Cisco All-IP Mobile Wireless Network Reference Model

1. Cisco All-IP Mobile WirelessNetwork Reference Model Presentation_ID

2. DSL Access Circuit Network Legacy mobile systems IP Network Enterprise Network All-IP wireless access IP BTS Other IP Network Cable Access Wireless becomes just another access technology Mobility mgmt & radios resource mgmt are the key Wireless Access: A Single IP Network

3. Other IP Network PSTN Services Non-IP Core Network Other IP Wireless Network Core functions Radio Access Functional Architecture Major Functional Blocks

4. Web E-commerce Distance learning Telephony Mobility control APIs QoS Security Address Mgmt AAA Radio resource ctrl Call control Radio Backhaul Network All-IP Service Architecture User E-mail Voice Unified Messaging Control IP Transport

5. MGW Data Service Fun IP BTS SGW SCP SGW IP Network Bearer Path GW PSTN SDU MGC RRC Call Agent MCF HLR SDB ATCF All IP Network Reference Model

6. Architecture Guideline • Distributed IP-based “MSC” processing • MCF, CA, ATCF, MGC, … • Better scalability and reliability than the legacy MSC • Fast creation of new services • Separation of CA and MCF • Convergence of wire-line and wireless CAs and FSs • Support IN services using API on the standard CA • MCF acts as wireless access signaling gateway • Better inter-vendor operability

7. MCF IP BTS SDU MS DSF IP Network Packet Data Service • Stateless intermediate IPtransport for mobility • Effective handoffs and QoS to enable multimedia and voice applications • Efficient transport of user data over the radio networks • Unified user authentication and service authorization

8. Mobility Management • Goals • Fast handoff & efficient routing • Independent of radio access and media transport • Support security and QoS while the mobile moves • Functions • Registration, roaming, location tracking • Issues • User/mobile node addressing • Micro and macro mobility management • Security and QoS • Future: multiple users/terminals, policy, application-aware

9. Micro Mobility Layered IP-based Mobility Management Application mobility • Micro-mobility • Provide intra- and inter-wireless-operator-domain handoff • May cross different radio access technology • Macro-mobility • Provide access to home-based service • Application mobility Macro mobility

10. Immediate Challenges inMobility Management • IP-based macro-mobility management • IP-based micro-mobility management • Integration of mobility mgmt at different layers • Support QoS while the mobile moves

11. CL DF GT BE QoS Routing Scheduling Traffic sources signaling Service-Level Agreement Resources are managed at different time scales Support multiple service classes: DiffServ, IntSev QoS Management in Wire-line Network

12. QoS for Wireless Access • QoS classes to be supported • Interactive: delay guarantees • Media streams: BW guarantees • Bulk data, background • Can use DiffServ or IntServ • Deal with mobility • Intelligent admission control • Support service adaptation • Radio resource control • Channel management • QoS mapping b/w layers

13. Summary • Separation of bearer and signaling • Distributed peer-to-peer architecture • Fixed Mobile convergence • Integrated “RAN” and “Core” • Multiple layers mobility management • End-to-end seamless QoS