Cell search method and apparatus for mobile station in...

Details Cell search method and apparatus for mobile station in... Cell search method and apparatus for mobile station in...

2006-03-14

2006-03-14

Vu, Huy D. (Department: 2665)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000

Reexamination Certificate

active

07012909

ABSTRACT:
The present invention increases the detection accuracy of each of a first to a third steps of cell search to reduce the time required for detecting correct frame boundaries and scramble code. A mobile station inputs a received signal to a matched filter corresponding to a primary synchronization code PSC, and a multi-slot averaging section executes averaging over a plurality of slots in order to reduce the adverse effects of noise and interference. After the averaging over the plurality of slots, a multi-search averaging section further executes averaging over a plurality of searches. Subsequently, a peak detector selects a timing with which an average correlation value is largest, to detect slot boundaries.

REFERENCES:
patent: 6067460 (2000-05-01), Alanara et al.
patent: 6208684 (2001-03-01), Yellin et al.
patent: 2001/0040884 (2001-11-01), Bouquier et al.
patent: 2002/0122557 (2002-09-01), Aihara et al.
patent: 0825737 (1998-02-01), None
patent: 0930723 (1999-07-01), None
3rdGeneration Partnership Project; Techinical Specification Group Radio Access Network; Physical channels and mapping of transport channels onto physical channels (FDD) (Release 1999), 3GPP TS 25.211 V3.5.0 (Dec. 2000).

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