Presentation on theme: "ITU-T technical results in IMT-2000 Studies: Mobile Network Evolution"— Presentation transcript:
1ITU-T technical results in IMT-2000 Studies: Mobile Network Evolution Greg Jones,ITU-TJune, 2002, Lisbon
2A View of Terminal Mobility Versus Personal Mobility must carry a wireless terminalmust be within radio coverageNetworkwirelessPersonal mobilityneed not carry a terminalmust have a personal numberNetworkwirelineA View of Terminal Mobility Versus Personal Mobility
4ITU-T Recommendations could be found at http://www.itu.int Q (04/02) – IMT-2000 References to Release 1999 of GSM evolved UMTS Core Network with UTRAN Access NetworkQ.1701 (03/99) - Framework for IMT-2000 NetworksQ.1711 (03/99) - Network Functional Model for IMT‑2000Q.1721 (06/00) - Information Flows for IMT‑2000 CS‑1
5ITU-T Recommendations could be found at http://www.itu.int Q.1731 (06/00) - Radio Technology Independent Requirements for IMT‑2000 Layer 2 Radio InterfaceQ.1751(06/00) - Internetwork Signalling Requirements for IMT‑2000 Capability Set 1Supplement 30 (12/00) to ITU‑T Recommendation Q Framework for IMT-2000 Networks - Roadmap to IMT-2000 Recommendations, Standards and Technical Specifications
6ITU-T Recommendations could be found at http://www.itu.int E.164/I.331 (05/97) - The international public telecommunication numbering planE.190 (05/97) - Principles and responsibilities for the management, assignment and reclamation of E-Series international numbering resourcesE.212 (11/98) - The international identification plan for mobile terminals and mobile usersH.323 (11/00) – Packed-based multimedia communications systems
7ITU-T Recommendations could be found at http://www.itu.int Annex H to Rec. H.323 (2001) – Users, terminal and service mobility in H.323Annex I to Rec. H.323 (2001) – Terminal mobility in H.323 (Error prone channels)Annex E to Rec. H.246 (11/00) – Use of H.323 terminals in the PLMNRecommendation G.729 and its Annexes (Rev.) – Coding of speech at 8kbit/s using CS-ACELP (conjugate – structure, algebraic-code- excited liner prediction) (03/96)H.323 (V4 –02/00) – Packet based multi-media communication systems
8ITU-T Recommendations could be found at http://www.itu.int Recommendation H.450 series – Generic functional protocol for the support of supplementary services in H.323H.245 (V6 - 02/00) – control protocol for multimedia communicationH.332 (09/98) – Multimedia terminal for security Internet-based H.323 conferencesH.235 (V2 - 11/00) – Security and encryption for H-series (H.323 and H.245 based) multimedia terminals
9ITU-T Recommendations could be found at http://www.itu.int H.248 (06/00) – Gateway control protocolM.3200 (04/97) - TMN management services and telecommunications managed areas: overviewM.3210(IMT-SP) - Configuration Management Functional Requirements:Service Provisioning for IMT target 2003M (01/01) – TMN Management Services for IMT-2000 Security ManagementThis is note!
10ITU-T Recommendations could be found at http://www.itu.int X.509 ISO/IEC (03/00) – Information Technology – Open Systems Interconnection – The Directory: Public-Key and Attribute Certificate FrameworksX.841 ISO/IEC (10/00) - Information Technology – Security Techniques – Security Information ObjectsX.842 ISO/IEC TR (10/00) - Information Technology – Security Techniques – Guidelines on the Use and Management of Trusted Third Party Services (TTP)X.843 ISO/IEC (10/00) - Information Technology – Security Techniques – Specification of TTP Services to Support the Application of Digital Signatures
11The three-stage process for interface specification Services/FeaturesStage 1Service definitionFunctionalarchitecturePhysicalarchitectureInformationflowsStage 2Signaling requirementsSDL diagramsStage 3Protocol specificationInterfacesSDL – System Description LanguageThe three-stage process for interface specification
13Physical interfaces of an IMT‑2000 family member system CNs of other IMT-2000 family membersto be specified in future CSsCNUIMMTRANCNUIM-MT interfaceMT-RAN interfaceRAN-CN interfaceNNIUIM – User Identity ModuleMT – Mobile TerminalRAN – Radio Access NetworkCN – Core NetworkNNI or CN–CN – Network-to- Network InterfacePhysical interfaces of an IMT‑2000 family member system
14List of Interfaces need to be standardized in ITU NNIMT-RAN interfaceUIM-MT interfaceRAN-CN interface
15Common NNI in the IMT‑2000 Family Member interconnection model IWF – Interworking FunctionCommon NNI in the IMT‑2000 Family Member interconnection model
17SSG - IMT-2000 and Beyond Why create this study Group? growth of wireless access outstripping traditional accesssoon will be over 50% of all subscribersalready the case in some marketsexplosive growth of the Internetstrong correlation between wireless access and internet usageleads to “Wireless Internet”multiple forums working on 3G systemsneed to promote harmonization and convergencerapidly increasing importance of globalization
18Why is the SSG-IMT special? Given significant freedom in conducting its business:Paperless meetings to maximum extent possibleReduced meeting notice requirements (one month, electronically)Reduced contribution submission deadlineAll documents to be available on ITU web siteMeeting reports to be made available quicklyMay use teleconferences, other means to conduct workA de facto trial of selected reform aspects!Plus has the usual powers of a Study Group:Create and approve RecommendationsTo advise TSAG on effectiveness of new procedures
19Data Subscriber Growth Wireless Applications Growth Wireless InternetSource: Strategis Group, World Cellular / PCS Markets, May 1998.(“Other Digital” refers to PDC and PHS.)Source: The Yankee Group, Nortel NetworksSubscriber GrowthData Subscriber GrowthData Traffic GrowthVoice 96%Data 4%Voice 30%Data 70%Wireless Applications Growth
20A Mobile Revolution Fixed Lines vs. Mobile Users, worldwide, Million 1'400Mobile Users1'200Fixed Lines1'000800600400200199319951997199920012003Source: ITU World Telecommunication Indicators Database.
