The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2013
Filed:
Nov. 05, 2008
Hiroyuki Atarashi, Yokohama, JP;
Mamoru Sawahashi, Yokohama, JP;
Francois Po Shin Chin, Singapore, SG;
Zhongding Lei, Singapore, SG;
Xiaoming Peng, Singapore, SG;
Ying-chang Liang, Singapore, SG;
Hiroyuki Atarashi, Yokohama, JP;
Mamoru Sawahashi, Yokohama, JP;
Francois Po Shin Chin, Singapore, SG;
Zhongding Lei, Singapore, SG;
Xiaoming Peng, Singapore, SG;
Ying-Chang Liang, Singapore, SG;
NTT DoCoMo, Inc., Tokyo, JP;
Agency for Science, Technology and Research, Centros, SG;
Abstract
A transmitter comprises a first spreading unit configured to multiply each of multiple data symbols with a first spreading code sequence of a first spreading factor; a compression and repetition unit configured to compress output signals of the first spreading unit in time domain and repeat the compressed signal L times (where L is a natural number greater than or equal to 2); a phase modulation unit configured to multiply the compressed and repeated signal with a user dependent phase and output a data block consisting of L sub-blocks; a second spreading unit configured to replicate the data block according to a second spreading factor and multiply each set of the replicated sub-blocks with a second spreading code sequence of the second spreading factor to produce a two-dimensionally spread signal; and a wireless transmission unit configured to transmit the two-dimensionally spread signal using a single-carrier transmission scheme.