Wcdma Core Network Introduction
- 1. 3G Non-technical Presentation WCDMA Core Network
- 2. Agenda Network Overview Market Situation Ericsson Portfolio Network Evolution Summary 2
- 3. Network Overview 3
- 4. Network Overview-Cont’ GMSC GMSC Core Network 4
- 5. Network Overview-Cont’ Circuit Switch GMSC GMSC Packet Switch 5
- 7. Circuit Switch Overview-Cont’ what is MSC? Mobile Switching Center (MSC) Combines of MSC-S & M-MGw Responsible for: – Routing traffic and – Signaling information in the network Some functions: – Call control management (Registration,..) – Mobility management (Location update, handover, call routing,…) 7
- 8. Circuit Switch Overview-Cont’ What is GMSC? Gateway MSC (GMSC) Interface with fixed network (PSTN/ISDN) Retrieve information form HLR for location of sub. Route all calls to appropriate MSC/VLR Also perform charging for mobile terminate call 8
- 9. Circuit Switch Overview-Cont’ What is HLR/AuC? Home Location Register (HLR) Centralized database of subscriber – Administrative information – Subscriber registration – Any supplementary services Authentication Center (AuC) – Ciphering – User authentication 9
- 10. Circuit Switch Overview-Cont’ What is VLR? Visitor Location Register (VLR) Database for both subscriber information and Information relates to MSC in service area One VLR for each MSC 10
- 11. Packet Switch Network 11
- 12. Packet Switch Overview-Cont’ What is SAU, PDP, SDS? HLR Subscriber SAU – Stand for Simultaneously Attached Users GSM/WCDMA – Subscriber attached to the Sub network PDP Packet Sub – Packet Data Protocol – Data structure present for both SGSN/GGSN – Contains subscriber’s session SAU information (Active user) – Information such as IP address, IMSI, Subscriber tunnel ID SDS SDS – Simultaneous Data Session – Can be a PDP or more PDP 12
- 13. Packet Switch Overview- Cont’ What is SGSN? Serving GPRS Support Node Packet routing and transfer to/from SGSN service area Output of charging data Session management 13
- 14. Packet Switch Overview- Cont’ What is SGSN? Connection to other nodes (HLR, MSC, BSC, SMS- GMSC, SMS-IWMSC, GGSN). Mobility management Ciphering and authentication 14
- 15. Packet Switch Overview- Cont’ What is GGSN? Stand for Gateway GPRS Support Node Provide interface to external packet network Act as the router for routing IP address for all subscribers Functionality for associating subscriber to the right SGSN 15
- 16. Packet Switch Overview- Cont’ What is GGSN? Charging support (Output of billing) GPRS session management toward external Firewall Border gateway 16
- 17. Packet Switch Overview- Cont’ 17
- 18. Agenda Core Network Overview Market Situation Ericsson Portfolio Network Evolution Summary 18
- 19. One Family, Different Generations.. WCDMA 2G GSM/GPRS WCDMA EDGE WCDMA WCDMA 3G Time 19
- 20. People want mobile communication Mobile voice traffic by region 35 30 LAM 25 Teraminutes CEMA 20 15 APAC 10 NAM 5 WE 0 2005 2006 2007 2008 2009 2010 2011 2012 Cambodia: 66% growth Y on Y in number of subscribers (Q2 2008) 20
- 21. People want broadband everywhere Broadband subscription forecast 2000 Subscriptions (Millions) Fixed 1500 1000 Mobile 500 0 2005 2006 2007 2008 2009 2010 2011 2012 21
- 22. Agenda Core Network Overview Market Situation Ericsson Portfolio Network Evolution Summary 22
- 23. Ericsson Products Portfolio (GSM and WCDMA) MSC SGSN Service MSS/MGw GGSN Layer OSS UTRAN BSS Terminals 23
- 24. Ericsson Portfolio Example of product- Circuit Switch (CS Core) M-MGw 24
- 25. Ericsson Portfolio Example of product- Circuit Switch (CS Core) MSC-S 25
- 26. Ericsson Portfolio Example of product- Packet Switch (PS Core) SGSN node 26
- 27. Ericsson Portfolio Example of product- Packet Switch (PS Core) M120 M20 GGSN node 27
- 28. Agenda Core Network Overview Market Situation Ericsson Portfolio Network Evolution Summary 28
- 29. Network Evolution IP Multimedia Subsystem (IMS) Evolution to all IP (Wireline/Wireless) IMS Multimedia services enable – File sharing – Video HSPA PLMN – Voice – Text message WiFi Hotspot Fixed Wireless – Presence WLAN terminal PC with WLAN Soft client Phone CS mobile phone PC with Soft client 29
- 30. Agenda Core Network Overview Market Situation Ericsson Portfolio Network Evolution Summary 30
- 31. Summary Circuit Switch Function Packet Switch Function Market Situation Ericsson Portfolio Ericsson Network Evolution 31
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