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Speed adjusting method via cross-level-analysis for WLAN

A wireless local area, rate adjustment technology, applied in the direction of correct operation test, error prevention/detection using return channel, etc., can solve problems such as transmission failure

Active Publication Date: 2010-05-05
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a cross-layer rate adjustment method, which is used to quickly adjust the transmission rate to comply with channel changes, and also proposes a compensation mechanism to solve the problems that occur when transmission fails

Method used

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  • Speed adjusting method via cross-level-analysis for WLAN
  • Speed adjusting method via cross-level-analysis for WLAN
  • Speed adjusting method via cross-level-analysis for WLAN

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Embodiment Construction

[0035] figure 1 It is a flow chart of the rate adjustment method through cross-layer analysis for the wireless local area network of the present invention. Among them, the present invention specifically focuses on whether the sending end successfully receives the return packet, and adopts different mechanisms to determine the transmission rate of the next transmission.

[0036] The wireless local area network cross-layer rate adjustment method of the present invention, such as figure 1As shown, in step 200, the media access control layer (MAC) in the transmitting end first judges whether the received return packet is successful, and when the return packet is received successfully, in step 300, the media access control layer (MAC) selects to use the simplified The direct rate adjustment mechanism of the mode determines the transmission rate of the next transmission packet; and when receiving the return packet is unsuccessful, in step 400, the media access control layer (MAC) c...

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Abstract

The related speed regulation method in wireless LAN comprises: pre-setting error ratio of package; once in the ratio, creating simple entity mode list with entity transmission rate and corresponding SNR opposite to the entity on transmission end; applying media access control layer first with initial speed to transmit the package to receive end; deciding whether the resend package succeeds from receive end; if yes, applying said control layer to calculate SNR and corresponding regulate transmission rate; or else, applying lower rate in next time. This invention also provides corresponding compensation mechanism.

Description

technical field [0001] The present invention relates to a rate adjustment method of a wireless local area network, in particular to a communication system with multiple sets of transmission rates, in which a transmission rate is selected from various transmission rates of the physical layer through the media access control layer. A method for adjusting the cross-layer rate of a local area network. Background technique [0002] Wireless communication is a communication method that uses the transmission of radio waves to achieve information transmission. Its origin is quite long, and it is widely used in many aspects, such as military, navigation, aviation, scientific research and so on. As for the service used to provide public correspondence, it is a matter of recent decades. Since the development of cellular mobile communication technology, it has greatly promoted the use of wireless communication technology in people's livelihood. [0003] The development of wireless co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/12H04L1/24
Inventor 王莅君颜光男陈铭宾刘维正杨裕仁黄炳荣
Owner IND TECH RES INST
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