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Method for peak value searching in WCDMA system

A peak search and peak technology, which is applied in the field of peak search, can solve the problems of no WCDMA system disclosure, etc., and achieve the effect of reducing time resources and saving hardware resources

Active Publication Date: 2007-03-14
SANECHIPS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] But there is no disclosure about the method and technology of peak search in WCDMA system

Method used

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  • Method for peak value searching in WCDMA system
  • Method for peak value searching in WCDMA system
  • Method for peak value searching in WCDMA system

Examples

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Embodiment Construction

[0039] The preferred embodiments of the method of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0040] The method for peak search in the WCDMA system of the present invention, its core idea is: in the process of searching for the local peak search, adopt the method of search, backtracking, masking and continuous search, in the correlation power value corresponding to 10240 candidate phases in a time slot Search out all the local peaks; then search for 60 largest peaks from the local peaks, use the half-search algorithm, and use less hardware resources to complete the search and sorting of the 60 largest peaks.

[0041] In the WCDMA system of the method of the present invention, the time slot synchronously searching for 60 maximum peaks and sorting process of the cell search comprises the following steps:

[0042] 1) Find the largest peak value from 10240 power values ​​of a time slot;

[0043] 2) Shield the point...

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Abstract

This invention discloses one method to research peak values in WCDMA system, which comprises the following steps: adopting research, back, shielding and continuing process in researching process; finding out all local peak values in relative power values at one time gap prepare phase; researching maximum peak values from local peak values and adopting folded research foulard fulfill maximum peak value order. This invention method researches local peak values needing only two time lags.

Description

technical field [0001] The present invention relates to a peak search method in a WCDMA (Wide Code Multiple Access) system in the communication field, in particular to a peak search method in the time slot synchronous detection process of a broadband multiple access communication terminal cell search and sorting methods. Background technique [0002] The cell search process or synchronization process in the asynchronous WCDMA system is very different from the synchronous system. Since each cell in the asynchronous UTRA WCDMA system uses different torsion codes and not only different phase offsets, the current terminal Technically speaking, it is not possible to complete the search for 512 codewords within 10ms without any prior information; if you want to complete the search for 512 codewords, you will need to perform multiple cell search comparisons , so that the user needs to wait for a long time from power-on to accessing the network. [0003] Therefore, using the synch...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04B7/26H04B1/7075H04B1/7083
Inventor 王明虎
Owner SANECHIPS TECH CO LTD
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