network architectures for future mobile systems: the roles of ip and atm
DESCRIPTION
Network Architectures for future mobile systems: The roles of IP and ATM. Guilhem Ensuque BT Laboratories, UK [email protected]. Enhanced. Services. Agent. Transaction. ID. Security. Agency. Information. Execution. Service. Generator. Service. Service. Base. Agent. - PowerPoint PPT PresentationTRANSCRIPT
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MTM’99 Workshop
Heidelberg, 25 February 1999
Network Architectures for future mobile systems:
The roles of IP and ATM
Guilhem Ensuque
BT Laboratories, UK
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MTM’99 Workshop
Heidelberg, 25 February 1999
Task 3: Advanced software
Task 4: Network architectures
Task 2: Wireless Transport
AgentManagementService
SecurityService
AgentTransportService
EnhancedServices
AgencyID
GeneratorInformationBase
AgentExecutionService
AgentCommunication
Service
TransactionService
Network
Project outline
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MTM’99 Workshop
Heidelberg, 25 February 1999
Task 4 participants
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MTM’99 Workshop
Heidelberg, 25 February 1999
Rationale
• Vision: UMTS = ubiquitous high-speed intelligent multimedia services.
• Current situation: UMTS Phase 1 = GSM + more capacity
FILL THE GAP !
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MTM’99 Workshop
Heidelberg, 25 February 1999
Ways to explore Wireless LANs
ATM and mobility
IP end-to-end
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MTM’99 Workshop
Heidelberg, 25 February 1999
B-ISDN Architecture
SS7
STP
STPU-HLR
STP STP
APT
BRAN
EMAS - N
APT
EMAS - E
EMAS - N
APC
EMAS - E
APT
BRAN APT
APC
WATM
B-ISDN
RNC
Node B
U-VLR
UTRAN
RNC
Node B
U-MSC
AAL switching
Query Function
Other NetworksSTP
LS
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MTM’99 Workshop
Heidelberg, 25 February 1999
Mobile ATM/PNNI Architecture
SS7STP
U-HLR
STP
RNC
Node B
U-VLR
STP
UTRAN
RNC
Node B
U-MSC
APT
BRAN
EMAS - N
APT
EMAS - E
EMAS - N
APC
EMAS - E
APT
BRAN APT
APC
AAL switching
WATM
PNNI core network
LS
Signalling gateway
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MTM’99 Workshop
Heidelberg, 25 February 1999
IP architecture
Operator’s IP backbone
Global Internet
GGSNSGSN
GSM BSS
BTS BSC
HLR CSE
IGSN*
SIP proxy, DNS, Diameter, WWW,
email...
Mobile IP
Media Gateway
Signalling Gateway Call Agent
NAS
Operator’s Server Farm
Wireless LAN
SS7
STP
PSTN, GSM, other legacy
N*64kbps C.S.N. ...
APT BRAN APC
APT
Node B RNC
RNC
UTRAN
AAL
WAP
Support for:•real-time QoS•multicast•accounting
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MTM’99 Workshop
Heidelberg, 25 February 1999
Future Context
1999 2000 2001 2002 2003 2004 2005 2006
GPRS roll-out UMTS Phase 1 UMTS Phase 2
IP Telephony
multicast
IP QoS
AAA
Mobile IP
The IP wave
A Wireless IP world
The mobile wave
Laptops ubiquitous
Bluetooth
Mobile PDAs
Wearable computers
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MTM’99 Workshop
Heidelberg, 25 February 1999
What role for ATM?
• ATM to the terminal hasn’t come true
• Use ATM for QoS guarantee
IP
ATM
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MTM’99 Workshop
Heidelberg, 25 February 1999
Hybrid architecture
IP network
Server farm
Wireless LANs
Node B RNC
RNC
UTRAN
AAL
BRAN
APT
APT
APC
IGSN
ATM backbone
IGSN