Railway Communication System RCS International Convention Modern Telecom

Railway Communication System [RCS] International Convention Modern Telecom System for Safety & Efficient Train Management Ashwani Kumar Director-Wireline Technical Sales Ashwani. kumar 1@zte. com. cn April 27 -28 2012

Agenda § Requirements Analysis for RCS § RCS Solution § Successful Case Studies § ZTE Overview

Overall architecture of Railway Communications System [RCS] Overall structure of Railway system Regional Headquarter Division Headquarter . . . Division Headquarter. . . Station/ Section A typical railway system has a three-level structure of the Regional HQ, Divisions and stations/Sections ● Regional HQ is responsible for planning, management and Implementation of the railway unified management, Delivery and Control system ● Divisions have jurisdiction of their respective stations and sections and their primary responsibilities are the operations and maintenance of locomotives, engineering/electrical services, rolling stock, power supply for passenger transport and other auxiliary duties. ● Each station/section is under direct administration of its Division Headquarter Office ● Overall architecture of RCS Office Station/ Section 3 ● Three-level architecture- follows an administrative hierarchy; ; Aggregation/star network Topology. ● The service delivery is divided into three layers ● Access Layer- Below the Station/Section ● Aggregation/Convergence Layer- Between the Station/Section and Division ● Backbone Layer-Between the Division and Regional HQ

Classification of Railway ICT services Intelligent railway information system Main application systems Daily operation and management Transport organization system Passenger and freight transport marketing systems Office information management system Transport Delivery and Control Passenger transport marketing system Transport resource management system Transport production and organization Freight transport marketing system Operation resource management system Train operation control Decision support system Running safety monitoring Application System Train Operation Delivery Control System Description For safe operation and Delivery of vehicles The centralized traffic control system directly manages and dispatches trains. Administrative Department Regional HQ / Delivery office For integrating the computer network to realize unified management of cargos in freight vehicles/locomotives/trains/containers. Information Center For integrating the office resource network to realize office automation/networking. Information Center Ticketing and Reservation system The ticketing and reservation system for railway passenger transport completes the pre-sale and sale management of tickets and covers all administration levels. Passenger transport department Public Security Management Information System Information management system specially intended for railway police Public security Department Integrated Information Network The railway information infrastructure network mainly plays its role for the building of the intelligent information system, especially 4 primary application systems. 4

Overall architecture of railway ICT service network Integrated information network Public security management information system Integrated information network Ticketing and reservation system ASP ASP Public security management information system Delivery system Station/Section Regional Headquarter, Control center Office …… Access and aggregation network Railway Office Backbone network bureau …… ● The railway ICT network has an information system architecture coordinated and alligned with the three-level administration system consisting of the Regional HQ, Division and stations/sections; ● The infrastructure network for the ICT system includes the access and aggregation network and backbone network, which bear the applications provided by all information systems including four primary application systems; ● The traffics contributed by all application systems are of the layered, distributed and aggregation type. ● All application systems are independent of each other and the infrastructure network interconnects services at different levels which are distributed in different areas. 5

Integrated information network framework Gateway Internet Overall architecture of integrated information network Extranet ● Three-level network architectures are Headquarter: Transport interconnected by a data communication Safety production network bureau network. Control center ● Sub service systems are independent of each other. Firewall Intranet PE device ● Services are substantially IP-based services and most of the interfaces are Ethernet (10/1000 M) interfaces. Backbone Layer ● Interconnection is completed by the Gateway Extranet underlying PTN for the PE networking for data communication network. Division Intranet Firewall Safety production network Intranet Safety production network PE device Firewall ● The integrated information network takes a typical architecture in which various LAN-based services are interconnected via a wide area network. Access and aggregation Layer Station/section Intranet Firewall Safety production network Safety production ● The network data layer and physical layer need to be considered for the sake of the service bearing. Safety production network Firewall Feature requirements for service delivery Intranet Firewall ● The required bandwidth usually ranges from 10 to 100 M. 6

