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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). 4G Wireless: Future of VoIP. Session Outline. Michael Ramalho (Cisco Systems): Session introduction and facilitator 4G Wireless Implies:

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4G Wireless: Future of VoIP

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  1. 4G Wireless: Future of VoIP Michael A. Ramalho (moderator)Mauricio Arango (Sun Microsystems)Dana Blair (Cisco Systems)Phil Neumiller (3Com)

  2. 4G Wireless: Future of VoIP Session Outline • Michael Ramalho (Cisco Systems): • Session introduction and facilitator • 4G Wireless Implies: • 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

  3. 4G Wireless: Future of VoIP Seamless Handoff Across Heterogeneous Networks • 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

  4. Mobile IPv6 (data, non-real-time) GPRS Backbone IP Network GPRS Backbone IP Network Corresponding Node DHCP Mobility Server DHCP Mobility Server Wireless IPv6 Network Mobile IPv6BindingUpdate BTS Same Care of Address BTS Internet IPv6 Internet Wireless IPv6 Network Home Agent BTS Mobile Node

  5. Mobile IPv6 (data, non-real-time) GPRS Backbone IP Network GPRS Backbone IP Network Corresponding Node DHCP Mobility Server DHCP Mobility Server Wireless IPv6 Network No Mobile IPBinding Update BTS Same Care of Address Micro-MobilityManaged Locally BTS Internet IPv6 Internet Wireless IPv6 Network Home Agent BTS Mobile Node

  6. Mobile IPv6 (data, non-real-time) GPRS Backbone IP Network GPRS Backbone IP Network Mobility Server Mobility Server DHCP Corresponding Node DHCP Wireless IPv6 Network BTS Same Care of Address BTS Internet New Care of Address IPv6 Internet Wireless IPv6 Network Home Agent BTS Mobile Node

  7. Mobile IPv6 (data, non-real-time) GPRS Backbone IP Network GPRS Backbone IP Network Mobility Server DHCP Mobility Server DHCP Corresponding Node Wireless IPv6 Network BTS Same Care of Address New Mobile IPv6Binding Update Needed! BTS Internet New Care of Address IPv6 Internet Wireless IPv6 Network Home Agent BTS Mobile Node

  8. Real-Time MobileIPv6 Handoff GPRS Backbone IP Network GPRS Backbone IP Network • Forwarding Tunnels (in-flight packets) • Context Transfer Corresponding Node DHCP Mobility Server GeneralizedAAA/HSS Mobility Server DHCP QoS/COPS Security Security QoS/COPS GeneralizedAAA/HSS GeneralizedAAA/HSS Wireless IPv6 Network BTS Same Care of Address IPv6 Internet BTS Internet New Care of Address Wireless IPv6 Network Home Agent BTS Mobile Node • Real-Time Mobile IPv6 supports: • Make before break or break before make • Network initiated or mobile initiated handoff triggers

  9. 4G VoIP Technology - Opportunities/Threats • 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 costaccess technologies (802.11/unlicensed spectrum) • Business models that exploit 4G technologies yet to be derived (exploit statistical characteristics of mobility)

  10. 4G Wireless Status • Work begun in IETF in Seamoby andMobile 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 incross-technology handoff cases. • More opinionated people follow ……….

  11. 4G Wireless: Future of VoIP Session Outline • Michael Ramalho (Cisco Systems): • Session Introduction and Facilitator • 4G Wireless Implies: • 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

  12. 4G Wireless: Future of VoIP Session Outline • Michael Ramalho (Cisco Systems): • Session introduction and facilitator • 4G Wireless Implies: • 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

  13. 4G Wireless: Future of VoIP Session Outline • Michael Ramalho (Cisco Systems): • Session introduction and facilitator • 4G Wireless Implies: • 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

  14. 4G Wireless: Future of VoIP Session Outline • Michael Ramalho (Cisco Systems): • Session introduction and facilitator • 4G Wireless Implies: • 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

  15. Questions? Michael A. Ramalho, +1.732.449.5762mramalho@cisco.commar42@cornell.edu

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