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ZTE to Help Ethiopia TelecommunicationsCorporation Build National NetworkZTE is exclusively developingEthiopia’s nationwide networkto cover 14 major cities inEthiopia, including Addis Ababa, thecapital of Ethiopia. This cooperationmarks ZTE’s continuous success inpenetrating Ethiopia, after reaching anagreement with ETC to help constructIP-backbone network late last year.As part of the agreement, ZTEwill help ETC establish two separatenetworks that will allow ETC to provideNGN and BTS related network servicesby deploying ZTE’s GSM bearernetwork optical solutions. ZTE willplay a role in helping ETC to establishMetropolitan Area Network (MAN)by deploying ZXMP M800 highendoptical transmission equipment,and Access Network by using ZXMPM600, Coarse Wavelength DivisionMultiplexer (CWDM) system withFixed Service Access Gateway (SAG).ZTE’s ZXMP M600 is a highlyintegrated CWDM transmission system,supporting 18 wavelengths and amaximum rate of 2.7 Gb/s. It featuresan open multi-service access model andhigh flexibility in consolidating voiceand data services.Moreover, it can be widely deployedat the convergence and access layersof large-scale metro network, thebackbone, convergence and accesslayers of small to medium sized metronetwork, as well as the private networkof utility infrastructure. With its highdeployment flexibility and largecapacity, ZXMP M600 helps telecomcarriers lower operating cost.“With our state-of-the-art opticaltransmission solution, we believe wecan provide a smooth transmissionroute for Ethiopia’s telecom networkto help them satisfy their customers’demands for multi-service transmissionwithin GSM, CDMA, IP and fixed line.ZTE is committed to playing a keyrole in bolstering Ethiopia’s telecominfrastructure, and in return, boost itseconomic growth,” said Mr. Han Ling,ZTE’s Vice President and GeneralManager, Optical Network Products.(ZTE Corporation)ZTE Achieves Strong Growth for Bearer Network ProductsCustomized network solution meets growing demand in MalaysiaZT E c o n t i n u e s t o r e g i s t e rremarkable growth rate forits bearer network productsaccording to the announcement thecompany made at the recent “ZTEBearer Network Workshop Malaysia2008” held in Malaysia.ZTE bearer network productsinclude IP network products and opticaltransmission solutions. In 2007, its IPnetwork products recorded over 100%growth, with bulk of the sales comingfrom overseas market. At the same time,the optical transmission business alsoregistered sterling record as sales grewby 71% compared with 2006, toppingthe industry by exceeding the overallmarket’s 24% growth.According to the InternationalT e l e c o m m u n i c a t i o n U n i o n -Telecommunication StandardizationSector (ITU-T), Malaysia is one of thefastest-growing telecom markets in theregion, closely following China. Toeffectively penetrate Malaysia, ZTEpartnered with leading key operators inthe country in introducing its innovativeproducts to the local market. ZTE’saggressive efforts in developing andpenetrating international markets,including Malaysia, contributed to thetremendous sales growth of its bearernetwork products.At the recently concluded “ZTEBearer Network Workshop Malaysia2008”, around 100 well-known expertsrepresenting various local telecomoperators including TM, Celcom, TIME,U Mobile, Maxis and DiGi gatheredto discuss network evolution trendsand changes in service demand. Theoperators also recognized ZTE bearernetwork and service solutions as amongthe most reliable in the industry.(ZTE Corporation)ZTE TECHNOLOGIES July 2008

Press ClippingZTE Empowers IPTV CommunityJuly 4, 2008 Source: telcommasia.netMr. Yu Yifang (L), General Manager of ZTE’s Multimedia and Terminal ProductLine, receives the award from Mr. Chen Ruming (R), Deputy Minister of Ministry ofInformation Industry, ChinaOn 1 0 A p r i l 2 0 0 8 , t h ep r e s t i g i o u s “ B e s tC o n t r i b u t o r t o I P T VEcosystem” award wasgranted by the Ministry of InformationIndustry of China to ZTE Corporationfor its outstanding contributions inpromoting the IPTV industry. As shownin the photo, Mr. Yu Yifang, GeneralManager of ZTE’s Multimedia andTerminals Product Line, receives thehonor at the 2008 IPTV World Forumfrom Mr. Chen Ruming, DeputyMinister of Ministry of InformationIndustry, China.ZTE works diligently with carriers,content providers (such as SMGand CCTV), and application serviceproviders to build a strong IPTVecosystem.As a primary member ofC h i n e s e C o m m u n i c a t i o nStandard Association (CCSA),ZTE has taken a leading rolein drafting a number of IPTVstandards, solely or jointly withindustrial partners. Moreover,ZTE is a sponsor of AVS IndustryAlliance of China, which hasdefined an industrial leadingIPTV standard along with AVS-IPTV test schemes.Meanwhile, ZTE continuesto make important contributionsto the global IPTV standardactivities, with its contributionsaccounting for 8% of the totalr e s o l u t i o n s d u r i n g I T U - TFGIPTV research period, and asthe editor on IPTV architecture inITU-T IPTV GSI 2008.ZTE has won the largestmarket share in China (more than50%) with its IPTV “Eye-Will”platform and services deployedby the two largest fixed-linenetwork providers, China Telecom andChina Netcom, in more than fifteenprovinces. It serves more than 800,000end users with residential IPTV services.ZTE also empowers carriers to penetratevertical markets with hotel solution,global surveillance solution, and remoteeducation solution.ZTE has become a significant globalplayer in all telecommunication areas.In particular, ZTE has provided featurerichand cost-effective IPTV solutionsto international carriers in ten countries,including Columbia, Thailand, Belarus,etc.ZTE TECHNOLOGIES July 2008

Third EyeJune 2008, by Loren Zhao and Irene Liu, from market research firm iSuppliJuly 2008ZTE TECHNOLOGIES

