CDMA wireless base station

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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Details

C455S450000, C455S509000, C370S441000, C370S329000, C370S342000, C370S335000, C375S152000, C375S143000, C375S343000

Reexamination Certificate

active

06993344

ABSTRACT:
Disclosed is a W-CDMA wireless base station adapted to meet various specifications over a wide range to dynamically change the allocated numbers of RACH's and DPCH's depending on a cell radius and the number of Signatures. The W-CDMA wireless base station that performs an optimal channel allocation based on parameters received from an external network, comprises: a preamble detection and path search section adapted to perform an RACH preamble detection in a reception base band signal or perform a path search of the reception base band signal; demodulation section adapted to demodulate the reception base band signal by including therein a plurality of fingers and combining outputs of the fingers; a control section adapted to control said preamble detection and path search section to switch itself either to a preamble detection section or to a path search section so as to change the allocated numbers of RACH's and DPCH's based on the parameters.

REFERENCES:
patent: 6442153 (2002-08-01), Dahlman et al.
patent: 6532254 (2003-03-01), Jokinen
patent: 6792031 (2004-09-01), Sriram et al.
patent: 6792037 (2004-09-01), Meyer et al.
patent: 2002/0024993 (2002-02-01), Subramanian et al.
patent: 2002/0054625 (2002-05-01), Matsumoto et al.
patent: 2003/0012267 (2003-01-01), Jitsukawa et al.
patent: 2004/0081115 (2004-04-01), Parsa et al.
Moberg et al “Throughput of the WCDMA Random Access Channel” Mobile Communication Summit, Gateway, Ireland, Oct. 2000.

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