Network framework of Delivery system Aggregation point Station Bearer Headquarter: Control center Bearer Railway Bureau A Headquarter Delivery and Control center Integrated information network Railway bureau Delivery and Control center Station common-level Delivery network Common-level Delivery network Other application systems Boundary commonlevel Delivery and Control network Transport Railway Bureau B Overall architecture of Delivery system ● It has a three-level network architecture covering the entire line and is divided into two levels: unified Delivery by the central office and internal Delivery by railway bureaus. It is used for operation scheduling and real-time tracking, adjustment and Control. ● It consists of the office communications system, control signaling system, data communication system and multi-media system. It performs distributed control and centralized management. Service Transport requirements ● Large ●A number of access points, Ethernet and TDM service interfaces. wide bandwidth will be required when multimedia monitoring is required. 7

Overall network architecture of Delivery system Headquarter Delivery and Control center Railway bureau Delivery and Control center 2 M digital channel ● Usually Station 2 M digital channel signaling services are transmitted over 2 M digital channel and are centrally controlled and managed 2 M digital channel ● Delivery services are distributed at all sites and thus numerous service access points exist, so a Large no. of 2 M interfaces need to be provided. Station common-level Delivery network (2 M channel) 8

Architecture of ticketing and reservation system Database Application server (ticketing system) Headquarter Central system Database Application server (ticketing system) Central system at local level Database It is divided into three levels: headquarter, local and station. ● Station/sale point level system provide the function of selling tickets in real time. Central ● system for other regions Application server (ticketing system) System at the station level Sale points ● ● …… 9 Local level system mainly provide the function of managing the passenger transport services and performing Delivery centering on agents. Central system mainly provide the function of coordination and management, data analysis and networking of the ticketing systems.

Networking architecture for ticketing and reservation services Headquarter Central system Ticketing system ● The application platforms at the central, local and station levels are connected by the data communication networks. ● Services are borne over the data communication networks, which are connected via the underlying bearer, such as PTN. ● Most of the service platform interfaces are (10/1000 M) Ethernet interfaces. ● The interfaces with the PE devices are POS (STM-N) or Ethernet (FE/GE) interfaces. PE devices Bearer Central system at the local level Ticketing system PE devices Bearer System at the station level Ticketing system PE devices Bearer PE devices Ticketing system 10

Networking architecture of public security management information system Headquarter Public security bureau ● The networking includes the networking of such services as online office, video conferencing, video monitoring, etc. ● For video surveillance services, mass storage needs to be provided. ● The application platforms at the central, local and station levels are connected by the data communication networks. ● Monitoring and video conferencing applications utilize wide bandwidths. Depending upon difference in sites, usually a bandwidth ranging from 50 to 150 M is needed by each site for the standard video resolution. PE devices Bearer network Local public security departments PE devices Bearer network Basic police stations PE devices Bearer network PE devices 11

Video Surveillance System (VSS) 12

System architecture of Public Services network BSC RNC Local network 1 RNC Local network 2 Local network n Local network X BSC BTS BSC RNC … ● Among Public services, railway coverage of wireless services is the most popular ● Services are networked for different local network ranges RNC Node. B E 1/STM-1 Eth BTS Node. B Service Transport network ● ● Services are characterized by backhaul depending upon their home local network. ● For 2 G/3 G wireless services, usually the interfaces are of the E 1/STM-1 and FE/GE type. Access node E 1 Eth BTS Node. B 13 Separated from internal Network

Telecommunication System Structure OCC CCTV Monitor PA Console SCADA/ATS/B AS/FAS Radio E/M Audio （MPEG-X） Clock RS 232/422/48 5/V 35/V 24/X. 21 10/100 BASE-T LAN 10/100 BASE-T AFC RS 422 Public telephone OA Audio Public Telephone V 5 RS-422 PBX 10/100 BASE-T 2 B+D/30 B+D Dispatching Telephone 2/4 line audio AFC Transmission Network （MPEGX） Encoder Clock E/M RS 232/422/48 5/V 35/V 24/X. 21 Monitor 10/100 BASE-T SCADA/ATS/B AS/FAS 10/100 BASE-T PA Dispatcher TRK Dispatch Console CCTV LAN OA Camera 14

Network layering of railway communication services Service layer Integrated information network Delivery system Ticketing and reservation system Public security management information system BTS Node. B ASP Eth Data layer (IP) PE E 1 Eth PE Civil system PE Eth E 1 Eth/POS TDM/optical layer Eth/POS Transport node Physical layer (Optical fiber) 15

