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Cell synchronization position filtering method, device and equipment

A technology of synchronous location and cell synchronization, applied in the field of communication, can solve the problems of reducing the accuracy of interference cancellation and the probability of successful detection of target cells

Active Publication Date: 2013-12-04
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] When performing a cell search, the terminal device may detect the same cell in multiple PSS synchronization positions. At this time, it is necessary to select the correct PSS synchronization position corresponding to the cell. accuracy and the detection success probability of the target cell

Method used

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  • Cell synchronization position filtering method, device and equipment
  • Cell synchronization position filtering method, device and equipment
  • Cell synchronization position filtering method, device and equipment

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Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] figure 1 It is a flow chart of a cell synchronization position filtering method provided by an embodiment of the present invention. The executive body of this embodiment of the invention is a terminal device, see figure 1 , the method includes:

[0065] 101: When the same cell identifier Cell ID is detected at multiple primary synchronization signal PSS synchronization positions, according to each PSS synchronization position, extract at ...

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Abstract

The invention discloses a cell synchronization position, device and equipment, and belongs to the technical field of communication. The method includes the steps: respectively extracting at least one SSS (secondary synchronization signal) time domain receiving signal from at least one antenna according to each PSS (primary synchronization signal) synchronization position when detecting the same Cell ID (identity) at a plurality of PSS synchronization positions; respectively calculating normalized correlation of each pre-stored time domain SSS and the SSS time domain receiving signal at each PSS synchronization position to obtain an SSS normalized correlation value based on each PSS synchronization position; determining the PSS synchronization position corresponding to the maximum SSS normalized correlation value as the PSS synchronization position of the Cell ID. By determining the PSS synchronization position of the Cell ID, the detected PSS synchronization positions are filtered, the position detection success probability of the Cell ID is increased, interference elimination accuracy can be improved when interference is eliminated for the Cell ID, and the detection success probability of a target cell is further increased.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a cell synchronization location filtering method, device and equipment. Background technique [0002] When the terminal equipment communicates with the base station, in order to realize time and frequency synchronization between the terminal equipment and the base station, and to identify the serial number ID of the cell, the terminal equipment needs to perform a cell search. For an LTE (Long Term Evolution, long-term evolution) system, a PSS (Primary Synchronization Signal, primary synchronization signal) and an SSS (Secondary Synchronization Signal, secondary synchronization signal) may be used when performing cell search. Specifically, the steps for the terminal device to perform cell search are as follows: [0003] (1) Eliminate the time-domain interference of the synchronization signal from the time-domain received signal; [0004] (2) Use the received signa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
Inventor 魏璟鑫
Owner HONOR DEVICE CO LTD
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