Carrier search methods and apparatus

Details Carrier search methods and apparatus Carrier search methods and apparatus

2006-08-15

2006-08-15

Nguyen, Chau (Department: 2665)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Fourier transform

C370S330000, C370S478000, C455S526000

Reexamination Certificate

active

07092353

ABSTRACT:
Transmitting signals, e.g., high power narrow band signals on a periodic basis to facilitate detection of a frequency band and/or carrier signal to be used for communication with a basestation are described. The detected frequency band may be a downlink frequency band. The uplink frequency band to be used can be determined from a know frequency relationship between the detected downlink carrier and a corresponding uplink carrier or by monitoring the detected downlink frequency band for information indicating the uplink frequency band/carrier to be used. Carrier search methods involving searching for the narrowband high power signals used to provide carrier information and/or to indicate the frequency band to be monitored are described. Power detection methods can be used to detect the high power signals avoiding the need for symbol timing synchronization and/or channel estimation with regard to detection of the signals used to locate the frequency band to be used.

REFERENCES:
patent: 5448569 (1995-09-01), Huang et al.
patent: 5475677 (1995-12-01), Arnold et al.
patent: 5493563 (1996-02-01), Rozanski et al.
patent: 5844939 (1998-12-01), Scherer et al.
patent: 5909433 (1999-06-01), Haartsen
patent: 5914933 (1999-06-01), Cimini et al.
patent: 5936570 (1999-08-01), Ghazvinian et al.
patent: 6131016 (2000-10-01), Greenstein et al.
patent: 6151512 (2000-11-01), Chheda et al.
patent: 6359867 (2002-03-01), Ali-Vehmas
patent: 6411644 (2002-06-01), Myer
patent: 2003/0091006 (2003-05-01), Peltola
patent: 2004/0095902 (2004-05-01), Laroia et al.
patent: 2004/0109432 (2004-06-01), Laroia et al.
patent: 2004/0224687 (2004-11-01), Rajkotia

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