1. Application Analysis on TD-LTE Train-to-ground Wireless Telecommunications Zhengzhou Metro Co., Ltd. Zhengzhou Rail Transit Design and Research Institute Co., Ltd. Huawei Technologies Co., Ltd. Beijing Urban Engineering Design & Research Institute Co., Ltd.

2. Contents Acknowledgements 1 Requirements 2 Technology Selection 3 System Solution 4 Goals and Achievements 5 Application Value Promotion 6

3. 1 Acknowledgements 1.1 Provincial and municipal governments 1.2 Companies participating in the project construction 1.3 Institutions contributing to related scientific achievements

4. 1 Acknowledgements Department of Industry in Henan Province Henan Radio Management Committee Zhengzhou Metro Co., Ltd.Zhengzhou Rail Transit Design and Research Institute Co., Ltd.Beijing Urban Engineering Design & Research Institute Co., Ltd.Huawei Technologies Co., Ltd.China Railway Electrification Bureau Group Co., Ltd.Shenzhen GrenTech Co., LtdAndrew Telecommunications (China) Co., Ltd.

5. 2 Requirements 2.1 Information Required for Train-to-ground Wireless Communications 2.2 Analysis on Requirements for Train-to-ground Wireless Telecommunications 2.3 Technology Requirements on Train-to-ground Wireless Communications

6. 2.1 Information Required for Train-to-ground Wireless Communications Cab image Vehicle detection information Overhead contact line system monitoring information Vehicle-mounted FAS Data information TETRA dispatching information Operators’ radio network information Voice information Carriage image information Passenger information collection Security information PIS multimedia information Vehicle-mounted broadcast information Service information CBTC information Control information

7. 2.2 Analysis on Requirements for Train-to-ground Wireless Telecommunications Off-board real-time upload HDimage PIS information Play in real-time Vehicle-mounted radio Broadcast in a centralized manner Vehicle-mounted FAS information real-time upload Wireless voice-dispatching information CBTC information Use AP to transport signals Real-time upload vehicle detection information Real-time upload collected passenger information Onboard real-timeupload HD image Upload image information in the access network Other information Record and play Non-real time SD Real time TETRA Integration of real-time transmission TETRA Integration of real-time transmission

8. 2.3 Technology Requirements on Train-to-ground Wireless Communications High-Speed Mobility Large bandwidth Easy Implementation Advanced Technology Standardization System Extensibility System Compatibility

9. 3 Technology Selection 3.1 Feasibility of TD-LTE 3.2 TD-LTE Selection 3.3 Project Implementation Process

10. 3.1 Feasibility of TD-LTE  Combination of mobility and large bandwidth  Improvement of industrial chain  Main strain 4G technology in China and the world  Extensibility  Interoperability and interface standardization

11. 3.2 TD-LTE Selection Process  Communication  Review In 2010, experts exchanged opinions on 802.11WLAN, 802.16WiMAX, RailView, TD-LTE, DVB-T, MESH and other technologies on wireless telecommunications. Between October to November in 2010, research was carried out on companies developing wireless communication technologies.  Research In March 2011, Zhengzhou Rail Transport Wireless Telecommunications Expert Consultation was held.

12. 3.3 Project Implementation Process Frequency allocation In August 2011, the Department of Industry And Wireless Bureau of Zhengzhou Province approved Zhengzhou Metro Co., Ltd. to use the frequencies from 1,795 MHz to 1,805 MHz. Solution selection From 2011 to 2012, the design institute determined detailed technical solutions. Tender In 2012, tenders for commercial telecommunications equipment, train, and PIS equipment used in train and ground, as well as TD- LTE equipment were complete. Installation In 2013, equipment for TD-LTE was installed in Metro line 1 in Zhengzhou.

13. 4 System Solution 4.1 Station Scheme 4.2 Interval Scheme 4.3 Vehicle Scheme 4.4 Depot and Parking Solution 4.5 Implementation and Planning Scheme

14. 4.1 Station Scheme RRU Secondary combiner signals cover only station and rail line areas.  Station Scheme  System Solutions Core network BBU RRU Secondary combiner Shared commerc ial leaky cable TAU Optical cable Earth wire Legend: Leaky cable Power cable Leaky cable Optical Terminal box RF cable Leaky cable Multiplexer Power cable hole connecting to station hall Power protection cable Ground

15. 4.2 Interval Scheme Secondary combiner to relay commercial wireless signals BBU + RRU RRU Secondary combiner

16. 4.3 Vehicle Scheme  TAU + TAU TAU Equipment cabinet in the cab

17. 4.4 Depot and Parking Scheme  Engineering RRU Indoor antenna BBU Depot room Depot-use garage

18. 4.5 Implementation and Planning Scheme East Control Center Core Network Station N Station 1Sports Center Xiliuhu Station Line 1 Line N Transmission for line 1 Transmission for line N

19. 5 Goals and Achievements 5.1 Platform Construction 5.2 Service Bearing 5.3 Achievements and Future Research

20. 5.1 Platform Construction TD-LTE train-to-ground transport platform

21. 5.2 Service Bearing TD-LTE Monitor ed image informat ion …… Overhead Contact line system inspection Passenger information collection Wireless commissioni ng information in vehicle CBTC informat ion Vehicle detection informati on Vehicle- mounte d FAS Vehicle- mounted broadcast Video informat ion

22. 5.3 Achievements and Future Research Transmission channel for TD-LTE train-to-ground wireless telecommunications PIS Center Video Surveill ance Center FAS Center Vehicle- mounte d FAS Vehicle PIS Vehicle- mounted video CBTC Informa tion CBTC Informa tion Vehicle detection informati on Vehicle- mounted TETRA Passenger information collection CBTC informa tion CBTC informa tion Vehicle mainten ance center TETRA Center Technology detection systems in branches ……… Operato rs’ Core network User equipment

23. 6 eLTE Value Promotion

24. Comply with national requirements for strategic development of the technology, such as the issue of 4G licenses and the “National Development and Reform Commission on the organization and implementation of the fourth-generation TD-LTE mobile communications industry specific notice” (Office of High-Tech Development and Reform [2013] No. 2330 Standardize the radio frequencies for rail transportStandardize terminal equipment on integrated platformIntegrate rail transportation and reduce construction costsSimplify equipment and lines in rail line areas and reduce maintenance costs  Promotion of the eLTE technology is significant and valuable.

25. Thank You