Be i n g “ g r e e n ” i s n o tsimply a cost center forb e i n g c o m p l i a n t w i t hregulatory standards orindustry directives. On the contrary, itprovides new and substantial businessopportunities in the global telecommarket. To compete effectively, inthe Tier-1 carrier market, vendorsshould align themselves with theirenvironmentally-aware customers.Environmental IssuesEnvironmental issues includingclimate change, pollution, renewableenergy, conservation, recycling, theexhaustion of natural resources andpublic health concerns are rapidlygaining public awareness. This ispushing governments to followpolicies encouraging renewable energyproduction, environmental technologiesand services.Companies from all industries,including telecommunications, arepreparing for major shifts in publicopinion and increased environmentalregulation by announcing greentechnology programs and innovativeproducts.This special iSuppli report providesan overview of global telecom trendsrelated to environmental issues. In theprocess, the impact on China and theinternational telecom market will bereviewed, including new green businesspractices and products.International Public Policy on GreenInitiativesClimate ChangeThe Kyoto Protocol is an agreementm a d e u n d e r t h e U n i t e N a t i o n sFramework Convention on ClimateChange (UNFCCC). It started inFebruary 2005 and will expire in 2012.Countries that ratified this protocolhave committed to reducing theircarbon dioxide (CO2) emissions as wellas five other greenhouse gases. The2007 United Nations Climate ChangeConference in Bali decided that thefollow-up process to the Kyoto Protocol.The International TelecommunicationU n i o n ’ s Te l e c o m m u n i c a t i o nStandardization Sector (ITU-T) strategyon climate change may soon provide astandardized way to calculate the carbonfootprint of data and telecom equipment.The United Nation’s “Solving theE-Waste Problem” (StEP) initiativewas launched in March 2007. Itorganizes UN organizations, togetherwith prominent members from privateindustry, government, non-governmentaland scientific organizations. It aimsto harmonize world policy, legislativeapproaches, standards and processesfor electronic waste and recycling.StEP sets global guidelines for thetreatment of e-waste and the promotionof sustainable material recycling basedon the European Union’s Waste fromElectric and Electronic Equipment(WEEE) directive.The Green Telecom MarketIn 2007, some major Europeanoperators had already announcedtheir strategies for cutting greenhousegas emissions, including VodafoneGermany, Deutsche Telekom (DT),TeliaSonera, and Telenor. DT viewsclimate change as one of the greatestchallenges facing humanity in the 21stcentury. Although DT does not face anyregulatory/financial risks, DT anticipatesthat Information and CommunicationsTechnologies (ICT) will be included inemissions trading during the post-Kyotophase after 2012, and is making strategicpreparations for this move.Business OpportunitiesiSuppli recognizes that although“being green” represents an additionalcost source for compliance withregulatory or government policies,it also provides valuable businessopportunities for innovative products,services and solutions.Cost savings are the primary driverat present. Improved energy efficiencyCompanies from all industries,including telecommunications, arepreparing for major shifts in public opinionand increased environmental regulationby announcing green technology programsand innovative productsreduces Operating Expenses (OPEX)and increases profits.The second motivation is customerdriven.Environmentally-awareconsumers are demanding operatorsin different countries to go “green”,especially in Europe. Consumerswant green choices from their telecomproviders.Meanwhile, carriers are preparingfor greater consumer awareness ofclimate change issues and looking fornew commercial opportunities in greentelecom services.The third driver is public relationswithin the domestic and global market.Projecting a strong green brand imageZTE TECHNOLOGIES July 2008

HSUPA is the enhanced uplinktechnology specified in 3GPP R6. WithHSUPA, operators can provide moreinteractive and high-speed multimediaservices, such as video conferencing,online games, email, DVD qualityvideo, MMS. These flexible andpowerful services can help telecomoperators improve branding, developmore individual and enterprise users,and increase profits.Technical Principles of HSUPAS i m i l a r t o H S D PA , H S U PAintroduces new physical channelsincluding E-DPDCH, E-DPCC,E-AGCH, E-RGCH, E-HICH andtwo MAC entities, known as MACesand MAC-e. In order to supportfast scheduling function at NodeB, thedecentralized scheduling is moved fromRNC to NodeB. With key technologiesincluding Hybrid Automatic RepeatR e q u e s t ( H A R Q ) , N o d e B f a s tscheduling, 2ms short frame, and multicodetransmission, HSUPA improvesthe uplink service bearing capability andfrequency utilization, greatly enhancingthe network performance.H A R Q : H A R Q i s a n e r r o rcorrecting technology, which can lowerrequirements on wireless channelquality, control uplink interference,reduce transmission delay, and increaseuplink data transfer rate.NodeB fast scheduling: With theintroduction of decentralized fastscheduling at NodeB, user’s datatransmission rate can be scheduled up to2ms, based on channel conditions andcell loads.2ms short frame: In HSUPA both2ms short frame and 10ms frame aresupported. The 2ms short frame lengthallows to minimize Round Trip Time(RTT) in the NodeB controlled HARQ,reducing the fast scheduling responsetime as well.M u l t i - c o d e t r a n s m i s s i o n :E-DPDCH supports multiple frequencyspreading codes from SF2 to SF256,and multi-code transmission like 2xSF4,2xSF2, 2xSF2+2xSF4, etc. By the useof multi-code transmission, HSUPAcan increase the uplink data rate up to5.76Mbps.Constructing a Perfect HSUPANetworkHSUPA with multiple advantages isattracting an increasing level of interest.Combining HSDPA with HSUPA isquickly becoming the most popularUMTS evolutionary choice. HSPAenhancedUMTS network will enablesubscribers to enjoy more diversifiedand exciting services. Therefore, it iscritical to study how to build a HSUPAnetwork or how to upgrade the exitingUMTS network to HSUPA rapidly andat a low cost.HSUPA is usually deployed on topof R99/HSDPA network on the samecarrier, sharing cell resources such aspower and codes with R99/HSDPA. Itis necessary to evaluate the impact ofHSUPA on the existing UMTS system.With patented HSUPA simulationtool, ZTE conducted research on theimpact of HSUPA on the R99/HSDPAnetwork when HSUPA and R99/HSDPAoperate on the same frequency, andconcluded that the introduction ofHSUPA puts higher requirements onthe upgradeability of power resource,baseband processor and other aspects ofNodeB.■ Since HSUPA adds a set of newphysical channels and someMAC entities, it is required thatthe existing base stations can beupgraded to support HSUPA, toprotect initial network investmentwhile quickly responding to marketrequirements.■ HSUPA adds three downlinkphysical channels includingE-AGCH, E-RGCH, E-HICH,which all consume downlinkcode resources. With the increaseof the number of users to accessthe HSUPA network, there willbe a shortage of downlink coderesources and new carriers should beintroduced to bear HSPA traffic.■ According to the simulation results,one E-AGCH consumes 5% to 7%of downlink transmission poweroutput in a cell, and one E-HICHor E-RGCH consumes about 5% ofdownlink transmission power output,which will exert a certain influenceon the R99/HSDPA downlinkcoverage and capacity.It can be seen from the above analysisthat, if R99, HSDPA and HSUPA aredeployed on the same carrier in theinitial phase of network construction,the baseband processing unit of NodeBshould be able to be upgraded tosupport HSUPA key technologies andalgorithms, and the amplifier with highertransmit power can be deployed whennecessary. If HSDPA and HSUPA aredeployed on an independent carrier, theNodeB should be able to be upgradedto support multiple carriers and HSPAfunction. Using high performance andscalable UMTS system equipmentto build 3G network can protect theinitial network construction investment,reducing CAPEX and OPEX.ZTE’s HSUPA SolutionA s a l e a d i n g p r o v i d e r o ftelecommunication solutions inindustry, ZTE launched cost-effective,h i g h p e r f o r m a n c e e n d - t o - e n dHSUPA solutions in 2006. It is worthmentioning that ZTE’s self-developedRadio Resource Management (RRM)algorithm solves the mutual influenceproblem that occurred during HSDPA/UPA simultaneous transmission at thehighest possible rates.Taking HSUPA into consideration,ZTE’s UMTS system was designedZTE TECHNOLOGIES July 2008 13

