COMBINER FOR USE IN MULTI-BAND BASE STATION SYSTEM AND METHOD FOR CONTROLLING COMBINER

The present disclosure relates to a combiner utilized in a multi-band base station system and including a plurality of first ports assigned different frequency bands and a second port in connection with a common feeder cable, including DC signal lines each branching from each first port and the second port, control signal lines each branching from each first port and the second port, switching modules on each of the DC signal lines, modems provided on each control signal line to modulate or demodulate an input control signal, and a control unit configured to control switching of each switching module according to an operation type of the combiner. The operation type includes a first type being responsive to signal inputs through at least some of the plurality of first ports and a second type being responsive to a signal input through the second port.