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OFDMA competition method and access point

A technology of access point and competition period, which is applied in the field of OFDMA competition method and access point, can solve the problems such as the small number of successful competition sites and the decrease of system throughput, and achieve the goal of improving throughput, increasing the number of sites, and facilitating popularization and application Effect

Active Publication Date: 2014-09-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Embodiments of the present invention provide an OFDMA competition method and an access point to solve the problem in the prior art that the number of successful competition stations is small, resulting in a decrease in system throughput

Method used

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  • OFDMA competition method and access point
  • OFDMA competition method and access point

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Embodiment Construction

[0086] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0087] The invention is suitable for OFDMA multi-subchannel competition system. When the number of stations that succeed in the first competition does not reach a certain threshold, multiple rounds of competition can be initiated continuously to increase the number of stations that succeed in the competition, thereby increasing the throughput of the system.

[0088] Th...

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Abstract

Disclosed are an OFDMA contention method and an access point. The present invention relates to the field of computer communications. The OFDMA contention method comprises: an access point receiving, over a subchannel, a contention request frame sent by a station, and determining whether the sum of the number of stations succeeding in a contention in a current channel contention period and the number of stations succeeding in a history contention is smaller than a preset threshold; if yes, triggering the station to enter a next channel contention period, and repeating the step in which an access point receives, over a subchannel, a contention request frame sent by a station, and determines whether the sum of the number of stations succeeding in a contention in a current channel contention period and the number of stations succeeding in a history contention is smaller than a preset threshold, until the number of stations succeeding in a contention is greater than the preset threshold. By means of the OFDMA contention method and the access point, a contention can continue to be triggered when the number of stations initially succeeding in a contention is smaller than a threshold, so as to increase the number of stations succeeding in a contention and further increase the throughput of an OFDMA system.

Description

technical field [0001] The invention relates to the technical fields of computer and communication, in particular to an OFDMA competition method and an access point. Background technique [0002] In WLAN (Wireless local access network, wireless local area network), the competition mechanism of CSMA / CA (Carrier sense multiple access with collision avoidance, carrier sense multiple access with collision avoidance) is adopted. The time for initiating the competition in this competition mechanism is determined by the STA (Station, station) according to the channel status it monitors. Since this is a completely distributed competition mechanism that does not require a central controller, it is very suitable for site competition in unlicensed frequency bands, such as ISM (Industrial Scientific Medical), TVWS and other frequency bands. Moreover, in CSMA / CA, the contention window will increase with the number of collisions, so it can adapt to various scenarios with different number...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/10H04W74/08
CPCH04W74/08H04W84/12H04W74/0825H04W72/12H04W72/30H04W24/02
Inventor 李云波伍天宇张连波
Owner HUAWEI TECH CO LTD
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