Transcript 3G - Security Audit Systems

3GPP all-IP Workshop -Nokia All-IP System Design Principles
February 7, 2000
Sami Huusko
[email protected]
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Nokia All-IP System Design Principles
3G RAN
WLAN
Cable
DSL
PSTN
All-IP
Core Network
Legacy
Wireless
Internet
• Fast track: Leverage the best-in-class telecom and datacom standards
• Enhance existing specifications, or develop new ones when necessary, to reach open,
multivendor system design
• Smooth evolution for both network and services
• Scalability: Support for 1 Billion+ terminals
• Rapid and flexible creation of new services: unlimited differentiation
• Separation of service, connection and mobility control: access independent and
globally unified services
• System optimized for high load IP traffic
• Support of mobility between accesses
• End-to-end QoS support with high reliability and spectrum efficiency
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IP Version 6: The Basis of the All-IP System
• Huge growth of mobile Internet terminals will exhaust IPv4 address space
• All wireless terminals will have WAP and GPRS
•
IPv6 brings enough IP addresses
• Ease of scalability
• Supporting billions of new devices and huge amounts of new bandwidth
• Simplified, cost-efficient architecture without NATs , Proxies, ALGs,...
• Always-on connection establishes a variety of new services
• Push, location-based, etc.
• Integrated Security
• Efficiency: IPv6 improves efficiency in a number of areas.
• Routing, Broadcast handling
• Quality of Service improvements
• Fragmentation, Flows
WLAN RAS
DSL
• Mobility Across Access Technologies
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RAS
Cable RAS
3G RAN
3GSGSN
3G RAN
3GSGSN
IPv6
3Gall-IP GGSN
Packet Core
3GSGSN
3G RAN
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IPv4
(public or private)
ER/FW
IPv6
IPv6
ER/FW
between
access systems
GW
(public or private)
PSTN
Benefits of IPv6
For end users / companies
• Easy management:
Autoconfiguration
• Embedded encryption support
and authentication
• Embedded mobility
• Embedded multicasting
• Internet Provider selection
• Efficient packet processing in
routers
• Real-time support
• Protocol extensions for
proprietary solutions
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For ISPs / Operators
• Easy management:
Autoconfiguration
• Efficient address allocation
• Improved multicast
management
• Renumbering possible
• Efficient network route
aggregation
• Efficient packet processing in
routers
• Real-time support
Service Architecture
• Common service machinery for all access
systems
• A core set of basic and supplementary services
defined
• e.g., call divert, barring, pre-paid,
emergency call, etc
• Open APIs (Parlay, JAIN, etc.) to support rapid,
flexible and secure service creation to enable
• 3rd party application development
• Vendor independence
• New business models with external service
providers
• OSA service architecture to support services
• Similar to current IN services
• Exploiting the enhanced capabilities of IP
network (video, multimedia etc.)
• Globally accessible services via CAMEL/WIN
or by direct access between terminal and
application server
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Application
Servers
Framework
Server
Other Service
Capability Servers
OSA
Parlay/Corba/IP
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Short message
service center
WAP
Server
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HSS
Web
Server
SCP
Service Capability Servers:
1) Message Transfer
2) Call Control
CSCF
All-IP System Level Architecture
Application
servers
SCP
HSS CAP
Gr+
MAP+
Service
capability
servers
OSA
WIN
Iu-PS
3G RAN
3GSGSN
SIGTRAN
IPv6
All-IP Core
RAS
SIP
H.248
CSCF
MGCF
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MGW
SIGTRAN
Call State Control Function
Home Subscriber Server
Media Gateway Control Function
Media Gateway
MRF
MRF
RAS
RSGW
TSGW
3GGGSN
PSTN
TSGW
RSGW
WLAN, DSL,
cable...
CSCF
HSS
MGCF
MGW
H.248/
IP
MAP
IS-41
ISUP
Legacy
Cellular
Internet
Multimedia Resource Function
Remote Access Server (DSLAM, head end…)
Roaming Signaling Gateway
Transport Signaling Gate
All-IP Reference Architecture -Robust Platform for Future Evolution
SCP
Legacy Mobile
Signaling
Networks
Service Layer
OSA, VHE,
etc.
CSCF
Application Layer
RSGW
CSCF
External IP
Networks
MGCF
HSS
MRF
Transport 3GSGSN
Layer
3GGGSN
TSGW
MGW
RAS
3G RAN
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WLAN, DSL, Cable, etc.
PSTN/
External CS
Networks
Conclusion -- Requirements for Future All-IP Systems
• Mobility Handling
• Determined by, and optimised for, mobile terminals
• Multiservice
• Common Network for real time and non real time services
• Rapid, flexible and easy creation of new services
• Layered Network Functionality
• For independence of access, transport, applications and service creation
• For system flexibility and future evolution
• Multiaccess & Access Independence
• Several accesses including WCDMA, EDGE, WLAN, Cable etc.
• Mobility between accesses (Global IP Mobility)
• IPv6-Based
• For mobility between accesses (Global IP Mobility)
• For scalability and address space
• Evolution and Legacy Support
• For utilisation of existing investments
• For service continuity
• Shared Transport and Network Management
• For cost efficiency
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