Low complexity frequency-offset correction method

Details Low complexity frequency-offset correction method Low complexity frequency-offset correction method

2007-10-02

2007-10-02

Payne, David C. (Department: 2611)

Pulse or digital communications

Receivers

Automatic frequency control

C375S147000, C375S148000, C375S149000, C375S150000

Reexamination Certificate

active

10418302

ABSTRACT:
A receiver for use in a mobile communications network, the receiver comprising an input for receiving radio signals including control symbols and data symbols, a channel estimator arranged to use the control symbols to provide a channel estimate for correcting received data symbols, a first offset corrector for de-rotating the control symbols prior to their use in providing the channel estimate, a second offset corrector for rotating the channel estimate prior to its use in correcting the received data symbols, and an offset estimator arranged to generate estimates of frequency offset in the received radio signal, for use in the first and second offset correctors.

REFERENCES:
patent: 5799010 (1998-08-01), Lomp et al.
patent: 6229843 (2001-05-01), Lomp et al.
patent: 6363102 (2002-03-01), Ling et al.
patent: 6456608 (2002-09-01), Lomp
patent: 6697350 (2004-02-01), Lomp
patent: 6983009 (2006-01-01), Lomp
patent: 2003/0076812 (2003-04-01), Benedittis
patent: 2003/0193914 (2003-10-01), Lomp et al.
patent: 1160981 (2001-12-01), None

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