Summary of RCS requirements n n n n Service Assurance High reliability High service availability Data integrity High network reliability High network survivability Low-latency Delivery control RCS Requirement n Professional systems are isolated from each other n Information interaction and sharing between service platforms is strictly controllable. n The professional and civil systems are isolated from each other. n n Full-range networking Centralized Delivery Real-time data updating & sharing n High bandwidth video surveillance High efficiency Running safety Communication security Network security Information security Safety and security ● All services are required to be delivered with high reliability, low latency, services isolation and high security ● Also a high bandwidth is required for multimedia services ● To meet these requirements, following transport technologies are available for RCS ● TDM based SDH/MSTP technology supporting multi-service transport ● Packet based PTN technology supporting multi-service transport 16

Agenda § Requirements Analysis for RCS § RCS Solution § Successful Case Studies § ZTE Overview

End-to-end Solution Terminal Access Transport Network Service on cloud Internet PC/Tablet STB x. DSL MSAN AP Data Center IP/MPLS-TP DWDM Backbone ISPA ISPB x. PON Internet Mobile CPE L 2/L 3 Switch Surveillance Data card M 2 M Router IPTV Surveillance HG 2 G/3 G/4 G GSM-R/Go. Ta SDH/WDM/PTN Aggregation Video conference Contact Center RFID Reader Microwave RFID Smart Meter Global Open Trunking Architecture-CDMA Section/Station 18 Division/Regional HQ

Overall architecture of Transport Network for RCS Station Office Service transport node Station Agg rega t ion n Service transport node etwo Backbone network rk rk o w et Service transport node n ion at Station g gre Headquarter: Transport bureau Control center Ag Office Station Legend: Networking solution for service bearer network ● It has a hierarchical aggregation architecture and it is recommended to build a ring network. ● Medium and large sites and headquarter site make up the backbone network. ● Access services at each small site are aggregated to the nearest medium and large sites and access can be realized in a dual-node manner. ● All branch sites and offices are connected as extended sites. 19 Medium and large stations / headquarter Small station / office

Analysis of BW requirements and traffic characteristics Service Characteristic Bandwidth Requirement Service Interface Remarks A wide bandwidth is required in case of such video services as video conferencing, etc. 64 K interfaces or below may be required. Integrated information system Aggregation type N*10 M Ethernet, POS Delivery system Distributed aggregation type <10 M E 1, ethernet Ticketing and reservation system Distributed aggregation type 10 M Ethernet, POS Public security management information system Distributed aggregation type 10~100 M Ethernet, POS A wide bandwidth is required for video surveillance services. Public Communication system Regional aggregation type <10 M / N*10 M Ethernet, E 1/STM-1 A wide bandwidth is required for 3 G services. Bandwidth requirement for service bearing: the bandwidth required for each site ranges from 50 to 200 M and is at least above 100 M when video services are operated. Networking of access network ● As 100 M services are connected for each site and each access ring consists of 6 to 8 nodes, a 2. 5/10 G ring system is needed and planned service bandwidth is above 500 M Networking of Aggregation network ● 10 G devices are needed to connect all access rings. ● Bandwidth utilization is related to the number of access rings. 20

Requirements for Transport Network When Services Are Transformed to All IP Packet access convergence Core scheduling channel Transport network Access convergence layer n Service application n n Core layer Application platform Interface compatibility : taking the Ethernet interface as a core and compatible with the TDM/ATM services Service packetization : based on packet switching and transmission Qo. S mechanism : monitoring services and providing end-to-end differentiated services Synchronization : carrier-class clock/time synchronization scheme Network availability : carrier-class OAM and protection Low TCO: reducing CAPEX/OPEX 21

