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Title:
LARGE FREQUENCY DEVIATION-PREVENTION FRAME SYNCHRONIZATION METHOD, APPARATUS AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/008070
Kind Code:
A1
Abstract:
The present application relates to a large frequency deviation-prevention frame synchronization method, apparatus and system. The large frequency deviation-prevention frame synchronization method comprises the following steps: determining frame synchronization parameters according to the maximum frequency deviation value of a system, the frame synchronization parameters comprising a frame synchronization sequence and the number of segments; performing segmentation on the frame synchronization sequence according to the number of segments to obtain various segmented frame sequences; performing segment cross-correlation processing on the various segmented frame sequences and a received signal to obtain correlation peak values of the various segmented frame sequences; and adding the various correlation peak values to obtain a sum, and comparing the sum with a threshold to obtain a frame synchronization result. The present application uses segment cross-correlation and adopts a means of aggregating the results of segment cross-correlation to implement frame synchronization, which may ensure a frequency deviation value that may be resisted (that is, the upper limit of frequency deviation that may be resisted by frame synchronization may be significantly increased) while a longer frame synchronization sequence is selected for use, thus improving the robustness and performance of the system, and providing a considerable frame synchronization success rate.

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Inventors:
ZHAI XIONGFEI (CN)
HUANG JINHUA (CN)
LI JUN (CN)
WANG FU (CN)
YAN ZHONGJIA (CN)
YANG BO (CN)
Application Number:
PCT/CN2019/124666
Publication Date:
January 21, 2021
Filing Date:
December 11, 2019
Export Citation:
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Assignee:
COMBA TELECOM SYSTEMS CHINA LTD (CN)
International Classes:
H04B7/26
Domestic Patent References:
WO2010048744A12010-05-06
Foreign References:
CN110311747A2019-10-08
CN101577580A2009-11-11
CN103023853A2013-04-03
Attorney, Agent or Firm:
LIFANG & PARTNERS (CN)
Download PDF:
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