From GSM To IMT-2000/UMTS And HSPA - ITU
From GSM to IMT-2000/UMTS and HSPA:Delivering full Broadband Wireless Access& MobilityJean-Pierre Bienaimé Chairman, UMTS ForumITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Summary 3G and IMT 2000 FamilyUMTS phase 1 principlesFrom GSM to GSM/UMTSKey Technical Characteristics of HSDPAHSDPA BenefitsKey Technical Characteristics of HSUPAHSUPA benefitsHSPA: a win-win solution3G Long Term EvolutionSome conclusionsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20061
The IMT-2000 Family concept ITU has defined five IMT-2000 standards: IMT-2000 standards are evolutions of 2G standards––––FDD mode of UMTS: W-CDMATDD mode of UMTS: TD-CDMA and Chinese TD-SCDMAcdma2000 (IS95 evolution)UWC136: this is an evolution of IS136 that relies on EDGE andGPRS, but that was finally abandoned– DECT– UMTS is a migration from GSM. It is the result of an agreementbetween the GSM world (network principles, services) and Japan(radio access technology) This alliance between Europe and Japan is significant. As a matter offact it yielded that the footprint of UMTS would initially contain thefootprint of GSM and Japan. The following frequency bands have been recommended forIMT-2000 systems– 1885 - 2025 MHz– 2110- 2200 MHzITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20063G Operator Evolution Options (Mid 2004 Shares UPAW-CDMA8%TDMA14%CDMA One90% EDGECDMA20001x RTTCDMA20001x EV-DOCDMA20001x EV-DVITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20062
UMTS Phase 1: General points UMTS phase 1 :–The Core Network is an evolution of the GSM/GPRS Core Network:a MSC is used for the circuit services; SGSN and GGSN are usedfor the packet services–The radio system is entirely new; it includes two modes WCDMA, Frequency Division Duplex (FDD) for the paired spectrumTD-CDMA, Time Division Duplex (TDD) for the unpaired spectrum– MAP is common to GSM and UMTS, this allows the GSM/UMTSroaming 3GPP defined one standard common to UMTS phase 1Core Network and to GSM Release 99 Core Network– As a consequence the advantages of GSM (services, SIM card,interfaces ) have been kept for UMTSITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006UMTS Radio Access 1/2 New throughputs at the radio interface: 8 kb/s, 64kb/s, 128 kb/s, 384 kb/s WCDMA uses the following radio resources: 19201980 MHz and 2110-2170 MHz A UMTS/WCDMA carrier utilizes 5 MHz duplex– This means that 12 carriers can be defined– UMTS provides new radio resources allowing toaccommodate higher traffic demandsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20063
UMTS Radio Access 2/2:the two UMTS modes19001920TDDUL/DL1980FDD UL2010 2025 2110TDDUL/DL2170FDD DLFULFUL/DLFDLTDD ModeFDD ModeITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006W-CDMA and TD-CDMAtechnologies comparedtimetimepower/code W-CDMA, FDD mode (Frequency Division Duplex) in the paired bands(2x60 MHz)TD-CDMA TDD mode (Time Division Duplex) in the unpaired bands(35MHz)power/code 0.625 ms5 MHzFDD Modefrequency5 MHzfrequencyTDD ModeBoth TDMA and CDMA principles are usedITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20064
Radio resources planningGSM With GSM it is necessary to usefrequency reuse schemes in order tominimise interference With CDMA, all cells use the samefrequency resourcesCDMAITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Four facts about UMTS Core Network common to GSM and UMTS The radio system is completely new, thereforenew equipments shall be rolled out UMTS provides a continuous coverage, this is acellular coverage comparable to a GSM coverage UMTS allows new radio resources for operatorsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20065
GSM/UMTS network sAHLRISUPGbAGSMBSCMap GnGiGnGSMBTSIn a first phase the two Core Network are separated. This will migrate to an architecture where the Core Network iscommon to GSM and UMTS radio accesses. Most value added services are already common to GSM and UMTSITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Features/Services – Orange France example GSM and GPRS services/features presently can be delivered by theUMTS network of Orange France with higher bitrates– voice services, SMS, Voice mail, GSM supplementary services, CAMELfeatures, SIM toolkit, MMS, WAP services, WEB browsing, data transfer onboth circuit bearers and packets bearers. Some of these services will be improved by the higher bit ratesprovided by the UMTS radio interface– up to 64 kb/s for the circuit switched services– up to 128 kb/s uplink and 384 kb/s downlink for the packet switchedservices Innovative services based on picture will be provided as well :– videophony– video streaming– downloading of videoclipsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20066
