Frequency domain resource allocation method and apparatus
Example frequency domain resource allocation methods and apparatus are described. One example method includes determining M frequency domain resources according to a predetermined frequency domain resource allocation rule, and performing communication on one or more of the M frequency domain resources. Any two of the M frequency domain resources do not overlap. Each of the M frequency domain resources is associated with one piece of quasi-colocation (QCL) information, and any two of the M frequency domain resources are associated with different QCL information.
1. A frequency domain resource allocation method, comprising:
determining M frequency domain resources, wherein M is an integer greater than 1, any two of the M frequency domain resources do not overlap, each of the M frequency domain resources is associated with one piece of quasi-colocation (QCL) information, and any two of the M frequency domain resources are associated with different QCL information; and
sending or receiving data on one or more of the M frequency domain resources, wherein:
when a precoding resource group (PRG) size is 2 or 4, the M frequency domain resources are determined by using a PRG as a frequency domain resource allocation unit, wherein determining the M frequency domain resources comprises determining an m th frequency domain resource in the M frequency domain resources, wherein the m th frequency domain resource comprises an (M*i+m) th frequency domain resource allocation unit in N frequency domain resource allocation units comprised in scheduled bandwidth of a terminal device, the scheduled bandwidth is bandwidth comprising at least one PRB used for data transmission, N is a positive integer, m is an integer greater than 0 and less than or equal to M, and i=0, 1, . . . ,
⌈
N
M
⌉
-
1.
or
when a PRG size is wideband, the M frequency domain resources are determined by using
⌈
W
M
⌉
physical resource blocks (PRBs) as a frequency domain resource allocation unit, wherein W is a quantity of PRBs comprised in scheduled bandwidth of a terminal device, and W is an integer greater than 1.
2. The method according to claim 1 , wherein when the PRG size is 2 or 4, M=2, a first frequency domain resource in the M frequency domain resources comprises a PRG whose index is an even number, and a second frequency domain resource in the M frequency domain resources comprises a PRG whose index is an odd number.
3. The method according to claim 1 , wherein when the PRG size is the wideband, an m th frequency domain resource in the M frequency domain resources comprises one or more PRBs ranging from a
(
⌈
W
M
⌉
(
m
-
1
)
+
1
)
t
h
PRB to a
(
⌈
W
M
⌉
m
)
th
PRB in the scheduled bandwidth, an M th frequency domain resource in the M frequency domain resources comprises a remaining PRB in the scheduled bandwidth, and m is an integer greater than 0 and less than M.
4. The method according to claim 1 , wherein M=2, a first frequency domain resource in the M frequency domain resources comprises first
⌈
W
M
⌉
PRBs in the scheduled bandwidth, and a second frequency domain resource in the M frequency domain resources comprises last
a
W
M
a
PRBs in the scheduled bandwidth.
5. The method according to claim 1 , wherein
when the PRG size is 2 or 4, the M frequency domain resources are determined according to a predetermined frequency domain resource allocation rule by using the PRG as the frequency domain resource allocation unit; or
when the PRG size is the wideband, the M frequency domain resources are determined based on the W PRBs comprised in the scheduled bandwidth and according to a predetermined frequency domain resource allocation rule.
6. A frequency domain resource allocation apparatus, comprising:
at least one processor configured with processor-executable instructions to perform operations comprising:
determining M frequency domain resources, wherein M is an integer greater than 1, any two of the M frequency domain resources do not overlap, each of the M frequency domain resources is associated with one piece of quasi-colocation (QCL) information, and any two of the M frequency domain resources are associated with different QCL information; and
sending or receiving data on one or more of the M frequency domain resources, wherein:
when a precoding resource group (PRG) size is 2 or 4, the M frequency domain resources are determined by using a PRG as a frequency domain resource allocation unit, wherein determining the M frequency domain resources comprises determining an m th frequency domain resource in the M frequency domain resources, wherein the m th frequency domain resource comprises an (M*i+m) th frequency domain resource allocation unit in N frequency domain resource allocation units comprised in scheduled bandwidth of a terminal device, the scheduled bandwidth is bandwidth comprising at least one PRB used for data transmission, N is a positive integer, m is an integer greater than 0 and less than or equal to M, and i=0, 1, . . . ,
⌈
N
M
⌉
-
1
;
or
when a PRG size is wideband, the M frequency domain resources are determined by using
⌈
W
M
⌉
physical resource blocks (PRBs) as a frequency domain resource allocation unit, wherein W is a quantity of PRBs comprised in scheduled bandwidth of a terminal device, and W is an integer greater than 1.