Tech Featureto support HSUPA and HSDPA. Thebaseband processing board in NodeBhas special HSUPA processing module,which can handle HSPA and R99services simultaneously, guaranteeinglarge HSPA throughput. Only a softwareupgrade is needed to support themigration path from HSDPA, to HSUPAand even HSPA+.ZTE, based on its independentlyd e v e l o p e d D o h e r t y a n d D P Dtechnologies, has developed 20W,40W, 60W serial Power Amplifier(PA), meeting the requirements ofR99/HSDPA/HSUPA multi-carriernetworking. Meanwhile, the highefficiency PA can reduce power costsby 50% compared with traditional basestations.To meet the development needs ofUMTS networking, ZTE’s UMTS basestations support smooth expansionfrom 1 carrier to 4 carriers, which canhelp realize flexible R99 and HSPAnetworking on a single carrier, dualcarriers or multiple carriers.The 3GSS system, ZTE’s HSPAsimulating platform released in 2006,can provide diverse HSUPA schedulingalgorithms and support different HSUPAthroughput configurations. It canimplement performance simulation ofvarious application scenarios like singlecarriernetworking or multi-carriernetworking, providing the theoreticalbasis for HSUPA network deployment.ConclusionAttracted by the high performance ofHSPA, more and more mobile operatorsare deploying or planning to deployHSUPA/HSDPA network to deliverquality services to subscribers anytimeand anywhere. ZTE, specializing inproviding end-to-end solutions foroperators, has launched the commercialversion of HSUPA system and HSUPAterminals, helping operators buildfuture-oriented 3G network.ZTE Demos 5.76Mbit/s HSUPAFebruary 12, 2008ZTE is demonstrating the company’s newly IOT tested 5.76Mbps HighSpeed Uplink Packet Access (HSUPA) network equipment at the GSMAMobile World Congress Barcelona 2008, Spain. This follows the successfullaunch of ZTE’s 7.2Mbps HSDPA/2Mbps HSUPA network equipment atChina’s PT/Wireless & Networks Comm exhibition in October 2007.HSUPA is a UMTS uplink enhancement technology introduced in 3GPPR6. It has two phases: in phase I the maximum uplink data throughput is1.9Mbps; in phase II the maximum data throughput is up to 5.76Mbps.HSUPA technology increases capacity and throughput, and improvesspectrum efficiency as well, satisfying the growing demand for mobileservices in wireless broadband networks.(www.lightreading.com)Replacing Copper with FiberWh e n f i x e doperator’s voiceb u s i n e s s i sdeclining, bothChina Telecom and China Netcom,China’s fixed-line operators,adopt the strategy of developingbroadband services. With theapproach of 3G, China is set torestructure its telecom industry. Theexisting fixed-line operators arepressed to build broadband accessnetworks for future initiative.Transmission bandwidth oncopper lines is in inverse proportionto transmission distance. Thus,when optical broadband accessnetwork is being built, the coppercables will be reduced in lengthor avoided, that is, optical nodesshould be placed as close to endusers as possible. This is also called“replacing copper cables withoptical cables”.China Telecom takes “replacingcopper cables with optical fibers” asan important measure to transformits network and improve its networkoperation and maintenance quality.This marks the change from thefocus on narrowband voice basedon copper cables to focusing onbroadband data based on opticalcables.The actual application ofreplacing copper cables with opticalfibers is fiber to the x (FTTx).According to where fiber ends,FTTx can be further categorizedinto: fiber to the home (FTTH),fiber to the building (FTTB), fiberto the node (FTTN). FTTH, whichdeploys an optical network unit(ONU) in the end user’s living oroffice space, is the closest to theend user among all FTTx solutions,and is the ultimate solution tobroadband access.14 July 2008 ZTE TECHNOLOGIES

Building Broadband OpticalAccess Network with CWDM—ZXMP M600 Application AnalysisLuo LairongUsing CWDM for Optical AccessNetworkThere are two solutions for replacingcopper with fiber: using EPON ormoving down Point of Presence (POP)like MSAG, MSAN and DSLAM. Inthese two solutions, the uplink traffic ofEPON or POP increases greatly, and thebandwidth of the corresponding uplinkinterface is usually FE or GE.The existing MSTP network isinsufficient to process large-granule GEservice, and with the increase of accessbandwidth, the traditional STM-1/4/16MSTP ring bandwidth is obviouslyinadequate for use. A good metaphor isthat roads are available between townsand villages, so the bottleneck roadsbetween towns and counties also need tobe reconstructed.The low-cost CWDM equipment isthe best way to reconstruct and upgradethe existing transmission network accesslayer.Figure 1 illustrates using CWDMto build the bear network of thetransmission network access layer. Afterreconstructing the network with CWDMequipment, the existing GE and FEservices are converged and carried viasome CWDM wavelengths, while theoriginal MSTP ring services are carriedvia a CWDM wavelength. The solutionhas the following advantages:■ IP over WDM, complying with thenetwork evolution trend, simplifiesthe network hierarchy, avoidswasting resources at the SDH layer,and meets urban user demands forvarious services by utilizing thetransparent CWDM and DWDMtransmission.■ The transmission network accesslayer, built with high performancecostratio CWDM, features lowinitial investment and smoothupgrade. It can carry the originalMSTP ring services via a CWDMwavelength, making full use of theoriginal equipment.■ With the complete protectionmechanisms and mature carrierclassapplications of WDM network,the solution can meet urban user’sdemands for high reliability andQoS, and has natural advantages incarrying Storage Area Networking(SAN) services in urban areas. It isan integrated platform for carryingNGN/IPTV/3G/VIP services.Figure 1 Transmission network for fiber replacement solutionIntroduction to ZXMP M600ZTE’s independently developedCWDM product, ZXMP M600, in strictcompliance with CWDM internationalstandards. It has the followingcharacteristics:High system integration■ An Optical Terminal Multiplexer(OTM) node formed by a CWUbox (1U high) can implement theZTE TECHNOLOGIES July 2008 15

