Method and apparatus for programmable and configurable sector localization in distributed antenna system

A method of supporting a variable sectorization in a DAS (Distributed Antenna System), the method comprising:

• receiving a downlink RF signal of a corresponding base station among a plurality of supporting base stations;
• filtering the downlink RF signal to generate a filtered signal;
• adjusting a power level of the filtered signal to generate a level-adjusted signal;
• splitting each of the level-adjusted signals into a plurality of splitted signals by the number of supporting sectors;
• selectively attenuating, for each of the supporting sectors, at least one of the plurality of splitted signals in order to control a combination of the respective splitted signals associated with the individual level-adjusted signals, wherein the selectively attenuating includes applying the maximum amount of attenuation to the at least one of the plurality of splitted signals that requires not to be distributed to the supporting sectors;
• combining, for each of the supporting sectors, the selectively attenuated signals to generate a downlink sector signal;
• and
• optically transmitting, for each of the supporting sectors, the downlink sector signal to at least one remote unit located in the respective supporting sector.

A method of supporting a variable sectorization in a DAS (Distributed Antenna System), the method comprising:

• receiving a downlink RF signal of a corresponding base station among a plurality of supporting base stations;
• filtering the downlink RF signal to generate a filtered signal;
• adjusting a power level of the filtered signal to generate a level-adjusted signal;
• presenting a plurality of downlink splitters to split each of level-adjusted signals into a plurality of splitted signals by the number of the supporting sectors;
• presenting a plurality of downlink combiners to generate a plurality of downlink sector signals for the supporting sectors;
• presenting a plurality of RF circuit to connect each of the plurality of downlink splitters to all the plurality of downlink combiners, each downlink RF circuit comprising a downlink attenuator connected to an output port of the downlink splitter and a downlink power controller connected to an input port of the downlink combiner;
• selectively attenuating, by the downlink attenuators, at least one of the plurality of splitted signals for each of the supporting sectors, wherein the selectively attenuating includes applying the maximum amount of attenuation to the at least one of the plurality of splitted signals that requires not to be distributed to the supporting sectors;
• and
• optically transmitting, for each of the supporting sectors, the downlink sector signal to at least one remote unit located in the respective supporting sector.