Limitation of MSTP Network Rigid pipe Low IP Suitability MSTP Rigid Pipe VC Granule Model of SDH/MSTP Ethernet Maximum Bandwidth Idle Bandwidth VC Map G F P L 2 Circuit-switched core Low scalability Constrained convergence a. GW STM-N a. GW S 1 a. GW Can not meet requirement of MP 2 MP interconnection for LTE X 2 interfaces, and bearing full service such as multicast S 1 Mobile Backhaul X 2 STM-N X 2 e. NB ● X 2 e. NB MSTP network carries service traffic through rigid pipe (VC), with limitation of low statistical multiplexing efficiency, low encapsulation efficiency and poor service convergence; ● MSTP only involves L 1 and L 2 protocol, can not meet demand of future Packet based full-service Transport. 22

Packet-oriented Transport Technology - PTN Packet Transport Network (PTN) Packet Technology （MPLS/Enhanced Ethernet） Ø L 2/L 3 Packet Switching Ø Statistical Multiplexing and Qo. S Ø Flexibility in Deployment PTN (Packet Transport Network) SDH (Transmission Experience) Ø End-to-end service provisioning and management Ø Precise Clock Sync Ø Carrier-class OAM and Protection PTN / MPLS-TP = MPLS - Most L 3 Complexity + OAM + Protection + Time Sync. 23

ZTE PTN Product Family ZXCTN 6100 ZXCTN 6200 Access layer ZXCTN 6300 Convergence layer G E Mobile ZXCTN 9008 ZXCTN 9004 Metropolitan area core layer Abis STM-1/GE BSC Business GE 10 GE/new or legacy network MGW Iub STM-1/GE GE/10 GE RNC SR S-GW MME GE/10 GE Residential Integrated platform, high-efficiency transmission Refined operation & maintenance, simplified management BRAS Providing perfect PTN series products Reliable, security, energy-saving and green network 24

ZTE PTN Product Family ZXCTN 6100 ZXCTN 6200 Access layer ZXCTN 6300 Convergence layer G E Mobile ZXCTN 9008 ZXCTN 9004 Metropolitan area core layer Abis STM-1/GE BSC Business GE 10 GE/new or legacy network MGW Iub STM-1/GE GE/10 GE RNC SR S-GW MME GE/10 GE Residential Integrated platform, high-efficiency transmission Refined operation & maintenance, simplified management BRAS Providing perfect PTN series products Reliable, security, energy-saving and green network 25

Ring Topology … Station Solution 1: single-node interconnection at each site Aggregation ring Backbone ring Aggregation ring Solution 2: dual-node interconnection at each site Aggregation ring Backbone ring Aggregation ring Most of optical cables on a railway line are networked in a linear/star architecture, so the solution to perform ring networking by using the physical lines needs to be considered. 26

Transport of Delivery services … Station Central station Station Delivery device B 1 A 1 C 1 D 1 A Delivery device B C D A 2 B 2 C 2 D 2 Planning of service flow A Service Delivery plane A 1 C 1 B 1 E 1 interface B D B 2 D 1 A Aggregation C 2 C C C 1 A 1 Delivery device A 2 DNI D 2 C 2 Aggregation Backbone DNI Transport plane B 1 ● ● ● D 1 B D B 2 D 2 Transport device Delivery devices make up a hierarchical service network and are usually networked by 2 M/FE interfaces. The bearer network realizes efficient, reliable and secure service transport with low latency based on the point-to-point 2 M/ FE channel provided for Delivery devices. The bearer network guarantees the reliability of service bearing with Ring and DNI protection technologies. 27

Transport of integrated information services, ticketing services and police services Integrated information network Dedicated router Ticketing and reservation system Common router ASP Station 1 Integrated information network Public security management information system Data access layer Station n Planning of service flow Eth/POS Access ASP Data backbone layer Station 2 Data plane Ticketing Public security management and information system reservation system Backbone DNI MSTP plane 28

Transport of Public Communication services BSC RNC Local network 2 Local network 1 Local network N … Station Local network 2 Local network 1 BSC RNC Station Local network N ● The bearing traffic is DNI Transport plane BTS Node. B Aggregation Transport device BTS Node. B configured and planned based on the planning of the mobile local network to which each station/section corresponds. ● The backhaul traffic is planned based on the position of the BSC/RNC for each loc al network. ● E 1/Eth and STM-1 service interfaces BTS Node. B 29

