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Detection method and device for same frequency interference cells

A co-channel interference and detection method technology, which is applied in the field of communication, can solve the problems of poor popularity of co-channel interference source positioning means, high analysis threshold, and many manual interventions.

Active Publication Date: 2014-04-02
DATANG MOBILE COMM EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

[0012] 2. The immediacy is not high
[0013] After obtaining the antenna data of the problematic base station, the management personnel need to analyze the antenna data during the interference period offline and perform data-related operations. The offline workload is huge, and the immediacy of locating the interference source is not high.
[0014] 3. High professional threshold
[0015] There are many manual interventions, the analysis threshold is high, and not everyone has professional knowledge, which leads to poor popularity and low efficiency of co-channel interference source location

Method used

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  • Detection method and device for same frequency interference cells

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Embodiment Construction

[0074] In order to realize the real-time performance of the co-channel interference detection of the base station and improve the co-channel interference detection efficiency, in the embodiment of the present invention, when the base station processes the baseband data, according to the set detection period, according to the codeword table of the adjacent cell configured, respectively Perform channel estimation on the local cell and each neighboring cell, and obtain the channel estimation value of the local cell and the channel estimation value of each neighboring cell corresponding to each codeword, and then compare the two; If the channel estimation value is higher than the channel estimation value of this cell and the number of times is greater than the set threshold, then the adjacent cell is determined to be an interfering cell, and reported to the management station for alarm processing, so that the operation and maintenance personnel can find the corresponding site accord...

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Abstract

The invention relates to the field of communication, and discloses a detection method and a detection device for same frequency interference cells. The detection method and the detection device for the same frequency interference cells provided by the invention are used for realizing the timeliness of the detection of the same frequency interference of a base station and improving the detection efficiency of the same frequency interference. The method comprises the steps that the base station adopts a way of a neighboring cell measurement item more than a threshold to recognize a strongest interference neighboring cell which causes the same frequency interference, therefore an interference source is internally and automatically triggered to detect and position by the base station, and interference source codons are reported to a management station, so that the analytical efficiency of the interference source can be improved; the timeliness of the detection of the same frequency interference of the base station can be realized, so that a manager can discover the interference source in time and modify the codons or frequency points used by the interference source in time, so as to effectively guarantee the system performance; and on the other hand, the manual analysis cost can be effectively reduced.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for detecting co-frequency interference cells. Background technique [0002] In a Time Division Synchronized Code Division Multiple Access (CDMA) system, due to limited frequency resources, the same frequency resources will be multiplexed in different areas, especially when the traffic and user volume are relatively large In the central area of ​​the city, the sites are dense and the frequency reuse coefficient is large. [0003] When the wireless network optimization is not reasonable, the co-channel interference in the system will be very serious, which often leads to user dropped calls, one-way communication, untimely switching, switching failure, etc., which seriously affects user perception. If you need to deeply optimize the wireless network environment parameters with high co-channel interference, you need to know the source of the interference. The characte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00
Inventor 姜媛儿王文静
Owner DATANG MOBILE COMM EQUIP CO LTD
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