Coverage and roaming GSM/UMTS dual mode features (selection/reselection andhandover) are implemented in both the infrastructures and theterminals. Services fallbacks are implemented in order that theUMTS subscribers can benefit from the GSM coverage When using a GSM/UMTS terminal, the UMTS subscribers ofOrange France are offered a world coverage– They will benefit from the present GSM roaming agreementsconcluded between Orange France and the GSM operators– This is possible because the MAP is common to GSM and UMTS Roaming agreements have been concluded with numerousUMTS networksITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006From GSM to GSM/UMTSThe efficient path to 3G For GSM operators, UMTS offers a smoothmigration from 2G to 3G– Dual mode mobile stations– Core Network common to GSM and UMTS– Reuse of 2G services Since MAP is common to GSM and UMTS, thesuccess of GSM roaming can be kept andextended– UMTS subscribers will benefit from the GSM foot print JapanITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20067
3G/UMTS: Evolving to meet future needsAs a complete mobile system standardised in 3GPP, 3G/UMTSoffers a clearly-defined evolutionary path to higher data speeds,greater capacity and increased functionality to support newservices 3GPP Releases 5 & 6 enhance earlier iterations to bring customers astep closer to the complete "3G experience” High Speed Packet Access (HSPA) maximises operators’ availablespectrum resources, offering high symmetrical data rates and reducedlatency, while reducing delivery costs per bit Phases I & II of the IP Multimedia Subsystem (IMS) ensure smoothinterworking with other core networks, and enables operators to offermultimedia services built on Internet applications, services and protocols Interworking with WLAN gives users the greatest flexibility in choosinghow they communicate plus MBMS, enablers for Push to talk over Cellular (PoC) and more ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSDPA (High Speed Downlink Packet Access)A new paradigm for packet data Integrated voice on a dedicated channel (DCH), compliant toUMTS R99 High Speed Data (up to 14.4 Mbps) on a new downlinkshared channel on the same carrier (HS-DSCH) and can bedeployed in both FDD & TDD modesHSDPA, as an evolution of the 3GPP Radio Interface (R5), introduces: Dynamic adaptive modulation & coding, multicode operation, Fast scheduling of packet data, fast physical layer retransmission ofdata packets. This is accomplished by incorporating many of the key scheduling& control processes at the base station – as opposed to the RadioNetwork Controller (RNC) – and thus closer to the air interface.ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20068
Upgrading from Release 99 WCDMA to HSDPA is smooth since – from an air-interface perspective –HSDPA can coexist on the same RF carrier with Rel.99 WCDMA; only Node B (base station) is affected.ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSDPA: key technical benefits These new radio techniques provide higher throughputs on the radiointerface 1.8Mb/s in 2006, then 3.6 Mb/s and even 7.2 Mb/s Benefits expected from these high throughputsFor the consumer marketThe following services are being considered: High speed download (video andmp3), Video streaming and TV live with higher quality, High speed browsingFor the business marketHSDPA is expected to leverage the PC card market for business nomads Latency time is reduced The new Shared Channel HSDPA is compatible with UMTS R99.– provides a better utilisation of the radio resources– allows to accommodate more simultaneous users in a given cell– is particularly well suited to the bursty traffic– HSDPA and R99 can be provided in the same cell, terminals can coexist andaccess simultaneously to the networkITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20069
