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A Converged Access Network Architecture
ScaleNet Architecture – Bell Labs View
Markus BauerBell Labs EuropeNuremberg - GermanyE-mail: [email protected]: +49 911 526 3743
Lucent Technologies – ProprietaryUse pursuant to company instruction
Outline
! Architecture Overview! Unified Resource and Mobility Management
– QoS Architecture– Mobility Management– IP-based Resource Management (IPRM) – Efficient Routing
! Migration and Interworking! Summary and Outlook...
Lucent Technologies – ProprietaryUse pursuant to company instruction
Application vs. Network Convergence
Operator Core Network
ResourceManagement
IMSService And
ControlApplications
IPTVService And
ControlApplications
Web en.Service And
ControlApplications
UMTSSAE/LTE
DSLRM
All Networks have system specific nodes and protocols
RM MM RM MM RM
Application Convergence
RM : Resource ManagementMM : Mobility Management
Lucent Technologies – ProprietaryUse pursuant to company instruction
Application vs. Network Convergence
Operator Core Network
ResourceManagement
IMSService And
ControlApplications
IPTVService And
ControlApplications
Web en.Service And
ControlApplications
UMTSSAE/LTE
DSLRM
All Networks have system specific nodes and protocols
Operator Core Network
Resource Management
IMSService And
ControlApplications
IPTVService And
ControlApplications
Web en.Service And
ControlApplications
Access Domain (AD)
Network Convergence
AD AD
RM MM RM MM RMRM MM
RM MM RM MM
Unified Access Domain for different access technologies
Application Convergence
RM : Resource ManagementMM : Mobility Management
Lucent Technologies – ProprietaryUse pursuant to company instruction
Access Domain
Access Domain
Architecture Overview
“Operator Core Network“
BBBBAccessAccess Global
MM
BBBBAccessAccess
Access/Metro Domain Transport Network(IP / MPLS / CGE )
UE
UE
UE
UE
Aggregation Router
xDSL
PON UR
UR
UR
UR
UR
UR
URMTE
Local TRCF
Resource and Admisson Control
Function(RACF)
TRCF
Core Domain Transport Network
IP / MPLS
Edge Router
LocalMM
IMSService And
ControlApplications
IPTVService And
ControlApplications
Web en.Service And
ControlApplications
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Unified Router
Unified Router
Lucent Technologies – ProprietaryUse pursuant to company instruction
QoS ArchitectureAccess Domain
Access Domain
“Operator Core Network“
BBBBAccessAccess GMM
BBBBAccessAccess
UE
UE
UE
UE
Aggregation Router
xDSL
PON
MTE
Core Domain Transport Network
IP / MPLS
Edge Router
• Aggregate QoS proc.• Bandwidth Monitoring (agnostic metrics)• Policy Enforecement.• Per-Session QoS
UR
UR
UR
UR
UR
UR
UR
Policy-based Bandwith/QoS control spans entire network based on individual applications
Concept: TE-Engineered Tunnels (Aggregated Traffic Handling)
Local TRCF responsible for one Access DomainRACF responsible for Core Domain and end-to-end QoS support
LMM
Resource and Admisson Control Function
TRCFPDF
IMSService And
ControlApplications
IPTVService And
ControlApplications
Web en.Service And
ControlApplications
Local TRCF
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Mobility Management! Session Handling
IP Multimedia Subsystem(SIP based)
! Macro MobilityGMM (Mobile IPv6)
! Micro MobilityLMM - Distributed in Access Domain(IPRM functionality)
Operator Core Network
Resource Managemnt
IMSService And
ControlApplications
IPTVService And
ControlApplications
Web en.Service And
ControlApplications
AD AD
GMM
AD
UR UR
UR
URUR
LMMLMMLMM
Lucent Technologies – ProprietaryUse pursuant to company instruction
IPRM – Fundamental Concept (I)
Any Link/Phy Layer(Ethernet, DSL, ATM, UMTS (Uu), WiMAX, …)
Resource and Mobility Mgmt.
