1. 1 Presentation_ID © 1999, Cisco Systems, Inc. Cisco’s Position on All-IP Wireless Networks Presentation_ID

2. 2 © 1999, Cisco Systems, Inc. Gene Choy Feb 12, 1999 AII IP: Guiding Principles and Architectural Goals Guiding principles for IP-based wireless networks Core and Access Networks aligned with Internet model Align for future multi-service requirements IP peer to peer model provides flexibility and simplicity in network design IP architectural goals Dynamic resource allocation, distributed architecture, and scalability Air interface independent Supports 2G & 3G networks Deliver consistent services across wireless and wireline networks

3. 3 Presentation_ID © 1999, Cisco Systems, Inc. Gene Choy Feb 12, 1999 Circuit/Signaling Gateway Operator Benefits: Rapid Service Deployment Rapid Service Deployment Multimedia Services Multimedia Services Realizing the Full Power of 3G Realizing the Full Power of 3G Circuit Packet Traffic True Peer-to-Peer: A Close Look 2.5G / 3G2G IN Services Services Manager Circuit/ Signaling Gateway Feature Server(s) Network Feature Servers RRC 3G Circuit Network IP Network Packet Network (Internet) Packet Gateway IP RAN Radio Access Control Circuit SwitchingData VPN Packet Voice Unified Communications Multimedia

4. 4 Presentation_ID © 1999, Cisco Systems, Inc. Gene Choy Feb 12, 1999 How to Do the Work: All IP Architecture Leverage IP technology investments - Start with wireline IP data and VoIP architecture » Why start from scratch - Utilize existing IP protocols and services » Use existing work from IETF - Extend them to support “mobile wireless” access Focus on “mobile wireless” part - Mobility management - Radio resource management - QoS management for mobile services

5. 5 Presentation_ID © 1999, Cisco Systems, Inc. Gene Choy Feb 12, 1999 Work with Existing IETF Groups Transport area QoS: diffserv, intserv, rsvp, issll, ippm VoIP: avt, mmusic, iptel, sigtran, sip, pint, megaco, hc Routing area mobileip, manet, mpls Security area ipsec Operation & Management area aaa, radius, rap, snmp, tewg

6. 6 Presentation_ID © 1999, Cisco Systems, Inc. Gene Choy Feb 12, 1999 How to Do the Work: Organization (Phase I) A single group focus on overall architecture – Define the peer-to-peer IP network model – Support inter-operating with legacy networks – Who: TSG-S, TSG-A, TSG-P, or this All-IP Ad Hoc ? – Time period: 3 months ? – How do we get a head start ? Leverage contributions from Mobile Wireless Internet Forum (MWIF)

7. 7 Presentation_ID © 1999, Cisco Systems, Inc. Gene Choy Feb 12, 1999 How to Do the Work: Organization (Phase II) Distribution of functional elements to TSG-groups Radio resource management Mobility management Support of legacy signaling with sigtran, megaco, etc. Leverage expertise of individual groups