Interpolating GRAKE with two step delay hypothesis testing

Details Interpolating GRAKE with two step delay hypothesis testing Interpolating GRAKE with two step delay hypothesis testing

2011-07-12

2011-07-12

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S316000

Reexamination Certificate

active

07978751

ABSTRACT:
The present invention provides a method and apparatus for adapting a current path delay estimate for path delay tracking. In order to determine the path delay an operating mode is selected and a set of hypothesized path delays are determined based on said operating mode. A metric for each hypothesized path delay is determined, and a current path delay estimate is adapted based on the computed metrics for the hypothesized path delays.

REFERENCES:
patent: 6363104 (2002-03-01), Bottomley
patent: 2002/0136234 (2002-09-01), Eriksson et al.
patent: 2006/0268962 (2006-11-01), Cairns et al.
patent: 2009/0268787 (2009-10-01), Cairns et al.
Garrett et al., Multipath Acquisition for Rake Reception in DS Packet Radio Systems, 1998, Military Communications Conference, 1998, MILCOM 98, Proceedings. IEEE, vol. 3, pp. 837-841.
Bottomley, Gregory E.; Ottosson, Tony; and Wang, Yi-Pin Eric., “A Generalized RAKE Receiver for Interference Suppression,” IEEE Journal on Selected Areas in Communications, vol. 18, No. 8, Aug. 2000, pp. 1536-1545.

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