Method and apparatus for searching cells utilizing down link...

Details Method and apparatus for searching cells utilizing down link... Method and apparatus for searching cells utilizing down link...

2006-03-29

2009-11-10

Tran, Khai (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S130000

Reexamination Certificate

active

07616679

ABSTRACT:
An apparatus for searching for a cell in a mobile communication system, including: a preamble sequence storage unit storing preamble sequences each of which corresponds to one preamble index, and a cell searching unit correlating a received signal and the stored preamble sequences in a time domain and identifying the preamble index corresponding to the received signal. The cell searching apparatus correlates a received signal and stored preamble sequences in a time domain. The apparatus employs binary quantization of preamble sequences to reduce calculation and memory size. Also, the stored preamble sequences are phase pre-rotated according to a segment number, to prevent from a burden of frequency offset correction caused by three different hypotheses. Accordingly, a complexity of the cell searching apparatus is reduced and cell searching performance becomes more accurate.

REFERENCES:
patent: 7315566 (2008-01-01), Tanno et al.
patent: 2005/0157637 (2005-07-01), Feng et al.
patent: 2005/0185743 (2005-08-01), Li
patent: 2006/0062196 (2006-03-01), Cai et al.
patent: 1592192 (2005-11-01), None
patent: 10-2005-0003800 (2005-01-01), None
patent: 10-2006-0010309 (2006-02-01), None
patent: WO 2004/049618 (2004-06-01), None

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