Professional, Reliable and EvolutionalHuawei GSM-R SolutionHUAWEI TECHNOLOGIES CO., LTD.HUAWEI TECHNOLOGIES CO., LTD. Bantian, Longgang DistrictShenzhen518129, P. R. ChinaTel:+86-755-28780808Huawei GSM-R FootprintAsearlyas2002HuaweistartedGSM-Rtechnologyresearchandproductdevelopmentandquickly wasrecognizedbytherailwaymarketasoneofthemostimportantGSM-Rsuppliersforrailway telecommunication solutions.2002: Huawei started to engage in GSM-R R&D.2006:Huawei launched the Industry frst GSM-R Soft Switch Core Network.2007:Verifed GSM-R high speed performance at 430km/h.2008:Huawei launched the unique GSM-R distributed base station.2008:Huawei won the First Prize of National Award for Science and Technology in China byproviding GSM-R solution for the most important cargo railway line in China. 2009:Huawei was awarded EIRENE compliancy certifcate by Lloyds register.2009:Huawei won a GSM-R project of more than 700km for Australia.2010:TUV Rheinland confrmed Huawei EIRENE compliancy.2011:Huawei completed migration from R99 Core to R4 Soft Switch on operational Daqin railway line (690km).2011:Huawei was awarded Sochi line (ETCS L2), Russia for 2014 Winter Olympic Games.2011:Huaweis frst ETCSL2/CTCS-3 LineGuangzhou-Shenzhen line (350km/h) goes into rail operation.2012:Huawei was awarded contracts in Turkey, Italy, South Africa, UAE and Turkmenistan GSM-R Projects.2012:Huawei launches GSM-R 5.0 offering all SIP dispatcher interface, IP transmission links, GSM-R extended frequencies and LTE support.2013:Huawei GSM-R covers more than 14,000+ KM all around world.Huawei GSM-R MilestonesUnique Value of Huawei GSM-RComprehensive redundancy solutionsMature reliability methodologyEIRENE compliancy track recordAll equipment ready for LTEWorlds frst LTE for railway projectIndustry frst SIP dispatcher interfaceGSM-R extended frequencies supportedNotifed Body compliance certifcateIOT tested by vendor independent rail authorityHigh speed validated201020112012GSM-R R & D1st GSM-R Soft SwitchExcellent perfor mance at430km/hAustralia GSM-R ProjectLloyds certificationAll IP migrationTV certificationMulti-line for ETCS L2/CTCS-3Russia Sochi, Guangzhou-Shenzhen Hong KongTurkey,Italy,South Africa,UAE and Turkmenistan Projects14.000km of global GSM-R coverage 20022006200720092013HuaweisGSM-RsolutionisstrictlydevelopedincompliancetoGSM-Rstandardsandbuiltofnetwork elements such as IP core network, conventional and distributed base stations, intelligent network, dispatchers andmobilestationsjusttonamethekeycomponents.Tooffermaximumflexibilitytoourcustomers, HuaweisGSM-RsolutionincorporatesproductsfrommarketleadingGSM-Rsub-systemsupplierssuchas dispatchersets,performancemeasurementsolutionsorCabRadios.Strictcomplianceacrossourinterfaces enabled our customers to mix and match multi vendor GSM-R infrastructures, i.e. Core Network supplied by vendor A and Access (BSS) Network supplied by vendor B. These multi-vendor infrastructures are in operation since many years and have repeatedly been validated by rail customers in China, and Turkey. Huawei GSM-R products are strictly developed according to the latest EIRENE specifcations, and meet all functional and QoS requirements required for interoperability.Compliance Certifcates Issued by Notifed Bodies and Rail CustomersInMay2009,HuaweiobtainedEIRENEcompliancycertificatefromLloyds register (European Notifed Body).Intermsoffunctions,allGSM-R-specificfunctionsareachievedandall functions comply with the EIRENE specifcations.ThenetworkinterfacesandsignalingmessagesoftheGSM-Rsystemcomply with the related 3GPP protocols. In2010TUVRheinlandconfirmedHuaweiEIRENEcompliancyinanextensive IOTcampaignperformedbetweenFunkwerkcabradioequipmentandHuawei GSM-R system.TheGSM-RcabradioMESA23-05(SWCR_SW04.07.03)havebeenassessed within the Huawei GSM-R Trackside Network (confguration according to chapter 4.2.4) in respect of compliance with the applicable requirements. No deviations from the interoperability requirements have been revealed. In 2012, Huawei received Deutsche Bahn customer certifcate confrming Huawei EIRENE compliancy and IOT.TheHuaweitestsystemwasexaminedinourtestlaboratoryindifferent scenarios, based on the acceptance procedures of the test catalogue, which we presented on the ERA conference (ERA document F017_111014). It has become apparent that all stipulated GSM-R performance characteristics are available and no defects/fault reports are pending.ProfessionalAs early as 2005 Huawei started extensive interoperability