Overhead signaling in a wireless communication system

Details Overhead signaling in a wireless communication system Overhead signaling in a wireless communication system

2011-08-23

2011-08-23

Payne, David C. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S134000

Reexamination Certificate

active

08005158

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.

REFERENCES:
patent: 5852630 (1998-12-01), Langberg et al.
patent: 2005/0157803 (2005-07-01), Kim et al.
patent: 2007/0064771 (2007-03-01), Schilling
patent: 2007/0159969 (2007-07-01), Das et al.
patent: 2007/0242765 (2007-10-01), Parizhisky et al.
patent: 2007/0245007 (2007-10-01), Tsirtsis et al.
patent: 2007/0249288 (2007-10-01), Moallemi et al.
patent: 1065818 (2001-01-01), None
patent: 1569403 (2005-08-01), None
Tsumura S et al: “Performance Comparison of OFDM-FH and MC-CDM in Single- and Multi-Cell Environments” May 30, 2005, 2005 IEEE 61st Vehicular Technology Conference, 2005. VTC 2005 Spring. Stockholm, Sweden Apr. 30-May 1, 2005, Piscataway, NJ, USA, IEEE, pp. 1730-1734, XP010855720 ISBN: 0-7803-8887-9.
International Search Report—PCT/US07/066583, International Search Authority—European Patent Office—Jan. 2, 2008.
Written Opinion—PCT/US07/066583, International Search Authority—European Patent Office—Jan. 2, 2008.

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