21Special Study Group on IMT-2000 and Beyond Summary of Mandate (1 of 2) Lead SG on IMT-2000 and beyond and for mobilityPrimary responsibility within ITU‑T for overall network aspects of IMT‑2000 and beyondWork planMigration path from existing IMT-2000 systems towards systems beyond IMT-2000Long term common IP-based architectureNear term IP-based internetworkingOverview road mapInterworking functions, if not done elsewhere
22Special Study Group on IMT-2000 and Beyond Summary of Mandate (2 of 2) In addition, will study:Harmonization of IMT-2000 Family members as they evolve beyond IMT-2000Evolution of network aspects utilizing IMT-2000 RTTs as FWANetwork aspects of convergence of fixed and wireless networksStandardization of IMT-2000 interfaces where neededWork with ITU-D to assist developing countries in applying IMT-2000Collaborate with ITU-R 8F (radio) and 8D (satellite)Strong cooperative relations and complementary programs with SDOs, 3GPPsDevelop and approve RecommendationsMake use of provisional working procedures specific to this SSG
23Questions under study (1 of 3) Q.1/SSG Service and Network capability requirements and network architecture establish a clear vision for future mobile services and network capability requirements for “beyond IMT-2000 systems” Q.2/SSG NNI mobility management protocol (Stage 3)define new mobility management signalling application protocols, or enhancements to existing protocols, needed to support IMT-2000 services to enable global roaming between different IMT-2000 family systems. Q.3/SSG Identification of existing and evolving IMT-2000 Systems identify architectures, detailed specifications and releases which have been and will be produced by recognized SDO’s which make up existing and evolving IMT-2000 systems.
24Questions under study (2 of 3) Q.4/SSG Interworking functions to be used with existing and evolving IMT-2000 systemsidentify (and define if not done elsewhere) interworking functions to facilitate appropriate interworking between existing and evolving IMT-2000 family members, PSTN/ISDN and Packet Data NetworksQ.5/SSG Preparation of a Handbook on IMT-2000work with the D and R sectors, coordinate T sector input for a handbook on IMT-2000 to assist developed and developing countries
25Questions under study (3 of 3) Q.6/SSG Harmonization of evolving IMT-2000 Systemsdefine interface requirements and network architectures for harmonization of existing and evolving IMT-2000 systems to provide seamless global roaming for IMT-2000 future Capability Sets (that include high speed packet data, multimedia, and IP-based services)Q.7/SSG Convergence of fixed and existing IMT-2000 systems- describe the principles and requirements for the convergence of fixed and IMT-2000 networksdescribe the architectural requirements for a converged core network to support IMT-2000 capabilities accessible from various wireless and wireline access technologies to support current and evolving IMT-2000 capabilities Q.8/SSG Special Study Group working procedures
27Characteristics of the 4th generation? New network types ?New frequency bands?New air interfaces?New terminals/appliances?Different network management?New services?Better cost/performance ratios?Higher reliability?Perhaps all, but only where the business case justifies the investment !
29Technology perspective of 4th generation 4th generation wireless network and terminal re-configurability (scalable and flexible self-organised), including the adaptation of resource allocation to cope with varying traffic load, channel conditions and service environments.Integration of fixed/mobile/broadcasting networks and rules for distribution and decentralized control of functional entities. Protocols that permit the network to adapt dynamically to changing channel conditions, that allow the coexistence of low and high-rate users, hand-off of high-data-rate users between base stations, congestion-control algorithms that are cognizant of and adjust to changing channel conditions etc. Development of system concepts for digital broadband millimeter wave (up to 200GHz ) capable of delivering bit rates beyond 155 Mbits/s.