Transport of Video services (single-level aggregation) Video conferencing Video surveillance As 5 to 10 cameras are needed for each small station and we take an average number, say 8; the resolution is SD and the video conference system also needs to be taken into account, so the bandwidth required is 6*8+8=56 M. Station Video conferencing Station Video surveillance As 10 to 15 cameras are needed for each big station and we take an average number, say 12; the resolution is SD and the video conference system also needs to be taken into account, so the bandwidth required is 6*12+8=80 M. The total bandwidth required is: Number of big stations*80 M+number of small stations*56 M Central station Station Planning of service flow FE Transport network ● Bandwidth Aggregation DNI Aggregation Backbone DNI The bandwidth required for the access layer ranges from 200 to 400 M (4 to 8 nodes). ● The bandwidth required for the backbone layer ranges from 1 to 3 G (4 to 8 access rings). ● If HD video surveillance is needed, the planned bandwidth should be doubled. Transport device Service access 30 ● Video conferencing services can be connected to the MSTP/ in Eo. S mode or PTN ● Separate networking is recommended for monitoring services, which should be directly connected to the MSTP in the EOS mode or PTN

Transport of Video services (two-level aggregation) Video conferencing Video surveillance CCTV Station Big station Central station Station Planning of service flow FE Aggregation DNI Aggregation Backbone DNI Transport network Bandwidth Transport device ● The bandwidths required for the access layer and backbone layer of the bearer network are equivalent to those required in case of the single-level aggregation. Service access 31 ● Video conferencing services can be connected to the MSTP/ in Eo. S mode or PTN ● Separate networking is recommended for monitoring services, which should be directly connected to the MSTP in the EOS mode or PTN

Railway Telecommunication Equipment OCC Integration Monitor Control Room CCTV Wireless PA Private T SCC Station Room 32 Public T

Railway telecommunication Equipment Camera Speaker Station Equipment Digital Clock Station Equipment 33

Solution Highlights • • Broadband large-capacity digital transmission NW Integrated multi-service communication network Equipment with standard interface- Safe and reliable Interconnection with existing and public network MSTP/PTN • Better non-real-time and real-time business • Rich business connector • Enhanced equipment with ADM, DXC and IP/ATM/Ethernet functions • Support 155/622/2. 5 G/10 G smooth upgrade CCTV Design HD-Based Solution - HD IP camera-based on H. 264 protocol - Every station can realize the local monitoring and record - Every camera can upload the video to the upper level center - Based on Metro IP Bear network - 3 G/Wimax camera as backup solution - Access control and detection sensor as the supporting part Go. Ta Digital Wireless Trunking System Providing Dispatch Solutions: - Traffic scheduling scheme - Maintenance scheduling scheme - Disaster prevention scheduling scheme - Environmental control scheduling scheme -Emergency scheduling scheme Integrated Power System - Easy for maintenance and management. - Reduce equipment room space - Overall design, unified configuration, resource sharing, saving investment -Improve the reliability of UPS and the power system Clock System - Provide unified time for the line staff - Provide standard time for passengers -Offer standard time information for other systems Public Address System - Automatically broadcast train arrival and departure information - In emergencies, system broadcasts information for passengers. 34

Agenda § Requirements Analysis for RCS § RCS Solution § Successful Case Studies § ZTE Overview

ZTE and Railway Construction Ø 10 years + experiences Ø Design, procurement, construction, integration Ø Engaged in more than 30 railway construction projects domestic and international. 36

Railway Modernization Project in Vietnam • Modernization of telecommunication and signal on North Vietnam • • • Hanoi - Dong Dang Hanoi - Thai nguyen Hanoi - Lao cai and Hanoi Junction 650 Km, 65 Stations Offer Planning, design, Equipment, Deployment and Integration services. 37

Railway Signal Project in Uzbekistan • • • Modernization of telecommunication and signal in Uzbekistan Successfully provided scheme, design, procurement, construction services 116 kms, 9 stations Signaling: CBI, axle-counting, Signal Machine Telecom: SDH, PABX, Dispatch, PA, etc. Duration: 2 years 38

