Radio base apparatus, transmission power control method, and...

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers

Reexamination Certificate

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Details

C455S561000, C455S067140, C455S277200

Reexamination Certificate

active

07398098

ABSTRACT:
In a mobile communication system having a plurality of terminals including a diversity terminal, an adaptive array base station controls a down-link transmitting power waveform for a terminal establishing access such that transmitting power is decreased at a timing when a reception level of a chip antenna is measured and that transmitting power is increased at a timing when a reception level of a whip antenna as a transmission antenna is measured. In the diversity terminal, therefore, the whip antenna is more likely to be selected as a receiving antenna, thereby improving down-link reception performance.

REFERENCES:
patent: 5239541 (1993-08-01), Murai
patent: 6847810 (2005-01-01), Shen et al.
patent: 7139324 (2006-11-01), Ylitalo et al.
patent: 1 014 599 (2000-06-01), None
patent: 3-226124 (1991-10-01), None
patent: P2000-22611 (2000-01-01), None
patent: P2000-106539 (2000-04-01), None
Nobuyoshi Kikuma, “Adaptive Signal Processing by Array Antenna”,Kagaku Gijutsu Shuppan, pp. 35-49, Nov. 1998.

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