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A neighbor cell detection method and device based on LTE system

A technology of adjacent cell detection and detection unit, which is applied in the direction of orthogonal multiplexing system, electrical components, multiplex communication, etc., and can solve the problems of false detection and missing detection of adjacent cells

Active Publication Date: 2019-04-09
WUHAN HONGXIN TELECOMM TECH CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a neighbor cell detection method and device based on the LTE system to solve the problems of false detection and missed detection in the prior art neighbor cell detection, especially for the missed detection of the same cell of modulo 3 and modulo 6, This technical solution is applicable to both TDD-LTE and FDD-LTE systems

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  • A neighbor cell detection method and device based on LTE system
  • A neighbor cell detection method and device based on LTE system
  • A neighbor cell detection method and device based on LTE system

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Embodiment Construction

[0059] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present application will be fully described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the appended The drawings are only the embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

[0060] see figure 1 , which shows the flow of an embodiment of the cell detection method based on the LTE system of the present application. Specifically, the process includes:

[0061] Step 1: Acquire data and perform preprocessing: Obtain 2 frames of time-domain data, and perform down-sampling and filtering processing on the data.

[0062] To implement the cell detection process of the present invention, it is necessary to obtain a complete frame of time domain ...

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Abstract

The present invention provides an LTD system-based adjacent region detection method and a device. The method comprises the steps of data acquisition and preprocessing. Specifically, the method comprises the steps of obtaining two frames of time-domain data, and subjecting data to down-sampling and filtering treatment; completing the PSS detection process: namely subjecting half frame of down-sampling data to segment correlation in the frequency domain with three sets of locally generated primary synchronization signals, transforming an obtained result to the time domain, taking a correlation peak, determining the starting point position of the above half frame and a corresponding cell group ID; obtaining SSS data, completing the SSS detection and the false detection elimination to obtain the a cell set A and a frame starting position; according to the frame starting position, obtaining cell reference signal CRS data, completing the CRS detection and verification, and obtaining a cell set B; merging the cell set A and the cell set B to obtain a final cell set. According to the technical scheme of the invention, the cell detection accuracy is improved, and the false detection and the leak detection are reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a neighbor cell detection method and device based on an LTE system. Background technique [0002] LTE (Long Term Evolution system, Long Term Evolution) system is a wireless communication system widely used at present, it includes TDD-LTE (Time Division Duplexing-Long Term Evolution system) and FDD-LTE (Frequency Division Duplexing-Long Term Evolution system) mode. [0003] In the process of performing adjacent cell detection in the prior art, it generally consists of two steps: Primary Synchronization Signal (PSS) detection and Secondary Synchronization Signal (SSS) detection. Obtain the cell group ID and wireless frame head position of the adjacent cell, so as to determine the system adjacent cell information and frame start position. It is easy to complete the detection of neighboring cells with strong signal by using the existing neighboring cell detec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J11/00
CPCH04J11/0073H04J11/0076H04J11/0086H04J11/0093
Inventor 官银莹杨繁
Owner WUHAN HONGXIN TELECOMM TECH CO LTD