Searching for signals to assign to the fingers of a rake receive

Details Searching for signals to assign to the fingers of a rake receive Searching for signals to assign to the fingers of a rake receive

1997-12-09

2000-06-06

Olms, Douglas W.

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

370335, 370350, 370252, 370332, 375200, 375206, 375347, 375349, H04J 1500, H04J 322

Patent

active

060728078

ABSTRACT:
A technique for searching for signals to assign to the fingers of a rake receiver is disclosed. In particular, some embodiments of the present invention identify signals with some PN sequence offsets as more likely to have signals appear at them than other offsets, and monitor the more promising offsets more closely than the less promising offsets, thus enabling signals to be more quickly discovered and assigned to a finger. One embodiment of the present invention comprises: assigning a signal to a finger of a rake receiver; de-assigning the signal from the finger; searching for the signal with the finger after the signal has been de-assigned from the finger; and re-assigning the signal to the finger, if a measure of signal quality of the signal crosses a threshold.

REFERENCES:
patent: 5237586 (1993-08-01), Bottomley
patent: 5854785 (1998-12-01), Willey
patent: 5889768 (1999-03-01), Storm et al.
patent: 5926503 (1999-07-01), Kelton et al.
patent: 5953366 (1999-09-01), Naruse et al.
patent: 5956367 (1999-09-01), Koo et al.

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