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:
Aug. 23, 2011
Filed:
Jul. 14, 2006
Alexander Leonidov, Somerset, NJ (US);
Hui Jin, Clinton, NJ (US);
Rajiv Laroia, Far Hills, NJ (US);
Junyi LI, Bedminster, NJ (US);
Murari Srinivasan, Palo Alto, CA (US);
Alexander Leonidov, Somerset, NJ (US);
Hui Jin, Clinton, NJ (US);
Rajiv Laroia, Far Hills, NJ (US);
Junyi Li, Bedminster, NJ (US);
Murari Srinivasan, Palo Alto, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Improved ways of communicating assignment signals using flash signaling are described, e.g., for wireless terminals with low SNR, that are more robust against large variation of channel gains due to e.g., frequency selective fading and fast fading in time. Coding and modulation methods and apparatus that have excellent properties against symbol erasures are described. The use of flash signaling provides an improved assignment channel having strong performance on the fading channel without compromising the performance on the AWGN channel. In one exemplary embodiment, the coding and modulation method can tolerate up to 5 erased symbols out of 8 transmitted symbols. One embodiment reduces or minimizes the sector interference on the flash assignment by improving or maximizing orthogonality between different sectors. In addition, one embodiment describes improved ways of swapping flash assignment tone-symbols in the presence other high priority signals, like sector pilots and sector null pilots.