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Title:
RAKE SYNTHESIZER AND MOBILE COMMUNICATION TERMINAL
Document Type and Number:
Japanese Patent JP2004247960
Kind Code:
A
Abstract:

To achieve high quality in communication by performing efficient rake synthesis with the maximum ratio synthesis even if simultaneously processing a signal where an amplitude ratio between a channel for channel estimation and that for data demodulation is different from each other.

Signals from first and second base stations in signals obtained by each of fingers 4-1 to 4-n are given to each of synthesizers 52-1, 52-2 for synthesis and the signal for each base station is obtained. The signals are individually amplified by amplifiers 53-1, 53-2 before being synthesized by a synthesizer 54. Additionally, at DPC measurement sections 56-1, 56-2, the reception amplitude ratio between the channel for channel estimation and that for data demodulation is measured for each of the first and second base stations. Gain control sections 57-1, 57-2 set each gain when the signals of the first and second base stations are amplified according to the reception amplitude ratio regarding the first and second base stations.


Inventors:
MIMURA MASAHIKO
Application Number:
JP2003035568A
Publication Date:
September 02, 2004
Filing Date:
February 13, 2003
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
H04B1/707; H04B1/712; H04B7/26; H04W16/28; H04W28/18; (IPC1-7): H04B1/707; H04B7/26
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Sadao Muramatsu
Ryo Hashimoto