Tech Featurebidirectional transmission on 4+1wavelengths. +1 refers to 1310nmOptical Supervision Channel (OSC).■ An Optical Add/Drop Multiplexer(OADM) node formed by a CWUbox (1U high) can implement thebidirectional transmission on 2+1wavelengths.■ A C W U b o x ( 6 U h i g h ) c a nimplement the bidirectionaltransmission on 18 wavelengths atmost.Powerful transmission andmultiservice accessZXMP M600 supports a transmissioncapacity of 45Gb/s (2.5Gb/s×18), thehighest in the industry. By performingO/E/O wavelength conversion, itconverts the accessed optical signals intoG.694.2-compliant wavelength signalsfor output. It can access services ofdifferent rates, including STM-1, STM-4and STM-16, or services of continuousrates (12.5Mbit/s-2.7Gbit/s). It can alsoconverge multiple services, for example,converge 2×GbE into STM-16.Flexible networkingIt supports multiple networkingapplications including chain, ring andtangent ring. With a modular structure,it provides modular upgrade path andsupports flexible add/drop of 1 to 18wavelengths.Powerful protectionIt provides optical multiplex section1+1 protection and optical path 1+1 ringprotection.Complete supervision informationtransmission functionIt provides two pairs of OSCinterfaces for 100Base-FX applicationsand two 10/100M Ethernet interfaces.The ETM board can also offer theelectronic supervision channel. The OSCcan transmit signals over a distance of80 km.Flexible box designA CWU is 1U high (44 mm) and has6 board slots. It can be mounted on deskor installed in the 19-inch IEC/ETSIcabinet at front or back. A CWE is 6Uhigh (265.9 mm) and has 18 board slots.It can be installed in the 19-inch IEC/ETSI cabinet at front or back.Multiple power supply modesA CWU box supports -48V/-60V DCpower supply or 220V (50Hz)/110V(60 Hz) AC power supply. A CWE boxsupports -48V/-60V DC power supply.Each box provides two power boards for1+1 hot backup, ensuring reliable powersupply of the system.Convenient maintenanceExcept the power and NCP boards,the boards for CWU and CWE supportmixed insertion, hot swap, replaceableS F P o p t i c a l m o d u l e a n d f r o n tinstallation. The box fans support hotswap and front installation.original MSTP network cannot meetsuch demands. After careful evaluationsand tests, the ZXMP M600 waschosen for the transmission networkreconstruction. In Figure 2, CWDMrings are built for county network 1 and2, the original MSTP network transmitsservices via the CWDM network, andnew services from DSLAM are directlyconverged to the local DWDM networkvia CWDM wavelengths. The networkhas been running smoothly since theoperation.When fixed operators are carryingout the fiber replacement strategy,CWDM becomes an important meansto solve the bandwidth bottleneck inthe transmission network access layer.ZTE’s CWDM equipment ZXMPM600, featuring large capacity, highFigure 2 ZXMP M600, applied to transmission network reconstruction in a Chinese countyZXMP M600 ApplicationAs Figure 2 shows, ZXMP M600is applied to the transmission networkreconstruction for the fiber replacementproject in a Chinese county. In thisfiber replacement project, some accessnodes in county network 1 and 2 needto deploy IPTV services, and use GEas DSLAM uplink interface, but thesystem integration, multi-service access,high performance ratio, has found wideapplications in the transmission networkreconstruction of various operatorssuch as Shanghai Telecom, PCCW,Zapp Portugal and Wharf T&T. In aword, it has become the best choice foraccelerating the installation of fiber inthe access network.16 July 2008 ZTE TECHNOLOGIES

Protection Technologies for PacketTransport NetworkHe TingzongDevelopment Trend of TransportNetworkIP has been the first choice foroperators to constantly roll outnew services and enhance theircompetitiveness. New servicessuch as 3G, WiMAX, triple play, HighDefinition Television (HDTV), Videoon Demand (VoD) and storage servicesare all delivered over IP-based networkarchitecture. As the fast-growingcarrier-class IP services pose higherrequirements for existing transportnetworks, Packet Transport Network(PTN) will become the developmenttrend.Mainstream PTN TechnologiesTwo mainstream technologies areavailable for PTN: Transport Multi-Protocol Label Switching (T-MPLS) andProvider Backbone Transport (PBT).T-MPLST-MPLS is a connection-orientedpacket transport technology developedon the basis of IP/MPLS. It discardsthe complex control protocol stackdefined by IETF, simplifies the dataplane, removes unnecessary forwardingprocesses and connectionless featuresthat are independent of transport,and adds layered transport networkmodel, protection switching andOAM functions. Moreover, it definesa multitude of adaptation interfacesfor client signals, enabling transportresource management and automaticservice configuration through theAutomatic Switched Optical Networks/Generalized Multi-Protocol LabelSwitching (ASON/GMPLS) controlplane.PBTPBT is a technology developedon the basis of Ethernet switch thatsupports L2/L3/L4 processing. Itenhances manageability and protectionfeatures, adds narrowband serviceemulation and clock functions, andoffers powerful multi-service supportcapability. Furthermore, it disablestraditional Ethernet functions such asMAC address learning, broadcastingand Spanning Tree Protocol (STP), anduses the management plane (or controlplane in the future) to have full controlover the Ethernet forwarding table.ZTE TECHNOLOGIES July 2008 17

