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Cisco All-IP Mobile Wireless Network Reference Model

Cisco All-IP Mobile Wireless Network Reference Model. Presentation_ID. 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

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Cisco All-IP Mobile Wireless Network Reference Model

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  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. Packet Gateway DSF SGW SGW IP Network BP-GW PSTN SDU MGC RRC CSM MCF HLR SDB ATCF AAA All IP Network Reference Model MGW SCP IP BTS FS

  6. Architecture Guideline • Distributed IP-based “MSC” processing • MCF, CSM, 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 CAs • MCF acts as wireless access signaling gateway • Better inter-vendor operability

  7. Service Delivery • Traditional Voice Services • Transport voice in traditional voice frames over the air interface • Voice frames are converted into VoIP packets by an appropriate entity (e.g., BTS) • Integrated Data Services • Transport mobile user IP packets over the air interface • Basic data services • VoIP, multimedia services over basic data services

  8. Packet Data Services • IPlayer tunneled transport model with QoS and security • Effective handoffs to enable multimedia & voice applications • The ability to access Home based services • Efficient transport of user data over the radio networks

  9. Traditional Voice Services • RRC interfaces with BTS to receive call & signaling msgs • MCF manages mobility & connections b/w BPGW & BTS • CSM maintains call state without feature server functions • Inter-MCF & inter-BPGW communications to support handoff

  10. 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 IP Mobility management • Security and QoS • Future: multiple users/terminals, policy, application-aware

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

  12. Recommendations • Separation of bearer and signaling • Distributed peer-to-peer architecture • Fixed and Mobile wireless convergence • Multiple layers of mobility management • End-to-end seamless QoS • Support for traditional voice & integrated data services

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