Distributed antenna device for intermediate frequency conversion / process
First Claim
1. A distributed antenna device for intermediate frequency conversion/process, comprising:
- a hub unit including first input/output means for transmitting and receiving radio frequency signals to/from a base transceiver station, second input/output means for transmitting and receiving signals over a signal line, first signal processing means for converting an output signal from said first input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal, and second signal processing means for converting an output signal from said second input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal;
a distributed antenna module including a plurality of antenna modules, each of said antenna modules including third input/output means for transmitting and receiving signals to/from said hub unit, fourth input/output means for transmitting and receiving radio frequency signals to/from a subscriber terminal, third signal processing means for converting an output signal from said third input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal, and fourth signal processing means for converting an output signal from said fourth input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal; and
said signal line connected between said second input/output means in said hub unit and said third input/output means in said distributed antenna module.
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Abstract
A distributed antenna device for intermediate frequency conversion/process which comprises a distributed antenna module including a plurality of antenna modules packaged therein, each for transmitting and receiving signals to/from a subscriber terminal through a low-power antenna, a hub unit for transmitting and receiving signals to/from a base transceiver station through a certain antenna, and a coaxial cable connected between the hub unit and the distributed antenna module for transferring signals therebetween. According to this invention, the distributed antenna device has the effect of minimizing the number of dead zones and maximizing the entire antenna output capacity with lower power than conventional outdoor switching centers.
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Citations
5 Claims
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1. A distributed antenna device for intermediate frequency conversion/process, comprising:
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a hub unit including first input/output means for transmitting and receiving radio frequency signals to/from a base transceiver station, second input/output means for transmitting and receiving signals over a signal line, first signal processing means for converting an output signal from said first input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal, and second signal processing means for converting an output signal from said second input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal;
a distributed antenna module including a plurality of antenna modules, each of said antenna modules including third input/output means for transmitting and receiving signals to/from said hub unit, fourth input/output means for transmitting and receiving radio frequency signals to/from a subscriber terminal, third signal processing means for converting an output signal from said third input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal, and fourth signal processing means for converting an output signal from said fourth input/output means into an intermediate frequency signal and processing the converted intermediate frequency signal; and
said signal line connected between said second input/output means in said hub unit and said third input/output means in said distributed antenna module. - View Dependent Claims (2, 3, 4, 5)
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Specification