As an emerging carrier-classtransport network, PTN is beingperfected in technologies andstandards, which will drive thegrowth of the relative networkprotection technologiessharing), supporting unidirectional,bidirectional, revertive and nonrevertivemodes.The 1:1 bidirectional trail protectionuses the Connectivity Fault Management(CFM) OAM mechanism instead of theAPS protocol. The protection switchingcan be triggered as soon as trail failure,such as alarm indication signal (AIS)and remote defect indication (RDI), isdetected at either side.For the 1:1 bidirectional trailprotection in load sharing mode, whenworking and protection connectionsare in normal operation, the trafficis transmitted simultaneously overworking and protection connections; inthe event of a certain connection failure,the traffic can only be transmitted overthe normal connection.Figure 3 Ring protectionRing protectionAt present, T-MPLS can supportT-MPLS Shared Protection Ring (TM-SPRing) protection, but PBT does notsupport ring protection.The T-MPLS ring protection (seeFigure 3) requires the completion time forprotection against a single failure shouldbe less than 50ms assuming a referencenetwork with a 16-node ring and lessthan 1200km of transmission distance.Similar to SDH Multiplex SectionShared Protection Ring (MS-SPRing),T-MPLS ring protection providestwo protection modes: wrapping andsteering. The wrapping mode is similarto normal SDH MS-SPRing, and thesteering mode is similar to SDH crossoceanprotection switching.■ Wrapping modeWhen a networknode detects a failure,the adjacent nodesa t t h e t w o s i d e sof the failure wills e n d a s w i t c h i n grequest through theAPS protocol to theopposite nodes inthe far-end and near-end directions respectively. When thenodes receive the switching request,the traffic transmitted towards thefailed span is switched to the oppositeprotection connection. After the failureis cleared, the traffic returns to theoriginal working connection.■ Steering modeWhen a network node detects afailure, a switching request will be sentthrough the APS protocol to all nodesin the ring. For the affected traffic, eachsource service node performs switchingfrom working to the opposite protectionconnection. After the failure is cleared,the traffic returns to the original workingconnection.ConclusionAll protection technologies forPTN mentioned above can meet therequirements for carrier-class protectionswitching of less than 50ms. T-MPLSoffers relatively more completeprotection technologies than PBT. Asan emerging carrier-class transportnetwork, PTN is being perfected intechnologies and standards, which willdrive the growth of the relative networkprotection technologies.ZTE TECHNOLOGIES July 2008 19

Tech FeatureCreating an ICT Service OperationPlatformLuo YingqunIC T i s t h e c o m b i n a t i o n o finformation and communicationtechnologies, emerging afterthe Internet convergence withtelecom networks. It improves the workefficiency of enterprise, individual andgovernment users.The concept of ICT originatedfrom British Telecom (BT), whichdefined the core value of ICT serviceas “with the convergence of CT andIT, ICT promotes fast informationexchange transcending space andt i m e ” . I T f o c u s e s o n t h e w o r kflow or business process while CTfocuses on information exchange andcommunication.W h e n e n t e r p r i s e c u s t o m e r sincreasingly require seamless connectionbetween the Internet and telecomnetworks, they have an increasing needfor service providers who can offera reliable package solution coveringnetwork communication, IT, andbusiness process management system.ICT service does not provideenterprises with a simple communicationpipeline or information channel, butan integrated service that combinesnetwork communication, manageableservice, wireless data and voice,videoconference, application hosting,software and system maintenance,security, and outsourcing. It can bedivided into three levels: networkservice, IT application, and consultationservice.With the rapid development of IPtechnology, new competitors enter thetelecom service market successively;revenue from the traditional voicebusiness declines or even drops; thetraditional operators, especially thefixed network operators, have to seek anew service development path. Whentelecom operators extend their servicesinto IT, their powerful telecom servicecapabilities, steady income, and globalcustomer service branches will makethem the best providers of ICT service.As ICT is coming of age, operators canbuild an ICT service operation platformfrom the following four aspects:Building a Carrier-Class OperationPlatformFor telecom operators, service iscritical while a manageable operationplatform is basic in providing enterprisewith ICT services. In the traditionalcommunication field, there are someoperating indices such as serviceresponse time, service interruption time,20 July 2008 ZTE TECHNOLOGIES

fault alarm, and automatic recovery.Therefore, telecom operators need toconsider how to design the IT systembased on telecom technologies, how tosupport large numbers of users, how torealize mass data storage and access,backup and disaster recovery, how toguarantee the safety of user data, andhow to unify service standards.ZTE proposes building ICT servicemanagement platform based on theService Delivery Platform (SDP). Itturns the vertical development modelto the horizontal mode, allowinglarge-scale customization of ICTproducts through the standard productarchitecture and universal middlewareplatform as well as integration betweenservices through the ApplicationProgram Interface (API). In this way,the operational performance, servicesecurity, and service reliability of theplatform can be ensured.Bringing Bandwidth Advantage intoPlayWhen launching integrated telecomservices, operators, with their bandwidthadvantage, can bundle ICT service andbroadband access into a sales package,attracting broadband users with ICTservice and driving ICT service saleswith broadband.To meet this end, ZTE bringsforward two service modes: the SaaSservice mode and the hard terminalservice mode. In the SaaS servicemode, enterprises can use the serviceafter a software installation. This modesatisfies requirements of mini-sizedand entry-level enterprises. In the hardterminal service mode, a hard terminalis deployed at the enterprise side;the service can be maintained by theenterprise and be managed and operatedby the operator. It is an effective methodfor operators to retain customers aswell as enter large and medium-sizedenterprises.Selecting Simple and PracticalServicesDifferent customers, especiallyenterprise customers, have differentrequirements in development phases.The operator, when planning service,should subdivide the industry and thecustomer market, and select simple andpractical services after fully consideringits current manpower status.A c c o r d i n g t o e n t e r p r i s edevelopment features, ZTE sums upthree requirements of the enterprise:basic, development and managementrequirements. The basic requirement ofthe enterprise is establishing a stable andsecure fundamental communicationsenvironment, which can help to extendsales channels and cut down officecosts. Its development requirement isestablishing an office environment tofacilitate smooth internal and externalcommunication so that satisfactoryservices can be provided to customers.When an enterprise develops to acertain degree, it requires solutions toits business operation problems witha reference to industrial standards orcustomized service, to realize smoothmanagement.Based on these requirements, ZTEhas launched systems like enterpriseservice gateway, security gateway,online PC maintenance, intelligentoffice, sales expressway, CRM, andERP interface platform. These productshave a simple interface and is easy tooperate and convenient to maintain.Choosing Stable PartnersEquipment manufacturers, ITmanufacturers, and service supportersare indispensable links along the ICTservice value chain. Every value chainmember must consider how to maintainlong-term stable cooperation. For theoperator, selecting a partner with bigcomprehensive strength is important.As a leading telecommunicationsequipment provider in the world, ZTEhas a deep understanding of telecomservice. ZTE owns a carrier-classplatform and a powerful IT team, andis transforming from a traditionaltelecom equipment manufacturer toa professional ICT manufacturer thatcan provide one-stop package spanningfrom platform and telecommunicationsequipment to software and service. ZTEwould like to undertake risks togetherwith operators, to lead the developmentof the ICT service industry.Around the world, the connectedeconomy has greatly changed businessmode of the traditional telecom industry,and telecom operators are adoptingstrategies to transform into integratedinformation service providers. A batchof worldwide famous operators such asAT&T, BT and FT, have applied ICTservice in numerous fields includinggovernment, energy and manufacturing,taking ICT service as a new revenuesource.ZTE entered the ICT service fieldin 2006. The company has found outa path for development and formedits unique advantages in the highlycompetitive environment by virtueof its rich experience in telecomt e c h n o l o g i e s a n d I T s y s t e m , acomplete and balanced product line,and a powerful and effective marketplatform. ZTE now keeps good growthmomentum. In the future, it willhelp operators fully utilize telecompipelines including transmissionnetwork, IP backbone, core network,access network (wired and wireless)and terminals to develop informationservice covering various aspectssuch as individual/home, enterprise,government, education, and medicaltreatment. It will enable operatorsto integrate the value-added serviceindustry chain and exploit the ICTservice market.ZTE TECHNOLOGIES July 2008 21

