1. SOURCE:ATIS TITLE:IP Over Wireless AGENDA ITEM:Joint GTSC/GRSC; #4.5 CONTACT:Asok Chatterjee, asok.chatterjee@ericsson.comasok.chatterjee@ericsson.com GSC9/Joint_- 021 1 GSC-9, Seoul IP over Wireless Asok Chatterjee, Ericsson ATIS GSC Delegation

2. 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

3. 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

4. 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)

5. 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

6. 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?

7. SOURCE:ATIS TITLE:IP Over Wireless AGENDA ITEM:Joint GTSC/GRSC; #4.5 CONTACT:Asok Chatterjee, asok.chatterjee@ericsson.comasok.chatterjee@ericsson.com GSC9/Joint_- 021 7 GSC-9, Seoul Thank you asok.chatterjee@ericsson.com