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Communication method and device for wireless local area network

A technology of a wireless local area network and a communication method, applied in the field of communication methods and devices of a wireless local area network, capable of solving problems such as unfavorable site energy saving, inability to know the sending time of a trigger frame, etc., and achieving the effect of improving communication efficiency

Active Publication Date: 2020-12-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In broadcast TWT, not all beacon frames contain TWT information units, so when a dormant station wakes up and has data to upload, the received beacon frames may not contain TWT information units, so it is impossible to know The sending time of the trigger frame. At this time, the station can only monitor the channel until it receives the beacon frame containing the TWT information unit, which is not conducive to the energy saving of the station.

Method used

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  • Communication method and device for wireless local area network
  • Communication method and device for wireless local area network
  • Communication method and device for wireless local area network

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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0052] It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: Global System of Mobile communication (Global System of Mobile communication, referred to as "GSM") system, Code Division Multiple Access (Code Division Multiple Access, referred to as "GSM") system CDMA") system, Wideband Code Division Multiple Access (referred to as "WCDMA") system, General P...

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Abstract

A communication method for a wireless local area network, capable of improving communication efficiency. It includes: the station receives the first beacon frame sent by the access point, the first beacon frame includes first indication information, and the first indication information is used to indicate the sending time of the second beacon frame, wherein the second beacon frame is A beacon frame including a target wake-up time TWT information element; the station receives the second beacon frame according to the indication of the first indication information.

Description

technical field [0001] The present invention relates to the communication field, in particular to a communication method and device for a wireless local area network in the communication field. Background technique [0002] In order to improve the energy saving efficiency of the nodes in the wireless local area network, the 802.11ah standard introduces a Target Wake Time (TWT, Target Wake Time) mechanism. Under the TWT mechanism, the station and the access point can agree on the wake-up time, keep active during the wake-up time, and communicate (or data exchange), so that they can sleep at times other than the wake-up time to achieve the purpose of energy saving . According to different methods of agreeing the wake-up time, the TWT mechanism is divided into broadcast TWT and request TWT. [0003] In broadcast TWT, the access point broadcasts a TWT information element (IE, Information element) through a beacon frame (Beacon Frame). Communication, and dormant at other times...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W84/12
CPCH04W52/0229H04W52/0248H04W84/12H04W52/0216Y02D30/70H04L43/10H04W74/0833
Inventor 郭宇宸杨讯于健林梅露
Owner HUAWEI TECH CO LTD