Apparatus, method and receiver for initial timing synchronization in communication system

Abstract

This invention discloses a device to initialize timing synchronization used in communication system, which comprises a storage unit to storage the received reception sequence samples and to send the storage reception sequence samples to a relativity checking unit, a weighted power computing unit to compute the weighted power of the receipted reception sequence samples and to send the weighted power to a parameter estimation unit, the relativity checking unit to perform the relativity checking of the reception sequence samples sent by the storage unit to generate the relativity coefficient, the parameter estimation unit to estimate the location estimation of the timing synchronization according to the weighted power and the relativity coefficient. This invention also discloses the method and receptor used to initialize timing synchronization in communication system. Very high precision of timing synchronization can be obtained and the errors of the timing synchronization estimation andthe frequency deviation estimation can be greatly reduced by the adoption of this invention.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, more specifically, to a device, method and receiver for initial timing synchronization in a communication system. Background technique [0002] At present, Global System for Mobile Communications (GSM) and Code Division Multiple Access Mobile Communication System (CDMA) have been widely used all over the world, while Wideband Code Division Multiple Access Mobile Communication System (WCDMA) and Wideband Code Division Multiple Mobile communication systems such as Multiple Access Mobile Communication System 2000 (CDMA2000) have also been applied to a certain extent within a certain range. [0003] At present, with the development of mobile communication systems, users have been provided with personal mobile communication terminals capable of supporting various new services. Because these services need to transmit a large amount of data, the mobile communication system requires...

AI Technical Summary

Problems solved by technology

[0008] In this initial timing synchronization method in the prior art, since the differential correlation processing of two identical parts is used, when there are multiple repeated training symbols, the differential correlation between the first half and the second half of the multi-segment is often used. Perform similar processing, so the correlation peak of timing synchronization is not obvious, and it is difficult to find the highest peak, resulting in poor timing synchronization accuracy and large error in frequency offset estimation

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