What are the Benefits of HSPA?HigherData RatesPeak Data Ratesup to3.7–14 Mbpsper userRicherApplicationsHigherCapacityLower down link packetdelay –improvementfor streaming,backgroundand interactiveapplications2x more subscribersand5x throughput(10 Mbps vs. 2 Mbps)HSDPA further reduces the cost per megabyteITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Higher Data Rates for the End User HSPA Capabilities – DownlinkCategoryMax Data SpeedAvailability121.8MpsCommercial in 200563.6MbpsCommercial now87.2MbpsFirst network tests completed1014.4MbpsPlanned for 2007 HSPA Capabilities – UplinkCategoryMax Data SpeedAvailability21.4MbpsCommercial in 200731.4MbpsCommercial in 2007ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200610
HSPA: Improved Capacity & LatencyADSL GERANTypical Throughputin 5Mhz (Mbit/s)1-15UMTSHSPA1101Average Throughput 2048 160-200 128-300 500-700(kbit/s)Capacity(users/cell)Latency (ms for a32byte ping)-89405-20026012060ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Example: HSDPA PC DGEEDGEGPRSGPRSUSIMUSIMPC Card Sierra WirelessAirCard 850PC Card NovatelMerlin U740ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200611
Among First HSDPA Handsets BenQ-Siemens EF91 features 3.2 megapixel camera and multimedia player Available Summer 2006 Samsung SGH-Z560targeted at EuropeanmarketsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006High Speed Packet Access (HSPA) enablesnew applications HSPA will stimulate many new applications, a large number of which have yet tobe introduced or conceived. As an extrapolation of today’s usage patterns, it canbe expected that new applications will include:High-Speed Internet AccessWith HSPDA offering similar speeds to most DSL connections, with the addedvalue of ubiquitous mobility, UMTS can be expected to become to preferredconnection medium for a range of users, whether it be via a laptop or a handheldterminal.Voice over IPVoice is clearly not a new application, but when delivered over IP and coupledwith other interactive media such as video and text, this new service mix willbecome very attractive.Multi-player GamingThe improved interactivity of the networks supporting HSPA is expected to havea significant impact on the mobile gaming industry. Multi-user games, whetherbroadband or narrowband will benefit from the real time interactivity that will bepossible and the end user experience will be significantly enhanced.ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200612
and HSPA enhances existing onesStreaming Live TV With the increased capacity of HSPA networks, morestreaming services can be offered to more and more users.These TV streaming services have already shownthemselves to be extremely popular in many markets andthis trend can be repeated and improved on with HSPA.Video Telephony and Conferencing Video conferencing or the delivery of multiple videostreams to a single terminal will become more feasible nowthat video services can be delivered using an IP stream.ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSPA Service Impact High Speed Browsing Multi-player Gaming Voice over IPDeviceCapabilities E-mail with attach’nt Video Downloads Mobile TV Music Downloads E-mail text MMS exchange MS Office apps SMS Low Speed Browsing1020ServicesUnchanged50100New Serviceswith HSPAServices withimprovedexperience200500 kbpsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200613
HSPA New Service ExampleMulti-Player GamingUMTSAccessPlayer 1Higher BandwidthLower Latency in DownlinkGamingServerUMTSAccessPlayer 2 latency, bandwidth & capacity will enable Multi-Player GamingImprovedITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Transfer Duration for FTP Downloading (s)HSPA Improved Service ExperienceMusic DownloadsWithoutHSDPA Speed of download willincrease consumer usage80HSDPAUE Cat 1260T/34020T / 10HSDPAUE Cat 61000246810File Size MBytesFile Transfert Duration with HSDPA Streaming Class of HSPAenables longer video streams Mobile Broadband will resultin higher demand for richcontentITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200614
