1. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 1 Interworking Update II Stephen McCann, Siemens Roke Manor stephen.mccann@roke.co.uk

2. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 2 Wireless Interworking Internet Mobile Client W-ISP Access Network AC AAAH 3GPP2 MNO HLR AAAH 3GPP MNO AAAH Home ISP Roaming Broker

3. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 3 Interworking Scope The scope of the project is to enhance the 802.11 standard and amendments, through the generation of a standard (or RP) to add interworking capability to both cellular and external IP based networks (including the Internet)

4. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 4 Objectives To generate documents to enhance the IEEE 802.11 standard To provide recommend practice for access point to external network interoperability. These outputs will define and specify the addition of specific interfaces to deal with interworking (e.g. security) Creates a better hotspot user experience.

5. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 5 Way forward IEEE 802.11 requires some extra work in the DS to define external interworking TGe, TGf, TGi and TGk have started to do this already with functional definitions Accounting/Charging ? Policy ? Must address W-ISP, 3GPP & 3GPP2 specific requirements placed on IEEE 802.11

6. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 6 3GPP Can proposed 3GPP interworking model can be achieved from current IEEE 802.11 standards ?

7. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 7 WiFi Alliance Public Access WiFi Alliance Public Access III : –QoS (TGe provides QoS over the air) –Handoff (Provided by 802 Handoff group) –Policy (Network layer issue, but does it impact AP) –Mobility (same again) –Roaming (same again, some provided by TGi, some MAC layer ?, operator relationship, NAD Enhanced Association Support (NAD)

8. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 8 Roadmap Draft skeleton becomes a Recommended Practice (RP) –Incorporate the WLAN interworking requirements from 3GPP, 3GPP2, WiFi Alliance and others –Work towards technical solutions for the differences between the interworking models

9. doc.: IEEE 802.11-03/688r0 Submission September 2003 Stephen McCann, Siemens Roke ManorSlide 9 Straw Poll Request that an IEEE 802.11 Study Group be formed, at the Albuquerque meeting, to develop an amendment/recommended practice to extend and modify IEEE 802.11 to interwork with external IP networks, including Cellular networks.