Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-06-29
2011-10-25
Beamer, Temica M (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S562100, C455S063400
Reexamination Certificate
active
08046027
ABSTRACT:
A wireless communication base station sharing apparatus for sharing one antenna between a main system and a subsystem is provided. In the wireless communication base station sharing apparatus, a first signal combiner/distributor is connected to a transmission/reception signal line of a main system duplexer through a first port, distributes a signal received through the first port to second and third ports, combines the signals received through the second and third ports according to the phases of the signals, and provides the combined signal through the first port or a fourth port. A second signal combiner/distributor is connected to a transmission/reception signal line of a subsystem duplexer through a fifth port and the antenna through an eighth port, distributes a signal received through the fifth port to sixth and seventh ports, combines the signals received through the sixth and seventh ports according to the phases of the signals, and provides the combined signal through the fifth or eighth port. A first filter is provided in a signal path between the second port of the first signal combiner/distributor and the sixth port of the second signal combiner/distributor. A second filter is provided in a signal path between the third port of the first signal combiner/distributor and the seventh port of the second signal combiner/distributor.
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Hwang Jin-Chul
Kim Byung-Chul
Kim Duk-Yong
Kim Yon-Tae
Park Sang-Sig
Beamer Temica M
Cha & Reiter LLC
KMW Inc.
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