Mobile communication system

A mobile communication system comprising user equipments, base stations and a radio network controller, the user equipments performing data transmission/reception using an orthogonal frequency division multiplexing (OFDM) system as a downlink access system and a single career frequency division multiple access (SC-FDMA) system as an uplink access system, the base stations provided respectively to cells for specific subscribers that are open only to specific ones of said user equipments or subscribers and cells for non-specific users that are allowed to be used by non-specific ones of said user equipments or users and executing scheduling of assignment of radio resources to said user equipments, the radio network controller managing a desired tracking area in which said user equipments are located through a plurality of said base stations and performing paging on said user equipments, in which said user equipments access said cells for specific subscribers using access allowance information issued upon use of said cells for specific subscribers being allowed, wherein:

• said base stations provided to said cells for specific subscribers refer to identification information of said user equipments notified by said radio network controller and transmit a tracking area update request for said radio network controller from said user equipments to said radio network controller;
• said radio network controller determines whether said user equipments that have transmitted said tracking area update request are allowed to use said cells for specific subscribers, and in a case where the use is allowed, transmits a signal for allowing the assignment of radio resources to said user equipments and said access allowance information to the base stations provided to said cells for specific subscribers;
• and
• said user equipments access the base stations provided to said cells for specific subscribers using said access allowance information received from the base stations provided to said cells for specific subscribers.