Case StudyA CDMA Network Tailored toLocal Conditions in NepalKong Jia, Xiang DongshengNepal Telecom is the largestt e l e c o m m u n i c a t i o n soperator in Nepal withover 2 million mobilesubscribers.In October 2004, ZTE was chosenby Nepal Telecom as the exclusiveprovider of a CDMA network thatcovers the entire country. Up till now,it has developed about 370,000 CDMAsubscribers. The network providesservices like voice, short messages and1X data.Tailored Transmission SolutionsSituated at the southern foot of theHimalayas, the Kingdom of Nepal isalso known as a mountainous countrythat offers a varied topography. Theadverse geographical conditions makeit very difficult to build and run stablycommunications network in Nepal.Various transmission solutions shouldbe worked out according to localconditions.Nepal Telecom adopted A andAbis interface transmission solutionsprovided by ZTE’s CDMA system, toreduce its transport cost:■ In the densely populated valley citiessuch as the capital Katmandu, E1/T1cables and fiber transport featuringstable performance and low priceswere used.■ In the extensive rural areas andremote factories and miningareas, the flexible and convenientmicrowave transport was adopted.■ In the precipitous mountain regionsof plateau, satellite transport wasused for quick and wide coverage.Transport solutions customized forlocal conditions help to achieve fullcoverage at the lowest cost.Micro Base Station and Solar EnergyThe main requirements of NepalTelecom are quick low-cost networkdeployment and high stable networkperformance.Considering the mountain areaswhere the terrain is diverse and powersupply is unavailable in some parts,Nepal Telecom chose to use a largequantity of ZTE’s micro base stationswith small capacity and wide coverage,and solar energy in some areas. ZTE’smicro base stations feature small size,light weight, low power consumption,convenient installation and widecoverage. They support various transportmodes and are resilient to adverseoutdoor environmental conditions.The solar power supply solutionsatisfies the power requirement of microbase stations without deploying powercables. Moreover, the solar powersystem, featuring short constructionperiod, long life span and no pollution,effectively lowers operational costs forNepal Telecom. The use of micro basestations effectively saves the costs oftransport, engineering and maintenance;fulfils the operator’s goals of fastnetwork construction at optimum costand wide coverage; and solves thedifficulty of voice communications inhigh mountain areas.Rich Services for TouristsNepal is well known as one of thecenters in the world for mountaineeringexpeditions. Mount Qomolangma,famous for its height, is located at theSino-Nepal border. The sublime sceneryof snow peaks attracts tourists from allcorners of the world.To cater to the requirements ofnetwork coverage and mobile services,Nepal Telecom implemented ZTE’sCDMA2000 1X integrated solutiontailored to the terrain features ofthe snow mountain scenic area. Thenetwork, launched in July 2005, enablesthe operator to provide voice, intelligentnetworks, high-speed data and abundantCDMA wireless value-added services,completely satisfying the requirementsof tourists from different countries andenriching their service experience.22 July 2008 ZTE TECHNOLOGIES

All-Service Operation,All-IP Interconnection—An Introduction to the ETC Project in EthiopiaWu Guangwei, Zhang ZhihaoEthiopian Telecommunications Corporation(ETC), founded in 1894, has a timehonoredhistory. As one of the earlieststate-owned enterprises in Ethiopia, itis an integrated GSM/CDMA/PSTN operator. Atpresent, ETC has 1.1 million mobile subscribers,800,000 fixed line subscribers and 30,000 Internetsubscribers, with a huge space for development inlight of a population of over 70 million in Ethiopia.In an attempt to cope with an expected increaseof over 500,000 returned overseas subscribers, whowould attend the Ethiopia Millennium Celebrationon September 11, 2007, and to solve the problemof traffic congestion in current network, with strictauditing from a consulting firm, ETC decided toadopt the Millennium Solution, exclusively providedby ZTE, and the Turnkey construction model. Thewhole network was officially put into commercial usewithin less than 5 months from the end of April 2007,when the contract was signed, to September. Thenetwork operates stably, and has successfully passedthe heavy traffic test in the Millennium Celebration,and won acclaim from ETC.Based on the successful cooperation on theMillennium Project and by its profound understandingof ETC’s future plan, ZTE was awarded the Phase2 expansion project to provide a future-oriented,ZTE TECHNOLOGIES July 2008 23

