A method and device for detecting LTE same-frequency adjacent cells
A technology of co-frequency adjacent cells and detection methods, applied in the direction of synchronization devices, access restrictions, electrical components, etc., can solve the problems of false alarms and missed detections in the detection of co-frequency adjacent cells, so as to improve detection performance and reduce false alarms and missed detections The effect of probability
Active Publication Date: 2017-10-24
WUHAN POST & TELECOMM RES INST CO LTD
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[0003] The purpose of the present invention is to provide a method and device for detecting LTE co-frequency adjacent cells, so as to solve the problems of false alarms and missing detections in the detection of co-frequency adjacent cells in the prior art
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[0048] In the following multiple embodiments of the present invention, one embodiment provides a method for detecting an LTE same-frequency neighboring cell, and one embodiment provides a device for detecting an LTE same-frequency neighboring cell. The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.
[0049] In order for those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are described below in conjunction with the accompanying drawings. The program is described in more detail.
[0050] see figure 1 , is the flow chart of an embodiment of a method for detecting LTE co-frequency adjacent cells of the present application, and the ...
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The invention provides an LTE (Long Term Evolution) common-frequency adjacent region detection method and device. The method comprises the following steps: firstly, doing related detection on a received time-domain signal and a local main synchronizing signal to obtain a 5ms timing position; aiming at the 5ms timing position, obtaining a corresponding frequency domain auxiliary synchronizing signal; searching the auxiliary synchronizing signal; carrying out relation on a locally-generated auxiliary synchronizing signal by utilizing the obtained auxiliary synchronizing signal; judging a region with the greatest power according to a related first peak value and reconstructing the auxiliary synchronizing signal of the region and eliminating interferences; sequentially detecting until iteration is finished; and carrying out PBCH (Physical Broadcast Channel) decoding checking on a detected district and feeding a district ID (Identity) checked by a PBCH back to the auxiliary synchronizing signal and searching. With the adoption of the technical scheme of common-frequency region detection, the searching performance can be improved, and the false reporting and the leaked detection can be prevented.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and device for detecting IDs of same-frequency adjacent cells in an LTE system. Background technique [0002] In a Long Term Evolution (LTE for short) system, after the terminal is turned on, it first starts to initially search for a serving cell for camping on. After the mobile terminal successfully camps in a certain serving cell, it will search for neighboring cells. LTE mostly adopts the same-frequency network. In the search of adjacent cells of the same frequency, there will be a certain power difference between the cells, which will cause the cells with strong power to interfere with the cells with weaker power, and affect the search accuracy of weak cells. . Using the existing method of searching in adjacent cells of the same frequency, only cells with strong power and some cells with weak power can be searched, and there are modulo 6 and modulo 3...
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IPC IPC(8): H04W24/08H04W48/16H04W56/00
Inventor 徐宁罗昆初
Owner WUHAN POST & TELECOMM RES INST CO LTD