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International Mobile Telecommunication-2000 (IMT-2000) An Introduction

International Mobile Telecommunication-2000 (IMT-2000) An Introduction. Wireless Generations What is IMT-2000 What IMT-2000 offers Key features and objectives Spectrum for IMT-2000 Technologies for IMT-2000 Migration paths Future Trends. In this presentation…. MOBILE COMMUNICATION.

emery-joseph
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International Mobile Telecommunication-2000 (IMT-2000) An Introduction

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  1. International Mobile Telecommunication-2000 (IMT-2000)An Introduction

  2. Wireless Generations What is IMT-2000 What IMT-2000 offers Key features and objectives Spectrum for IMT-2000 Technologies for IMT-2000 Migration paths Future Trends In this presentation…

  3. MOBILE COMMUNICATION • 1946- 1960s 1980s 1990s 2000s • Appeared 1G 2G 3G • Analog Digital Digital • Multi Multi Unified Standard StandardStandard Terrestrial TerrestrialTerr. & Sat

  4. MOBILE COMMUNICATION WIRELESS GENERATIONS • 1 G -analog (cellular revolution) - only mobile voice services • 2 G - digital (breaking digital barrier) - mostly for voice services & data delivery possible • 3 G - Voice & data ( breaking data barrier) - Mainly for data services where voice sevices will also be possible • Beyond 3G -Wide band OFDM ? - But surely higher data rates

  5. MOBILE COMMUNICATION LIMITATIONS OF 2nd GENERATION SYSTEMS • No Global standards • No common frequency band • Low information bit rates • Low voice quality • No support of Video • Various categories of systems to meet specific requirements

  6. MOBILE COMMUNICATION THIRD GENERATION (3 G ) STANDARD INTERNATIONAL MOBILE TELECOM 2000. ( IMT-2000) IMT  A FUTURE STANDARD IN WHICH A SINGLE INEXPENSIVE MOBILE TERMINAL CAN TRUELY PROVIDE COMMUNICATIONS ANY TIME AND ANY WHERE

  7. MOBILE COMMUNICATION INTERNATIONAL MOBILE TELECOM 2000. ( IMT-2000) • PROVISIONING OF THESE SERVICES OVER WIDE RANGE OF USER DENSITIES AND COVERAGE AREAS. (In-building , Urban , Sub-urban, Global) • EFFICIENT USE OF RADIO SPECTRUM CONSISTENT WITH PROVIDING SERVICE AT ACCEPTABLE COSY. • IMT-2000 SHALL COVER APPLICATION AREAS PRESENTLY PROVIDED BY SEPERATELY SYSTEMS I.E CELLULAR, CORDLESS AND PAGING etc • A HIGH DEGREE OF COMMONALITY OF DESIGN WORLDWIDE • A MODULAR STRUCTURE WHICH WILL ALLOW THE SYSTEM TO GROW IN SIZE AND COMPLEXITY

  8. IMT-2000 KEY FEATURES INTERNATIONAL MOBILE TELECOM 2000. ( IMT-2000) • ITU’s VISION FOR THIRD GENERATION MOBILE SYSTEM • SINGLE UNIFIED STANDARD (Data & Multimedia Services) • ANYWHERE, ANYTIME COMMUNICATION ACROSS NETWORKS, ACROSS TECHNOLOGIES, SEAMLESS OPERATION USING A SMALL POCKET TERMINAL WORLDWIDE. • HIGH SPEED ACCESS 144KB/S, 384 KB/S & 2MB/S FAST WIRELESS ACCESS TO INTERNET • FULL MOTION VIDEOPHONE • TERRESTRIAL & SATELLITE COMPONETS

  9. Enhanced voice quality, ubiquitous coverage and enable operators to provide service at reasonable cost Increased network efficiency and capacity New voice and data services and capabilities An orderly evolution path from 2G to 3G systems to protect investments. IMT-2000 will provide..

  10. IMT TECHNOLOGIES ITU has finally narrowed down technology options to the following five: • IMT -DS (Direct Spread) : W-CDMA UTRA FDD • IMT -MC (Multi Carrier) : CDMA 2000 • IMT-TC ( Time Code) : TD -SCDMA UTRA TDD • IMT -SC ( Single Carrier ) : UWC - 136 • IMT-FT (Frequency Time) : DECT  • PAIRED DS/ MC/SC ; UNPAIRED TDD  FURTHER HARMONIZATION In Process UTRA : UTMS Terrestrial Radio Access UMTS :Universal Mobile Telecommunication System

  11. Technologies for IMT-2000 IMT-2000 TERRESTRIAL RADIO INTERFACES IMT-DS IMT-MC IMT-TC IMT-SC IMT-FT WCDMA CDMA2000 1X/3X CDMA-TDD UWC-136 FDMA/TDMA DECT CDMA TDMA FDMA

  12. MOBILE COMMUNICATION IMT-2000 HARMONIZATION IS ON-GOING • IMT standards development involves extensive collaboration between many different organizations • Today’s operators need seamless 2G 3G • Many Focus groups have been established by industry  2 G operators GSM ; CDG ,UWCC, DECT forum 3 G GroupsUMTS Forum , OHG  Focus group for IP-based 3G architecture (3G. IP)  SDOs created 3G PP (Partnership Projects) SDO Standards Development Organizations

  13. While a multiplicity of 2G standards have been developed and deployed, the ITU wanted to avoid a similar situation to develop for 3G. Hence, the ITU Radio communication Sector (ITU-R) has elaborated on a framework for a global set of 3G standards, which will facilitate global roaming by operating in a common core spectrum and providing migration path from all the major existing 2G technologies.  The major 2G Radio access networks are based on either CDMA One or GSM technologies and different migration path is proposed for each of these technologies. Migration Path

