Base station device achieving effective use of frequencies...

Details Base station device achieving effective use of frequencies... Base station device achieving effective use of frequencies...

2007-04-03

2007-04-03

Trinh, Sonny (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S101000, C455S277100

Reexamination Certificate

active

10963552

ABSTRACT:
A base station device provided with a plurality of antennas has a mode, in which all the antennas are used, and a mode, in which the plurality of antennas are divided into a plurality of groups each including two or more antennas to be used independently. An array antenna pattern is formed selectively in these modes. When the array antenna pattern is to be formed in the mode of using all the antennas, a signal of one synthesizer is applied to transmission/reception circuits of all the antennas. In the mode of using antennas divided into the plurality of groups, signals of different synthesizers are supplied to the transmission/reception circuits of the antennas.

REFERENCES:
patent: 6085076 (2000-07-01), Lindsay et al.
patent: 6360088 (2002-03-01), Shi et al.
patent: 6445910 (2002-09-01), Oestreich
patent: 6553078 (2003-04-01), Åkerberg
patent: 6700865 (2004-03-01), Yamamoto et al.
patent: 7006809 (2006-02-01), Petrov et al.
patent: 7106271 (2006-09-01), Friday
patent: 3326416 (2002-07-01), None

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