Method and device for cooperative communication of multiple access points

A technology of collaborative communication and access point, applied in the field of communication, can solve the problems of affecting channel utilization, reducing channel utilization, limited number of large-bandwidth channels, etc.

Pending Publication Date: 2022-03-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a WLAN can include multiple APs, and the number of large-bandwidth channels is limited, so that the channels of two APs with overlapping coverage may be the same or overlap, resulting in a high probability of conflict betwee

Method used

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  • Method and device for cooperative communication of multiple access points
  • Method and device for cooperative communication of multiple access points
  • Method and device for cooperative communication of multiple access points

Examples

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Embodiment Construction

[0029] The embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0030] see figure 1 , the present application provides a WLAN network architecture, where the WLAN includes multiple APs, and each AP can be accessed by at least one STA. For each AP in the WLAN, the AP works on one channel. The bandwidth of the channel on which the AP works is relatively large. For example, the AP works on an 80Mhz channel or a 160Mhz channel.

[0031] Optionally, the channel includes multiple sub-channels. See for example figure 2 , for an 80Mhz channel, the channel may include a first sub-channel, a second sub-channel, a third sub-channel and a fourth sub-channel, and the four sub-channels are all 20Mhz sub-channels.

[0032] For any AP in the WLAN, for ease of description, this AP is referred to as the first AP, and the first AP can transmit data on its working channel. Before using the channel to transmit data...

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PUM

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Abstract

The invention discloses a method and device for cooperative communication of multiple access points, and belongs to the field of communication. The method comprises: a first access point (AP) sends a collaboration frame to APs in a collaboration group, the collaboration frame instructing at least one AP in the collaboration group and the first AP to perform collaboration operation within an effective time period, the collaboration group comprising a plurality of APs working on the same channel, and the first AP operating on the same channel; the first AP is the AP acquiring the channel access opportunity in the cooperative group, and the time length of the effective time period exceeds the time length of one transmission opportunity TXOP. The application can improve the channel utilization rate.

Description

technical field [0001] The present application relates to the communication field, and in particular to a method and device for coordinated communication of multiple access points. Background technique [0002] A wireless local area network (wireless local area network, WLAN) includes an access point (access point, AP) and a station (station, STA), and the AP is used to provide wireless coverage for the STA to access. [0003] With the development of technology, the channel bandwidth that the AP can work on is getting larger and larger. For example, an AP in a 5G network can work on a large bandwidth channel such as 80 megahertz (Mhz) or 160Mhz. At present, a WLAN can include multiple APs, and the number of large-bandwidth channels is limited, so that the channels of two APs with overlapping coverage may be the same or overlap, resulting in a high probability of conflict between the two APs, which in turn leads to poor channel utilization. reduce. For example, when the tw...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W28/04H04W84/12H04W88/08
CPCH04L5/0078H04W28/04H04W84/12H04W88/08Y02D30/50H04L5/0091H04L5/0035H04L5/0055H04W74/002H04W74/0808H04W92/20H04W16/10
Inventor 杨博文季晨荷王云贵
Owner HUAWEI TECH CO LTD
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