Method and device for cooperative communication of multiple access points

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...

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 between the two APs, which in turn leads to poor channel utilization. reduce

For example, when the two APs transmit data on their respective working channels at the same time, conflicts will occur and the channel utilization will be affected.

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