WCDMA Core Network
3G Non-technical Presentation
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Agenda
Network OverviewMarket SituationEricsson PortfolioNetwork EvolutionSummary
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Network Overview
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Network Overview-Cont’
GMSCGMSC
Core Network
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Network Overview-Cont’
Circuit Switch
Packet Switch
GMSCGMSC
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Circuit Switch Network
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Circuit Switch Overview-Cont’ what is MSC?
Mobile Switching Center (MSC)Combines of MSC-S & M-MGwResponsible for:
– Routing traffic and– Signaling information in the network
Some functions:– Call control management (Registration,..)– Mobility management (Location update,
handover, call routing,…)
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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
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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
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Circuit Switch Overview-Cont’ What is VLR?
Visitor Location Register (VLR)Database for both subscriber information and
Information relates to MSC in service areaOne VLR for each MSC
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Packet Switch Network
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Packet Switch Overview-Cont’ What is SAU, PDP, SDS?
SAU– Stand for Simultaneously
Attached Users – Subscriber attached to the
networkPDP
– Packet Data Protocol– Data structure present for both
SGSN/GGSN– Contains subscriber’s session
information (Active user)– Information such as IP address,
IMSI, Subscriber tunnel IDSDS
– Simultaneous Data Session– Can be a PDP or more
HLR Subscriber
GSM/WCDMA Sub
Packet Sub
SAU
SDS
PDP
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Packet Switch Overview- Cont’ What is SGSN?
Serving GPRS Support Node
Packet routing and transfer to/from SGSN service area
Serving GPRS Support Node
Packet routing and transfer to/from SGSN service area
Output of charging data
Session management
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Packet Switch Overview- Cont’ What is SGSN?
Ciphering and authentication
Mobility management
Connection to other nodes (HLR, MSC, BSC, SMS-GMSC, SMS-IWMSC, GGSN).
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Packet Switch Overview- Cont’ What is GGSN?
Stand for Gateway GPRS Support NodeProvide interface to external packet networkAct as the router for routing IP address for all subscribersFunctionality for associating subscriber to the right SGSN
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Packet Switch Overview- Cont’ What is GGSN?
Charging support (Output of billing)
GPRS session management toward external
Firewall
Border gateway
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Packet Switch Overview- Cont’
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Agenda
Core Network OverviewMarket SituationEricsson PortfolioNetwork EvolutionSummary
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WCDMAWCDMA
EDGEEDGE
Time
2G 3GGSM/GPRS WCDMA
WCDMA
One Family, Different Generations..
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People want mobile communication
Mobile voice traffic by region
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101520253035
2005 2006 2007 2008 2009 2010 2011 2012
LAMCEMA
APAC
NAMWE
Tera
min
utes
Cambodia: 66% growth Y on Y in number of subscribers (Q2 2008)
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People want broadband everywhere
Broadband subscription forecast
0
500
1000
1500
2000
2005 2006 2007 2008 2009 2010 2011 2012
Fixed
Mobile
Sub
scrip
tions
(Mill
ions
)
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Agenda
Core Network OverviewMarket SituationEricsson PortfolioNetwork EvolutionSummary
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Ericsson Products Portfolio (GSM and WCDMA)
MSC MSS/MGw
SGSN GGSN
Service Layer
UTRAN BSS Terminals
OSS
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Ericsson Portfolio Example of product- Circuit Switch (CS Core)
M-MGw
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Ericsson Portfolio Example of product- Circuit Switch (CS Core)
MSC-S
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Ericsson Portfolio Example of product- Packet Switch (PS Core)
SGSN node
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Ericsson Portfolio Example of product- Packet Switch (PS Core)
M120 M20
GGSN node
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Agenda
Core Network OverviewMarket SituationEricsson PortfolioNetwork EvolutionSummary
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Network Evolution
IP Multimedia Subsystem (IMS)Evolution to all IP (Wireline/Wireless)Multimedia services enable
– File sharing– Video– Voice– Text message– Presence
CS mobile phone PC with Soft client
PC with Soft client
WLAN Phone
Fixed Wireless terminalWLAN
HSPAPLMN
WiFi Hotspot
IMS
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Agenda
Core Network OverviewMarket SituationEricsson PortfolioNetwork EvolutionSummary
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Summary
Circuit Switch FunctionPacket Switch FunctionMarket SituationEricsson PortfolioEricsson Network Evolution
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