Communication method, device, access point device and station device of wireless local area network

Abstract

The present invention provides a wireless local area network communication method, device, access point equipment, and station equipment, wherein the wireless local area network communication method includes: generating a wake-up beacon frame, the wake-up beacon frame contains part of time synchronization information, part of time synchronization The information is used to instruct the site equipment to perform time synchronization without waking up the main communication interface of the site equipment; to send a wake-up beacon frame; after sending a specified number of wake-up beacon frames according to the preset time interval, a beacon frame is generated, and the beacon frame contains Time synchronization information, the time synchronization information is used to instruct the main communication interface of the site device to perform time synchronization; and send a beacon frame. The technical solution of the present invention reduces the possibility of time out-of-synchronization between the station equipment and the access point equipment, and improves spectrum utilization and data throughput on the premise that the station equipment supports the sleep mode.

Description

technical field [0001] The present invention relates to the technical field of communication networks, in particular, to a communication method of a wireless local area network, a communication device of a wireless local area network, an access point device and a station device. Background technique [0002] In July 2016, IEEE (Institute of Electrical and Electronic Engineers, Institute of Electrical and Electronics Engineers) 802.11 established the next-generation Wi-Fi (Wireless Fidelity, Wireless Fidelity) technology research group WUR (Wake up Receiver), namely IEEE (Institute of Electrical and Electronic Engineers, Institute of Electrical and Electronics Engineers) 802.11ba, which is mainly used in the Internet of Things, aims to save power consumption of devices as much as possible. [0003] A wake up frame is defined in the IEEE 802.11ba standard, its main purpose is to wake up the main communication interface of the communication device, that is, the communication de...

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Problems solved by technology

[0004] In the related art, a WUR beacon frame (that is, a wake-up beacon frame) is defined, and the frame body part of the WUR beacon frame carries a PTSF (partial time synchronization function, partial time synchronization parameter), which is used to indicate that the secondary communication interface is in In sleep mode, it can maintain time synchronization with the access point. However, because the WUR frame carries some time synchronization information parameters, if the communication device is in sleep mode for a long time, it may not be able to completely solve the problem of time synchronization, and the main communication device of the site device There is no time synchronization in sleep mode, so the longer the sleep mode lasts, the more prone to loss of synchronization between the station device and the access point device

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