Case Studyintegrated GSM/CDMA/NGN solutionfor ETC, among which the total capacityof the GSM network exceeds 5 millionlines. In this project, ZTE aims toachieve all-service operation and all-IPinterconnection, helping ETC constructa future-oriented convergence networkand service innovation environment andprovide quality network service and richmultimedia services for end users.V3-Based Unified HardwarePlatform Helps ETC Achieve All-Service OperationAll-IP interconnection is a generaltrend of the development of corenetworks. The IP technology adoptsthe connectionless operation tosimplify signaling and overcome theissue of complex node equipment,which can bear all existing servicesincluding voice service while greatlyreducing the network constructioncost. The IP transformation is alsoa service convergence requirement.At present, except the traditionalcircuit switched voice services, othertelecommunications value-addedservices are all based on IP protocol.The IP transformation of IMS-basedmobile networks has become a generaltrend. The ETC project in Ethiopiaadopts the SIP-I protocol to enablethe interconnection among differentGSM/CDMA/NGN networks. This isthe first large-scale commercial use ofall-IP networking in the communicationindustry.As an all-service operator, what ETCconsiders most important is how tooperate all services, which inevitablyrequires complete fixed-mobileconvergence in terms of networks andservices. With the development andapplication of an architecture, whereswitching is separated from controlin mobile and fixed networks, mobileSoftswitch and fixed NGN will finallybe able to deliver VoIP and multimediaservices through the IMS architecture.T h e I M S - b a s e d f i x e d - m o b i l econvergence core network can providenot only a unified and powerful serviceengine for various access networks,but also an open service environmentto meet the requirements for seamlessroaming of terminals in differentnetworks and to truly achieve one-pointaccess to all services.With the above considerations, ZTEsupplied ETC with GSM/WCDMA/CDMA/NGN core network equipmentbased on a V3-based all-IP unifiedhardware platform and the relative all-IPsolutions in the Phase 2 contract.The innovative V3-series all-IPunified platform developed by ZTE canbe shared by WCDMA/CDMA2000/TD-SCDMA/NGN core networkequipment and radio access products,which effectively reduces R&Dinvestment and maintenance costs.At present, ZTE’s mobile Softswitchproducts based on the V3-series all-IP unified platform have been serving200 millions subscribers across theworld. Their stability and reliabilityare fully verified. The V3 series all-IPunified platform offers the followingadvantages:■ General-purpose boards with higherreliability, facilitating the evolutionto all-IP network;■ Smooth evolution to IMS bysoftware upgrade, maximallyprotecting the operator’s investment.ALL-IP Transformation of MobileNetworksT h e t r a n s f o r m a t i o n f r o m atraditional GSM/CDMA networkto an all-IP mobile network is anarduous and complicated project.The large-scale commercializationof an all-IP mobile network and thefast deployment of a competitive andhigh-quality all-IP network requirecomprehensive considerations in termsof service network, core network, datacommunication network, transmissionnetwork, access network, etc. It isalso an all-round test for the multipletechnology control capabilities ofoperators and suppliers. With itsprofound accumulation in the mobileand IP fields, ZTE provides a completeall-IP mobile network transformationsolution for mobile operators, helpingthem build all-IP integrated servicesnetwork and maximize the profits oftheir mobile network architecture.Through meticulous deploymentand planning, ZTE divides the all-IPtransformation of a mobile network intothe following three steps:Step 1: Achieve IP transformationof the core network by fully using thecore network product series based onmobile Softswitch architecture. This IPtransformation is not accomplished inone move. In the transformation fromTDM to IP, ZTE provides a meticuloustransition scheme to guarantee smoothevolution, effectively protecting theoperator’s investment.Step 2: Achieve IP transformationof the access network and implementunified access to 2G/3G networks.Step 3: Achieve smooth evolutionof the core network to IMS/FMC andprovide rich access modes includingWiMAX.ConclusionThe success of the Phase 2 GSMproject for ETC further consolidateslong-term strategic partnership betweenZTE and ETC. In April 2008, ZTE andETC signed a supplementary contractfor 1.2 million-line GSM core network.So far, the total capacity of ZTE’sGSM networks deployed worldwidehas exceeded 6 million lines. ZTE willcontinue to cooperate with ETC, aimingto supply a total of over 10 million linesof mobile core network equipment.24 July 2008 ZTE TECHNOLOGIES

Engineering ServicesZTE Helps TATA Swap CDMA Network inHyderabad, IndiaGao LingyunHyderabad, the fifth largest city in India and capital of the state ofAndhra Pradesh, is located in the middle of India. With an area of298.5 square kilometers and a population of 4.27 million, it is themain north-south traffic artery of India.Research In Motion (RIM), TATA Teleservices Limited (TTL), Airtel andVodafone are major carriers in the telecom market of Hyderabad, taking up 90%of market shares. The original CDMA network in Hyderabad is TATA’s firstCDMA network in India that boasts a strong subscriber base. Before the swap,the network had over 200 Base Transceiver Stations (BTSs), up to 800,000subscribers, and the traffic as high as 24,000 Erl in busy hours. The majorproblems with the network are frequent call drops, and occasional call failurescaused by too many congested BTSs. In order to solve the problems in thenetwork, TATA decided to cooperate with ZTE in rebuilding the CDMA networkin Hyderabad due to the excellent performance of ZTE products and their allroundservice.ZTE TECHNOLOGIES July 2008 25

Engineering ServicesPreparations for Network SwapSmooth cutoverAfter the detailed discussion withTATA on how to swap and replacethe original network, ZTE’s networkplanning and optimization project teamproposed a secure network cutover plan.Before the official cutover, the projectteam conducted tests and analysiswork on no load, 70% load and busyhours one after another, carried out apre-cutover of the whole network, andachieved a good result, which gaveTATA full confidence in ZTE’s finalcutover plan. It took only one nightfor the project team to successfullyswap out all 204 BTSs in the originalnetwork and accomplisha smooth cutover withoutany impact on existingsubscribers.Thorough optimizationAfter the cutover, theproject team carefullyanalyzed the problemsoccurring in the originalnetwork and workedout solutions to them.Within two weeks afterthe swap-out, the specialoptimization team madea thorough optimization of the network.They used special tools, and it took themonly two days to finish the optimizationof over 40,000 adjacent cells in thenetwork. The network performanceindexes are significantly improved. Inparticular, the call drop ratedecreases by 40%. Hence, thesubscribers’ complaints aboutfrequent call drops are betterhandled than previously.Capacity expansionplanningIn an effort to solve theproblem of call failure in busyhours, engineers from ZTE andrelevant staff in TATA carefully studiedthe causes, divided the planned BTSsites into different levels according tothe information provided by TATA andthe complaints from subscribers, andgave priority to planning and cuttingover of the BTS sites in key areas.As for the problem of heavy trafficand serious congestion in Hyderabad, ifnew BTS sites are chosen at the nearbyplaces to share the traffic, the spacingbetween the sites is too small to resultin a big waste of resources; if carrierfrequencies are added to the originalBTSs, too many inter-frequencyhandovers will be performed. To suitlocal circumstances, ZTE deployed theTable 1 A comparison of KPI before and after the network swap-outKPIOriginalBSC1NewBSC1BTS type with 4 carriers and 6 sectorsper rack, which can reduce the numberof congested BTSs and bad cells byover 80% while increasing total trafficby 20%.On the New Year’s Day of 2008,when the peak traffic for a singleBase Station Controller (BSC)reached 19,000 Erl, TATA’s CDMAnetwork still ran smoothly, whereasthe networks of other operators werealmost paralyzed by the shock of thelarge traffic. So far, ZTE has helpedTATA basically solve the problem ofcall failure in busy hours.Improved Network QualityIn the first half of 2008, the projectteam keeps improving networkperformance indexes through dailyoptimization work. With the increaseof new BTSs that are put into service,TATA received less network complaintsfrom subscribers. In terms of keyperformance indicators (KPI), the newnetwork has distinct advantages over theoriginal one (see Table 1). In addition,ZTE has also built profound friendshipand trust with TATA.In the 2008 annual network qualityappraisal conducted by third-partyassessment institutions, TATA’s CDMAnetwork built in Hyderabad scoredhigher than its rivals, ranking first inOriginalBSC2NewBSC2OriginalBSC3NewBSC3Erlang Usage 10562.4 10920.6 5582.03 5588.8 11185.5 11733.6Call Success Rate 97.94% 98.44% 94.79% 98.94% 98.03% 98.75%Call Originating Success Rate 98.15% 98.39% 94.50% 98.45% 98.18% 98.30%Call Terminating Success Rate 96.92% 99.80% 94.73% 99.77% 96.55% 99.73%Call drop rate 0.54% 0.29% 0.40% 0.26% 0.48% 0.30%quality. TATA expressed its appreciationto ZTE’s network planning andoptimization project team, and highlyrecognized their technical expertise andprofessional accomplishment.26 July 2008 ZTE TECHNOLOGIES

