DISTRIBUTED ANTENNA SYSTEM AND METHOD

摘要

A system for the distribution of radio-frequency signals includes a main unit associated with a first radio communication set, a remote unit associated with a second radio communication set installed in a preset area, for radio coverage of the area, and a communication channel associated with the main and remote units, wherein the main unit and remote units have analogue modulation elements of signals to be sent on the communication channel. The remote unit includes a selective amplification unit associated with the second radio communication set and having analogue/digital conversion elements of signals coming from the main unit, through the communication channel, and/or of signals coming from the second radio communication set, digital filtering elements of digital signals coming out of the analogue/digital conversion elements and amplification elements of signals coming from the main unit, through the communication channel, and/or of signals coming from the second radio communication set.

主权项

1. A distributed antenna system comprising:
a main unit configured to exchange radio-frequency signals with a first base station unit and with a second base station unit through an optical communication channel, the first base station unit being configured to distribute a first radio-frequency signal type associated with a first frequency band and a first operator, and the second base station unit being configured to distribute a second radio-frequency signal type associated with a second frequency band and a second operator, the first radio-frequency signal type being different from the second radio-frequency signal type; and a remote unit configured to exchange radio-frequency signals with a first antenna unit and a second antenna unit through the optical communication channel, the first antenna unit being configured to cover a first coverage area and distribute the first radio-frequency signal type associated with the first frequency band and the first operator, the second antenna unit being configured to cover a second coverage area and distribute the second radio-frequency signal type associated with the second frequency band and the second operator, wherein the remote unit includes a first selective amplification unit and a second selective amplification unit, the first selective amplification unit configured to be dedicated to amplifying the first radio-frequency signal type associated with the first frequency band and the first operator, and the second selective amplification unit configured to be dedicated to amplifying the second radio-frequency signal type associated with the second frequency band and the second operator so as to independently control the distribution of different types of radio-frequency signals for each frequency band and for each operator.