GPRS Operation of CMCC

1. GPRS Operation of CMCC China Mobile Communications Corporation

2. Agenda • Brief Introduction Of CMCC • Brief Introduction Of CMNet • CMCC GPRS Trial • Structure of CMCC GPRS Network • GPRS Service Plan

3. Agenda • Brief Introduction Of CMCC • Brief Introduction Of CMNet • CMCC GPRS Trial • Structure of CMCC GPRS Network • GPRS Service Plan

4. Brief Introduction Of CMCC • The largest GSM operator in the world[ in term of number of subscribers] . • The second largest mobile operator in the world [in term of number of subscribers] . The third largest mobile operator [ in term of stock value ] . • Mobile Subscribers：more than 50 million till now

5. Brief Introduction Of CMCC • The largest mobile communications operator in China • Market Share in China(>80%) ,Coverage：2038 cities of county level and higher • International roaming：84 operators in 49 countries or regions

6. Brief Introduction Of CMCC Mobile Subscriber Growth from 1987 till 1999

7. Brief Introduction Of CMCC • Fifth Internet service operator in China • A newcomer for Internet service and with a goal of becoming a world-class communications enterprise

8. Agenda • Brief Introduction Of CMCC • Brief Introduction Of CMNet • CMCC GPRS Trial • Structure of CMCC GPRS Network • GPRS Service Plan

9. Brief Introduction Of CMNet • The 5th Business National IP backbone in China. • A nation-wide IP backbone which will cover all provinces of China. • A network that will provide Internet service not only to computer users but also mobile users.

10. Foreign ISP CMNet backbone Other nation-wide ISP in China NIC/NOC Provincial network Provincial network Provincial network Access network (PSTN/PLMN/ISDN/DDN) ? IP phone gateway Some Other Services Mobile Phone Internet Content Provider User End Router End User Overview of CMNet

11. Nation-wide Backbone Provincial Network Core Node Aggregation Node Backbone Node Common Node Logical Structure of CMNet

12. Structure of CMNet • 2-level structure including nation-wide backbone network and provincial network. • Provincial networks are interconnected through the nation-wide backbone. • Two types of nation-wide backbone nodes: backbone node and core node. In principle, core nodes are connected fully-meshed, in order to save links,they are partly connected fully-meshed recently.

13. Structure of CMNet • Backbone nodes are connected through core nodes.When necessary, the connection between two backbone nodes are permitted. • Two types of provincial nodes: aggregation node and common node. • Aggregation nodes are used to connect common nodes to the nation-wide backbone. In principle, Aggregation nodes are connected fully-meshed, in order to save links, we use partly full-mesh connections recently.

14. Structure of CMNet • Aggregation nodes are connected to the nation-wide backbone nodes directly. • In principle, common nodes are connected to the nation-wide backbone through aggregation nodes. When necessary, the direct connection between common nodes and backbone/core nodes are permitted.

15. Agenda • Brief Introduction Of CMCC • Brief Introduction Of CMNet • CMCC GPRS Trial • Structure of CMCC GPRS Network • GPRS Service Plan

16. Trial Sites and Partners

17. Road Map • 3Q 1999 Determine trial sites and partners • 4Q 1999 Prepare for lab trial • 1999.12.25 Successfully initiate the first PDP Context • 2Q 2000 Upgrade trial systems to SMG 31 • June 2000 Begin to make single-system test

18. Road Map • Aug. 2000 Prepare for the IOT test • Aug. 2000 Prepare for live trials • Aug. 2000 Begin to make live trial in Fuzhou • 2000.9.8 Complete single-system test • Sept. 2000 Begin to make IOT test

19. Agenda • Brief Introduction Of CMCC • Brief Introduction Of CMNet • CMCC GPRS Trial • Structure of CMCC GPRS Network • GPRS Service Plan

20. What is GPRS? • General Packet Radio Service • An extension to traditional GSM technology • End to End Packet Based • Higher transmission rate up to 171.4bps • A kind of 2.5 generation wireless technology, a smooth way of evolving from GSM to 3G

21. SMSC BSC HLR MSC PCU Ss7 Network FR network Gc Gs Gd Gr External Packet Data Networks SGSN GGSN Internal IP Backbone Gb Gn Gi Mobile Station New Add Network Element GSM Interface GPRS Signaling and Data Interface Upgraded Network Element Composing of GPRS network

22. How CMCC will construct its GPRS network? • Two level structure: • GPRS provincial network:provide GPRS carried service to end users • GPRS nation-wide backbone:Interconnect all the GPRS provincial networks to realize inter-province roaming; interconnected with other PLMN to realize inter-PLMN roaming.

23. usage of IP address • Use CMNet as IP backbone of GPRS network • GPRS node use public IP address • Usage of user address : • Dynamically allocated public IP address • Dynamically allocated private IP address and use NAT when access Internet • Statically allocated private IP address and use NAT when access Internet

24. Connection to ss7 network HSTP H&LSTP LSTP SGSN GGSN GGSN SGSN

25. Format of APN • Access Point Name: Network ID+Operator ID • Operator ID=MNC0000.MCC0460.GPRS • Two types of Network ID • Regional APN Network ID: Ended with an area identifier, e.g., CMCC.COM. SD. MNC0000.MCC0460.GPRS • National APN Network ID: Ended with no area identifier, e.g., CMNet.com. MNC0000.MCC0460.GPRS

26. Visited PLMN GPRS network MS Visited BSS Visited SGSN Visited BG CMCC GPRS network Home BG Home GGSN PDN Inter-PLMN roaming • Access PDN through visited GPRS network MS Visited BSS Visited SGSN Visited GGSN PDN • Access PDN through visited BSS, SGSN and Home GGSN

27. Agenda • Brief Introduction Of CMCC • Brief Introduction Of CMNet • CMCC GPRS Trial • Structure of CMCC GPRS Network • GPRS Service Plan

28. Service Plan • WAP over GPRS • Group application • Vehicle tracing and controlling • Intranet remote accessing • E-commerce application • Conventional Internet Service such as WWW, FTP, TELNET