Pulse or digital communications – Repeaters – Testing
Patent
1997-08-18
2000-02-15
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
375208, 375367, 370335, H04B 1500
Patent
active
060261153
ABSTRACT:
A RAKE receiver which is employed in a direct sequence spread spectrum communication system, and which can effectively receive multipath signals. A path searcher measures the amplitude of each path, selects N paths with larger amplitudes in descending order of magnitude, where N is the number of despreaders, and assigns the despreaders to the selected paths to despread the signals of the paths. This assignment of the despreaders to the paths is carried out such that a path with a large amplitude and a path with a small amplitude are assigned to adjacent despreaders and are input to the same pre-detection combiner. The outputs of the despreaders are combined by the pre-detection combiners, and detected by detectors whose outputs are RAKE combined by a post-detection combiner.
REFERENCES:
patent: 5490165 (1996-02-01), Blakeney, II et al.
patent: 5805648 (1998-09-01), Sutton
patent: 5881057 (1999-03-01), Komatsu
patent: 5889815 (1999-03-01), Iwakiri
Higashi Akihiro
Ohno Koji
Onoe Seizou
Chin Stephen
Liu Shuwang
NTT Mobile Communications Network Inc.
LandOfFree
Rake receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rake receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rake receiver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1911889