campaigns with market leading GSM-R peripheral equipmentsuppliers.OurGSM-Rlabsofferallnecessaryfacilitiestointegratelatestfeaturesandcustomer specifc developments for the rail transport segment. In the past, we performed interoperability test with the most important market players of GSM-R products. Today,HuaweisGSM-RsolutionhasbeensuccessfullyIOTedwithGSM-Rinfrastructures(coreandaccess sub systems) from NSN and Nortel/Kapsch. Some of these networks are in rail operation for many years. For terminalsandotherOEMsub-systemsweintegratedGSM-RsolutionsfromSIEMENS,Funkwerk,Frequentis, Selex, Sierra Wireless and many more.In several of our commercial projects, Huaweis GSM-R solution is fully integrated into other venders GSM-R infrastructures (NSS and BSS). For example, for Chinas Cheng Guan line, Huaweis GSM-R NSS interconnects withNSNGSM-RNSS,inGuangzhou-ShenzhenExpressLine,HuaweiBSSinteroperateswithNSNCore-Network, and in Xinfeng shunting yard, Huawei BSS interoperates with Nortel/Kapsch NSS. In Turkey Huaweis BSS is fully integrated with NSN core network for the Eskisehir-Alayunt-Kutahya-Balikesir, EKB ERTMS line. High-speed trains help railways to gain market shares on passenger traffc and answer customers demands in mobility. New high speed lines with speeds of 350km/h are seen more frequently. In wireless communication, highspeedbringschallenges,forexample,theDopplerfrequencyshiftrequireshighlysophisticated technology to re-structure RF signal quality, with speed- handovers appear more frequently which again add on to the overall quality of service of the end to end system. Therefore, for high speed trains new technologies are needed to combat the challenges of velocity.Automatic frequency correction (AFC) is used in Huawei GSM-R solution to resolve the challenges caused by the Doppler frequency shift, highly sophisticated handover algorithms are used to enable smooth handovers even in high speed situations. To further reduce impact to QoS by handovers, Huaweis distributed BTS allows tocompletelyavoidhandoversacrossmanyBTSsites,thereforeeliminatinganyQoSimpactcausedbythe handovers for a signifcant extent of the network. These technologies have proven their potential on railway lines like the Shanghai maglev line which is operating at speeds of 430km/h. In China, Huaweis high speed GSM-R solution is applied on the Guangzhou-Shenzhen railway line a CTCS level 3 (coherent to ETCS L2) line operating at 350 km/h and as well as a number of other lines operating at similar speeds.Comprehensive IOT CoverageValidated high speed coverageFull redundancy solutionGSM-R plays an important role as bearer service for ETCS L2 data. Highest values of reliability are needed to ensurerailwayoperationcanbemaintaineduninterrupted.HuaweisGSM-Rsolutionisdesignedtoensure highestreliabilitythrougha3-tierstrategyinvolvingboardlevel,networkelementlevelandsystemlevel. On board level, 1+1 hot backup modes are applied to all major boards. In addition, software error tolerance technologiesareusedoneveryboard,e.g.failureisolation,fowcontrol,taskmonitor,storageprotection, dataverifcationtonameafew.Atnetworkelementlevel,HuaweisGSM-Rsolutionoffersseveraltypesof nodalbackupoptions.FortheGSM-Rcorenetworkageographicalredundancysuchasdual-homingMSC, Mini-A-Flex, duo-location, SGSN/GGSN pool and 1+1HLR redundancy options are applied to further enhance theoverallnetworkreliabilityandavailability.Theseredundancyoptionsareaperfecttoolavoidingany networkserviceinterruptionsincaseofmajorincidentssuchaslossofacompletesite.Besidesthecore network special focus has been given to the BSC, which for GSM-R is considered a reliability bottleneck. With HuaweisBSChotbackupsolutionthisbottleneckhassuccessfullybeeneliminatedbyutilizingaBSCpool technology. At BTS level, Huaweis co-site double coverage feature is used to ensure high reliability as the BTS creates two cells coexisting within the same site location. If one of the cells fails, the other cell takes over and thus improving overall system reliability dramatically.ReliableMature reliability methodologyProfessionaltoolsareusedtoanalyzenetworkwidesystemreliabilityandassisttodeploythemostreliable networkarchitectureforaGSM-Rproject.Necessaryreliabilityparametersincludingfailuremodes,recovery timeandredundancymodesareconsideredasinputforthetool.Asaresultareliabilityblockdiagramis createdhighlightingkeyfguresforeachoftheinvolvednetworkelementswhichhelpthedesignteamto predict overall system reliability, identify most vulnerable