A Converged Access Network Architecture
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1 A Converged Network Architecture ScaleNet Architecture Bell Labs View Markus Bauer Bell Labs Europe Nuremberg - Germany mgbauer@lucent.com Phone:
2 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...
3 Application vs. Network Convergence IMS IPTV Web en. Resource Management Operator Core Network UMTS RM MM RM SAE/ LTE RM MM DSL RM RM : Resource Management MM : Mobility Management All Networks have system specific nodes and protocols Application Convergence
4 Application vs. Network Convergence IMS IPTV Web en. IMS IPTV Web en. Resource Management Resource Management Operator Core Network Operator Core Network UMTS RM MM RM SAE/ LTE RM MM DSL RM Domain (AD) RM MM AD AD RM MM RM MM RM : Resource Management MM : Mobility Management All Networks have system specific nodes and protocols Application Convergence Unified Domain for different access technologies Network Convergence
5 Architecture Overview Domain Domain IMS IPTV Web en. PON xdsl Local TRCF Global MM PDF TRCF Resource and Admisson Function (RACF) /Metro Domain Transport Network (IP / MPLS / CGE ) Local MM Aggregation Edge Core Domain Transport Network IP / MPLS MTE Operator Core Network
6 Unified Unified
7 QoS Architecture PON xdsl Domain Domain Local TRCF GMM IMS IPTV Resource and Admisson Function PDF TRCF Web en. LMM Aggregation Edge Core Domain Transport Network IP / MPLS MTE Operator Core Network Policy-based Bandwith/QoS control spans entire network based on individual applications Concept: TE-Engineered Tunnels (Aggregated Traffic Handling) Aggregate QoS proc. Bandwidth Monitoring (agnostic metrics) Policy Enforecement. Per-Session QoS Local TRCF responsible for one Domain RACF responsible for Core Domain and end-to-end QoS support
8 Mobility Management IMS IPTV Resource Managemnt Web en.! Session Handling IP Multimedia Subsystem (SIP based) GMM Operator Core Network! Macro Mobility GMM (Mobile IPv6) LMM AD LMM AD LMM AD! Micro Mobility LMM - Distributed in Domain (IPRM functionality)
9 IPRM Fundamental Concept (I) Network Convergence based on IPRM User Plane Packet Forwarding Dynamic configuration Plane Resource and Mobility Mgmt. on Network Layer (IPRM) User + Service Specific technology agnostic Agnostic Metric Any Link/Phy Layer (Ethernet, DSL, ATM, UMTS (Uu), WiMAX, )
10 IPRM Fundamental Concept (II) xdsl PON MTE Domain LMM Aggregation! 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
11 IPRM - Examples Aggregation Mobile () is moving network Mobile has two interfaces (e.g. UMTS, WiFi) UMTS WiFi
12 IPRM - Examples Aggregation Mobile () is moving network Mobile has two interfaces (e.g. UMTS, WiFi) User and service specific metrics (S1,S2) distributed by routing protocol UMTS WiFi S1: 5 S2:13 S1: 20 S2: 3
13 IPRM - Examples Aggregation Mobile () is moving network Mobile has two interfaces (e.g. UMTS, WiFi) S1: 5 S2:13 UMTS S1: 20 S2: 3 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
14 IPRM - Examples Aggregation User moves on and slowly leaves WiFi coverage S1: 7 S2:9 UMTS S1: 25 3 WiFi Metrics change Redistribution of metrics through routing protocol Routing algorithm calculates best route and forwarding tables within AD are set up accordingly S1, S2 technology agnostic mobility management
15 IPRM - Examples Aggregation 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)
16 Efficient Routing IPRM allows efficient routing between communicating terminals connected to... IMS IPTV Resource Managemnt Web en.! Same Unified! Same Domain GMM Operator Core Network! Different Domains AD AD AD Concepts holds for any access technology!
17 Migration Issues... Seamless service continuity for a moving legacy mobile is required! Operator Core Network Three Aspects: (a) Interworking between UMTS Network ans Domain (b) Interworking between legacy mobile and UMTS Network (a) Domain (c) Mapping of legacy mobile into IPRM architecture (c) (b)
18 Summary and Outlook Summary:! 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 ( plane handling within Domain)! Efficient Transport of user traffic (User plane handling within Domain)! ScaleNet Demonstrator
19 Backup Slides
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