Data transmission method for medium access control (MAC) layer in wireless local area network

Abstract

The invention discloses a data transmission method for a medium access control (MAC) layer in a wireless local area network, which is used for supporting the application of a network coding technology. A transmission flow is applied to a scene that two clients in a basic service set (BSS) in the wireless local area network forward data through an access point (AP); when a source client has data required to be transmitted, the network coding technology can be selected and an application request is sent; if the AP accepts the request for data transmission by using the network coding technology and a receiving client has data to be sent to the source client, the AP can accomplish the data transmission in a specific flow by using the network coding technology; and the AP performs network coding on the received data from the source client and the receiving client, and broadcasts the processed data to the source client and the receiving client. Under the condition of relatively more data directly transmitted by the two clients, channel resources can be fully utilized, time for channel competition is saved, and the service efficiency of resources of the MAC layer is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method of MAC layer in a wireless local area network, which is used to support the application of network coding technology. Background technique [0002] WLAN (Wireless Local Area Networks, wireless local area network) provides a wireless connection service of local area network, which can provide high-speed wireless data access, and has been widely used in cities, public places, enterprises, buildings, homes and other places. Compared with the traditional wired access method, the wireless local area network makes the use of the network more free, and completely gets rid of the shackles of cables and port positions. Moreover, the wireless local area network has the advantages of being easy to carry and move, eliminating or reducing the complexity of the network. Wiring, you only need to place one or more AP (Access Point, access point) devices to estab...

AI Technical Summary

Problems solved by technology

[0005] When the data interaction between the two sites is frequent, the above data forwarding process will waste a lot of resources. The data from the site to the AP and from the AP to the site must go through a distributed channel competition process before the data is sent, so the two sites complete a data exchange. It needs to go through four channel competition processes and four data transmission processes

[0006] Specifically, the source station obtains the right to use the channel through channel competition and transmits the data to the AP, and the AP needs to undergo channel competition to transmit the data to the receiving station; correspondingly, the receiving station obtains the right to use the channel through channel competition and transmits the data For the AP, the AP needs to undergo channel competition to transmit data to the source site, thus wasting time and channel resources

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