gprs operation of cmcc

© China Mobile Communications Corporation www.chinamobile.com

GPRS Operation of CMCC

China Mobile Communications Corporation


AgendaBrief Introduction Of CMCCBrief Introduction Of CMNetCMCC GPRS TrialStructure of CMCC GPRS NetworkGPRS Service Plan


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


Brief Introduction Of CMCCThe 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


Brief Introduction Of CMCCMobile Subscriber Growth from 1987 till 1999

05,000

10,00015,00020,00025,00030,00035,00040,000

K Subscribers

1987 1989 1991 1993 1995 1997 1999

Year

Digital Subscribers

Analog Subscribers


Brief Introduction Of CMCCFifth Internet service operator in

ChinaA newcomer for Internet service

and with a goal of becoming a world-class communications enterprise


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.


Overview of CMNet

Access network

(PSTN/PLMN/ISDN/DDN)

IP phone gateway

End User

Mobile Phone

User End Router

Internet Content Provider

Some Other Services

NIC/NOC

Foreign ISP

Other nation-wide ISP in

China

CMNet backbone

Provincial network Provincial

network

Provincial network

?


Logical Structure of CMNet

Core Node

Backbone Node Common Node

Aggregation Node

Nation-wide Backbone

Provincial Network


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.

Structure of CMNet


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.


Structure of CMNetAggregation 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.


Trial Sites and PartnersTrial Site Trial Partner

Beijing City MOTOROLAShanghai City SIEMENSTianjin City NORTEL

NETWORKSGuangzhou City ERICSSONFuzhou City NOKIAHangzhou City ALCATELShenyang City HUAWEI


Road Map3Q 1999 Determine trial

sites and partners4Q 1999 Prepare for lab trial1999.12.25 Successfully initiate

the first PDP Context2Q 2000 Upgrade trial

systems to SMG 31June 2000 Begin to make single-

system test


Road MapAug. 2000 Prepare for the IOT testAug. 2000 Prepare for live trialsAug. 2000 Begin to make live trial in Fuzhou2000.9.8 Complete single-system testSept. 2000 Begin to make IOT test


What is GPRS?General Packet Radio ServiceAn extension to traditional GSM

technologyEnd to End Packet BasedHigher transmission rate up to 171.4bpsA kind of 2.5 generation wireless

technology, a smooth way of evolving from GSM to 3G


Composing of GPRS network

New Add Network Element

Upgraded Network Element

GSM Interface

GPRS Signaling and Data Interface

Mobile Station

GGSNExternal

Packet Data NetworksGb

Gn

Gs GdGr

Gc

GiSGSN

PCU

BSCSMSC

HLRMSC

Ss7 Network

FR network

Internal IP Backbone


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.


usage of IP addressUse CMNet as IP backbone of GPRS networkGPRS node use public IP addressUsage 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


Connection to ss7 network

SGSN

HSTP

LSTP

H&LSTP

SGSNGGSNGGSN


Format of APNAccess Point Name: Network ID+Operator IDOperator ID=MNC0000.MCC0460.GPRSTwo 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


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

MS Visited BSS Visited SGSN

Home GGSN

Visited PLMN GPRS network

CMCC GPRS network

Visited BG

Home BG PDN


Service PlanWAP over GPRSGroup application

Vehicle tracing and controlling Intranet remote accessing E-commerce application

Conventional Internet Service such as WWW, FTP, TELNET

gprs operation of cmcc

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