A BTS extender being able to change its belonging sector

摘要

The invention selective for the intensity of a plurality of sectors signal of the digital stream transmission, and the digital stream to the rear end of the expansion unit connected to a wired received from cable attached the front end unit relates to the expansion of the mobile communication base station having a sector-changing function, respectively after the combination of the variable name, the downlink signal relay unit for the radio power is converted into high-frequency signals in the signal band which the base station transmits; The digital stream to a radio receiving a radio frequency signal from the terminal side-to-digital conversion that is correspondingly allocated to the plurality of sectors, and the input by varying the intensity of the divided signal are each selectively, from each of the the variable signal rear expansion unit after binding to the sector signal, the up signal relay unit to be transmitted to the front end device connected wire; And wherein consists the strength of each signal to the variable control of the control unit, in particular the control unit attenuation ratio for each attenuator in the downlink signal selection unit 230 and an uplink signal selection unit 300 respectively provided in the down / up signal relay unit here as controlling the intensity of the sector to change intensity of the entire sector signal based service being changed on the basis of the command data are then simultaneously and gradually also decreases be controlled by changing the sector signal included in the digital stream it is gradually increased be controlled, soft sector between the emitter to achieve the handoff.