H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/204 (2006.01) H04B 7/26 (2006.01)
Patent
CA 2112342
ABSTRACT OF THE DISCLOSURE A both-way RF repeater for use in a Personal Hand Phone system (PHP), a Personal Communications System (PCS), or in a Digital European Cordless Telephone (DECT), which are operated under the FDMA/TDD or TDMA/TDD or CDMA scheme, includes "up-stream" coaxial connectors to connect a common coaxial cable and/or two mutually isolated coaxial cables and/or an antenna system directed toward a base station, and "down-stream" coaxial connectors to connect one or more coaxial cables and/or antenna systems and/or RF radiation cables directed toward the subscribers within micro-cell serving areas. In addition, two mutually isolated amplifiers are provided for amplifying up-link and down-link RF signals. A control circuit ensures that undesired self-oscillations are avoided. The control means includes at least one RF signal detector and a control circuit, which controls the linearity, output level, and/or gain of the amplifiers. By using the control means, the down-link amplifier gain is increased and the up-link amplifier gain is decreased simultaneously when the detector on the down-link amplifier detects RF signals transmitted from the base station.
G. Ronald Bell & Associates
Niki Yoshiro
LandOfFree
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