network parts and to improve the fnal networking design.Intherailwayindustry,demandsforbroadbanddataservicesareincreasingtremendously.Forexample, video surveillance and PIS are demanded to improve railway safety and passenger satisfaction. To fulfll these requirements wireless broadband data services are needed. LTE (Long Term Evolution) is seen as the candidate that can fulfll these data requirements and at the same time allow railways to smoothly upgrade from their existingGSM-Rinfrastructure.LTEasthenextgenerationofrailwaywirelesscommunicationtechnologyis studied by many railway bodies and Huawei is strongly supporting these studies. The migration from GSM-R toLTEisseenasanaturalevolutionpathespeciallyconsideringthatthesetechnologiesalreadyco-existin manyconsumercommunicationdevicestoday.Asatrulyglobalvendorinthetelecommunicationindustry, Huawei is a major player in the advanced technologies of GSM and LTE. Based on shared hardware platforms and smart radio site solutions, Huaweis GSM-R 5.0 today supports the evolution from GSM-R to LTE for rail. Huaweis GSM-R single-cabinet core network (eCNS300) adopts the ATCA platform, and it has the advantages ofexcellentperformanceandhighintegration.Moreimportantly,theeCNS300canevolvefromGSM-Rinto LTE thanks to its capability to support not only GSM-R but also LTE. On the other hand, Huaweis dual mode base station BTS3900 supports both GSM-R and LTE.EvolutionalCustomer ReferencesLeading in Incremental Market with Great GrowthAs of Q2 2013, Huawei GSM-R solution was awarded a total of 14,000+km of GSM-R railway lines all over the world. In 2012 alone Huawei achieved 61% GSM-R contracts which made Huawei leader of the incremental GSM-R market share. In China, Huaweis GSM-R market share is 48%.Success Case 1: GSM-R Service for AustraliaAt the end of 2009, Huawei was awarded Australias metropolitan line project, covering more than 700km of rail tracks, including 76 tunnels with a total length of 63km. In this project, Huawei GSM-R solution replaced the existing analogue radio network, and offers better coverage and functionality than the previous analogue system. In addition, Huaweis GSM-R Duo-location BSC, MGW Pool, SGSN/GGSN Pool, BTS TRX N+1 backup are applied ensuring highest reliability and availability fgures for Australia. The distributed Base Station is used for tunnel coverage, and delivers fast and fexible to deploy network coverage. Furthermore, the network was designedinawaytoenablethecustomertosmoothlyupgradetoETCSL2andoperatesonfrequenciesat 1800MHz.Success Case 2: Daqin line - The First Commercial GSM-R Application over GPRS, Now Upgraded to IP Core The Daqin Railway project was Huaweis frst commercial GSM-R application in the line between Datong and Qinhuangdao.Thelinestretchesthroughcomplicatedandhillyterrainwithover30tunnelsandthetotal length of 690km. Huawei was selected as the sole GSM-R supplier for this rail project. In January 2011, the successful migration from a legacy 3GPP R99 platform to a 3GPP R4 platform has been completed in Daqin GSM-R network.Success Case 3: Hada Railway in Northernmost China, carrying CTCS L3/ETCS L2Hada Railway in northernmost China, carrying CTCS L3 (coherent to ETCS L2). The Hada Railway project is a strategic part of the National Eleventh Five-Year Rail Plan. The line stretches between Harbin in Heilongjiang Province and Dalian in Liaoning province with a total length of 895km. The train speed is designed to operate at speeds of 350km/h.SuccessCase4:ShuohuangRailwayWorlds1stLTEApplicationin RailwayShuohuang Railway Worlds 1st LTE Application in Railway: Shuohuang railway is a vital cargo line carrying 250 million tons of coal each year. The customer requirements asked for a network supporting train control, traindispatching,andvideosurveillanceserviceswithinasinglenetwork.Duetoitsvitalimportancethe communicationnetworkisrequiredtodeliverhighestperformanceandreliabilityfigureskeepingoverall profitabilityofthecargolinehigh.HuaweiseLTEsolutionwasselectedtosupportmulti-locomotive synchronizationcontrol,VGCS/VBSfortraindispatchingandreal-timevideosurveillanceforsafeoperation. Inaddition,dualradiocoverageisappliedforincreasedBTSsitereliability.WiththehelpofHuaweiseLTE solution, Shuohuang Railway can beneft from increased transportation capability.Professional, Reliable and EvolutionalHuawei GSM-R SolutionHUAWEI TECHNOLOGIES CO., LTD.HUAWEI TECHNOLOGIES CO., LTD. Bantian, Longgang DistrictShenzhen518129, P. R. ChinaTel:+86-755-28780808