ScaleNet Converged Network of the Future

Transcription

1 ScaleNet Converged Network of the Future ComNets Workshop 2008, Dr. Bangnan Xu, T-Systems Nov

2 What is the deciding factors for the success of networking technologies? Simple Telecom 2.0 WLAN vs. W-CHAMB IP vs. ATM Cheap Open Nov

3 What is the key features of the future networks? Broadband Telecom NG(M)N2.0 Mobility FMC Nov

4 ScaleNet. BMBF funded research project. DTAG ScaleNet team ScaleNet partners DT- Labs T-Systems Fixed access network technologies Mobile & Wireless solutions Time plan M1 M2 M3 M4 M5 M6 M7 Q Q4 Q1 Q2 Q3 Q Q1 Q2 Q3 Q Q1 Q Q3 Nov

5 Agenda. Introduction Converged NG(M)N enabled network architecture Motivations Concepts for a converged network of the future Common infrastructure for NGN and NGMN Unified service control platform Overarching network functions The ScaleNet integrated demonstrator Prototypical implementation Conclusions Nov

6 ScaleNet architecture -Motivations Converged network and service Application layer Optics DSL 3G and beyond BWMA Mesh Access ONU DSL CPE with WiFi/Bluetooth BS Mesh BS NASS & RACS Converged Access Aggregation Network IMS service CSCF Edge Router AAA HSS IPTV Web Services Control layer IMS/TISPAN Mobility IP Backbone QoS UAN Universal Access Node Function Motivations: CAPEX/OPEX reduction. Easy & quick introduction of new services. Optimised quality of experience Seamless services Self-configuration Dynamic QoS Mesh SS ABC Access Border Controller Nov

7 Next generation mobile networks. Architecture of current and future mobile networks. UMTS Iub UE NodeB RNC SGSN GGSN Decreasing the number of nodes NGMN S1 UE enodeb agw Main targets and requirements Reduced cost per bit (close to xdsl costs), increased service provisioning Flexibility of use of existing and new frequency bands, simplified architecture, open interfaces Peak data rate: 100 Mbit/s (downlink) and 50 Mbit/s (uplink) Channel bandwidth variability: MHz Roundtrip latency time: < 10 ms (core), < 10 ms (RAN), < 30 ms e2e Nov

8 Common infrastructure for NGN and NGMN ScaleNet vision Fixed & Mobile Converged Access Network UAN Fixed Access Network (NGN) GPON OLT ABC NGN: ER IP/MPLS Transport Core S1 S1 UE NGMN: enodeb Mobile Access Network (NGMN) agw agw functionality is integrated in Access border controller (ABC) and edge router (ER) Nov

9 Converged service control platform. From stovepipe to an unified production. Important Challenges to be solved address overarching QoS and AAA. Nov

10 Converged service control platform IMS as the uniform service control platform User profile Optics IMS NASS ONU RACF DSL App. Services Enablers IP DSL CPE with WiFi/Bluetooth Functions for converged IP Multimedia Converged - services control and media delivery Access 3G and beyond Aggregation Standardized interfaces for easy and fast service creation IP Backbone and delivery Network Reusable service enablers, capabilities and BWMA Edge control mechanisms for BS Router converged services Enhancements to support IMS based IPTV services Mesh Access Mesh BS Support of content adaptation, distribution and multi-path media delivery Mesh SS IMS service Application layer IPTV QoS AAA Mobility Web Services Control layer IMS/TISPAN UANF/I Universal Access node Nov

11 Overarching network functions Service aware networking Best service quality in case of sufficient network resources. Disturbed service quality in case of insufficient network resources. Service quality is adapted to the available network resources. RGW NASS DARMF UAN 2,5Gig e4 Rx OLT CAAN 10GbE A-RACF ABC ER Rq PDF IMS Services Mobility Services Management Services Handoff VLR Services S-CSCF HSS/ I-CSCF IMS HLR P-CSCF IMS Gq Core Network AAA QoS 3 Bottleneck requires dynamic resource and admission control Dynamic resource control for more efficiency ABC = Access Border Controller ER = Edge Router UAN = Universal Access Node DARMF=Dynamic Access Resource Management Function PDF=Policy Decision Function Nov

12 Overarching network functions DARMF An example 1 CAAN DARMF UAN 2 Base Station IMS Core A-RACF HSS I-CSCF IPTV Streaming server P-CSCF Wireless Station S-CSCF Attenuator 1. DARMF evaluates current channel situation of wireless connection. 2. DARMF informs A-RACF about any change of the resource situation. 3. Feedback to application function about changing QoS situation. 4. Adaptation of session parameters. 5. Session continuation with adapted session parameters disturbed session Adapted session Original session Nov

13 OFDM MODEM The ScaleNet integrated demonstrator Prototype of Network of the Future AS IMS HSS S-CSCF P-CSCF I-CSCF SPDF ABC CAAN DTAG NGN enabled converged aggregation access network (CAAN) EIBONE MM/GMI/AAAC NSN/DTAG AS/IMS ALU/DTAG/Ericsson OverSim/P2PSIP Uni Karlsruhe BS New Radio HAM HSDPA OFDM 3G/4G Radio BSR Mesh WiMAX GPON MIMO-OFDMA NSN HAM ALU BSR Mesh/WiMAX/GPON DTAG ALU: Alcatel Lucent, NSN: Nokia Siemens Networks, DTAG: Deutsche Telekom Nov

14 DTAG ScaleNet demonstrator setup Services Application Server Web Server HSS IMS Core S-CSCF I-CSCF P-CSCF Edge Router Converged Access Aggregation Network GPON OLT GPON ONT Mesh WiFi Ethernet Partner access technologies NSN WiMAX MIMO ALU HSDPA ALU HSDPA/ OFDM Nov

15 DTAG Validation in a real environment Nov

16 Conclusions Concepts for a converged network of the future Common infrastructure for NGN and NGMN ABC Access border controller with agw (access gateway) functions UAN Unified access node to integrate existing and emerging heterogeneous access technologies Unified service control platform Unified service control platform for easy and quick service introduction Dynamic interaction between service and network service aware networking Overarching network functions Dynamic resource management with optimized quality of experience Overarching network functions for Mobility, QoS and AAAS Nov

17 Thank you for your attention! Any questions? Nov