.
3. The method according to claim 1 , wherein the resource block set indicated by the first MSB is a first resource block set, and wherein
a second most significant bit in the S bits indicates whether a second resource block set having m consecutive resource blocks belong to the frequency domain resources in the control resource set for the terminal device, the m consecutive resource blocks in the second resource block set being adjacent to the m resource blocks in the first resource block set, and S>1.
4. The method according to claim 1 , wherein
when the resource block set has m consecutive resource blocks starting from the start resource block of the BWP, S satisfies S=└(X2−m)/m┘+1; or
when the resource block set has the m resource blocks adjacent to the n consecutive resource blocks starting from the start resource block of the BWP, S satisfies S=└(X2−n)/m┘, wherein
└ ┘ indicates rounding-down, and X2 is a quantity of resource blocks in the BWP.
5. The method according to claim 1 , wherein
the resource indication information is a bitmap.
6. The method according to claim 1 , wherein
m is 6.
7. The method according to claim 1 , wherein
the frequency domain resources in the control resource set comprises a plurality of resource blocks, wherein
the determining the frequency domain resources in the control resource set based on the resource indication information comprises:
determining index information of the plurality of resource blocks based on the resource indication information.
8. The method according to claim 1 , wherein
each of the S bits corresponds one resource block set, and each of the S bits indicates whether a corresponding resource block set in the BWP belongs to the frequency domain resources in the control resource set.
9. An wireless 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 processor executes the following steps:
receiving resource indication information, wherein the resource indication information indicates frequency domain resources in a control resource set for a terminal device: and
determining the frequency domain resources in the control resource set based on the resource indication information, wherein
the resource indication information comprises S bits, wherein
a most significant bit (MSB) in the S bits indicates whether a resource block set belongs to the frequency domain resources in the control resource set for the terminal device, a quantity of resource blocks comprised in the resource block set is m, S being a positive integer, and
the resource block set has m consecutive resource blocks of a bandwidth part (BWP), the m consecutive resource blocks being starting from a start resource block of a bandwidth part (BWP), or
the resource block set is m resource blocks adjacent to n consecutive resource blocks starting from a start resource block of the BWP, wherein
the n consecutive resource blocks do not belong to the control resource set for the terminal device, wherein n<m, wherein n is equal to m minus y2, wherein y2 is equal to a second offset mod m, y2 is unequal to 0, and the second offset is an offset between a start resource block of a common index area and the start resource block of the BWP.
10. The apparatus according to claim 9 , wherein
the common index area further comprises one or more BWPs.
11. The apparatus according to claim 9 , wherein the resource block set indicated by the first MSB is a first resource block set, and wherein
a second most significant bit in the S bits indicates whether a second resource block set having m consecutive resource blocks belong to the frequency domain resources in the control resource set for the terminal device, the m consecutive resource blocks in the second resource block set being adjacent to the m resource blocks in the first resource block set, and S>1.
12. The apparatus according to claim 9 , wherein
when the resource block set has m consecutive resource blocks starting from the start resource block of the BWP, S satisfies S=└(X2−m)/m┘+1; or
when the resource block set has the m resource blocks adjacent to the n consecutive resource blocks starting from the start resource block of the BWP, S satisfies S=└(X2−n)/m┘, wherein
└ ┘ indicates rounding-down, and X2 is a quantity of resource blocks in the BWP.
13. The apparatus according to claim 9 , wherein
the resource indication information is a bitmap.
14. The apparatus according to claim 9 , wherein
m is 6.
15. The apparatus according to claim 9 , wherein
the frequency domain resources in the control resource set comprises a plurality of resource blocks, wherein
the steps further comprise: determining index information of the plurality of resource blocks based on the resource indication information.
16. The apparatus according to claim 9 , wherein
each of the S bits corresponds one resource block set, and each of the S bits is used to indicate whether a corresponding resource block set in the BWP is the frequency domain resources in the control resource set.
17. A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause a user equipment (UE) to carry out steps of:
receiving resource indication information, wherein the resource indication information indicates frequency domain resources in a control resource set for a terminal device, the resource indication information comprising S bits, S being a positive integer, wherein
a most significant bit (MSB) in the S bits indicates whether a resource block set belongs to the frequency domain resources in the control resource set for the terminal device, and
the resource block set has m consecutive resource blocks of a bandwidth part (BWP), the m consecutive resource blocks being adjacent to n consecutive resource blocks starting from a start resource block of the BWP, the n consecutive resource blocks not belonging to the control resource set for the terminal device,
wherein n<m, wherein n is equal to m minus y2, wherein y2 is equal to a second offset mod m, y2 is unequal to 0, and the second offset is an offset between a start resource block of a common index area and the start resource block of the BWP;
determining the frequency domain resources in the control resource set based on the resource indication information.
18. The non-transitory computer-readable storage medium according to claim 17 , wherein the common index area further comprises one or more BWPs.
19. The non-transitory computer-readable storage medium according to claim 17 , wherein the resource block set indicated by the first MSB is a first resource block set, and wherein
a second most significant bit other than the most significant bit in the S bits indicates whether a second resource block set having m consecutive resource blocks belong to the frequency domain resources in the control resource set for the terminal device, the m consecutive resource blocks in the second resource block set being adjacent to the m resource blocks in the first resource block set, and S>1.
20. The non-transitory computer-readable storage medium according to claim 17 , wherein
when the resource block set consists of m consecutive resource blocks starting from the start resource block of the BWP, S satisfies S=└(X2−m)/m┘+1; or
when the resource block set consists of the m resource blocks adjacent to the n consecutive resource blocks starting from the start resource block of the BWP, S satisfies S=└(X2−n)/m┘, wherein
└ ┘ indicates rounding-down, and X2 is a quantity of resource blocks in the BWP.
21. The non-transitory computer-readable storage medium according to claim 17 , wherein
the resource indication information is a bitmap.
22. The non-transitory computer-readable storage medium according to claim 17 , wherein
m is 6.
23. The method according to claim 1 , wherein
when the second offset is not an integer multiple of m, the resource block set consists of m consecutive resource blocks adjacent to n consecutive resource blocks starting from the start resource block of the BWP.
24. The method according to claim 23 , wherein
when the second offset is an integer multiple of m, the resource block set consists of m consecutive resource blocks starting from a start resource block of the BWP.
25. The apparatus according to claim 9 , wherein
when the second offset is not an integer multiple of m, the resource block set consists of m consecutive resource blocks adjacent to n consecutive resource blocks starting from the start resource block of the BWP.
26. The apparatus according to claim 25 , wherein
when the second offset is an integer multiple of m, the resource block set consists of m consecutive resource blocks starting from a start resource block of the BWP.
27. The non-transitory computer-readable storage medium according to claim 17 , wherein
when the second offset is not an integer multiple of m, the resource block set consists of m consecutive resource blocks adjacent to n consecutive resource blocks starting from the start resource block of the BWP.
28. The non-transitory computer-readable storage medium according to claim 27 , wherein
when the second offset is an integer multiple of m, the resource block set consists of m consecutive resource blocks starting from a start resource block of the BWP.