1 Presentation_ID © 1999, Cisco Systems, Inc. Cisco All-IP Mobile Wireless Network Reference Model Presentation_ID
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
1Presentation_ID © 1999, Cisco Systems, Inc.
Cisco All-IP Mobile Wireless
Network Reference Model
Cisco All-IP Mobile Wireless
Network Reference Model
Presentation_ID
2Presentation_ID © 1999, Cisco Systems, Inc.
Wireless Access: A Single IP NetworkWireless Access:
A Single IP Network
IP Network
DSLAccess
CableAccess
EnterpriseNetwork
Other IPNetwork
All-IPwirelessaccess
IP BTSIP BTS
CircuitNetworkLegacy
mobile systems
Wireless becomes just another access technologyWireless becomes just another access technologyMobility mgmt & radios resource mgmt are the keyMobility mgmt & radios resource mgmt are the key
3Presentation_ID © 1999, Cisco Systems, Inc.
Functional ArchitectureMajor Functional Blocks
Functional ArchitectureMajor Functional Blocks
Services Services
Radio Access Radio Access
Core functionsCore functions
Other IP Network
PSTN
Non-IP Core Network
Other IPWireless Network
4Presentation_ID © 1999, Cisco Systems, Inc.
All-IP Service ArchitectureAll-IP Service Architecture
Transport
User
Control
Radio Backhaul Network
IP
E-mail Voice Unified Messaging
Distance learning Telephony E-commerceWeb
Radio resource ctrl Mobility control Call control
QoS Security AAA Address Mgmt
APIs
5Presentation_ID © 1999, Cisco Systems, Inc.
All IP Network Reference ModelAll IP Network Reference Model
IP Network
HLRHLR
SGW
Packet Gateway
SDBATCF
IP BTSIP BTSIP BTSIP BTS
MCF
RRC
CSM
DSF
BP-GW
SCP
MGW
SGW
PSTN
MGC
SDU
AAA
FS
6Presentation_ID © 1999, Cisco Systems, Inc.
Architecture GuidelineArchitecture 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
7Presentation_ID © 1999, Cisco Systems, Inc.
Service DeliveryService 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
8Presentation_ID © 1999, Cisco Systems, Inc.
Packet Data ServicesPacket 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
MS
MCF AAA
BBTTSS
RRC
DADSF
SDB
SDU
CSM
ATCF
9Presentation_ID © 1999, Cisco Systems, Inc.
Traditional Voice ServicesTraditional 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
MCF CSM
ATCF
BPGW
PacketGW
MGC
SGW
MGW
FS SDB
RRC
Signaling Bearer
SS7
PSTN
IP
SDUBTS
10Presentation_ID © 1999, Cisco Systems, Inc.
Mobility ManagementMobility Management
• GoalsFast handoff & efficient routing
Independent of radio access and media transport
Support security and QoS while the mobile moves
• Functions
Registration, roaming, location tracking
• IssuesUser/mobile node addressing
Micro and IP Mobility management
Security and QoS
Future: multiple users/terminals, policy, application-aware
11Presentation_ID © 1999, Cisco Systems, Inc.
QoS for Wireless AccessQoS 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
12Presentation_ID © 1999, Cisco Systems, Inc.
RecommendationsRecommendations
• 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
Related Documents
