- 1. System Architecture for IP-based Seamless and Ubiquitous
Networks ShiroSakataNEC [email protected]
2.
- 1.Network and IT Market Trend
- 2.System Architecture for Ubiquitous Services
- 3.Application to Wireless & Mobile Networks
- Application to Photonic & Broadband
3. 1.Network and IT Market Trend - Value shifts from core to
user, network to services - New business opportunities with network
and serviceintegration caused by deregulation Unbundling network
resources & functions and then on-demand rebundlingthem in a
multi-carrier environment- Emerging Dynamic Collaboration in
enterprise systems through the integration of IT and network
technologies - Versatile service support in a ubiquitous
networkenvironment Requirement for adaptation to a wide variety of
networks andterminals Networks: Wired broadband and wireless
networks (wireless LAN,cellular network, adhoc personal area
network, sensornetwork) Terminals: PC, digital home
appliances/digital TV/home server, PDA,cellular phone, wearable
terminal, embedded car terminal 4. Traditional Network Future
Network Bundled network resources Operators A Operators C Operators
B Networks dedicated to individual operators and user services
Interoperability between different operators and dynamic network
resource allocation Operator A Operator B Operator C e.g, Virtual
Network Operator VNO) Web service logical NW Content delivery
logical NW Storage service logical NW Other ubiquitousService
logical NW
- - NW resource virtualization
Unbundling Resource rebundling adapted to individual services
Potential New Business Model by Network Unbundling & Rebundling
5. Core competence R&D Planning, Production Enterprise A
Business function outsourcing Business activities in which an
enterprise enhances itsown core competence and reacts dynamically
to drastic changes through the flexible collaboration with partners
Self-support of all functions Outsourcing Next Generation
Management Style Development partner Customers Logistics partner
Sales partner Joint productization Realtime Info. sharing Order
management Realtime info. sharing, Inventory management Joint
productization,Technology sharing 6. Dynamic Collaboration through
IT and NW Integration -Multivendor Support for Customer System- -
24 hours, 365 days system support and on-demand bandwidth
utilization - Remote conference system with tele-existence/virtual
reality capabilityBroadband VPN Mobile VPN DB Call Center Customer
Window Support Center WEB I/F Maintenance Center Distributed &
Collaborative AP From overseas VoIP Web Head office Alliance
partner IP Network Remote maintenance Customer VLAN VPN VLAN:
Virtual LAN 7. Ubiquitous Services over Versatile Networks &
TerminalsCellular phone PDA Laptop PC Wearable Terminal Home
appliance Digital TV Home server Sensors Car terminal : Servers
Versatile networks Terminals ADSL FTTH Wired LAN MAN(Wide area
Ether) Wireless LAN IMT2000 Wireless LAN Core Network Bidirectional
Communication(*) Storage Service Location/PresenceInfo. Service
Home Control and Security(*) Electronic Ticketing Content Delivery
Ubiquitous Services 8. Bidirectional Communication Home User Office
User Office On the move PublicWireless LAN 9. Home Control and
Security
-
- User controls robot from outside through the
-
- The robot controls home appliances with
-
- The robot automatically acts in accordance
-
- On the travel or on the way back home
-
- - Confirmation of door locking
-
- - Monitoring and taking care of pets,
-
- - Automatic video recording
-
- - Warming bath when approaching the
-
- - Automatic switching-on of lights when
Light HDTV and HDVideo recorder Door lock anddoor phone Feeding
Warming bath Internet Maid robot 10. 2.System Architecture for
Ubiquitous Services [Network Technology Trend] - Increasing
requirements for guaranteed multimedia services intransition to all
IP networks Video streaming by CDN (Content Delivery Network), IP
phone, Digital broadcast (data broadcast), etc. - Higher-flexible
and lower-cost enterprise systems VPN(IP, SSL), wide area Ethernet
- Requirements for Robust & Secure open mission critical system
emerging into distributed wide-area business environment - Emerging
wireless LAN and interworking with 3G cellular and other networks
for supporting versatile ubiquitous services - Context Awareness is
a key term in ubiquitous services context includes users situation
such as location, presence, preferences,various sensed data, etc. -
Requirements for VoIP as a short-term killer application End-to-End
QoS, e.g. small delay, low jitter, guaranteed bandwidth Context
transfer for network-network roaming 11. 1.From best-effort to
high-quality support in response to individual service requirements
2.Seamless service continuity in mobile and muti-network/carrier
environments 3.End-to-end enhanced robustness and security in an
open network - providing robust & secure capability adapted to
individualservices [Design Principles] Ubiquitous platform as
middleware- enabling on-demand network resource allocation
betweendifferent operators environment 12. Ubiquitous Platform (1)
Application-Network Collaboration - Dynamic network resource
management and allocation as requestedby individual applications
Load balancing and dynamic routing control Common API(Application
