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Advancements in IP-Based Wireless Systems: Insights from GSC-9 Seoul Conference

At the GSC-9 conference in Seoul, experts discussed significant updates in IP-based wireless capabilities, emphasizing collaboration between ATIS, 3GPP, and IETF. Key highlights include enhancements in IMS (IP Multimedia Subsystem), integration of WLAN interworking, the adoption of SIP/SDP for call control, and the evolution of release functionalities. This presentation explored IMS as a convergence platform for various access methods and evaluated strategies for enhancing end-to-end IP support across multiple access networks, both wireless and wireline.

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Advancements in IP-Based Wireless Systems: Insights from GSC-9 Seoul Conference

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  1. IP over Wireless Asok Chatterjee, Ericsson ATIS GSC Delegation GSC-9, Seoul

  2. IP in the 3G Wireless • ATIS is working extensively on IP based wireless capabilities (in collaboration with other Partners in 3GPP) • IP is supported in handsets, radio access network, and core network • Throughput is mainly dependent on radio access technology (GPRS, EDGE, WCDMA) • Close coordination with IETF on IP based services • IMS (IP Multimedia Subsystem) • WLAN Interworking GSC-9, Seoul

  3. Release 5 Functionality • Baseline IMS has been designed • SIP/SDP adopted as call control protocol • DIAMETER adopted for authentication, authorization, accounting, profile download • COPs adopted for QoS/Policy control • IPSec with AKA adopted for access security GSC-9, Seoul

  4. Release 6 Functionality • IMS Enhancements • Documentation changed to be transport independent • Added Presence Capability • Added Session Based Instant Messaging Capability • Added Conferencing Capability • WLAN Interoperability Added (Scenarios 1-3) • Integrated Billing (Scenario 1) • Authentication/Authorization from Home provider (Scenario 2) • Access to Home services (such as IMS) (Scenario 3) GSC-9, Seoul

  5. IMS as A Basis for Convergence • IMS is being used as basis for network with different wireless access methods • Can this be used as a vehicle for network with wireline access too? • ATIS is actively studying IMS as the potential platform for convergence between wireless and wireline GSC-9, Seoul

  6. A Grand Vision of End-to-End IP • The expertise in IMS resides in ATIS, and in other partners of 3GPP • Industry has come together for an incredible success story for the wireless world • How can we leverage this expertise to secure end-to-end support of IP for all modes of access? • How can we proceed in the most expeditious way? GSC-9, Seoul

  7. Thank you asok.chatterjee@ericsson.com GSC-9, Seoul

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