Making the business case (1)HSDPA reduces network delivery costs per bitHSDPA increases data capacity of 3G/UMTS networks by a factor of5, offering a reduced network cost for data services. At maximumuse of the network, Radio Access cost per Mbyte in USD (sourceAnalysis Research):- GSM/GPRS:0.07- EDGE:0.04- UMTS/WCDMA:0.02- UMTS/HSDPA:0.01Smooth, seamless upgrade at incremental cost Implementation of HSDPA is achieved via a simple overlay, whichin most cases is only a software upgrade in the RAN with noadditional sites, plus use of same carrier for voice and data. HSDPA can be smoothly implemented in co-existence with alreadydeployed UMTS/WCDMA networks. Most equipment shipped today is already HSDPA compliant.ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Making the business case (2)Deploying HSDPA requires:New Node B and RNC softwareAdditional Node B processing hardwareDeploying HSDPA does not require:Changes to network architectureIntroduction of new network elementsEquipment to be changed outNew frequency allocationsThe cost of upgrading an existing 3G network with HSDPA is than thecost of deploying a new network to support Wireless Broadband services: 10% additional Capex if 100% of 3G sites upgraded with HSDPA“HSDPA is the most cost effective networkfor the delivery of Mobile Broadband services” – O2ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200615
HSDPA – CAPEX SavingMore than 70%CAPEX savingSuburban without HSDPASuburban with HSDPAUrban without HSDPAMore than 65%CAPEX savingX1X2X3X4X5Urban with HSDPAX6A cost effective solution for networkcapacity expansion (Node B CAPEX saving)ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSDPA – Capacity & CoverageMore capacity (for HS data) which which isishigherhigher forforHSDPAHSDPA3GMoreCapacityITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200616
HSDPA – Capacity & Coverage which which isis higherhigherforfor HSDPAHSDPA3GWiderCoverageWider availability (forHS data)ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSUPA (High Speed Uplink Packet Access) HSUPA is specified in 3GPP R6 It will not be commercially launched before 2007 A new Uplink Channel (E-DCH) is defined Mobility & architecture:– Soft/softer handover is allowed– Power control is used Reuse of some HSDPA concepts:– Hybrid ARQ for better and faster link adaptation– 2ms TTI to reduce delay (but 10 ms TTI alsostandardized)– Scheduler at the NodeB side to allocate resource to theUE and control uplink load. Foreseen performance : 1-2 MbpsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200617
HSDPA and HSUPA – Comparisons3G R99HSDPA R5Transport channelsDCHHS-DSCHHSUPA R6E-DCHPhysical channelsDPCHHS-PDSCH; HS-SCCH; HSPDCCHE-DPCH; E-AGCH;E-RGCH; EHICHEnhanced DedicatedTransport channel typeDedicatedSharedVariable spreading factorYes, SF4 512No, fixed 16Yes, SF2 & SF4Link adaptation techniquesFast power control andouter power controlAdaptive Modulation andCoding (AMC)Fast power control AdaptiveTFC selectionQPSKModulation schemeQPSKQPSK & 16QAMSoft/softer handoverYesNoYesTTI duration10 ms (10 ms-80 ms)2 ms2 ms and 10 msMulti-code operationN/Aup to 15up to 4MAC entityMAC-d (RNC)MAC-hs (Node B)MAC-e (Node B)Error detect and correcttechniquesForward Error Correct(FEC) by channel codingand interleavingH-ARQ, interleaving andretransmission (soft combining)H-ARQ, interleaving andretransmission (softcombining)Soft combining techniques forretransmissionsN/AChase Combining andIncremental RedundancyChase Combining andIncremental RedundancyMulti H-ARQ processes/UEN/AYesYesMax throughput per cell(theoretical)2 Mbps14.4 Mbps5.76 MbpsTypical UE throughput 300 Kbps 2 Mbps DL 1- 1.5 Mbps ULITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSUPA – High Speed Uplink Packet AccessEnd Users BenefitsOperators BenefitsA natural evolution of HSDPA - High speedbecomes two-way!Complements HSDPA by increasing data uploadTruly broadband mobile multimedia serviceanywhereNew service opportunities in uplink – Newlucrative user segmentGreater cell capacity and cell throughputIncreased and improved coverage for uplink highspeed dataImproved customer experience - Additionalrevenues by converting fixed DSL userImproved customer experience (Higher datarate comparable to fixed DSL - Reducedlatency )Extended service range for high data rateFaster uplink data transmission ( E-mails withlarge attachment, MMS, Video clip)Higher revenue &Source: NECreduced churnITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200618
