Title:
SYSTEMS AND METHODS FOR FREQUENCY SYNCHRONIZATION BETWEEN TRANSMITTERS AND RECEIVERS IN A COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/152437
Kind Code:
A1
Abstract:
Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
Inventors:
ZHAO SHAOHUA (CN)
NI WUXUE (CN)
LUO BIQIANG (CN)
LI LI (CN)
NI WUXUE (CN)
LUO BIQIANG (CN)
LI LI (CN)
Application Number:
PCT/CN2016/077403
Publication Date:
September 14, 2017
Filing Date:
March 25, 2016
Export Citation:
Assignee:
HONG KONG APPLIED SCIENCE & TECH RES INST COMPANY LTD (CN)
International Classes:
H04L7/027
Domestic Patent References:
| WO2014128019A1 | 2014-08-28 |
Foreign References:
| CN101455008A | 2009-06-10 | |||
| CN101277288A | 2008-10-01 | |||
| CN103873415A | 2014-06-18 | |||
| CN101277290A | 2008-10-01 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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