Resource allocation method, access point, and station

Patent metadata

Field	Value
Publication number	US-10397901-B2
Application number	US-201715443373-A
Country	US
Kind code	B2
Filing date	Feb 27, 2017
Priority date	Aug 29, 2014
Publication date	Aug 27, 2019
Grant date	Aug 27, 2019

Abstract

The present application provide a resource allocation method, an access point, and a station. The method includes: determining a resource allocation sequence of N stations in a wireless local area network and a position of a resource allocated to each station in the N stations; determining resource allocation information according to the resource allocation sequence of the N stations and the position of the resource allocated to each station in the N stations, where the resource allocation information is used to reflect a relative position of the resource allocated to each station in the N stations; and sending resource indication information, so that each station in the N stations obtains, according to the resource indication information, the position of the resource allocated to each station. The method utilizes redundancy between indication information of different stations, so signaling overheads of resource indication information can be reduced.

First claim

What is claimed is:

1. An access point, comprising:
a memory; and
a processor coupled to the memory and configured to:
determine resource allocation information according to a resource allocation sequence of N stations and a position of the resource allocated to each station in the N stations, wherein the resource allocation information is used to reflect a position of the resource allocated to each station in the N stations relative to a first station of the N stations; and
send resource indication information, so that each station in the N stations obtains, according to the resource indication information, the position of the resource allocated to each station relative to the first station of the N stations, wherein the resource indication information is used to indicate the resource allocation sequence of the N stations and the resource allocation information, and N is greater than or equal to 2,
wherein a channel resource of a wireless local area network is divided into multiple resource block units, and
the processor is further configured to:
re-number resource block units in the multiple resource block units excluding resource block units allocated to first i−1 stations in the N stations, wherein 2≤i<N; and
determine resource allocation information of an i th station according to numbers of the resource block units in the multiple resource block units excluding the resource block units allocated to the first i−1 stations in the N stations and a position of a resource allocated to the i th station.

2. The access point according to claim 1 , wherein the resource allocation information of the i th station in the N stations comprises a sub-bitmap, and each bit in the sub-bitmap represents whether a resource block unit corresponding to each bit is allocated to the i th station.

3. The access point according to claim 1 , wherein the resource allocation information of the i th station comprises a start number of a resource block unit allocated to the i th station in the resource block units in the multiple resource block units excluding the resource block units allocated to the first i−1 stations in the N stations and comprises an offset relative to the start number.

4. A station, comprising:
a memory; and
a processor coupled to the memory and configured to:
receive resource allocation information sent by an access point, wherein the resource allocation information is used to indicate a resource allocation sequence of N stations and resource allocation information, the resource allocation information is used to reflect a position of a resource allocated to each station in the N stations relative to a first station of the N stations, and N is greater than or equal to 2; and
determine, according to the resource allocation information, a position of a resource allocated to the station,
wherein a channel resource of the wireless local area network is divided into multiple resource block units, and
wherein the resource allocation information of the i th station in the N stations comprises a start number of a resource block unit allocated to the i th station in the resource block units in the multiple resource block units other than the resource block units allocated to the first i−1 stations in the N stations and comprises an offset relative to the start number.

5. The station according to claim 4 , wherein resource allocation information of the station is used to instruct the station to obtain, according to the resource allocation information of the station, a position of a resource block unit allocated to the station, and
determine, according to the resource allocation information of the station, the position of the resource block unit allocated to the station.

6. The station according to claim 5 , wherein the resource allocation information comprises a sub-bitmap, and each bit in the sub-bitmap represents whether a resource block unit corresponding to each bit is allocated to the station corresponding to the sub-bitmap, and
the processor is further configured to determine, according to the sub-bitmap of the station, the position of the resource block unit allocated to the station.

7. A resource allocation method in a wireless local area network, comprising:
determining resource allocation information according to a resource allocation sequence of N stations and a position of the resource allocated to each station in the N stations, wherein the resource allocation information is used to reflect a position of the resource allocated to each station in the N stations relative to a first station of the N stations; and
sending resource indication information, so that each station in the N stations obtains, according to the resource indication information, the position of the resource allocated to each station relative to the first station of the N stations, wherein the resource indication information is used to indicate the resource allocation sequence of the N stations and the resource allocation information, and N is greater than or equal to 2,
wherein a channel resource of the wireless local area network is divided into multiple resource block units, and the determining resource allocation information according to the resource allocation sequence of the N stations and the position of the resource allocated to each station in the N stations comprises:
re-numbering resource block units in the multiple resource block units excluding resource block units allocated to first i−1 stations in the N stations, wherein 2≤i<N; and
determining resource allocation information of an i th station according to numbers of the resource block units in the multiple resource block units excluding the resource block units allocated to the first i−1 stations in the N stations and a position of a resource allocated to the i th station.

8. The method according to claim 7 , wherein the resource allocation information of the i th station in the N stations comprises a sub-bitmap, and each bit in the sub-bitmap represents whether a resource block unit corresponding to each bit is allocated to the i th station.

9. The method according to claim 7 , wherein the resource allocation information of the i th station comprises a start number of a resource block unit allocated to the i th station in the resource block units in the multiple resource block units other than the resource block units allocated to the first i−1 stations in the N stations and comprises an offset relative to the start number.

10. A resource allocation method in a wireless local area network, comprising:
receiving, by a station, resource allocation information sent by an access point, wherein the resource allocation information is used to indicate a resource allocation sequence of N stations and resource allocation information, the resource allocation information is used to reflect a position of a resource allocated to each station in the N stations relative to a first station of the N stations, and N is greater than or equal to 2; and
determining, by the station according to the resource allocation information, a position of a resource allocated to the station,
wherein a channel resource of the wireless local area network is divided into multiple resource block units, and
wherein the resource allocation information of the i th station in the N stations comprises a start number of a resource block unit allocated to the i th station in the resource block units in the multiple resource block units other than the resource block units allocated to the first i−1 stations in the N stations and comprises an offset relative to the start number.

11. The method according to claim 10 , wherein resource allocation information of the station i

Assignees

• Huawei Tech Co Ltd

Inventors

• Wu Weimin
• Lou Jun
• Gong Shanshan
• Yang Xun
• Liu Sheng

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/003

  Arrangements for allocating sub-channels of the transmission path · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04L1/1614

  using bitmaps · CPC title