Apparatus for forming beam in a base station of a mobile...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S450000, C455S082000, C455S024000, C455S025000

Reexamination Certificate

active

07130661

ABSTRACT:
An apparatus for forming a beam in a base station is provided and includes a plurality of channel cards for processing and outputting signals to be transmitted to each channel; a signal synthesizer/distributor for synthesizing the signals from the channel cards and compensating phases of the signals; a channel controller for controlling beams of the signals from the signal synthesizer/distributor according to a demand of a mobile communication terminal and outputting the controlled beam signals; a middle frequency generating block for receiving the signals from the channel controller and synthesizing the signals in each frequency to generate middle frequency signals; a transmitter for converting the middle frequency signals received from the middle frequency generating block into signals in a transmitting band; an RFB for amplifying the signals from the transmitter into signals in an output band and controlling phases of transmitting and receiving signals; and an antenna connection block for switching the signals to corresponding antennas of the RFB so that beams can be generated.

REFERENCES:
patent: 5603089 (1997-02-01), Searle et al.
patent: 6286994 (2001-09-01), Boesel et al.
patent: 6640111 (2003-10-01), Shapira
patent: 6665279 (2003-12-01), Kwak et al.

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