| CPC H04B 7/15542 (2013.01) [H04B 7/0413 (2013.01); H04B 7/15535 (2013.01)] | 8 Claims |
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1. A millimeter-wave repeater comprising:
a donor input/output unit configured to:
separate a downlink signal and an uplink signal of a millimeter-wave radio signal,
perform low-noise amplification on an input downlink signal,
transmit the amplified downlink signal to a donor channel filter unit, and
output the uplink signal input from the donor channel filter unit in an assigned level;
the donor channel filter unit configured to:
filter the amplified downlink signal via a band pass filter,
convert the filtered amplified downlink signal into an intermediate frequency signal by using a frequency mixer,
filter the intermediate frequency signal via a low-band pass filter,
perform channel filtering on the filtered intermediate frequency signal through a plurality of band pass filters,
transmit the channel-filtered intermediate frequency signal to a donor multiplex transmission unit, and
convert the uplink signal from the donor multiplex transmission unit into a signal of a millimeter-wave band by using the frequency mixer and transmit the signal of the millimeter-wave band to the donor input/output unit, the donor channel filter unit including a reference signal unit for generating and transmitting a reference frequency signal;
the donor multiplex transmission unit including a multiplexer for coupling the channel-filtered intermediate frequency signal and the reference frequency signal and a communication signal, and configured to transmit the uplink signal to the donor channel filter unit;
a transmission unit configured to transmit a signal;
a server multiplex transmission unit including a downlink multi-distribution unit configured to separate, from the downlink signal input to the transmission unit, a modem signal for communication and the reference frequency signal for synchronization with a phase synchronization circuit, and an uplink transmission unit configured to transmit the uplink signal via a server channel filter unit to the transmission unit;
the server channel filter unit configured to convert an intermediate frequency downlink signal input to the server multiplex transmission unit into a signal in a millimeter-wave band by using the frequency mixer and transmit the signal in the millimeter-wave band to a server input/output unit, perform frequency mixing on an uplink frequency of the server input/output unit and convert a mixed signal into an intermediate frequency, and perform channel filtering on a converted signal and transmit a filtered signal to the server multiplex transmission unit; and
the server input/output unit configured to:
output the downlink signal output from the server channel filter unit in an assigned level, and
perform low-noise amplification on the uplink signal, and
transmit the amplified signal to the server channel filter unit.
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