7. The apparatus according to claim 6 , wherein when the PRG size is 2 or 4, M=2, a first frequency domain resource in the M frequency domain resources comprises a PRG whose index is an even number, and a second frequency domain resource in the M frequency domain resources comprises a PRG whose index is an odd number.
8. The apparatus according to claim 6 , wherein when the PRG size is the wideband, an m th frequency domain resource in the M frequency domain resources comprises one or more PRBs ranging from a
(
⌈
W
M
⌉
(
m
-
1
)
+
1
)
th
PRB to a
(
⌈
W
M
⌉
m
)
th
PRB in the scheduled bandwidth, an M th frequency domain resource in the M frequency domain resources comprises a remaining PRB in the scheduled bandwidth, and m is an integer greater than 0 and less than M.
9. The apparatus according to claim 6 , wherein M=2, a first frequency domain resource in the M frequency domain resources comprises first
⌈
W
M
⌉
PRBs in the scheduled bandwidth, and a second frequency domain resource in the M frequency domain resources comprises last
a
W
M
a
PRBs in the scheduled bandwidth.
10. The apparatus according to claim 6 , wherein
when the PRG size is 2 or 4, the M frequency domain resources are determined according to a predetermined frequency domain resource allocation rule by using the PRG as the frequency domain resource allocation unit; or
when the PRG size is the wideband, the M frequency domain resources are determined based on the W PRBs comprised in the scheduled bandwidth and according to a predetermined frequency domain resource allocation rule.
11. The apparatus according to claim 6 , wherein:
the frequency domain resource allocation apparatus is a terminal device; and
the operations comprise: receiving the data on the one or more of the M frequency domain resources.
12. The apparatus according to claim 6 , wherein:
the frequency domain resource allocation apparatus is a network device; and
the operations comprise: sending the data on the one or more of the M frequency domain resources.
13. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores program instructions for execution by at least one processor to perform:
determining M frequency domain resources, wherein M is an integer greater than 1, any two of the M frequency domain resources do not overlap, each of the M frequency domain resources is associated with one piece of quasi-colocation (QCL) information, and any two of the M frequency domain resources are associated with different QCL information; and
sending or receiving data on one or more of the M frequency domain resources, wherein:
when a precoding resource group (PRG) size is 2 or 4, the M frequency domain resources are determined by using a PRG as a frequency domain resource allocation unit, wherein determining the M frequency domain resources comprises determining an m th frequency domain resource in the M frequency domain resources, wherein the m th frequency domain resource comprises an (M*i+m) th frequency domain resource allocation unit in N frequency domain resource allocation units comprised in scheduled bandwidth of a terminal device, the scheduled bandwidth is bandwidth comprising at least one PRB used for data transmission, N is a positive integer, m is an integer greater than 0 and less than or equal to M, and i=0, 1, . . . ,
⌈
N
M
⌉
-
1.
or
when a PRG size is wideband, the M frequency domain resources are determined by using
⌈
W
M
⌉
physical resource blocks (PRBs) as a frequency domain resource allocation unit, wherein W is a quantity of PRBs comprised in scheduled bandwidth of a terminal device, and W is an integer greater than 1.
14. The non-transitory computer-readable storage medium according to claim 13 , wherein when the PRG size is 2 or 4, M=2, a first frequency domain resource in the M frequency domain resources comprises a PRG whose index is an even number, and a second frequency domain resource in the M frequency domain resources comprises a PRG whose index is an odd number.
15. The non-transitory computer-readable storage medium according to claim 13 , wherein when the PRG size is the wideband, an m th frequency domain resource in the M frequency domain resources comprises one or more PRBs ranging from a
(
⌈
W
M
⌉
(
m
-
1
)
+
1
)
th
PRB to a
(
⌈
W
M
⌉
m
)
th
PRB in the scheduled bandwidth, an M th frequency domain resource in the M frequency domain resources comprises a remaining PRB in the scheduled bandwidth, and m is an integer greater than 0 and less than M.
16. The non-transitory computer-readable storage medium according to claim 13 , wherein M=2, a first frequency domain resource in the M frequency domain resources comprises first
⌈
W
M
⌉
PRBs in the scheduled bandwidth, and a second frequency domain resource in the M frequency domain resources comprises last
a
W
M
a
PRBs in the scheduled bandwidth.
17. The non-transitory computer-readable storage medium according to claim 13 , wherein
when the PRG size is 2 or 4, the M frequency domain resources are determined according to a predetermined frequency domain resource allocation rule by using the PRG as the frequency domain resource allocation unit; or
when the PRG size is the wideband, the M frequency domain resources are determined based on the W PRBs comprised in the scheduled bandwidth and according to a predetermined frequency domain resource allocation rule.