Method for adaptively adjusting weighting coefficients in a cDMA

Details Method for adaptively adjusting weighting coefficients in a cDMA Method for adaptively adjusting weighting coefficients in a cDMA

1996-03-18

1998-09-15

Nguyen, Chau

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

375200, 370342, H04B 7216

Patent

active

058090207

ABSTRACT:
A method (300) for adaptively adjusting weighting coefficients (188, 190, 192) in a code division multiple access (CDMA) radio receiver (100). A representation (172) of a desired RF signal (166) is received (108, 124, 127). A plurality of pilot signals (178, 182, 186) are generated responsive to the representation (172) of a desired RF signal (166). Each of a plurality of weighting coefficients (188, 190, 192) is determined responsive to more than one of the plurality of pilot signals (178, 182, 186).

REFERENCES:
patent: 5140615 (1992-08-01), Jasper et al.
patent: 5237586 (1993-08-01), Bottomley
patent: 5442627 (1995-08-01), Viterbi et al.
patent: 5506861 (1996-04-01), Bottomley
patent: 5544167 (1996-08-01), Lucas et al.
patent: 5572552 (1996-11-01), Dent et al.
CDMA:Principles of Spread Spectrum Communication, by Andrew J. Viterbi, Addison-Wesley Publishing Company, pp. 86-93, 1995.
Signal Acquisition and Tracking With Adaptive Arrays in the Digital Motile Radio System IS-54 With Flat Fading, by Jack H. Winters, Senior Member, IEEE Transactions on Vehicular Technology, vol. 42, No. 4, Nov. 1993, pp. 377-384.

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