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

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

CBTCPIS

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

Challenges on Traditional Wireless

Communication SystemsExisting 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

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 4

Huawei Enterprise A Better Way

Huawei Mass Transit eLTE Multi-Service and Unified Bearer Solution

NetworkingCentral server

NMS serverTrunking dispatching platform

NMS workbenchVideo server

Core network device

Wired transmission network

Station subsystem

Station switch

Station

1

Station

2

Station

3

Station switch Station switch

Track subsystem Commercial LCX or

antenna coverage

Handheld terminal Handheld terminalOnboard subsystem

Onboard switch Onboard switch

Onboard LCD controller Onboard LCD controller

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 5

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