Transcript IP (and VoIP)

4G Wireless: Future of VoIP
Michael A. Ramalho (moderator)
Mauricio Arango (Sun Microsystems)
Dana Blair (Cisco Systems)
Phil Neumiller (3Com)
Spring VON 2001
Presentation_ID
Session 32 – 4G Wireless: Future of VoIP 1
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
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
2
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
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
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Mobile IPv6 (data, non-real-time)
Mobility
Server
Wireless
IPv6
DHCP
GPRS Backbone
Network
IP Network
BTS
Same Care of
Address
BTS
Mobility
Server
Mobile Node
Spring VON 2001
BTS
Mobile IPv6
Binding Corresponding
Update
Node
Internet
Wireless DHCP
GPRS Backbone
IPv6
IP Network
Network
Session 32 – 4G Wireless: Future of VoIP
IPv6
Internet
Home Agent
© 2001, Cisco Systems, Inc.
4
Mobile IPv6 (data, non-real-time)
Mobility
Server
Wireless
IPv6
DHCP
GPRS Backbone
Network
IP Network
BTS
Same Care of
Address
BTS
Spring VON 2001
BTS
Corresponding
Node
Micro-Mobility
Managed
Locally
Mobility
Server
Mobile Node
No Mobile IP
Binding
Update
Internet
Wireless DHCP
GPRS Backbone
IPv6
IP Network
Network
Session 32 – 4G Wireless: Future of VoIP
IPv6
Internet
Home Agent
© 2001, Cisco Systems, Inc.
5
Mobile IPv6 (data, non-real-time)
Mobility
Server
Wireless
IPv6
DHCP
GPRS Backbone
Network
IP Network
BTS
Corresponding
Node
Same Care of
Address
BTS
Internet
New Care of
Address
Mobility
Server
Mobile Node
Spring VON 2001
BTS
Wireless DHCP
GPRS Backbone
IPv6
IP Network
Network
Session 32 – 4G Wireless: Future of VoIP
IPv6
Internet
Home Agent
© 2001, Cisco Systems, Inc.
6
Mobile IPv6 (data, non-real-time)
Mobility
Server
Wireless
IPv6
DHCP
GPRS Backbone
Network
IP Network
BTS
Corresponding
Node
Same Care of
Address
New Mobile IPv6
Binding Update
Needed!
BTS
New Care of
Address
Mobility
Server
Mobile Node
Spring VON 2001
BTS
Wireless DHCP
GPRS Backbone
IPv6
IP Network
Network
Session 32 – 4G Wireless: Future of VoIP
Internet
IPv6
Internet
Home Agent
© 2001, Cisco Systems, Inc.
7
Real-Time MobileIPv6 Handoff
Mobility
Server
Wireless
IPv6
DHCP
GPRS Backbone
Network
IP Network
Generalized
AAA/HSS
BTS
Corresponding
Node
Same Care of
Address
QoS/COPS
BTS
New Care of
Address
Mobility
Server
Mobile Node
Security
•Forwarding Tunnels
(in-flight packets)
•Context Transfer
Wireless
DHCP
IPv6
GPRS Backbone
IP Network
Network
IPv6
Internet
Internet
Generalized
AAA/HSS Home Agent
BTS
QoS/COPS
Security
Generalized
AAA/HSS
Real-Time Mobile IPv6 supports:
•Make before break or break before make
•Network initiated or mobile initiated handoff triggers
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
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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 cost
access technologies (802.11/unlicensed spectrum)
• Business models that exploit 4G technologies yet to be
derived (exploit statistical characteristics of mobility)
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
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4G Wireless Status
• 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 ……….
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
10
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
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
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 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
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
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
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
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
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
14
Questions?
Michael A. Ramalho, +1.732.449.5762
[email protected]
[email protected]
Spring VON 2001
Session 32 – 4G Wireless: Future of VoIP
© 2001, Cisco Systems, Inc.
15