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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: 2017-08-29
HUAWEI TECH CO LTD
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  • 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

The invention discloses an OFDMA competition method and an access point, and relates to the field of computer communication. The OFDMA competition method includes: the access point receives the competition request frame sent by the station on the sub-channel, and judges whether the sum of the number of stations successfully competing in the current channel competition period and the number of stations successfully competing in history is less than a predetermined threshold, and if so, Trigger the station to enter the next channel competition period, repeat the execution of the access point receiving the competition request frame sent by the station on the sub-channel and judging whether the sum of the number of stations that have successfully competed in the current channel competition period and the number of stations that have successfully competed in history is less than The step of pre-determining the threshold, until the number of successfully competing stations is greater than or equal to the pre-determined threshold. The OFDMA competition method and access point can continue to initiate competition when the number of stations that successfully compete for the first time is less than a certain threshold, so as to increase the number of stations that successfully compete, thereby improving the throughput of the 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 Patents(China)
IPC IPC(8): H04W48/10H04W74/08
CPCH04W84/12H04W74/0825H04W72/12H04W72/30H04W24/02
Inventor 李云波伍天宇张连波
Owner HUAWEI TECH CO LTD
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