Wireless communication system and communication method therefor

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United States of America Patent

PATENT NO 9007887
APP PUB NO 20140022884A1
SERIAL NO

14007529

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Abstract

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Disclosed is a communication method comprising: determining the length, N, of a random access sequence on the basis of system configuration information, where N is less than or equal to the number of available subcarriers; determining a cyclic shift parameter collection and a cyclic prefix on the basis of a system coverage area as designed; acquiring and on the basis of a MAC address of a central access point (CAP), or of a physical layer identifier thereof, and of a predetermined generator polynomial, generating a PN sequence of length N, then constellation-mapping and subcarrier-mapping the PN sequence; cyclically shifting, on the basis of the cyclic shift parameter, the constellation-mapped and subcarrier-mapped sequence, then orthogonally transforming the cyclically shifted sequence; acquiring the sequence needed, adding the cyclic prefix thereto, acquiring a random access signal; and performing subsequent processing then transmitting to a receiving-end. Also provided in the present invention is a corresponding communication system. The present invention provides improved support for wireless communication system random access, and improved system stability and reliability.

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Patent Owner(s)

Patent OwnerAddress
BEIJING NUFRONT MOBILE MULTIMEDIA TECHNOLOGY CO LTDHAIDIAN DISTRICT BEIJING 100084

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bao, Dongshan Beijing, CN 29 345
Lei, Jun Beijing, CN 47 221
Liu, Shenfa Beijing, CN 24 297
Pan, Lijun Beijing, CN 18 419
Wang, Jing Beijing, CN 1745 13464
Yan, Zhigang Beijing, CN 14 297

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