| 摘要 |
PURPOSE: A base station device is provided to divide and multiply transmission signals in a base station to merge sectors and to synthesize reception signals, so as to obtain required service areas and to implement excellent speech quality. CONSTITUTION: A signal converting processor(610) converts baseband signals to transmit the baseband signals to a signal distributor(620). The signal distributor distributes the baseband signals to a first/a second transmission power multipliers(631,635). The signal converting processor filters the baseband signals for being transmitted to antennas(A,B), to remove mixed noises. The signal converting processor converts the baseband signals into intermediate frequency(IF) band signals, and transmits the IF band signals to the signal distributor. The first transmission power multiplier converts the distributed signals into sky wave band signals loaded into a carrier. A first variable amplifier(633) amplifies the sky wave band signals. A first amplifier(634) receives the firstly-amplified signals to re-amplify the signals, and transmits the re-amplified signals to the antenna(A). The second transmission power multiplier converts the distributed signals into sky wave band signals. The sky wave band signals are transmitted to a second variable amplifier(637). The outputted sky wave band signals are transmitted to a second amplifier(638).
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