Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-05-15
2007-05-15
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S127300
Reexamination Certificate
active
10635502
ABSTRACT:
A linear power amplifier (LPA) shelf for a mobile communication base station including a plurality of LPA types installed in one LPA shelf. The LPA shelf includes a signal dividing unit and a signal combining unit, which can connect either a single path or multiple paths. The LPA shelf further includes a first LPA type conversion unit and a second LPA type conversion unit, which perform a switching operation so as to use one LPA of six LPAs as either a redundant LPA or an LPA that amplifies a gamma sector signal. Accordingly, since a plurality of LPA types can be supported with one LPA shelf, it is possible to prevent service from being stopped and prevent the waste of time, cost and human resources due to the replacement of equipment.
REFERENCES:
patent: 6094097 (2000-07-01), Ke
patent: 6895230 (2005-05-01), Blount et al.
patent: 6996379 (2006-02-01), Khorram
patent: 2003/0058811 (2003-03-01), Shurvinton
patent: 2004/0014500 (2004-01-01), Chun
Ked & Associates LLP
LG-Nortel Co., Ltd.
Nguyen Tu X.
Urban Edward F.
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