| 摘要 |
PROBLEM TO BE SOLVED: To select and connect the best base station by connecting a data line between a base station radio device and a line control unit, transmitting the limiter voltage of the base station radio station by a data line, and automatically selecting the base station having maximum limiter data. SOLUTION: A call signal from a mobile station 1 to a control board 8 is sent to a channel control part 6 of the line control unit 5 through one of base station radio devices 2-1 to 2-n. The base station radio devices 2-1 to 2-n convert limiter voltages which are proportional to an input electric field by A/D converters 3-1 to 3-n and transmission parts 4-1 to 4-n perform the conversion for data transmission by perdetermined code system the and send the results to a data comparison part 7 of the line control unit 5. Then the data of the respective base station transmission parts 4-1 to 4-n are compared to find the largest data, and the channel control part 6, while connecting to the best station according to the base station information, blocks a base station in overreach relation with the connected base station to prevent radio interference with another call. Thus, the best line between the mobile station and base station is traced and connected. |