Metro Rail Projects in China NO. Carrier 1 Bei Jing Metro company 2 Chong Qing Metro company 3 4 Contract Signing Date Project System Capacity and Scale Telecommunication system integrated for first-stage Jun-2006 construction of 10 th line(include Olympic Line) of Bei Jing Metro Equipment List Transmission、service telephone、special 22 stations telephone、wireless 、CCTV、Public Alarm、clock、power supply and so on Telecommunication system EPC Transmission、service telephone、special Jul-2003 for first-stage construction of 14 stations telephone、wireless 、CCTV、Public Chong Qing Metro Alarm、clock、power supply and so on Telecommunication system Guang Zhou 2004 -6 -28 integrated for 1 st line of Hang Metro company Zhou Metro, Guang Zhou Tian Jin Metro Telecommunication system 2009 -4 -20 integrated for 2 rd line of Tina Jin company Metro. Tian Jin 39 Technical Support, design liaison, Production superintendent , test, management, installation and debugging 34 stations superintendent, check and accept, technical document management and so on. Technical Support, design liaison, Production superintendent , test, management, installation and debugging 19 station superintendent, check and accept, technical document management and so on.

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Qinghai-Tibet Railway Line Monitoring Project Anduo Golmud RPR 1 Liantonghe Gangxiu Tuoru Gulu Zhakazangbu Tanggula Golmud RPR 2 Dangxiong Buqiangge Yanshiping Chumaerh Xiushuihe Wangkun e Riaquchi Xiaonanchuan Yangbalin Angga Tongtianhe Ganlong Gurong Tuotuohe 1 2. 5 G optical ring network (Golmud ring) Golmud Nanshankou 2. 5 G optical ring network (Lhasa ring) Lhasa West Lhasa RPR 1 Tuotuohe 2 Maxiang Nachitai Yangbajing Lhasa RPR 2 Yuzhufeng • • Daqiongguo Wuli Jiangkedong Largest commercialized technology in a Budongquan network with RPR over SDH Kaixinling Wudaoliang region at 4000 m above seal level 45 stations with a total length of 1140 km-7 manned & 38 Tanggang unmanned Bumade stations North Tanggula Real-time video surveillance and the network supports voice services. South Tanggula Advantages of statistical multiplexing, spatial reuse, flexible bandwidth allocation, short transmission latency … 41 Wumatang Sangxiong Tuoju Cuona Diwuma Lake Naqu Manned station ZXMP S 385 Unmanned station ZXMP S 385

Harbin-Dalian Passenger Transport Line Shenyang Communication Station Shenyang Railway Bureau Dispatching and Machinery Room Branch of Shenyang Institute of Electronics Bureau Electron Institute New Dalian 622 M Branch of Dalian Institute of Electronics Dalian Communication Station 2. 5 G New Dalian Shenyang STM-64 Multiplex section 1+1 Protection link Dalian Signal Cabin Two-fiber channel protection ring STM-4 Odd base station and signal node 2. 5 G Branch of Changchun Institute of Electronics 2. 5 G Changchun North Shenyang Power traction node Even base station and signal node In-station node Legend: ZXMP S 385 STM-64 STM-4 Two-fiber channel protection ring Odd base station and signal node Even base station and signal node In-station node ZXMP S 385 STM-16 Harbin Communication West Harbin Station West Changchun Power traction node Even base station and signal node Multiplex terminal Shenyang Communication Station To the existing 2. 5 G equipment STM-4 Two-fiber channel protection ring Odd base station and signal node Changchun Communication Station ZXMP S 385 STM-4 Two-fiber channel protection ring Multiplex terminal Odd base station and signal node Power traction node Even base station and signal node In-station node ZXMP S 330 STM-1 This project uses the MSTP technology for transport of railway communication services -Delivery services, office system services and monitoring services. 42

