COMMUNICATION SYSTEM, USER DEVICE THEREOF AND SYNCHRONIZATION METHOD THEREOF

PROBLEM TO BE SOLVED: To provide a communication system, a user device thereof, and a synchronization method thereof. SOLUTION: The communication system includes the user device and a wireless network. Ciphering configuration information is transmitted to the user device. The wireless network transm...

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Bibliographische Detailangaben
1. Verfasser:	GO SHISHO
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a communication system, a user device thereof, and a synchronization method thereof. SOLUTION: The communication system includes the user device and a wireless network. Ciphering configuration information is transmitted to the user device. The wireless network transmits an RRC re-configuration message containing ciphering configuration information to a user device on a logical link. The user device suspends all measurement operation that transmit measurement report after receiving the RRC re-configuration message. The user device changes to a new ciphering configuration according to the RRC re-configuration message, and the wireless network changes to the new ciphering configuration. The user device transmits an RRC response message to respond to the RRC re-configuration message to the wireless network. The user device resumes the measurement operation after changing to the new configuration. COPYRIGHT: (C)2009,JPO&INPIT