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Network Architectures for future mobile systems: The roles of IP and ATM

Network Architectures for future mobile systems: The roles of IP and ATM. Guilhem Ensuque BT Laboratories, UK guilhem.ensuque@bt.com. Enhanced. Services. Agent. Transaction. ID. Security. Agency. Information. Execution. Service. Generator. Service. Service. Base. Agent.

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Network Architectures for future mobile systems: The roles of IP and ATM

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  1. Network Architectures for future mobile systems: The roles of IP and ATM Guilhem Ensuque BT Laboratories, UK guilhem.ensuque@bt.com

  2. Enhanced Services Agent Transaction ID Security Agency Information Execution Service Generator Service Service Base Agent Transport Agent Agent Service Management Communication Service Service Network Project outline Task 3: Advanced software Task 4: Network architectures Task 2: Wireless Transport

  3. Task 4 participants

  4. Rationale • Vision: UMTS = ubiquitous high-speed intelligent multimedia services. • Current situation: UMTS Phase 1 = GSM + more capacity FILL THE GAP !

  5. Ways to explore • Wireless LANs • ATM and mobility • IP end-to-end

  6. SS7 Other Networks U-HLR LS Query Function B-ISDN U-VLR EMAS - N EMAS - N U-MSC EMAS - E RNC WATM EMAS - E AAL switching APC RNC APC UTRAN APT Node B APT APT BRAN Node B APT BRAN STP STP STP STP STP B-ISDN Architecture

  7. Signalling gateway SS7 LS U-HLR U-VLR PNNI core network EMAS - N EMAS - N U-MSC EMAS - E RNC WATM AAL switching UTRAN EMAS - E APC RNC APC Node B APT APT APT Node B BRAN APT BRAN STP STP STP Mobile ATM/PNNI Architecture

  8. IP architecture STP Mobile IP Signalling Gateway SS7 WAP Call Agent CSE HLR SIP proxy, DNS, Diameter, WWW, email... PSTN, GSM, other legacy N*64kbps C.S.N. ... Operator’s Server Farm NAS Media Gateway BTS BSC Operator’s IP backbone GSM BSS GGSN • Support for: • real-time QoS • multicast • accounting SGSN Global Internet AAL RNC Node B IGSN* RNC UTRAN BRAN APC APT APT Wireless LAN

  9. IP Telephony IP QoS Mobile PDAs Mobile IP Bluetooth AAA Laptops ubiquitous multicast The IP wave Wearable computers The mobile wave Future Context GPRS roll-out UMTS Phase 1 UMTS Phase 2 1999 2000 2001 2002 2003 2004 2005 2006 A Wireless IP world

  10. IP ATM What role for ATM? • ATM to the terminal hasn’t come true • Use ATM for QoS guarantee

  11. Wireless LANs Hybrid architecture Server farm IP network IGSN IGSN AAL RNC Node B ATM backbone APC APT RNC UTRAN APT BRAN

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