Cell search method in WCDMA mobile communication system

Abstract

The invention provides a cell searching method in the wideband code division multiple access mobile communication system. The method comprises the following steps: the time slot synchronization resources are applied, the correlative parameter is configured, when the time slot running time is due, the time slot synchronization result is generated, the peak values of the time slot synchronization are sequenced, a plurality of peak values and peak value position deviation are taken out, and simultaneously the time slot synchronization resources are released; one of the two frame synchronization and the scrambling group identification resources is applied according to the preset rules, the correlative parameter is set according to the result of the previous step, and the peak values and peak value position deviation of the time slot are respectively searched, and the searched result is the frame synchronization time point and the scrambling group, and the correlative resources is released after the search is accomplished. Therefore, the invention can realize the parallel running of the time slot synchronization, the frame synchronization, the scrambling group identification and the scrambling identification, and therefore the research efficiency is enhanced.

Description

technical field [0001] The present invention relates to a cell search method in the field of wireless communication, more specifically, to a cell search method and system in a WCDMA (Wideband Code Division Multiple Access) mobile communication system. Background technique [0002] Since the 1980s, people have applied Code Division Multiple Access (CDMA) technology to the field of mobile communication. Due to its high frequency utilization rate and strong anti-interference ability, it has quickly become a mobile communication system with vitality and application prospects. Currently the world's attention is focused on the third generation mobile communication systems, such as the International Mobile Telecommunications System 2000 (IMT-2000) of the International Telecommunications Union (ITU) or the European Mobile Telecommunications System (UMTS). In the third-generation mobile communication system, it has become a consensus to adopt CDMA technology. Among them, WCDMA, as on...

AI Technical Summary

Problems solved by technology

[0011] The main purpose of the present invention is to provide a cell search method in a mobile system, which is used to overcome the problems of long search time and low search efficiency caused by the defects of the prior art

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