Method for determining signal quality of simultaneously...

Details Method for determining signal quality of simultaneously... Method for determining signal quality of simultaneously...

2006-08-08

2006-08-08

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S146000, C375S147000, C375S227000

Reexamination Certificate

active

07088764

ABSTRACT:
A spread spectrum communication station simultaneously receives multiple data channels on the same frequency spectrum and at data rates which may individually vary. A determination is made of signal quality based on signal to noise ratio (SNR) the channels by comparing a forward error corrected sample with a corresponding delayed sample. The comparison of the delayed despread data with the decoded data provides the indication of SNR.

REFERENCES:
patent: 4709377 (1987-11-01), Martinez et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5173926 (1992-12-01), Iwasaki
patent: 5280537 (1994-01-01), Sugiyama et al.
patent: 5396516 (1995-03-01), Padovani et al.
patent: 5454009 (1995-09-01), Fruit et al.
patent: 5465269 (1995-11-01), Schaffner et al.
patent: 5469452 (1995-11-01), Zehavi
patent: 5504773 (1996-04-01), Padovani et al.
patent: 5528593 (1996-06-01), English et al.
patent: 5535239 (1996-07-01), Padovani et al.
patent: 5541955 (1996-07-01), Jacobsmeyer
patent: 5559757 (1996-09-01), Catipovic et al.
patent: 5566206 (1996-10-01), Butler et al.
patent: 5581575 (1996-12-01), Zehavi et al.
patent: 5596607 (1997-01-01), Larsson et al.
patent: 5619524 (1997-04-01), Ling et al.
patent: 5636251 (1997-06-01), Citta et al.
patent: 5689511 (1997-11-01), Shimazaki et al.
patent: 5710784 (1998-01-01), Kindred et al.
patent: 5907586 (1999-05-01), Katsuragawa et al.
patent: 6005898 (1999-12-01), Kaewell, Jr.
patent: 6035209 (2000-03-01), Tiedemann, Jr. et al.
patent: 6148042 (2000-11-01), Zehavi et al.
patent: 6205190 (2001-03-01), Antonio et al.
patent: 6256339 (2001-07-01), Kaewell, Jr.
patent: 6393074 (2002-05-01), Mandyam et al.
patent: 6404826 (2002-06-01), Schmidl et al.
patent: 6404828 (2002-06-01), Kaewell, Jr.
patent: 6463097 (2002-10-01), Held et al.
patent: 6480521 (2002-11-01), Odenwalder et al.
patent: 6577673 (2003-06-01), Kaewell, Jr.
patent: 6898321 (2005-05-01), Knee et al.
patent: 2003/0086515 (2003-05-01), Trans et al.
patent: 0712219 (1996-05-01), None
patent: 2293732 (1996-03-01), None
patent: 8195683 (1996-07-01), None
patent: 95/03652 (1995-02-01), None
patent: 95/08888 (1995-03-01), None
Hinderling, “CDMA Mobile Station Modem ASIC”, IEEE Journal of Solid-State Circuits, vol. 28, No. 3, Mar. 1993, pp. 253-260.
Czaja et al., “Variable Data Rate Viterbi Decoder With Modified LOVA Algorithm,” IEEE Tencon, 1995, pp. 472-475.
Cohen et al., “Multi-Rate Detection for the IS-95A CDMA Forward Traffic Channels Using the 13 kbps Speech Coder”, IEEE International Conference, vol. 3, 1996, pp. 1844-1848.

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