  14. EVOLUTION TO IMT-2000/3G IMT-2000 CPABLE SYSTEMS GPRS EDGE GSM PDC WCDMA CdmaOne Cdma 2000 TDMA IS-136 TDMA/ GPRS TDMA/ EDGE 3G TODAY 2G 2000 EVOLVED 2G 19.2 Kbps 115-384 Kbps 0.384-2 Mbps 64-115 Kbps

  15. Evolution from GSM to 3G 3G EDGE GPRS 2.5G HSCSD GSM 2G

  16. GSM Evolution 2G 2.5G 3G UMTS GSM GPRS EDGE UMTS 5 MHz carrier 2 Mbps peak data rates New IMT-2000 2 GHz spectrum GSM 200 KHz carrier 8 full-rate time slots 16 half-rate time slots GPRS 200 KHz carrier 115 Kbps peak data rates EDGE 200 KHz carrier Data rates up to 384 Kbps 8-PSK modulation Higher symbol rate HSCSD HSCSD Circuit-switched data 64 Kbps peak data rates

  17. Next step towards 3G for GSM/GPRS Networks Increased data rated up to 384 Kbps by bundling up to 8 channels of 48 Kbps/channel GPRS is based on modulation technique known as GMSK EDGE is based on a new modulation scheme that allows a much higher bit rate across the air-interface called 8PSK modulation. Since 8PSK will be used for UMTS, network operators will be required to introduce this at some stage before migration to 3G. EDGEEnhanced Data for GSM Evolution

  18. EVOLUTION TO IMT-2000/3G IMT-2000 CPABLE SYSTEMS GPRS EDGE GSM PDC WCDMA CdmaOne Cdma 2000 TDMA IS-136 TDMA/ GPRS TDMA/ EDGE 3G TODAY 2G 2000 EVOLVED 2G 19.2 Kbps 115-384 Kbps 0.384-2 Mbps 64-115 Kbps

  19. New Software New Software Software Upgrade Software Upgrade 01010 01010 01010 New Software New Software 01010 01010 New Software New Software 01010 01010 01010 01010 New cell sites (in some cases) New Equipment & Software BTS BTS W-CDMA BTS BTS New Terminal 3G SGSN New Equipment BSC Upgrade BSC BSC SGSN SGSN W-CDMA BSC BSC PSTN PSTN GPRS Backbone 3G Data Backbone GPRS Backbone GGSN GGSN Software Upgrade New Equipment & Software 3G GGSN MSC New modified router Modem Pool IP Backbone WWW VPN Enterprise Network Adding W-CDMA Adding GPRS Data GSM Network New Terminal New cell sites (in some cases) BTS New Terminal New Equipment BSC Upgrade BSC MSC New modified router Modem Pool IP Backbone WWW VPN Enterprise Network

  20. Gb Service Creation/ Mgmt. Gs Iu-r Iubis GPRS Core Integrated UMTS Core UMTS BTS UMTS BSC PDN, (e.g. Internet) Other PLMN Iu UMTS Access Network GSM Elements UMTS Elements GSM to UMTS A Abis GSM MSC GSM BTS GSM BSC PSTN, ISDN

  21. MIGRATION PATH 1xEV-DO 1xEV-DV cdma2000 1X MC IS-95-A • Voice • 14.4 kbps • High Capacity Voice • 153 kbps Packet • RF Backward Comp. • 2.4 Mbps Packet • RF Backward Comp. • Higher Cap Voice/ Data • RF Backward Comp. IS-95-B cdma2000 3X MC • Voice • 64 kbps Packet • RF Backward Comp. • High Capacity Voice • 384+ kbps Packet • RF Backward Comp. Edge (Europe) Edge (US) IS-136 GSM GPRS • Voice • 9.6 kbps • 384 kbps Packet GSM W-CDMA • 30-40 kbps Packet • RF Backward Comp. • Voice • 9.6 kbps • High Capacity Voice • 384+ kbps Packet • New RF W-CDMA (Japan) PDC PDC • Voice • 9.6 kbps • Voice • 28.8 kbps • RF Backward Comp. 1995 1999 2000 2001 2002 2003

  22. In terms of migration of major 2G system to 3G capabilities, there would finally be 3 modes of CDMA-based radio interfaces (MC-CDMA, W-CDMA and CDMA-TDD) and two `TDMA based radio interfaces (UWC-136 and DECT). Considerable work is being carried out in respect of W-CDMA and CDMA 2000 worldwide. All European countries are expected to deploy W-CDMA as they have GSM based networks. While other countries such as Japan, Korea, USA etc. are likely to use CDMA-2000 or W-CDMA. Migration Summarized

  23. MOBILE COMMUNICATIONFUTURETRENDS FUTURE HIGH- SPEED WIRELESS DATA NEEDS • 2 - 10 Mb/s packet data rates with wide spread macro-cellular coverage • Ability to allocate maximum resources to individual cells in sub-second time. • Less transmitted powers • Further Reduction in cost

  24. IMPLEMENTATION ISSUES * MINIMUM SPECTRUM PER OPERATOR * NO. OF OPERATORS * SERVICE AREA OF OPERATION * LICENCING METHOD * TECHNOLOGY * INTERCONNECTION ARRANGEMENTS

  25. EXISTING USERS IMT-2000 BAND IS 1885-2025AND 2110-2200 MHz PRESENTLY 1800-2000 MHz BAND IS WITH DEFENCE 2000-2200 MHz IS USED BY BHARAT SANCHAR NIGAM/MTNL FOR POINT TO POINT MICROWAVE LINKS WPCC TO COORDINATE WITH USERS FOR VACATING THESE BANDS

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