Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1996-03-29
1998-04-07
Kizou, Hassan
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370318, 370342, 375325, H04J 1304, H04Q 720
Patent
active
057373272
ABSTRACT:
A receiver circuit (400, 500) receives a spread spectrum communication signal, such as a DS-CDMA signal, including a pilot channel and including a power control designator. The signal is despread and decoded. The pilot symbols on the pilot channel are provided to a channel estimator (408) for estimating the channel phase and channel gain of the communication channel. This estimate is provided to a demodulator (422) for demodulating the traffic channel symbols. The pilot symbols are provided to another channel estimator (410) for estimating channel phase and channel gain for the power control designator. This estimate is provided to a demodulator (424) for demodulating the power control designator. The traffic channel symbols are delayed a predetermined time in a delay element (420) before demodulating. The power control designator is delayed a short time or not at all in a short delay element (418) before demodulation.
REFERENCES:
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5329547 (1994-07-01), Ling
patent: 5361275 (1994-11-01), Subramanian
patent: 5442661 (1995-08-01), Falconer
patent: 5544156 (1996-08-01), Teder et al.
Viterbi, Andrew J., CDMA: Principles of Spread Spectrum Communication, Addison-Wesley Publishing Company, 1995, pp. 86-93.
Borth David E.
Frank Colin D.
Kepler James F.
Ling Fuyun
Rasky Phillip D.
Kizou Hassan
Motorola Inc.
Rauch John G.
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