HSUPA – Service OfferingsExamples of future services– Person-to-person online gaming– Personal Mobile WEB– Mobile email with attachment– High-quality videoconferencingRequirements– Bi-directional high data rates– Real time– Interactive– Low service latencyHSUPA enables further business opportunities(new service generation) for operatorsSource: NECITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSxPA / HSPAHigh Speed (Downlink/Uplink) Packet AccessTechnologies on 3GPP evolution path, natural evolutionof current 3GRel.5HSDPARel.6HSUPAReuse of already invested 3G spectrumReuse of 3G network infrastructureSame Node B and RNCSame Core NetworkSame site/mast/antennasSaving on time and cost in site acquisition andplanning for new nodesAdditional capacity by only simple S/W upgradeMost vendor’s current UTRAN products are H/WreadySignificantly reduced investment for capacity expansionSource:NECITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200619
HSPA: a Win-Win Solution for Mobile OperatorsCAPEX & OPEX savingsGreater total system capacity at significantlylower investment costCapacity expansion at lower cost by an easyS/W upgradeSaving on time and cost in site acquisition andplanning for new nodesReduced maintenance cost due to same O&MplatformPerformance boostImproved cell capacity and cell throughputImproved user experienceHigher data speed comparable to fixed DSLon the move - Faster download and uploadtimeWider service availability for high speeddata – Seamless broadband servicesBetter service quality and connectivityRevenue boostHigh user throughput, data rate andreduced latencyIncreased ARPU due to addition of a new lucrativeuser segment (mobile business & heavy dataconsumer user)Extended coverage for higher data rateAdditional revenues by converting fixed DSL userAdditional revenue from new service generationSource:NECAdditional revenue due to early deploymentITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSPA New Applications The higher data rates provided by HSxPA will allow some newapplications to be deployed.– Because of the limited availability of HSxPA (at least in theearly years), the new applications will be those best suitedto static use. New applications that could be enabled by HSxPA are:– Security cameras – ability to use HSUPA to transmit realtime, high quality video;– Mobile TV broadcast possibly using MBMS requires HSDPAand may be restricted to specific locations;– Laptop access to office – as an alternative to WLANhotspots.Source: O2ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200620
Deployment of New ApplicationsHSUPAHSDPAServiceCoverage AreaBroadcast AreaHSDPA & HSUPAServiceCoverage AreaITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006HSPA key benefits HSPA – Improves data speeds per user– Improves service latency– Improves Network CapacityHSPA – Offers new services such as multi-player gaming & VoIP– Improves the experience of services like music downloads– Stimulates new usage patternsHSPA – Will be used by almost 1 billion users globally in 2012– Will generate data revenues of around 120bn by end 2012– Will stimulate data ARPU by 30% (reference: UMTS Forum Report #39)ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200621
Wireless Networks Will Co-Exist *!"*(') *% & ) ,*)*&)#"/0 %& &' (.&ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006WiMAX Services & Applications Roadmap2005: Fixed Outdoor–E1/T1 level service forenterprises–Backhaul for hotspots–Limited residential broadbandaccess2006 (802-16d): Fixed Indoor–Indoor ‘last mile’ access forconsumers–Wireless DSL–Metrozone / Enterprisecampus piconetMetrozoneFixedOutdoorWiFiBackhaul2007/2008 (16e): Portable/Mobile- ‘Portable’ broadband accessfor consumers- Always best s PiconetWi-Fi* HotspotITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200622
WLAN / WiMAX: complementary to 3G/UMTS WLAN gives “hot spot” coverage WiMAX extends coverage to metropolitan area networks 3G/UMTS gives full mobility WLAN is useful for high-speed Internet/Intranet access for low mobility & stationary users(especially corporates) WLAN coverage of a major city may require typically approx 100:1 as many access pointscompared with number of UMTS base stations for equivalent coverage; WLAN also requiressubstantial investment in backhaul capacity Concerns regarding WLAN performance when hot spot capacity is shared by a large numberof simultaneous users WiMAX – broadband wireless access (BWA) system for metropolitan area networks 3G/UMTS offers benefits of wide area coverage, full mobility, integral security, roaming, fullintegration with charging/billing systemsWLAN & WiMAX coupled/combined with 3G/UMTS/HSPA will offermobile broadband for EVERYBODY and EVERYWHERE, whatever thetechnology and access modeITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Technology Trends - HSPA in abigger pictureTechnologies towards HSPAThroughput[Mbps]802.xxLTE / Super3GHSPA R5 & R63G R99EDGEGPRSGSMSystem throughputSpectral efficiency CapacityEnd-user perceived quality100MIMT AdvancedHSDPAHSUPAIP Optimization10M1MW-CDMAR99LowHighMobilitySource: NECITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200623
