Method and device for data transmission in wireless local area network

A wireless local area network and data transmission technology, applied in wireless communication, network topology, network traffic/resource management, etc., can solve problems such as large network scale, and achieve the effect of reducing network scale

Inactive Publication Date: 2011-12-21
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the existing method of using data frames to transmit data requires a relatively large network scale

Method used

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  • Method and device for data transmission in wireless local area network
  • Method and device for data transmission in wireless local area network
  • Method and device for data transmission in wireless local area network

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Embodiment Construction

[0024] Generally, after the AP is powered on, it sends a beacon frame when a beacon frame (beacon frame) sending period arrives. Wherein, the Beacon frame is a broadcast management frame, which is used to carry management information (such as network information corresponding to the AP sending the Beacon frame), but is not used to carry data for communication between network devices. see figure 2 , figure 2 It is a schematic structural diagram of a beacon frame in the prior art. like figure 2 As shown, the beacon frame includes at least: a Media Access Control (MAC: Media Access Control) header field and a frame body field. Wherein, the MAC header field includes some types of information, which may include fields such as frame control. The frame body field is used to carry management information, and the maximum length of the management information carried by it is 2312 bytes, which includes fields such as service set identifier (SSID: Service Set Identifier). Usually,...

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Abstract

The present invention provides a method and equipment for data transmission in a wireless local area network, wherein the method is applied in a wireless local area network including more than one access point AP; each AP sends more than one beacon frame; specifying and to be sent In the beacon frame associated with the data, a data cell used to carry data to be sent is defined in the specified beacon frame; the method includes: if the data to be sent currently needs to be sent, when the preset beacon frame sending period arrives, send The data to be sent is carried in a data cell in the specified beacon frame and sent. By adopting the invention, the complexity of data transmission in the network is reduced.

Description

technical field [0001] The invention relates to wireless local area network (WLAN) technology, in particular to a method and device for data transmission in WLAN. Background technique [0002] In a WLAN, it is usually set that a client (station, specifically a wireless client conforming to the 802.11 protocol) only receives data frames sent by its associated (or connected) access point (AP: AccessPoint). Among them, the AP provides the bridging function from the wireless client to the local area network, and realizes frame conversion from wireless to wired and from wired to wireless in the wireless local area network. [0003] see figure 1 , figure 1 A network architecture diagram for realizing data communication provided by the prior art. like figure 1 As shown, client 1 and client 2 are not associated with access point 1, and client 3 is associated with access point 1. In this way, if there is a data frame that currently needs to be sent in the access point 1 (the dat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04W48/08H04W84/12
Inventor 张海洋
Owner NEW H3C TECH CO LTD
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