A radio base station for communicating with a mobile station using a radio frame includes a receiver which receives a predetermined code from the mobile station using a predetermined region of the radio frame, and a transmitter which, when the receiver receives the predetermined code, broadcasts structure information indicating a structure of the radio frame.

 
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< APPARATUS AND METHOD OF CIPHERING IN WIRELESS COMMUNICATIONS USER EQUIPMENT OPERATIVE WITH A PLURALITY OF RADIO ACCESS NETWORKS

> TRANSMISSION AND RECEPTION OF SYSTEM INFORMATION UPON CHANGING CONNECTIVITY OR POINT OF ATTACHMENT IN A MOBILE COMMUNICATION SYSTEM

> BASE TRANSCEIVER STATION AND CHANNEL RATE CONTROL METHOD
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