| 摘要 |
PURPOSE: A duplicating apparatus of a down converter card of a base station device is provided to improve performance of a reverse link by implementing physically separated reception path by constructing two DCCs having one reception path and provide a call service with an excellent duplication performance by allowing a redundancy DCC for duplicating to have one reception path. CONSTITUTION: An RxFU_a_A(10-1), an RxFU_b_A(10-2) and an RxFU_g_A(103) respectively receive alpha sector RF signal, beta sector RF signal and gamma sector RF signal according to a reception path 'A' from an antenna. An RxFU_a_B(20-1), an RxFU_b_B(20-2) and an RxFU_g_B(20-3) respectively receive alpha sector RF signal, beta sector RF signal and gamma sector RF signal according to a reception path 'B' from an antenna. An RFC(30) outputs a path switching control signal from the first through the fourth switch units if there is a trouble in the reception path. The first switching unit(40-1) outputs the alpha sector, the beta sector and gamma sector RF signal to DCC_a_A, DCC_b_A, DCC_g_A of the reception path 'A' and switches to a DCC_R according to a path switching control signal of the RFC(30) and outputs a corresponding RF signal if there is a trouble in the reception 'A'. The third switching unit(40-3) outputs the alpha sector, the beta sector and gamma sector RF signals to DCC_a_B, DCC_b_B, DCC_g_B of the reception path 'B', and switches to a DCC_R according to a path switching control signal of the RFC(30) and outputs a corresponding RF signal if there is a trouble in the reception path 'B'. DCC_a_A(50-1), DCC_b_A(50-2), DCC_g_A(50-3) down-converts the alpha sector, beta sector and gamma sector RF signal and compensates a radio path loss. A duplicating DCC_R(70) down-converts the RF signal inputted through a redundancy path of the first switching unit(40-1) or the third switching unit(40-3) and compensates a radio path loss. The second switching unit(40-2) and the fourth switching unit(40-4) switch the down-converted RF signal to the reception path 'A' of a baseband terminal(80-1) and a baseband terminal(80-2) of the reception path 'B' and outputs it.
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