3G/UMTS Long Term Evolution (LTE):basic principles HSPA is the first progressive step toward delivering ‘triple play’(telephony, broadband and TV) in a mobile broadbandenvironmentLikely acceptance of mobile broadband and mobile triple play willraise the need for evolved UMTS; therefore it is vital that operatorsensure the long term competitiveness of 3G infrastructureThe 3GPP RAN Long Term Evolution (LTE) task force was createdat end 2004, notably considering the ‘Super 3G’ proposal of NTTDoCoMoThe proposed RAN architecture, placing increasing functionalitywithin the NodeB, will be based on IP routing with existing 3Gspectrum, providing speeds up to 100 Mbps by using channel –transmission bandwidth between 1.25MHz and 20MHz3GPP Evolved UMTS specifications should target availability ofcommercial products around 2008-2010ITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 20063G/UMTS Evolution (1)A look to the futureITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200624
3G/UMTS Evolution (2)UMTS / HSDPA in context of other wireless technologiesMobility / RangeWireless Technology PositioningVehicleHigh AWalkPedestrianIndoorPersonal AreaTe 2 rm01 Ev0olutionWiMAX technologies(IEEE802.16d/e) arebandwidth scalable andcover additional areasfor fixed wireless andnomadic accessIEEE802.16eDECTWLANIEEE(IEEE 802.11x) 802.16a,dbluetooth0.1LongHSDPAEDGENomadicFixed urbanFixed3GVehicularRuralW-CDMA and itsenhancement HSDPAcover the biggest areain the diagram ofmobility vs. user rate110UWB100User data rateMbpsITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 2006Some conclusions 3G/UMTS and its evolution (HSDPA, HSUPA, LTE ) offers theoptimal solution to providing Broadband Wireless Access GSM, UMTS and evolutions are built in a compatible andevolutionary manner which allows to protect the investments andto migrate smoothly customers and networks according to themarkets requirements while keeping the benefits of GSM (security,worldwide coverage) GSM/UMTS/UMTS evolutions networks provide both basicservices (voice, SMS ) and broadband networks: up to 14.4 Mb/swith HSDPA Rolling out GSM and UMTS in bands lower than 600 MHz (ie in the470-600MHz band) will allow to provide these advantages in a costeffective mannerITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200625
For more informationwww.umts-forum.orgITU/BDT Regional Seminar on Broadband WirelessAccess (BWA) for rural and remote areas for AfricaYaoundé 18-21 September 200626
– FDD mode of UMTS: W-CDMA – TDD mode of UMTS: TD-CDMA and Chinese TD-SCDMA – cdma2000 (IS95 evolution) – UWC136: this is an evolution of IS136 that relies on EDGE and GPRS, but that was finally abandoned – DECT IMT-2000 standards are evolutions of 2G standards – UMTS
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Carrier IMT-SC UWC-136 Multi Carrier IMT-FT DECT Frequency Time UMTS Evolved GSM Evolved ANSI-41 IP-based Networks Core Networks IMT-TC Time-Code WLAN Bluetooth FDD:Paired . GSM/GPRS/EDGEGSM/GPRS/EDGE Common PartsCommon Parts WCDMAWCDMA " GSM/EDGE radio " 800/900/1800/1900 MHz spectrum " Nationwide " WCDMA radio
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2.2 The Global System for Mobile Communications (GSM) 56 2.3 The GSM Network Architecture 57 2.4 The GSM Radio Interface 58 2.5 Logical Channels in GSM 58 2.5. 1 Burst Structure for GSM 61 2.5.2 Mapping of Logical Channels in GSM 62 2.5.3 Mapping of Traffic Channels and Associaled Control Channels 65 2.5.4 Mapping of the BCCl-VCCCH 65
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UMTS/IMT-2000 Mobile phone subscribers worldwide . PDC total Analogue total W-CDMA Total wireless Prediction (1998) 2008: 3.5 bn! Mobile phone subscribers worldwide . 9/8/08 2 Development of mobile telecommunication systems 1G 2G 2.5G 3G IS-95 cdmaOne IS-136 TDMA D-AMPS GSM PDC GPRS IMT-DS UTRA FDD / W-CDMA EDGE IMT-TC UTRA TDD / TD-CDMA .
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