30Towards life in 2010: 90% of traffic on mobile networks will be data Domestic demand reaches 100Mbits/s per homeCellular phone locations used in traffic management systemsAll new cars fitted with automated distress system90% of calls will be tetherless1 Terabit memory chipChips with 10 billion transistorsHousehold access by facial recognitionIn-store positioning systems enable personalised guidesVoice interface for home appliances
31Expectation for 4G System: high speed (vehicular: 2 Mbps, pedestrian/indoor:20 Mbits/s)next generation Internet support (IPv6, QoS, Mo-IP)high-capacity 5~10 times to 3Gflexible for providing new servicesutilize higher frequencies (for example 3~8 GHz)lower system cost (1/10 of IMT2000?)4th generation mobile systems will differ from IMT-2000.System deployment history indicates that the generation changes roughly 10 years step.
32It is not only circuit switched voice services! • the mobile component of the Information Society• digital convergence of content, media, data and telecom• a multi-national, multi-sector system• many different protocols (MPEG, WAP, IP, etc.)• a wide range of terminals, products and servicesIt demands global roaming• users want services available everywhere• new services and products for competition and innovation
33Capability Set 1circuit and packet bearer capability up to 144 kb/s in vehicular radio environmentcircuit and packet bearer capability up to 384 kb/s for pedestrian radio environmentcircuit and packet bearer capability up to 2048 kb/s in indoor office radio environmentroaming among the IMT-2000 family of systemsinterworking with IP networksinterworking with other fixed networksservice portability and support of virtual home environmentmultimedia terminals and servicesemergency and priority callsgeographic position/location serviceuser authentication and cipheringsupport of UPT
34Deliverables (1 of 8)2002:New Rec. Q.1702 (Q.LTVN) - Long-Term Vision of Network Aspects for Systems Beyond IMT Q.1: ITU long-term vision (focused around year 2010) on systems beyond IMT-2000 for future mobile service and network capabilities requirements (currently under AAP Last Call)
35Deliverables (2 of 8) 2002: Handbook on IMT-2000 deployment, Q.5 New Rec. Q.SCFN, Q.1: Aspects of service capability requirements, including VHE
36Deliverables (3 of 8)2002:New Rec. Q , Q.3: “IMT-2000 References to Release 1999 of GSM evolved UMTS core network with UTRAN access network” (Release 2)New Rec. Q , Q.3: “ANSI-41 evolved core network with cdma2000 access network”
37Deliverables (4 of 8)2003:Tech. Report, Q.2: New protocols for Common Mobility Management and Global RoamingNew Rec. Q , Q.3: “ANSI-41/GPRS evolved core network with UWC-136 access network”
38Deliverables (5 of 8)2003:New type of output, Q.6: Degree of harmonisation of existing IMT-2000 systemsNew type of output , Q.6: Harmonisation issues relating to existing IMT-2000 systemsNew type of output , Q.6: Harmonisation proposals for evolving IMT-2000 systemsNew type of output, Q.7: Principles and requirements for convergence of public fixed networks and IMT-2000 network
39Deliverables (6 of 8)2003:New Rec. Q.FNAB, Q.1: Long-term high-level network architecture for beyond IMT-2000 systemsNew Rec. Q.NCRB, Q.1: Network capabilities requirementsNew Rec., Q.2: Requirements for new Mobility Management protocols to support Global Roaming in IMT-2000 and beyondNew Rec., Q.7: Network architecture and interface requirements facilitating evolution of existing public fixed networks towards converged core network, supporting IMT-2000 capabilitiesNew Rec., Q.7: Access network interface requirements for utilizing IMT-2000 radio access technologies as FWA with existing public fixed networks
40Deliverables (7 of 8)2004:New Rec., Q.4: Functions required to interwork between IMT-2000 family members developed by SDOsNew Rec., Q.4: Functions required to interwork between IMT-2000 family members and PSTN/ISDNNew Rec., Q.4: Functions required to interwork between IMT-2000 family members and Packet Data Networks
41Deliverables (8 of 8)2004:Tech. Report, Q.2: Identification of the mobility management features and studies the protocol to interoperability, transport layers and mobility managementNew Rec., Q.7: Architectural and network interface requirements for converged core network to facilitate services transparency to users across different access arrangements, including migration path for network convergence
42SSG MeetingsMay , 2002, Ottawa, Canada followed by one-day seminar on IMT-2000 and Systems BeyondNovember 4 - 8, 2002, Geneva, SwitzerlandMarch 3 – 7, 2003, Geneva, Switzerland
43Envisaged Network Environment Around the Year 2010 High-speed data connection is a norm in accessing multimedia services and Internet servicesThe core network is fully IP-basedSoftware radio technology becomes a main element in the wireless infrastructureDigital TV with data service capabilityMobility management will be supporting higher speed objects such as vehicles
44Phases and expected timelines for future development of IMT-2000 and systems beyond
45Defining the Vision: Capabilities of IMT-2000 and Systems Beyond
46Data rates for the new elements of the system beyond IMT-2000 up to 100 Mb/s for the mobile access andup to 1 Gb/s for the nomadic/local area wireless access