Mobile communication system, extension transmission/reception server, extension transmission/reception controller, base station, radio network controller, mobile station and communication method

摘要

A mobile communication system (100) includes an extension transmission/reception server (30) configured to transmit/receive user data transmitted/received between mobile stations (10a, 10b) to/from a base station (20a, 20b) by using an extension transmission/reception transmitting/receiving the data within a radio access network (50), and the base station configured to transmit/receive the user data to/from the extension transmission/reception server.