National trunk line: communications network for Baoji -Chengdu Railway Line Baoji ADM Fengzhou Huixian ADM REG Lueyang Yangpingguan Guangyuan Banzhuyuan REG ADM REG Jiangyou REG Mianyang ADM Deyang REG ADM After reconstructing five major high-speed ring networks in 2001, China Railcom launched the optical cable communication project for 6 major trunk lines in 2002 and “Baoji-Chengdu Line Access Network Project” was part of that project. For Baoji. Chengdu Line Access Network Project, 11 communication stations and 60 intermediate stations were arranged and the project includes the “long-distance network ” and “access network”; wherein, within Xi’an-Chengdu Section the SDH STM-16 long-distance network, including 6 STM-16 ADMs and 6 REGs, was put into operation. ZTE adopted the MSTP technology to build the long-distance network and this showed that it took into full consideration service scalability, smooth upgrade ability, reliability and protective actions. At the same time, it constructed the STM-4 access network by using the ZXA 10 access network device at each station to provide such services as automatic telephoning, 2/4 -line audio channels, N*64 Kbit/s (V. 35), 2 B+D, etc, and at the same time it provided a 2 Mb/s digital channel for the dedicated digital railway Delivery system. 43

E-MSTP video transmission system for Lanzhou-Xinjiang Railway Line Bage Qiquanhu Xiaputule Shanshan Turpan Bi-direction 1. 25 G RPR ring Meiyaogou Hongshankou The Mountain of Flames In this project, an E-MSTP system was newly provided for 8 stations to transmit video information between such 8 stations. The system uses the RPR technology based on the RPR over SDH, and thus has the advantages of statistical multiplexing, spatial reuse, flexible bandwidth allocation, short transmission latency, etc. 44

Hankou-Yichang Passenger Transport Line Hankou Zhujiatai Hanchuan Qianjiang Xiantao Jingzhou Zhijiang East Yichang 2. 5 G linear multiplex section protection Legend : 2. 5 G (1+1) ZXMP S 385 For this project, the STM-16 optical synchronization digital transport devices are arranged in signal cabins at the stations along the line and such devices are mainly used for transporting Delivery services and monitoring services and also can provide transmission channels for integrated information services. 45

Transmission network for Zhengzhou-Xi’an Passenger Transport Line EMS (Active) EMS (Standby) 10 G DCN LCT Legend: : STM-64 STM-1/4 For the backbone layer of the transmission network in this project, the STM-64 ADM devices were adopted, and at stations and within sections at the access layer 224 sets of 622 Mb/s MSTP devices and 20 sets of 155 Mb/s MSTP devices in total were mounted. The main services borne by such network are Delivery, integrated information and monitoring services. 46

Application cases in railway communication industry n n n n n 47 Harbin-Dalian Passenger Transport Line Xiangpu Passenger Transport Line Changchun-Jilin Passenger Transport Line Hainan East Ring Passenger Transport Line Shanghai-Ningbo Passenger Transport Line Inner Mongolia Section of Baotou. Xi’an Railway Line Communications system for South Tongpu Rialway Dedicated Line Project of Communications system for Heyanri Branch Line Communications system for Inner Mongolia Lince Railway Line ……

Milestone Achieved ü Communication system Construction/Integration for ü ü ü Guangzhou Metro Line 2 (2000); 3 [2003]; 4 [2004], 28 Ext. Sect [2007], 3 North Ext Sect [2009] Zhujiang Xincheng section of Guangzhou Metro Line (2009) Extended section of Shenzhen Metro Line 1 (2006) Shenzhen Metro Line 3 (2007) Beijing Metro Line 10 (2006]; Yizhuang Section [2009], Changping Section [2009] Tianjin Metro Line 2 (2009) Vietnam railway project (2005) Hangzhou Metro Line 1 (2008) Ningbo Metro Line 1 (2009) Tianjin Metro Lines 2&3 (2008) Chengdu Metro Line 1 (2008) ü Turnkey contract of the communication system construction for ü ü ü Phase 1 of Shenzhen Metro Lines 1&4 (2001) Shenzhen Metro Line 5 (2008) Phase 1 of Chongqing Light Rail 2 (2004) Phase 2 of Chongqing Light Rail 2 (2005) Beijing Metro Line 5 (2006) Uzbekistan railway project (2008) 48

Agenda § Requirements Analysis for RCS § RCS Solution § Successful Case Studies § ZTE Overview