Programming Interface) for accepting appli-cation requests and
network control interface for network resourcemanagement (2)
Network-Network Collaboration - Seamless interoperability between
different operators Roaming: service portability, common
authentication (single sign-on), etc. Media handover: low latency
handover, audio & video quality assurance- End-to-end network
control GMPLS/ASON, NNI/UNI (3) Network Traceability - End-to-end
traceability Enhancing robustness against cyber attacks and system
faults throughTCP session management 13. Ubiquitous Platform API
NCI (Network Control I/F) Server Terminal Network node (Router,
Switch, etc.) Bidirectional Communication Storage Service
Location/Presence Info. Service Home Control and Security
Electronic Ticketing Content Delivery Ubiquitous Services
Ubiquitous Platform Cellular phone PDA Laptop PC Wearable Terminal
Home appliance Digital TV Home server Sensors Car terminal :
Servers Versatile networks Terminals ADSL FTTH Wired LAN MAN(Wide
area Ether) Wireless LAN IMT2000 Wireless LAN Core Network (1)
Application-Network Collab. (3) Network Traceability (2)
Network-Network Collab. 14. (1)Application-Network Collaboration
Background: Required technologies:
- Enabling user service to submit requirements to network in
- a heterogeneous operator environment
- Easing of tight coupling between a user service and the
- network control functions provided by the network
- Facilitating load balancing regardless of user service
location
- Optimizing the network resource selection and allocation
adapted
- Requirements for user service flexibility such as
- on-demand network resource control, e.g. bandwidth,
- session path, etc., have been increasing.
15. Allowing to select best-effort or guarantee on-demand for
each service (1)Application-Network Collaboration Virtualization of
network resource management to services Service requirements
Instruction to networks regarding resource allocationInternet
connection VoIP CDN VPN Mobilephone /PDA PC/Home appliance Sensor
Servers Terminals Ubiquitous Platform SONET Wide-areaEther FTTH
ADSL PDC IMT2000 Wireless LAN
Conventional router Router with ubiquitous platform API
NCI(Network Control Interface) Networks 16. (2)Network-Network
Collaboration Background: Required technologies:
- Network resource management for each session
- Handover while holding network resources in an end-to-end
- session without content quality degradation
- High-speed network switching through context transfer
- Exchanging network and service attribute information
including
- user authentication information between different
operators
- Service portability and continuity, e.g., providing
seamless
- roaming and handover in a wireless environment, will be
- achievable through the operator-to-operator collaboration
17. Assuring Service Portability and Media Handover (2)
Network-Network Collaboration Acquisition of AccessNetwork As
AttributeRoaming in Transport Level Context(Session Info.) Transfer
Bandwidth AV coding Authentication Security level etc. Move e.g.,
WirelessLAN e.g.,3G Cellular Dual-mode phone Operator A Operator B
Confirmation ofService Continuity Access rights, Resource, etc.
Negotiation Restart based onAccess Network AsAttribute in
AccessNetwork B Resource Allocation 18. Transition from Unbundling
to Rebundlingof Network Resources resources Operator A Operator X .
resources Resources are bundled Unbundle + API NCI Rebundle for
each service with resource negotiation/brokerage, and resource
managementvirtualization to services For service B For service Y
decomposed 19. (3) Network Traceability Background: Required
technologies:
- IP packet level monitoring has been becoming impossible
- because of explosive traffic increase. TCP session level,
- for example, monitoring is expected to enhance the
security
- in terms oftraceability of attack sources, i.e. to
facilitate
- the attack source identification.
- One of the possible solutions:Segmentation of an end-to-
- end TCP session into multiple TCP sessions and traffic
- monitoring and access control at concatenation points.
- Session access control at concatenation points enables the
- protection from cyber attacks including DoS(Denial of
- Service) attacks before such attacks reach the end user
20. IDC IDC Unknown Intrusion Pattern Detection Quick Trace and
Identification of Source of Attacks or Faults Connection Setup
UnsuccessfulConnectionin case of Fraud IP Attacker Attacker Session
Admission Control TCP Relay Network (3) Network Traceability
- Quick Trace and Identification of Source of Attacks or
Faults
- Traffic monitoring and tracing TCP session by session, not IP
packet-
- Shut-out of Attack or Fault-caused Traffic assuring
Service
Session concatenationpoint 21. 3.Application to Wireless &
Mobile Networks All IP Architecture (3GPP) CS Domain PS Domain
Wireless Access (Cellular, Wireless LAN) IP backbone ISDN /PSDN
Internet MGW MGW Mobile Switch Server GW Switch Server Mobile
Packet Server SGSN) GW Packet Server GGSN) Data Communication
Circuit-switched Communication Application Server IMS (IP
MultimediaSubsystem) HSS (HLR+ AAA ) SIP Server MGW Controller
Signaling GW CS: Circuit Switched PS: Packet switched 22.
