1. 1 Presentation_ID © 1999, Cisco Systems, Inc. Cisco All-IP Mobile Wireless Network Reference Model Presentation_ID

2. 2 © 1999, Cisco Systems, Inc. Wireless Access: A Single IP Network IP Network DSL Access Cable Access Enterprise Network Other IP Network All-IP wireless access IP BTS Circuit Network Legacy mobile systems Wireless becomes just another access technology Mobility mgmt & radios resource mgmt are the key

3. 3 Presentation_ID © 1999, Cisco Systems, Inc. Functional Architecture Major Functional Blocks Services Radio Access Core functions Other IP Network PSTN Non-IP Core Network Other IP Wireless Network

4. 4 Presentation_ID © 1999, Cisco Systems, Inc. All-IP Service Architecture Transport User Control RadioBackhaul Network IP E-mailVoice Unified Messaging Distance learningTelephony E-commerceWeb Radio resource ctrl Mobility controlCall control QoSSecurity AAA Address Mgmt APIs

5. 5 Presentation_ID © 1999, Cisco Systems, Inc. All IP Network Reference Model IP Network HLR SGW Packet Gateway SDB ATCF IP BTS MCF RRC CSM DSF BP-GW SCP MGW SGW PSTN MGC SDU AAA FS

6. 6 Presentation_ID © 1999, Cisco Systems, Inc. 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. 7 Presentation_ID © 1999, Cisco Systems, Inc. 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. 8 Presentation_ID © 1999, Cisco Systems, Inc. Packet Data Services IP layer 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. 9 Presentation_ID © 1999, Cisco Systems, Inc. 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. 10 Presentation_ID © 1999, Cisco Systems, Inc. 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. 11 Presentation_ID © 1999, Cisco Systems, Inc. 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. 12 Presentation_ID © 1999, Cisco Systems, Inc. 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