Apparatus and method for controlling duplication structure of base station transceiver subsystem in a mobile communication system

An apparatus for controlling a duplication structure of a Base station Transceiver Subsystem (BTS), the BTS having M number of Frequency Assignments (FAs) including a first FA to an Nth FA, the apparatus comprising:

• a power divider having M number of output ports and one redundancy output port, the power divider dividing an input signal into equal-power signals each having 1/(M+1) power and outputting the power-divided signals through the M number of output ports and one redundancy output port;
• M number of receivers for demodulating signals outputted from the power divider, respectively;
• a redundancy receiver for demodulating a signal which has been processed by and is switched over from one of the M number of receivers according to a predetermined control;
• a switch connected to the redundancy output port, the switch connecting a signal outputted from the redundancy output port to the redundancy receiver according to a predetermined control;
• and
• a controller which monitors operation states of the M number of receivers and controls the switch to connect a redundancy signal to the redundancy receiver when the controller detects one abnormally-operating receiver from among the M number of receivers, the redundancy signal being outputted from the redundancy output port.

An apparatus for controlling a duplication structure of a Base station Transceiver Subsystem (BTS), the BTS having three sectors including an α sector to a γ sector and four Frequency Assignments (FAs) including a first FA to a fourth FA, the apparatus comprising:

• three power dividers, each of which has four output ports and one redundancy output port, each of the power dividers dividing an input signal into equal-power signals each having 1/5 power and outputting the power-divided signals through the four output ports and one redundancy output port;
• twelve receivers for demodulating signals outputted from the output ports of the three power dividers, respectively;
• a redundancy receiver for demodulating a signal which has been processed by and is switched over from one of the twelve receivers according to a predetermined control;
• a 4:1 switch connected to each of redundancy output ports of the three power dividers, the 4:1 switch connecting a signal outputted from one of the redundancy output ports to the redundancy receiver according to a predetermined control;
• and
• a controller which monitors operation states of the twelve receivers and controls the 4:1 switch to connect a redundancy signal to the redundancy receiver when the controller detects one abnormally-operating receiver from among the twelve receivers, the redundancy signal being outputted from a redundancy output port of a power divider connected to the abnormally-operating receiver.

A method for controlling a duplication structure of a Base station Transceiver Subsystem (BTS), the BTS having N number of sectors including a first sector to an Nth sector and M number of Frequency Assignments (FAs) including a first FA to an Nth FA, the method comprising the steps of:

• dividing an input signal into equal-power signals via N number of power dividers, each of which has M number of output ports and one redundancy output port, and each of the equal-power signals having 1/(M+1) power;
• outputting the power-divided signals through the M number of output ports and one redundancy output port;
• demodulating signals output from the output ports of the N number of power dividers, respectively via (N×M) number of receivers;
• demodulating a signal which has been processed by and is switched over from one of the (N×M) number of receivers according to a predetermined control via a redundancy receiver;
• connecting to each of redundancy output ports of the N number of power dividers via a switch, the switch connecting a signal output from one of the redundancy output ports to the redundancy receiver according to a predetermined control;
• and
• monitoring operation states of the (N×M) number of receivers and controlling the switch to connect a redundancy signal to the redundancy receiver when the controller detects one abnormally-operating receiver from among the (N×M) number of receivers via a controller, the redundancy signal being outputted from a redundancy output port of a power divider connected to the abnormally-operating receiver.

A method for controlling a duplication structure of a Base station Transceiver Subsystem (BTS), the BTS having M number of Frequency Assignments (FAs) including a first FA to an Nth FA, the method comprising the steps of:

• dividing an input signal into equal-power signals each having 1/(M+1) power via a power divider having M number of output ports and one redundancy output port;
• outputting the power-divided signals through the M number of output ports and one redundancy output port;
• demodulating signals output from the power divider, respectively via M number of receivers;
• demodulating a signal which has been processed by and is switched over from one of the M number of receivers according to a predetermined control via a redundancy receiver;
• connecting to the redundancy output port via a switch, the switch connecting a signal output from the redundancy output port to the redundancy receiver according to a predetermined control;
• and
• monitoring operation states of the M number of receivers and controlling the switch to connect a redundancy signal to the redundancy receiver when the controller detects one abnormally-operating receiver from among the M number of receivers via a controller, the redundancy signal being output from the redundancy output port.

A method for controlling a duplication structure of a Base station Transceiver Subsystem (BTS), the BTS having three sectors including an α sector to a γ sector and four Frequency Assignments (FAs) including a first FA to a fourth FA, the method comprising the steps of:

• dividing an input signal into equal-power signals each having 1/5 power via three power dividers, each of which has four output ports and one redundancy output port;
• outputting the power-divided signals through the four output ports and one redundancy output port;
• demodulating signals output from the output ports of the three power dividers, respectively via twelve receivers;
• demodulating a signal which has been processed by and is switched over from one of the twelve receivers according to a predetermined control via a redundancy receiver;
• connecting to each of redundancy output ports of the three power dividers via a 4:1 switch, the 4:1 switch connecting a signal output from one of the redundancy output ports to the redundancy receiver according to a predetermined control;
• and
• monitoring operation states of the twelve receivers and controlling the 4:1 switch to connect a redundancy signal to the redundancy receiver when the controller detects one abnormally-operating receiver from among the twelve receivers via a controller, the redundancy signal being output from a redundancy output port of a power divider connected to the abnormally-operating receiver.