Cell search determination circuit

Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...

Reexamination Certificate

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C370S342000

Reexamination Certificate

active

07072318

ABSTRACT:
A cell search determination circuit is provided which is capable of reducing misdetections in the identification of a scramble code number. A mobile station in W-CDMA cellular communications confirms a scramble code identified by cell search. The cell search determination circuit includes a first finger502for performing correlation operation of the scramble code and a receiving signal, a second finger501for performing correlation operation of a first synchronous channel code and the receiving signal, an averager503for generating a phase vector in which noise components of an output from the first finger502are suppressed, a first power adder for determining and integrating a power of the first finger502, a second power adder for determining and integrating a power of the second finger501, a first threshold determiner514for outputting a threshold value corresponding to an output from the first power adder, and a comparator515for performing a threshold determination of an output from the second power addition means using the threshold value.

REFERENCES:
patent: 6069915 (2000-05-01), Hulbert
patent: 6167037 (2000-12-01), Higuchi et al.
patent: 6717930 (2004-04-01), Sezgin et al.
patent: 6728229 (2004-04-01), Lim
patent: 6731673 (2004-05-01), Kotov et al.
patent: 6738411 (2004-05-01), Ogawa et al.
patent: 6822999 (2004-11-01), Lee et al.
patent: 0 825 737 (1998-02-01), None
patent: 1 035 665 (2000-09-01), None
European Search Report dated Mar. 11, 2003.
Wang, et al. “Cell Search in W-CDMA”, IEEE Journal on Selected Areas In Communication, vol. 18, No. 8, Aug. 2000, pp. 1470-1478, XP002224578.
Higuchi, et al. “Experiments on 3-Step Fast Cell Search Method using TSTD in W-CDMA Mobile Radio”, Technical Report of IEICE, Nov. 1999, pp. 99-105, XP002907493.

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