Method and apparatus for frequency estimation using...

Details Method and apparatus for frequency estimation using... Method and apparatus for frequency estimation using...

2007-01-30

2007-01-30

Anderson, Matthew (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S423000, C455S306000, C455S307000, C375S240210

Reexamination Certificate

active

10721060

ABSTRACT:
A method of frequency estimation for a GSM communications system is disclosed. First, the a frequency control channel data burst is received and downsampled into a plurality of subsets. Then, the subsets are filtered using an auto-regressive filter. The filtered subsets are then correlated and summed to determine a parameter r. The estimated frequency is calculated based upon the parameter r.

REFERENCES:
patent: 5537419 (1996-07-01), Parr et al.
patent: 5761250 (1998-06-01), Lin
patent: 5862192 (1999-01-01), Huszar et al.
patent: 6418175 (2002-07-01), Pukkila et al.
patent: 2003/0081695 (2003-05-01), Eilts et al.

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