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Method and device for group configuration and arrangement of wireless station in wireless local area network

A wireless local area network and wireless station technology, applied in the field of communication, can solve problems such as no technical mechanism

Inactive Publication Date: 2012-11-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, standards and technologies are still in the research stage for DL ​​MU-MIMO. At present, despite the above-mentioned technical suggestions, there is still no relevant technical mechanism to support AP's group (Group) management of stations.

Method used

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  • Method and device for group configuration and arrangement of wireless station in wireless local area network
  • Method and device for group configuration and arrangement of wireless station in wireless local area network
  • Method and device for group configuration and arrangement of wireless station in wireless local area network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] This embodiment is aimed at method 1, assuming that there are two stations STA100 and STA200, where STA200 has been assigned the spatial data stream O in group 3 by the AP, the process of group configuration and management in this embodiment is as follows figure 2 shown;

[0077] Step S1: The AP sends the GROUP management frame A to the STA 100, the content of which is shown in Table 5 below:

[0078] table 5

[0079] Sequence (the number of each field in the management frame)

Parameter information

1

VHT (management frame type identification)

2

1 (management frame operation code)

3

100 (STA logo)

4

3 (group ID)

5

1 (spatial data stream identification)

6

1 (management action ID)

[0080] Step S2: After receiving the frame, STA100 sets that it belongs to group 3, and its received spatial data flow number is 1;

[0081] Step S3: The AP sends the spatial data stream, and se...

Embodiment 2

[0084] In this embodiment, for method two, it is assumed that there are 20 stations STA100-STA120, 10 STA groups, each group corresponds to 4 spatial data streams, and the group member information identification table field uses 10 binary codes to identify the group described by the STAs, The spatial data stream identification table uses 20 binary bits to identify the position of the spatial data stream in the group to which the STA belongs.

[0085] Step S1: The AP sends the GROUP management frame A to the STA 100 in unicast mode, the content of which is shown in Table 6 below:

[0086] Table 6

[0087] Sequence (the number of each field in the management frame)

Parameter information

1

VHT (management frame type identification)

2

2 (management frame operation code)

3

100 (STA logo)

4

1000000000 (group member information identification table)

5

01000000000000000000 (group location identification tab...

Embodiment 3

[0092] In this embodiment, for method four, it is assumed that there are 9 stations STA100, STA200, STA300, STA400, STA500, STA600, STA700, STA800, and STA900, and there is no group-related management information pre-associated at present. This embodiment performs group configuration and management process such as image 3 shown;

[0093] Step S1: The AP sends the GROUP management frame B to all stations, the content of which is shown in Table 7 below:

[0094] Table 7

[0095]

[0096] Step S2: each station STA receives the management frame B, and judges whether the STA identification list of the received management frame contains its own STA identification, and if so, executes step S3, otherwise stops or does not receive the spatial data flow;

[0097] Step S3, the STA station determines the location of the spatial data stream that should be received according to the location of the STA identifier in the list, specifically:

[0098] STA100 receives the GROUP management...

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Abstract

The invention discloses a method and a device for group configuration and arrangement of a wireless station in a wireless local area network. According to the method and the device, the group configuration and the arrangement of the wireless station in a system which uses a downlink multi-user multiple input multiple output (MU-MIMO) technology are achieved. A network side sends a management frame to a station (STA), the management frame comprises group management parameters and spatial data stream receiving parameters, the group management parameters are used for configuring a group to which the STA belongs, the spatial data stream receiving parameters are used for configuring spatial data streams received by the STA, and after receiving the management frame, the STA conducts the group configuration in accordance with group management parameters and receives spatial data streams in accordance with spatial data stream receiving parameters. Therefore, the MU-MIMO function supporting the downlink in the wireless local area network is achieved.

Description

technical field [0001] The invention relates to a wireless local area network system in the communication field, in particular to a group management method for a wireless station. Background technique [0002] The development of wireless LAN technology is getting faster and faster. The International Standards Organization has released the 802.11n standard in 2009, and is now studying the 802.11ac standard with a network throughput of 1G / s, which is currently being formulated. [0003] In the process of 802.11ac standard research, researchers borrowed the technical concept of "Multi User-Multiple Input Multiple Output (MU-MIMO)" from other wireless 3G technology fields, and applied it in AP (Access Point , access point) and STA (station, Station) during data transmission. The Multiple Input Multiple Output (MIMO) system uses multiple transmit antennas and receive antennas to send and receive data, which can effectively suppress channel multipath fading, without increasing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W84/12
CPCH04W48/08H04W8/186H04W84/12
Inventor 张德智张俊剑张博山
Owner ZTE CORP