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Transmission opportunity holder changing method and device

A transmission opportunity, holder technology, applied in transmission systems, digital transmission systems, error prevention/detection using return channels, etc., can solve problems such as inability to reply to message transmission, message transmission failure, etc.

Active Publication Date: 2017-05-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for changing transmission opportunity holders, which are used to solve the problem that in the prior art, when an AP and a station perform message transmission, stations other than the TXOP holder may not be able to reply to the message transmission, which in turn leads to message transmission failure.

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  • Transmission opportunity holder changing method and device
  • Transmission opportunity holder changing method and device
  • Transmission opportunity holder changing method and device

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Embodiment Construction

[0033] The embodiment of the present invention is applicable to WLAN, and the WLAN mainly adopts IEEE802.11 series standards. Wherein, the WLAN may include multiple basic service sets (Basic Service Set, BSS for short), and each BSS includes an AP and multiple STAs associated with the AP. figure 1 A schematic diagram of the application scenario architecture of the transmission opportunity holder change method provided by the present invention, as shown in figure 1 In the network shown, one BSS includes one access point (Access Point, AP for short) and three stations (Station, STA for short): STA1, STA2, and STA3.

[0034] Among them, it should be noted that if the transmission data sent by STA1 can be detected by AP and STA2, but the remote STA3 can only detect the transmission data sent by AP but cannot detect the transmission data sent by STA1, the AP and STA1 In terms of STA3 is a hidden node.

[0035] Specifically, the AP is also called a wireless access point or a hotsp...

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Abstract

The embodiment of the invention provides a transmission opportunity holder changing method and device. The method comprises: a site sends a request frame which comprises an address field corresponding to the transmission opportunity holder, and the address field corresponding to the transmission opportunity holder is filled with an address of an access point (AP); and the site receives a response frame replied by the AP according to the request frame, wherein the site is the site for obtaining a channel access right. In the embodiment, the address field corresponding to the TXOP holder in the request frame is filled with the address of the AP, the sites receiving the request frames set the address of the AP as the address of the TXOP holder so as to successfully transfer the TXOP holder right to the AP and realize the scheduling of the sites by employing the AP.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method and device for changing transmission opportunity holders. Background technique [0002] At present, the standards mainly adopted by the Wireless Local Area Network (WLAN for short) are Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE for short) 802.11 series. Specifically, the IEEE802.11 standard works on an unlicensed spectrum, wherein a carrier sense multiple access with collision avoidance (CSMA / CA for short) is a basic mechanism for accessing a channel. The principle is that the station (Station, referred to as STA) listens to the channel first. If the channel is idle for a certain length of time, the backoff counter starts to backoff. When the backoff counter value decreases to 0, it means that the station has obtained the channel access right, and then can use This channel is used for data transmission. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04W74/08H04W84/12
CPCH04L1/1614H04L1/1685H04W74/0833H04W84/12H04L1/16
Inventor 李云波李彦淳淦明
Owner HUAWEI TECH CO LTD