Method for establishing association in wireless local area network, access point and station

Abstract

Embodiments of the present invention provide a method for establishing association in a WLAN, an access point and a station. The method includes: sending an association message to a group of STAs including multiple station STAs in the wireless local network WLAN; sending a first notification to the group of STAs, wherein the first notification carries the identification information of each STA and each STA the scheduling order information; receiving the response messages sent by the group of STAs sequentially according to the scheduling order in the first notification to the association message. According to the embodiment of the present invention, in the process of associating STAs with the AP, the AP arranges a scheduling order for a selected group of STAs, and the group of STAs can send response messages to the AP in turn according to the scheduling order without competing for channels, reducing contention The number of channels speeds up the process of associating STAs with APs and ensures that STAs used for key applications can quickly establish associations with APs.

Description

technical field [0001] Embodiments of the present invention relate to the field of wireless communication, and more specifically, relate to a method, an access point, and a station for establishing an association in a wireless local area network (Wireless Local Area Network, WLAN for short). Background technique [0002] In the application of WLAN systems, application scenarios such as sensors, smart grids, smart meters, and mobile data bypass are receiving more and more attention. In this type of application, a large number of stations (Station, STA for short) may exist in a Basic Service Set (BSS for short). In some application scenarios, a BSS may support up to 6000 STAs. If a large number of STAs in the system need to associate with the Access Point (AP for short), since each STA association process requires multiple channel competitions, serious collision problems will cause system congestion and require a long time to complete the association process of all STAs. Fo...

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Problems solved by technology

[0003] 1) Power outages on transmission lines lead to mass restarts of smart grid devices, sensors or smart meter devices;

[0004] 2) AP power reset causes all devices to lose association with AP

When there are business types that require high delay in the system, such as health monitoring sensors, fire alarm sensors, etc., too long association time cannot meet business needs

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