1. 1 Huawei Mass Transit eLTE Multi-Service and Unified Bearer Solution provides broadband, secure, and reliable train-to-ground communication in high-speed and mobile scenarios, completely solving multiple problems of the wireless train-to-ground system, including decentralized construction, weak mobile handover capabilities, and poor interference resistance. This solution also implements comprehensive bearing of multiple services, such as Passenger Information System (PIS), onboard video surveillance, Communication Based Train Control System (CBTC), and dedicated scheduling, guaranteeing rail transport operation safety and efficiency improvement. Huawei Mass Transit eLTE Multi-Service and Unified Bearer Solution New Train-to-Ground Wireless Communication Network and Excellent Broadband Experience

2. 2 Mass Transit Wireless Application Scenarios High-speed driving and stable access: High speed (a maximum of 160 km/h) poses a big challenge to stable access performance of wireless networks in high-speed, mobile scenarios Broadband service and refined management and control: One network bears multiple services such as HD streaming media and voice dispatching. A wireless train-to- ground communication network that provides large bandwidth and multi-service quality of service (QoS) guarantee is urgently needed. Real-time surveillance and high-efficiency operation and maintenance (O&M): IT applications in the mass transit industry require simplified network architecture, reliable devices, highly efficient network management to improve O&M efficiency. Modern mass transit's requirements on wireless communication systems: Secure and reliable transmission of CBCT information CBTC PIS Information release, onboard streaming media, video ads, and disaster emergency release Trunking Dispatching Vehicle dispatching and voice trunking communication among multiple work groups Video Surveillance Multiple channels of HD videos in compartments and the driver's cab Wireless networks promote the transformation of mass transit production and operation modes and improve operation safety and efficiency.

3. 3 Challenges on Traditional Wireless Communication Systems Existing train-to-ground wireless communication systems have many problems. For example, surveillance videos cannot be backhauled, PIS HD videos cannot be smoothly played, and network interference keeps increasing. Traditional wireless systems cannot adapt to the rapid development of mass transit services. Customers are in an urgent need of a large-bandwidth, high-reliability train-to-ground transmission system. Frequent handovers Non-guaranteed bandwidth Poor transmission quality Difficult maintenance Many interference sources What kind of train-to-ground wireless communication system can meet these challenges? Multi- service QoS guarantee Stable large bandwidth Interference resistance Easy to deploy and maintain

4. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 4 Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Top right corner for field-mark, customer or partner logotypes. ---------------- The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”. Huawei Enterprise A Better Way Huawei Mass Transit eLTE Multi-Service and Unified Bearer Solution Networking

5. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 5 Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Top right corner for field-mark, customer or partner logotypes. ---------------- The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”. Huawei Enterprise A Better Way Solution Features and Advantages Customer Benefits Guarantees safe operations and improves passengers' experience. One network bears broadband services and improve O&M efficiency. Value-added service (VAS) platform earns profits. Easy to deploy and maintain Space between trackside devices is 1.2 km, reducing the number of devices Share leaky cables with other systems High reliability and interference resistance Dedicated frequency bands Unique ICIC and IRC technologies Multilevel redundancy High speed and large bandwidth Fast and lossless handover High rate (> 50 Mbps) at 160 km/h Multi-service convergence 9-level QoS guarantee Comprehensive bearing of video, train control, and dispatching services