Timing offset estimation in an OFDM-based system by SINR measurement

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United States of America Patent

PATENT NO 9860861
APP PUB NO 20170311273A1
SERIAL NO

15133237

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Abstract

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A method for timing synchronization of an OFDM signal is useful for a sniffing base station (BS) to establish BS synchronization with another BS in a mobile communication system. The method comprises estimating a timing offset of the signal from a reference sampling instant. In estimating the timing offset, first determine a maximum detection range of an estimable timing offset estimated solely by an observed phase difference between two pre-selected pilot symbols in the signal. Then the timing offset is determined as an integer multiple of the maximum detection range plus a residual timing offset. The multiplying integer is determined from a set of candidate integers. According to a candidate integer under consideration, a portion of an OFDM-signal sample sequence is masked out and a resultant signal to interference plus noise ratio (SINR) is computed. The multiplying integer is determined by identifying the candidate integer having the greatest SINR.

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Patent Owner(s)

Patent OwnerAddress
HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED5/F PHOTONICS CENTRE 2 SCIENCE PARK EAST AVENUE HONG KONG SCIENCE PARK SHATIN N T HONG KONG KONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kwan, Man Wai Victor Hong Kong, HK 5 8
Tsang, Eric Kong Chau Hong Kong, HK 10 16
Wu, Yueping Hong Kong, HK 1 3
Yang, Yin Shenzhen, CN 27 1266
Zhang, Yuxian Hong Kong, HK 19 38

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