IMT-2000 Operation System and Advanced Multimedia Services Infrastructure

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

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 OSS Coordination& Integration ( in the future ) Coordination & Shift smoothly IMT-2000 NW OSS Radio Access NW Transmission NW Core NW

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

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

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

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

8. OSS Architecture – Common Platform OSS with open and generic interface by introducing CORBA Network Management/Service Management Functional Blocks Client (OPE Terminal) Common GUI (Client) Network Management Functionn Network Management Function1 Network Management Function2 Easy functional extension and effective development by using CORBA interface CORBA Interface Event Service Naming Service Element Management Functional Blocks Element Management Functionn Element Management Function1 Element Management Function2 Easy integration of OPE and Server through CORBA interface 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 NE NE NE

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

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)