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Link construction method and device based on competition type MAC

A construction method and link technology, applied in the field of data transmission, can solve the problems of bandwidth waste, asymmetry of sending data bandwidth and receiving data bandwidth, etc., to reduce bandwidth waste, improve channel utilization, and improve user experience.

Active Publication Date: 2017-06-06
HUNAN KEAYSHARE COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a link construction method and device based on contention-based MAC to construct a link with an asymmetric transmission data bandwidth and reception data bandwidth, and solve the problem of bandwidth waste introduced by random backoff

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  • Link construction method and device based on competition type MAC
  • Link construction method and device based on competition type MAC
  • Link construction method and device based on competition type MAC

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Embodiment Construction

[0040] 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 and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0041] Please refer to figure 1 , figure 1 It is a flow chart of a contention-based MAC-based link construction method provided by an embodiment of the present invention. The method is applied to a wireless device and may include:

[0042] Step 101: After competing for the right to access the channel, send the data frame located in the sen...

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Abstract

The invention discloses a link construction method and device based on competition type MAC, and is applied to a wireless device. The method includes the following steps: when the right of access to a channel is obtained by competition, sending data frames located in a sending buffer zone, and judging whether the data frames are sent successfully; if the data frames are sent successfully, judging whether the number of the data frames that are sent is larger than a threshold value; if the number of the data frames is not larger than the threshold value, continuing to send data frames; and if the number of the data frames is larger than the threshold value, competing for the right of access to the channel again. The method provided by the invention introduces the threshold value which can be updated in real time according to the number of data frames to be sent which are retained in the sending buffer zone of a wireless device and conditions of a sending channel, so that sending bandwidth and receiving bandwidth of the wireless device are inconsistent and an asymmetric link is formed, in addition, sending bandwidth of wireless devices can be inconsistent, the right to use the channel tends to belong to the wireless device that needs to send a large number of data frames, and bandwidth waste brought by random back-off is reduced.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a contention-based MAC link construction method and device. Background technique [0002] With the development of science and technology in modern society, data transmission technology has developed rapidly along with the popularization of computer applications. MAC (Media Access Control Protocol) defines how data packets are transmitted on the medium. No matter in the traditional wired local area network (LAN) or in the current popular wireless local area network (WLAN), the MAC protocol is widely used. [0003] The CSMA / CA protocol defined by 802.11 (carrier sense multiple access with collision avoidance, a kind of MAC protocol) is currently the most typical and popular competitive MAC layer protocol, which is widely used in Ad-hoc networks. After the wireless devices of this protocol are networked, through random backoff competition, they can obtain the access cont...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/0808H04W74/0816H04W74/0833
Inventor 王德刚
Owner HUNAN KEAYSHARE COMM TECH CO LTD
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