| 摘要 |
PURPOSE:To enable an adjacent section to be split in matching with the service area with simple equipment by providing a reception means for a control signal from a base station and a mobile station, a means relaying and amplifying a reception signal and a means radiating the signal again in a system splitting the service area. CONSTITUTION:A radio wave radiated again from a relay amplifier installation 13 relating to a bordering system has intensities 14, 15, and the location of the installation 13 is selected so that the radio wave closer to the base station 3 is stronger than the radio wave from the base station 4 and the radio wave closer to the base station 4 is nearly the same strength as that of the radio wave from the base station 4 at the border 8 of the section. The radio received by a counter base station antenna 11 is branched by an antenna multicoupler 21 and only a control channel is amplified selectively by a channel unit 23 and radiated again from the counter mobile station antenna 12 via the antenna multicoupler 22. Moreover, the received radio wave of the antenna 12 is subject to selection and amplification of the control channel only similarly and the result is radiated again from the antenna 11. Thus, the radio section is split in matching with the service section by an inexpensive installation. |
