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Interference elimination method and device under asynchronous interference data

A technology of interference elimination and interference data, which is applied in the field of communication, can solve the problem that time slot data cannot accurately eliminate interference, and achieve the effect of eliminating interference

Active Publication Date: 2013-04-10
LEADCORE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the problem in the prior art that the time slot data subject to asynchronous interference cannot be accurately eliminated, the embodiment of the present invention provides an interference elimination method and device under asynchronous interference data

Method used

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  • Interference elimination method and device under asynchronous interference data
  • Interference elimination method and device under asynchronous interference data
  • Interference elimination method and device under asynchronous interference data

Examples

Experimental program
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Embodiment 1

[0024] Embodiment 1: The method for eliminating interference under asynchronous interference data provided by this embodiment includes:

[0025] 101. Determine the interference critical point j of the first time slot data, and divide the first time slot data into a first part of time slot data and a second part of time slot data;

[0026] In the embodiment of the present invention, the first time slot data refers to one time slot data, that is, one of the time slot data received by the network element equipment in the GSM system.

[0027] 103. Perform interference cancellation processing on the first part of time slot data and the second part of time slot data respectively;

[0028] 105. Combine the first part of time slot data and the second part of time slot data after the interference elimination processing to obtain the first time slot data after interference elimination.

[0029] Wherein, the interference critical point j of the first time slot data is determined in the ...

Embodiment 2

[0042] Embodiment 2: This embodiment supplements the details of how to determine the critical interference point of time slot data in the first embodiment.

[0043] Specifically, when the network element equipment in the GSM architecture receives time slot data, if it is necessary to divide the data of a certain time slot into the part that is interfered with and the part that is not interfered with according to the interference situation, it is necessary to first determine the time slot Data interference critical point, where:

[0044] Assume that the received data is Data, and the data length of a single time slot is 156, namely:

[0045] Data=[Data(1)Data(2)...Data(156)].

[0046] Assuming that at the jth position, the time slot data begins to be subject to GSM asynchronous strong interference, the method for GSM to determine the interference boundary point under asynchronous strong interference is as follows:

[0047] mistake! Reference source not found. For initializa...

Embodiment 3

[0064] Embodiment 3: This embodiment supplements details on how to perform interference elimination processing on the first part of time slot data and the second part of time slot data in the first embodiment.

[0065] Specifically, assuming that the received data is Data, and the data length of a single time slot is 156, then:

[0066] Data=[Data(1)Data(2)...Data(156)];

[0067] Assuming that the jth position begins to be subject to GSM asynchronous strong interference, the steps of the DC component elimination method under the existence of GSM asynchronous strong interference are as follows:

[0068] mistake! Reference source not found. Carry out data block, divide into two parts, start to block from the jth point. These two parts of data are

[0069] Data1 = [Data(1)Data(2)...Data(j)];

[0070] Data2=[Data(j)Data(j+1)...Data(156)];

[0071] mistake! Reference source not found. Calculate the DC components of Data1 and Data2 using Formula 1 to obtain the DC component ...

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Abstract

The invention provides an interference elimination method and a device under asynchronous interference data, wherein the interference elimination method under the asynchronous interference data comprises the following steps: (1) confirming an interference tipping point j of first time slot data and dividing the first time slot data into first part time slot data and second part time slot data, (2) respectively carrying out interference elimination to the first part time slot data and the second part time slot data, (3) combining the first part time slot data and the second part time slot data which are processed in an interference eliminated mode and obtaining the first time slot data after interference is eliminated. According to the interference elimination method and the device under the asynchronous interference data, the time slot data are divided into two parts, namely an interference part and a non-interference part, and interference elimination to the interference part and the non-interference part is respectively carried out, and thus the interference of the time slot data can be eliminated more effectively.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an interference elimination method and device under asynchronous interference data. Background technique [0002] At present, after receiving the time slot data, network element devices in the Global System of Mobile communication (GSM) perform DC component calculation on the time slot data, thereby eliminating interference in the time slot data. [0003] In the prior art, there are many methods for DC component calculation, such as direct calculation method and least square method, etc. The following will briefly describe the direct calculation method for DC component calculation as an example. The network element equipment in the GSM system will receive Calculate the DC component of the data or Midamble code data of a time slot, and then perform DC elimination on the entire time slot data according to the calculated DC component value, specifically: [0004] (1) Assume ...

Claims

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Application Information

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IPC IPC(8): H04W16/14
Inventor 高宝贵杨光
Owner LEADCORE TECH
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