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A buffer-based wireless relay network interference suppression method and system

A wireless relay network and interference suppression technology, which is applied in wireless communication, electrical components, etc., can solve the problems of multi-user fairness and multi-user scheduling not in time, and achieve the effect of improving the effective signal-to-interference-noise ratio and system capacity

Active Publication Date: 2021-01-15
上海伽易信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Problems such as multi-user fairness and untimely multi-user scheduling may occur

Method used

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  • A buffer-based wireless relay network interference suppression method and system
  • A buffer-based wireless relay network interference suppression method and system
  • A buffer-based wireless relay network interference suppression method and system

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Embodiment Construction

[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] Such as figure 1 As shown, it is an embodiment of a buffer-based wireless relay network interference suppression method of the present invention, the method comprising:

[0036] Step S100, the relay node estimates the communication quality of the first hop and the second hop in the communication link, and obtains an initial channel quality estimation value;

[0037] Step S200, the relay node smoothes the initial channel quality estimate to obtain an average channel quality estimate;

[0038] Step S300, the relay node judges which hop link among the first hop link and the second hop link will be activated according to the average channel quality estimation value; ...

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Abstract

The invention relates to a wireless relay network interference suppression method and system based on buffer. The method comprises the steps that A, a relay node estimates communication quality of a first hop and a second hop in a communication link, thereby obtaining initial channel quality estimation values; B, the relay node smoothes the initial channel quality estimation values, thereby obtaining an average channel quality estimation value; C, carrying out judgment to decide which hop of link in a first hop of link and a second hop of link is about to be activated according to the averagechannel quality estimation value; D, if the first hop of link is decided to be activated, the relay node prepares to receive a wireless signal of a source node, demodulates and decodes a received signal, and sends decoded data to a queue in a buffer area for queuing processing; and E, if the second hop of link is decided to be activated, the relay node extracts a data packet with the highest priority from the queue of the buffer area, codes and modulates the data packet and sends the data packet to a target node for sending.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a buffer-based wireless relay network interference suppression method and system. Background technique [0002] As one of the key technologies of the next generation wireless mobile communication system, wireless relay network has been extensively researched and discussed. The wireless relay technology can enhance the coverage capability of the wireless network and improve the effective throughput of the system. However, due to the interference of other co-channel signals in the network, the relay node will cause a sharp drop in system capacity due to the reduction of the effective signal-to-noise ratio of the receiving link. How to suppress the co-channel interference received by the relay node through a simple and effective method has become Technical problems that need to be solved urgently. [0003] Existing relay node interference suppression methods...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/12H04W40/16H04W40/22
CPCH04W40/12H04W40/16H04W40/22
Inventor 邓单
Owner 上海伽易信息技术有限公司