1 GSC-9, Seoul

Asok Chatterjee, asok.chatterjee@ericsson.comCONTACT:

Joint GTSC/GRSC; #4.5AGENDA ITEM:

IP Over WirelessTITLE:

ATISSOURCE: GSC9/Joint_-021

IP over WirelessIP over Wireless

Asok Chatterjee, Ericsson

ATIS GSC Delegation

GSC-9, Seoul2

IP in the 3G WirelessIP 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, Seoul3

Release 5 FunctionalityRelease 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, Seoul4

Release 6 FunctionalityRelease 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, Seoul5

IMS as A Basis for IMS as A Basis for ConvergenceConvergence

• 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, Seoul6

A Grand Vision of End-to-End IPA 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 GSC-9, Seoul

Asok Chatterjee, asok.chatterjee@ericsson.comCONTACT:

Joint GTSC/GRSC; #4.5AGENDA ITEM:

IP Over WirelessTITLE:

ATISSOURCE: GSC9/Joint_-021

Thank youThank you

asok.chatterjee@ericsson.com