ZTE Corporation • Multinational Telecom company, founded in 1985 • Globally Ranked #4 in terms of handset shipments • Listed in Shenzhen as ‘A Share Stock’ in 1997 and in Hong Kong as ‘H Share Stock’ in 2004 • Transparent financial reporting structure • Audited by Ernst & Young • R&D and innovation are company values and drive standards and patent acquisition • • Ranked #1 globally in international patent applications in 2011 40, 000+ Patent applications; 9, 000+ International patents 3178 PCT patents granted in 2011, Rank #1 across all industries in China 15 R&D centers worldwide; 26, 000 +R&D staff- #1 of China-listed companies Dedicated to fulfilling customer and market requirements Moving into emerging technologies e. g. Cloud computing and Integrated Circuit Revenue Growth in Q 1 -Q 3 in 2011 was 33. 4% [in US$] • • Ranked #1 across all industries worldwide [Source: Frost & Sullivan] Contract sales in 2010 exceeded 100 billion RMB Operating revenue in 2011 exceeded 10 billion US$ Revenue from international operations grew 36. 41% in H 1’ 2011 [55. 74% of total operating revenue] 50

Global Operation p 70, 000 Employees p 107 Branches globally p 9 Logistics centers p 14 Global training centers p 7 Regional customer centers p 45 Local customer centers p 10, 000 after-sales staff p 3, 000+ local partners p Deployment by 61 of Top 100 global operators. North America Europe ØBritish Telecom ØBouygues Telecom ØDeutsche Telekom ØMetro. PCS ØFrance Telecom ØRogers ØKPN ØSprint ØMega. Fon ØTelus ØTime Warner Cable ØMTS ØOTE Hellenic ØUS Cellular/TDS ØPortugal Telecom ØVerizon ØSFR ØSvyazinvest ØTele 2 ØTelecom Italia ØTelefónica ØTelenor ØTelia. Sonera Ø América Móvil ØTurk Telekom Ø Brasil Telecom ØTurkcell Øvimpel. Com Ø CANTv ØVodafone Ø Oi Asia Pacific ØAT&T ØBharti Airtel ØBCE Latin America Ø Telecom Argentina Ø Telmex ØBSNL ØChina Mobile ØChina Telecom ØChina Unicom ØKDDI ØKT Korea Telecom ØHutchison ØLG Telecom ØPCCW ØPLDT ØPT Telkom Indonesia MEA ØEtisalat ØOrascom ØMaroc Telecom ØMTN ØReliance ØSing Tel ØSK Telecom ØSoftbank ØTelstra/CSL ØTelecom Malaysia ØSTC ØTelecom Egypt ØTelkom S. A. ØZain Serving 500+ Operators in 140+ Countries As of End of 2010 51

Summary of features of RCS • The office network, production network and external service network are isolated from each other. • Services are characterized by aggregation. • High reliability, availability and security. • Interconnection is realized via the data network and certain bandwidth requirement is presented (several Ms to tends of Ms). Integrated information network • • strictly isolated from other networks Full-range networking, distributed control, and centralized Delivery. High efficiency, reliability, availability and security Large No. of 2 M Interfaces Delivery system • Isolated from other service networks. • Full range networking, information sharing and distributed processing. • High reliability, availability and security • Interconnection is realized via the data network and bandwidth requirement is 10/100 M Ticketing and reservation system • It is a private network and is required to be isolated from other service networks. • Full-range networking, information sharing, distributed processing and centralized monitoring. • High reliability, availability and security • Multimedia service require higher bandwidth Public security management information system Railway communication system 53 • It is a service network for public and is required to be isolated from other service networks. • Networking is performed separately depending upon different local network homes. • High reliability, availability and security • E 1/FE interfaces Public network

Suggestions for solution for synchronous network deployment … Station 1) Frequency synchronization: 2) Time synchronization : … Station Standby Station PRC/SSU GPS Active GPS Station PRC ● For frequency synchronization, transmission of synchronized signals can be realized via the SDH network ● The SDH network is used for telephone system for Delivery services, and such service systems as GSM, WCDMA, etc. GPS ● For accurate time synchronization, the transmission of clock signals cannot be realized via the MSTP network but can be only realized by installing the GPS devices. ● The installation of GPS devices can be used for the Delivery system and such civil systems requiring highly accurate clock signals as CDMA/CDMA 2000, Wimax, LTE, etc. ● For applications having no high requirement for timing accuracy, clock signals can be transmitted via the network, such as the office system, ticketing system, etc. 54