1. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 1 Wireless Interworking Stephen McCann & Max Riegel, Siemens stephen.mccann@roke.co.uk maximilian.riegel@siemens.com

2. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 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 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 3 Existing 802.11 system

4. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 4 Is interworking inside the scope of 802.11 Yes, it defines the functions of a public access Wireless Ethernet interface. Yes, similar approach to TGf : signalling to enable communications between access points.

5. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 5 Internet/Web Applications Generic Internet architecture Internet link phy ip tcp http www link phy ip link phy ip link phy ip link phy ip 802.2 802.11 link phy ip 802.2 802.11 ip tcp http www 802.2 802.3 ip 802.2 802.3 AAA Server WLAN Access Web Server

6. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 6 Existing 802.11stack

7. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 7 TGf also re-uses IETF protocols

8. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 8 Interworking : What ? Seems to be a lot of interest here. What can WNG do ? –Look at current 802.11 functions/interfaces –What additions are required to meet W-ISP & Cellular requirements (3GPP and 3GPP2) –Come up with a model which matches the external networks of all these guys.

9. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 9 What do you mean ? 802.11 requires some work in the access network to define external interfaces TGe, TGf, TGi and TGk have started to do this already with functions. Need to look at Accounting as mentioned yesterday Let‘s start by looking at issues in the 3GPP requirements document. Must also address W-ISP and 3GPP2

10. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 10 802.11 existing bits

11. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 11 Generic Architecture

12. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 12 Roadmap Create TG to produce Recommended Practice (RP) @Singapore : review PAR & 5Criteria. Work towards a RP skeleton document incorporating the requirements of 3GPP SA2. @San Francisco : Present documents to WNG and WG Plenary.

13. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 13 Liaison from 3GPP SA2 Black Box Requirements –Network Discovery (SSID) –RADIUS/Diameter –Uniform service levels for hotspots –For more info : 11-03-194r0-WNG-3GPP- Implicit-Reqts-WLAN-BlackBox.doc

14. doc.: IEEE 802.11-03/162r0 Submission March 2003 Stephen McCann & Max Riegel, SiemensSlide 14 Response to 3GPP Liaison What should the WNG actions be. Propose liaison response : –Immediate full reply –2 stage reply. Liaison indicating direction followed by a detailed response later. Look at 11-03-226r0 (draft liaison)