Spread spectrum multipath combination

Details Spread spectrum multipath combination Spread spectrum multipath combination

2000-09-08

2008-11-25

Wang, Ted (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S146000, C375S147000, C375S267000, C375S295000, C455S065000, C455S506000

Reexamination Certificate

active

07457381

ABSTRACT:
Multipath relative channel estimations for weighting maximal ratio combining of RAKE detectors in wireless communication systems uses maximal eigenvectors of covariance matrices of path signals. Estimates for close-in and outlying sets of symbols provides linear time change channel estimation.

REFERENCES:
patent: 5819168 (1998-10-01), Golden et al.
patent: 5937333 (1999-08-01), Sexton et al.
patent: 5999131 (1999-12-01), Sullivan
patent: 6044120 (2000-03-01), Bar-David et al.
patent: 6067324 (2000-05-01), Harrison
patent: 6167039 (2000-12-01), Karlsson et al.
Brunner et al., Adaptive Space-Frequnecy Rake Receivers for WCDMA, 1999 IEEE International Conference, vol. 4, pp. 2383-2386, Mar. 1999.

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