HandsetsIntroduction toGoTa TerminalsZhou Zhuming, Ling YongGo T a t e r m i n a l s a r etrunked radio terminals,independently developed byZTE, that enable abundantand professional trunked radio services.Since 2003, ZTE has developed severalgenerations of GoTa terminals, whichare applied to various fields in radiotrunked communications and satisfy therequirements of different users.Based on different market segments,ZTE clearly defined two developmenttrends for GoTa terminals: professionalGoTa terminals and consumer GoTaterminals.Professional GoTa TerminalsWith its experience accumulated indeveloping ordinary consumer handsets,ZTE has launched several professionalhand-held terminals, offering multiplechoices to GoTa users.G600 seriesThe G600 series is waterproof,dustproof and shockproof to theIP54 standard, meeting the trend ofItem Professional GoTa Terminal Consumer GoTa TerminalAppearance Large size, similar to an interphone Small and portable, similar to a CDMA handsetIP GradeFunctionalitiesTarget UsersReferencesWaterproof and dustproof (IP54)Vibration resistance conforms to the U.S. militarystandardFull GoTa functionalitiesEnterprise users such as frontline workersin a complicated and changeable workingenvironmentGovernment departments such as military, policeand security forcesUsers that have the “analog to digital conversion”requirementsTETRA-based private mobile radio handsetsProfessional iDEN-based public access mobileradio handsetsNo requirements for any resistance against water,dust and vibrationSimplified GoTa functionalitiesSupport user-defined groupsEnterprise users having no special requirements forhandset application environmentFleet users working at the management levelTrend-oriented consumersCommon iDEN-based public access mobile radiohandsetsZTE TECHNOLOGIES July 2008 27

Handsetsin the European market. With the shapeand style customized for Europeanoperators, it incorporates the GoTatechnology and delivers professionaltrunking functions.Figure 1 G600 candybar terminalprofessional trunking communication.Its target users are government agencies,public institutions and enterprisesthat need trunking as well as voicecommunications.With candybar style, reliable qualityand complete functions, the G600terminals are well received by users,becoming the dominant products inthe trunking communications market.Their functions and performance areconstantly improved as the GoTatechnology is getting more and moremature.G5100 seriesThe G5100 series is the firstprofessional trunking terminal appliedG612 seriesAs the GoTa market expands,users are segmented into differentgroups. To satisfy the requirements offrontline personnel, ZTE developed anew generation of G612 professionalinterphone series. Its target users arefrontline workers and management staffwho use interphones as their workingtool, especially enterprises and publicinstitutions that have the “analog todigital conversion” requirements.Figure 3 G612 candybar terminalFigure 4 G652 candybar terminalinterface and is receptive to the standardfittings of other professional vendors.It has a replaceable antenna, a 0.5Wspeaker with 36mm in diameter, andportable back splint.G780 seriesThe G780 series includes severalmodels operating at 800MHz, sub-800MHz and 450MHz A/B/L bands.Being a major breakthrough in theprofessional trunking terminal market,the G780 has gained popularity fromgovernment departments such asmilitary, police and security forces.It provides 3800mAh lithium batterysupporting 10 to 12 hours of continuoususe; a convenient knob design forgroup selection and volume control;waterproof and dustproof to the IP54standard; vibration resistance compliantwith the U.S. military standard MIL-The G612 series is simpler inappearance and functions than theG600. It weakens the voice call functionand enhances the trunking function. TheG612 has graphic interface and is easyto use.Figure 2 G5100 candybar terminalG652 seriesThe G652 series, an enhancement ofthe G600 series, provides two modelsoperating at 800MHz and sub-800MHzbands. Meeting the IP54 standard forwater and dust resistance, the G652adopts advanced 13-pin audio/dataFigure 5 G780 candybar terminal28 July 2008 ZTE TECHNOLOGIES

environment.Featuring fashionable CDMA handsetappearance, these GoTa consumerterminals support easy Push-To-Talk(PTT) function in addition to telephony,short message and data functions.Moreover, they come with a built-in FMstereo radio, camera, MP3 and externalmemory card, supporting GPS, BREWand WAP applications.Figure 7 S580 handsetSTD 810 C/D/E/F; new UI design withuser friendly and easy to use features;and optional Global Positioning System(GPS) function.VJ800 vehicle-mounted stationVehicle-mounted products arenot only an important part of a GoTatrunking system but also a strong link inthe GoTa terminal industry chain. Theyare mounted on automobiles, ships andother transportation vehicles, providingthe same or higher-level trunkingservices than handheld terminals.Figure 6 VJ800 vehicle-mounted stationThe VJ800 vehicle-mounted stationprovides the basic trunking call functionsand weakened voice call functions. Ithas been extensively applied in portsand transportation sections, winning afavorable reception from users.Consumer GoTa TerminalsConsumer GoTa terminals aredesigned for professional trunkingusers working at the management level,enterprises and public institutions thathave no special requirements for handsetapplication environment, serviceindustry including restaurants andhotels, and fashion-seeking youngsters.These users occasionally or often usetheir handset terminals for professionaltrunking services in addition to generalvoice communications, but they have nostrict requirements for the applicationFigure 8 S88 handsetConclusionAs the GoTa system is beinggradually popularized, the number ofGoTa users continues to grow. With itsrich experience in the field of trunkedradio communication, ZTE has beencommitted to meeting the needs ofcustomers and it will develop varietiesof GoTa terminals with firm structure,stable performance, friendly interface,complete functions, and advancedfeatures.ZTE TECHNOLOGIES July 2008 29

30 July 2008 ZTE TECHNOLOGIES