Title :
Interworking of Wimax and 3GPP networks based on IMS [IP Multimedia Systems (IMS) Infrastructure and Services]
Author :
Xu, Fangmin ; Zhang, Luyong ; Zhou, Zheng
Author_Institution :
Beijing Univ. of Posts & Telecommun.
fDate :
3/1/2007 12:00:00 AM
Abstract :
The 3GPP specifies the IP multimedia subsystem (IMS) to provide several kinds of multimedia services in UMTS Release 5 and later releases. Interworking at the service layer between 3GPP and Wimax networks requires interworking between IMS functionality. By studying several interconnection scenarios and the main functionality of IMS, this article analyzes how the interworking of 3GPP and Wimax networks can be performed to support different levels of service interconnection. Special attention is paid to the interconnection at the session negotiation level, using SIP (the base protocol of the IMS), COPS/Go, and diameter protocols/interface to provide session negotiation with QoS and AAA (authentication authorization accounting) support
Keywords :
3G mobile communication; IP networks; WiMax; multimedia communication; quality of service; signalling protocols; telecommunication security; 3GPP networks; IMS; IP multimedia subsystem; QoS; SIP; UMTS Release 5; Wimax interworking; authentication authorization accounting; diameter protocols; service interconnection; session negotiation level; 3G mobile communication; Access protocols; Authorization; Databases; Multimedia systems; Network servers; Streaming media; Topology; WiMAX; Wireless LAN;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2007.344596
