1. 1Presentation_ID Spring VON 2001Session 32 – 4G Wireless: Future of VoIP 4G Wireless: Future of VoIP Michael A. Ramalho (moderator) Mauricio Arango (Sun Microsystems) Dana Blair (Cisco Systems) Phil Neumiller (3Com)

2. 2 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP Michael Ramalho (Cisco Systems): – Session introduction and facilitator – 4G Wireless Implies: and VoIP IP (and VoIP) to the mobile endpoint Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies. Mauricio Arango (Sun Microsystems): – Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”): – Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities Dana Blair (Cisco Systems): – 4G: “The end of the Intelligent (services) Network” Question and Answer Panel 4G Wireless: Future of VoIP Session Outline

3. 3 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP PRESENT – Seamless handoffs can be designed for homogeneous networks – usually with limited participation of the mobile node (MN) in the decision. FUTURE – For IP to mobile node (MN) applications where there is a multiplicity of potential (wireless) access technologies: –What functionality is required in the MN and Access Router (AR) to facilitate seamless transfer (network or MN initiated)? –What QoS, AAA, Security infrastructure changes are needed? CHALLENGE – How do we help facilitate the future vision during transition from 3G and legacy cellular? ASSUMPTIONS: – Base IPv6 spec has fundamental mobile IP functionality – Multiplicity of (wireless) access technologies exist in a particular geography 4G Wireless: Future of VoIP Seamless Handoff Across Heterogeneous Networks

4. 4 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP GPRS Backbone IP Network Wireless IPv6 Network Mobile IPv6 (data, non-real-time) Internet GPRS Backbone IP Network Mobile Node DHCP Home Agent DHCP Wireless IPv6 Network IPv6 Internet MobilityServer MobilityServer BTS CorrespondingNode Mobile IPv6 Binding Update Same Care of Address

5. 5 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP GPRS Backbone IP Network Wireless IPv6 Network Mobile IPv6 (data, non-real-time) Internet GPRS Backbone IP Network Mobile Node DHCP Home Agent DHCP Same Care of Address Wireless IPv6 Network IPv6 Internet MobilityServer MobilityServer BTS CorrespondingNode No Mobile IP Binding Update Micro-Mobility Managed Locally

6. 6 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP GPRS Backbone IP Network Wireless IPv6 Network Mobile IPv6 (data, non-real-time) Internet GPRS Backbone IP Network Mobile Node DHCP Home Agent DHCP New Care of Address Same Care of Address Wireless IPv6 Network IPv6 Internet MobilityServer MobilityServer BTS CorrespondingNode

7. 7 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP GPRS Backbone IP Network Wireless IPv6 Network Mobile IPv6 (data, non-real-time) Internet GPRS Backbone IP Network Mobile Node DHCP Home Agent DHCP New Care of Address Same Care of Address Wireless IPv6 Network IPv6 Internet MobilityServer MobilityServer BTS CorrespondingNode New Mobile IPv6 Binding Update Needed!

8. 8 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP GPRS Backbone IP Network Wireless IPv6 Network Internet GPRS Backbone IP Network CorrespondingNode Mobile Node DHCP Home Agent DHCP New Care of Address Same Care of Address Wireless IPv6 Network IPv6 Internet MobilityServer MobilityServer BTS Real-Time MobileIPv6 Handoff Forwarding Tunnels (in-flight packets) Context Transfer QoS/COPS QoS/COPS Security Security Generalized AAA/HSS Real-Time Mobile IPv6 supports: Make before break or break before make Network initiated or mobile initiated handoff triggers

9. 9 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP A multiplicity of wireless access technologies exist in a particular geography Handoffs of real-time IP streams are independent of access technology! Corollary: Service provider is not “locked-in” to a particular access technology! Off-load of expensive spectrum with lower cost access technologies (802.11/unlicensed spectrum) Business models that exploit 4G technologies yet to be derived (exploit statistical characteristics of mobility) 4G VoIP Technology - Opportunities/Threats

10. 10 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP Work begun in IETF in Seamoby and Mobile IP Working Groups. – draft-blair-rt-mobileipv6-seamoby-00.txt Many companies are working on architectures and prototype hardware to demonstrate feasibility and to determine seamlessness performance in cross-technology handoff cases. More opinionated people follow ………. 4G Wireless Status

11. 11 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP Michael Ramalho (Cisco Systems): – Session Introduction and Facilitator – 4G Wireless Implies: and VoIP IP (and VoIP) to the mobile endpoint Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies. Mauricio Arango (Sun Microsystems): – Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G Phil Neumiller (3Com): – Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities Dana Blair (Cisco Systems): – 4G: “The end of the Intelligent (services) Network” Question and Answer Panel 4G Wireless: Future of VoIP Session Outline

12. 12 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP Michael Ramalho (Cisco Systems): – Session introduction and facilitator – 4G Wireless Implies: and VoIP IP (and VoIP) to the mobile endpoint Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies. Mauricio Arango (Sun Microsystems): – Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”): – Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities Dana Blair (Cisco Systems): – 4G: “The end of the Intelligent (services) Network” Question and Answer Panel 4G Wireless: Future of VoIP Session Outline

13. 13 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP Michael Ramalho (Cisco Systems): – Session introduction and facilitator – 4G Wireless Implies: and VoIP IP (and VoIP) to the mobile endpoint Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies. Mauricio Arango (Sun Microsystems): – Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”): – Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities Dana Blair (Cisco Systems): – 4G: “The end of the Intelligent (services) Network” Question and Answer Panel 4G Wireless: Future of VoIP Session Outline

14. 14 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP Michael Ramalho (Cisco Systems): – Session introduction and facilitator – 4G Wireless Implies: and VoIP IP (and VoIP) to the mobile endpoint Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies. Mauricio Arango (Sun Microsystems): – Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”): – Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities Dana Blair (Cisco Systems): – 4G: “The end of the Intelligent (services) Network” Question and Answer Panel 4G Wireless: Future of VoIP Session Outline

15. 15 Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP Questions? Michael A. Ramalho, +1.732.449.5762 mramalho@cisco.com mar42@cornell.edu