Integration of 3G and Wireless LAN Communication area, Mobility,
Portability High speed, High quality 3G Wireless LAN Hotel Station
Airport Cafe Public Space Internet 3G Service area Hotspot
Enterprise Network ISP Content Provider ASPs User info.,
Authentication, Accounting Content Delivery Internet Access VPN 23.
Integration Scenarios discussed in 3GPP Scenario 1 Common Billing
and Customer Care Scenario 2 3GPP system based Access Controland
Charging Scenario 3 Access to 3GPP system PS based services
Scenario 4 Service Continuity Scenario 5 Seamless Services Scenario
6 Access to 3GPP CS Services Feasible solutions in mid-term 24. 3G
- WLAN Interworking Scenarios
- Grant access to 3G CS based services through CSedWLAN
access
6
- Seamlessservice continuityandhandover
- Non-real-time services:Mobile IP
- Real-time services: FastMobile IPprotocols,Context
Transferprotocol,
- Access Router discovery schemes
5
- Handover for specific services
- Change of service quality in mobility across 3G and WLAN
- Both service continuities between 3G & WLAN and WLANs
4
- Operators grants access to 3G PS based services through
WLAN
- Service continuity between 3G and WLAN is not required
- IMS based/location based/instant messaging/presence based
services
3
- AAAare provided by 3G system, e.g.EAP(EAP-AKA for GPRS/USIM
and
- EAP-SIM for GSM/SIM) is used for authenticating user by 3G
server
- Reuse 3G access control and charging principles (HSS/HLR, etc.)
for the
- benefit of 3G system operators and users
2 - Security level of 3G and WLAN are independent- No new
requirements on 3G spec. 1 25. (1) Plug & Service - On-site
real-time service download to mobile terminal- Service
description/registration/retrieval/discovery/creation (2) Seamless
Roaming - Service roaming achieving WLAN(Hotspot)-WLAN orWLAN-3G
service continuity and eventual fast handover- Authentication
roaming achieving single sign-on in a multi-network (WLANs and 3G)
environment (3) Privacy Protection - Utilization of user profile
information for personalizedservices - Privacy information
description/negotiation/protectionbased on W3C P3P (Platform for
Privacy Preferences)Wireless LAN Solution Example WLAN: Wireless
LAN 26. Public Wireless LAN Solution Image Local Server Mobile
Terminal (Station, Airport, Train, Hotel, Restaurant, Caf, etc.) IP
Network Application Server ISP Server Hotspot Laptop PC,PDA, etc.
Wireless LAN Content Server including local content AccessPoint
Local Server Mobile Terminal Wireless LAN Service Providers 3G
service area dual- mode 27. Middleware Architecture forWireless LAN
Solution Mobile Terminal Local Server (Access Point) Remote Server
Applications (Applications & Content) Applications &
Content API NCI IP IP CSMA/CA (IEEE802.11) 3G,ADSL/FTTH Middleware
OS &Devices OS &Devices OS &Devices
Wireless LAN IP Network Protocols Protocols 28.
- Network/Transport functions need to be seamlessly controlled
from services such as bandwidth on demand and VPN
- ASON plays an important role for dynamic network resource
assignment
4.Application to Photonic & Broadband Networks ASON
Networking Software (NMS, EMS, NNI, GMPLS, UNI, NE Software, etc)
QoS SLA Protection Integrated Management Rapid Provisioning,
Multi-Vendor Interoperability Network Design/Optimization, Full
Turnkey Service, Customization Bandwidth on Demand, VPN Core
Network Other Network Function Plug & Play Service Support
Operation Support Network Design Support Service Distribution
Wavelength Transport Service Multi-Service Transport Ethernet
Transport Service ASON: Automatic Switched Optical Network 29.
5.Standardization Issues ITU 3GPP/ 3GPP2 IETF IEEE802.11 W3C
OMA
- Location info. management
- - Digital rights management (DRM)
- Web service (XML, SOAP, UDDI)
- Security (802.11i, 1x/EAP)
- SIP, Presence service (SIMPLE)
- Content caching, content adaptation (CDN)
- - Network control interface
OIF
- Network control interface
Digital broadcast DVB (Europe) ARIB (Japan) ATSC (US) - xHTML
30. 6.Conclusions
- Deregulation-caused potential new business opportunities
- On-demand network resource control for individual services
- Dynamic Collaboration for future enterprise environment
- Support for wireless network-involved ubiquitous services
- - End-to-end robust and secure capability enhancements
Ubiquitous Platform All IP network - Wireless LAN - 3G - GMPLS
optical network
