Preamble symbol generation and receiving method, and frequency-domain symbol generation method and device

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United States of America Patent

PATENT NO 11128504
APP PUB NO 20200374168A1
SERIAL NO

16992040

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Abstract

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Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and relevant device. The generated preamble symbol contains: a time-domain symbol with a first three-segment structure; or a time-domain symbol with a second three-segment structure; or a free combination of several time-domain symbols with the first three-segment structure and/or several time-domain symbols with the second three-segment structure arranged in any order. Using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to perform coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels, and generating a postfix or hyper prefix based on the truncation of the entirety or a portion of the time-domain main body signal would enable the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

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Patent Owner(s)

Patent OwnerAddress
SHANGHAI NATIONAL ENGINEERING RES CENTER OF DIGITAL TELEVISION CO LTDNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guan, Yunfeng Shanghai, CN 24 53
Guo, Xufeng Shanghai, CN 12 43
He, Dazhi Shanghai, CN 21 49
Huang, Ge Shanghai, CN 21 72
Xing, Guanbin Shanghai, CN 45 1581
Xu, Hongliang Shanghai, CN 40 131
Zhang, Wenjun Shanghai, CN 111 675

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