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Cell searching method and system

A cell search and mobile system technology, applied in the transmission system, code division multiplexing system, communication between multiple stations, etc., can solve the problems of long search time and low search efficiency, and improve cell search efficiency Effect

Active Publication Date: 2008-03-05
SANECHIPS TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0011] The main purpose of the present invention is to provide a cell search method and system 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

Method used

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  • Cell searching method and system
  • Cell searching method and system

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Embodiment Construction

[0042] Embodiments of the present invention will be described below with reference to the drawings.

[0043] like figure 1 As shown, the cell search method in the mobile system according to the present invention includes step S102, applying for time slot synchronization resources, configuring related parameters, when the time slot synchronization running time is up, generating time slot synchronization results, and sorting the peak values ​​of time slot synchronization , take out multiple peaks and peak position offsets, and release time slot synchronization resources at the same time.

[0044]In addition, step S104 is also included, applying for one of the two frame synchronization and scrambling code group identification resources according to predetermined rules, setting relevant parameters according to the result of step S102, and searching for multiple peaks and peak position offsets of time slot synchronization respectively , the result of the search is the frame synchr...

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Abstract

This invention provides a search method and a system for local areas in a mobile system, in which, the method includes: applying for a time slot synchronization resource to match with related parameters, generating a result after the synchronous operation and sequencing the peak values of the synchronization, taking out multiple peak values and their position offsets and releasing the time slot synchronization resource, applying for a synchronization resource of two frames or an identification resource of a scrambling code set, setting related parameters, searching the multiple peak values and their offsets of the time slot synchronization, in which, the search result is the frame synchronization point and scrambling code set and then releasing related resource after the search, and applying for an identifying resource of scrambling codes setting parameters in the last step to search for the scrambling code and releasing the resource after the search so as to realize operations of time slot synchronization, frame synchronization, identification of scrambling code sets and identification of scrambling codes simultaneously.

Description

technical field [0001] The present invention relates to a cell search method and system in the wireless communication field, 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, WCDM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04B1/707H04J13/00H04B1/7083H04W72/12H04W76/06
Inventor 张道垠
Owner SANECHIPS TECH CO LTD
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