on Network Layer(IPRM)
PacketForwarding
Access Agnostic Metric
Dyn
amic
co
nfig
urat
ion
Access technology agnostic
Network Convergence based on IPRM
User Plane Control Plane
User + Service Specific
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IPRM – Fundamental Concept (II)! Terminal becomes moving
network! TE-Engineered tunnel becomes
one hop! Wireless “access” link becomes
one hop! Wireline “access” link
(xDSL/PON/ETH) becomes one hop
! Service / User specific metrics per hop
! Routing protocols used for metrics distribution
! TE algorithms exploit metrics for forwarding decisions
! Full integration of multi-interface terminals
! multi-path routing
Access Domain
BBBBAccessAccess
BBBBAccessAccess
UE
UE
UE
UE
Aggregation Router
xDSL
PON
MTE
UR
UR
UR
UR
UR
UR
UR
LMM
Lucent Technologies – ProprietaryUse pursuant to company instruction
IPRM - Examples
Mobile (MN-M1) is moving network
Mobile has two interfaces (e.g. UMTS, WiFi)
Aggregation Router
BBBBAccessAccess
UR
UR
UR
UMTSWiFi
MN-M1
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IPRM - Examples
Mobile (MN-M1) is moving network
Mobile has two interfaces (e.g. UMTS, WiFi)
User and service specific metrics (S1,S2) distributed by routing protocol
Aggregation Router
BBBBAccessAccess
UR
UR
UR
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 5S2:13
MN-M1S1: 20S2: 3
UMTSWiFi
MN-M1
Lucent Technologies – ProprietaryUse pursuant to company instruction
IPRM - Examples
Mobile (MN-M1) is moving network
Mobile has two interfaces (e.g. UMTS, WiFi)
User and service specific metrics (S1,S2) distributed by routing protocol
Routing algorithm calculates “best“ route and forwarding tables within AD are set up accordingly S1, S2
Aggregation Router
BBBBAccessAccess
UR
UR
UR
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 5S2:13
MN-M1S1: 20S2: 3
UMTSWiFi
MN-M1
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IPRM - Examples
User moves on and slowly leaves WiFi coverage
Metrics changeRedistribution of metrics
through routing protocol
Routing algorithm calculates “best“ route and forwarding tables within AD are set up accordinglyS1, S2
Access technology agnostic mobilitymanagement
Aggregation Router
BBBBAccessAccess
UR
UR
UR
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 1S2: 1
MN-M1S1: 7S2:9
MN-M1S1: 25S2: 13
UMTSWiFi
MN-M1
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IPRM - Examples
IPRM is open for more concepts like
! „load sharing“ via different mobile interfaces
! (Network) MIMO concepts are feasible
! Efficient personal mobility
! Smooth integration of multi-hop and ad-hoc networks
! New deployment scenarios (e.g. UMTS at home)
Aggregation Router
BBBBAccessAccess
UR
UR
UR
MN-M1
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Efficient Routing
IPRM allows efficient routing between communicating terminals connected to ...
! Same Unified Router! Same Access Domain! Different Access
Domains
Concepts holds for any access technology!
Operator Core Network
Resource Managemnt
IMSService And
ControlApplications
IPTVService And
ControlApplications
Web en.Service And
ControlApplications
AD AD
GMM
AD
UR UR
UR
URUR
Lucent Technologies – ProprietaryUse pursuant to company instruction
Migration Issues...
Seamless service continuity for a moving “legacy“ mobile is required!
Three Aspects:(a) Interworking between UMTS
Network ans Access Domain(b) Interworking between
“legacy“ mobile and UR(c) Mapping of “legacy“ mobile
into IPRM architecture
Operator Core Network
UMTS NetworkAccess Domain
(a)
UR
(b)
(c)
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Summary and OutlookSummary:! Application vs. network convergence! Architecture build upon the ideas of IPRM
– Unified resource and mobility management– Efficient routing
! Migration path essential part of concept
Lucent focus in ScaleNet project:! Design of efficient routing protocols and algorithms to support
IPRM (Control plane handling within Access Domain)! Efficient Transport of user traffic (User plane handling within
Access Domain)! ScaleNet Demonstrator
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Backup Slides
