| 摘要 |
A mobile radio system includes a number of radio base stations (2, 3, 4, 5, 6, 16, 26 and 28), each connected to a radio antenna (7, 34, 8, 17, 27 and 29). It also includes plural mobile stations, such as mobile stations (1 and 18), which are in radio communication with base stations (2 and 16), respectively. The base stations of the fixed radio network are interconnected by ethernet buses (12, 14). Data, etc., is communicated around the fixed network using any suitable packet data routing method. Each base station has an associated base site interfacing controller (9, 10, 11, 15, 22, 24), which carries out the usual base station control functions, but also hosts packet data network agents which represent the mobile stations on the packet data network and act to interface and convert between the radio system communications protocol used between the mobile stations and base stations and the packet data network communications protocol used in the fixed packet data network.
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