| 摘要 |
PROBLEM TO BE SOLVED: To provide a base station dispersion device enabling a wide area high-speed data communication in a system in which a TDD mode and a FDD mode coexist. SOLUTION: An outgoing sound signal is converted into a TDD signal by a transmitter 2A, an incoming TDD signal is converted into a sound signal by a receiver 3A, an outgoing sound signal is converted into a FDD signal by a transmitter 2B, and an incoming FDD signal is converted into a sound signal by a receiver 3B. High frequency signals from the transmitters 2A, 2B, and the receivers 3A and 3B, are connected to a high frequency cable 13 by a branching device 22 through a branch circuit 4, branched into an outgoing direction and incoming direction again through a base station dispersion device 91A, a coupler 43A and a branch circuit 5A, amplified by amplifier circuits 6A, 7A, respectively, and then connected to an antenna 84A of a mobile station through a branch circuit 8A. The rest of the high frequency signals is connected to the base station dispersion device 91B of a next stage through a connection terminal 12A and a high frequency cable 14.
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