1. 1 IMT-2000 Operation System and Advanced Multimedia Services Infrastructure Kouzou Sakae Operation Development Department NTT DoCoMo, Inc. E-mail: sakae@nttdocomo.co.jp

2. 2 Mobile Communication Environment 1G: Analog 2G: Digital 3G: W-CDMA Voice & data (e.g. i-mode) Voice Multimedia and high volume data communication Voice, data, images, videos etc.

3. 3 Requirements for Operation Support System (OSS) easy recognition of the network status and its characteristics sufficient network control capability for improving service quality configuration management by data flow through between design system and OSS new common platform for large-scale network PDC NW IMT-2000 NW Core NW Radio Access NW Transmission NW OSS Coordination & Shift smoothly Coordination & Integration ( in the future )

4. 4 RAN Quality monitoring (Impacted Area) CN Quality monitoring (End-to-end Call Loss from Calling LS to Called LS) ＬＳ Total Network Status Monitoring RAN to CN ＬＳ Osaka Sapporo Section Call loss/Connectivity CN monitoring TS LS RAN monitoring Congestion Call restriction Osaka Sapporo failure monitoring based on Traffic monitoring based on NE performance and failure BS Transmission Switch RNC Network Fault monitoring: Mapping from individual fault and performance information to the network configuration Failure Network Monitoring Concept Osaka Sapporo

5. 5 Network Control Concept TS LS Congestion Osaka Network Control Server Call localized due to disaster, event etc. [Auto Congestion Detection] Based on congestion info, recognize congestion and NE to be restricted. Restriction Control Sapporo LS Restriction [Auto Restriction Control] Based on traffic data, calculate available call volume and execute optimized restriction allotment. Congestion detected Critical Traffic Loss Rate Major Minor High Restriction Allotment Medium Low Sapporo Osaka TS

6. 6 Overview of Network Control & Monitoring Traffic Alert Major Alert, Network Status Network Operation Flow NE Operation Flow Notes Monitor of Network Quality Identify the cause of network fault (cause of Call Loss, Low Usage, Congestion) Recovery of QoS → Network Control (Bypass, Restriction) End-to-end Call Loss Rate Section Call Loss Rate, Actual Usage Rate NE Congestion NE major alert NE status Verify the action of NE Monitor operator Recovery action for NE failure Monitor of NE failure Network Monitor Network Analysis Action OPE Network Monitor NE Analysis NE Monitor Network Individual NE BS RNC SW NMSCP SW BS SW Identify the cause of NE failure Scope of Network ControlScope of Facility Maintenance OPE Backyard OPE Network Monitor OPE Backyard OPE Backyard XC Transmission

7. 7 Overview of Network Configuration management Service Management Network Management Element Management Network Element Service Front Terminal RAN Planning NE File Station Data Management Path Management OSS Configuration Management QoS Monitor Network Monitor Network Control Major Alert Aggregation Call Processing Alert Aggregation Traffic DWH RAN NEM CN NEM Transmission NEM SCP NEM NEM: NE Management Design TerminalsQuality Analysis Terminal BS RNC SW SCP Transmission SW BS RNC OPE Network Monitor & Control OPE Backyard CN Planning Process Management RAN Design CN Design Transmission Design Data Flow Through

8. 8 OSS with open and generic interface by introducing CORBA Network Management Function 1 Network Management Function 1 Network Management Function 2 Network Management Function 2 Network Management Function n Network Management Function n Element Management Function 1 Element Management Function 1 Element Management Function 2 Element Management Function 2 Element Management Function n Element Management Function n NE Common GUI (Client) Common GUI (Client) CORBA Interface Network Management/Service Management Functional Blocks Element Management Functional Blocks Naming Service Client (OPE Terminal) Easy functional extension and effective development by using CORBA interface Event Service ＣＯＲＢＡインタフェースにより ＯＰＥ ～サーバ間の連携が 容易に実現 Easy integration of OPE and Server through CORBA interface OSS Architecture – Common Platform

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10. 10 Requirements for Mobile Multimedia Services Rapid supply of various multimedia services to customers Broadband data communication Internet interactive solutions to xSP Open and unified interface between carrier and xSP networks Security management

11. 11 Mobile Multimedia Service Concept on 3G Business Partners Internet Interactive Functionalities User Controlled Service Mobile User Mobile Multimedia Service Deployment Infrastructure RAN Advanced IN SMS SCP HLR CN Internet xSP SO system Billing system Service Management Gateway Unified & Open Interface Security mgmt. End-to-End Services

12. 12 Conclusion PDC & IMT-2000 OSSs –Monitor, control and configure RAN, CN and transmission network by data flow through –Coordinate with each other –Integration of PDC and IMT-2000 OSSs (FFS) Advanced Infrastructure for Mobile Multi-media Services on 3G –Provide common internet interactive platform –Provide unified and open interface to xSP –Secure user authentication –Provide user controlled services, location services, flexible accounting functions, integrity with standardization (FFS)