new train-to-ground wireless communication network … · 1 huawei mass transit elte multi-service...
TRANSCRIPT
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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
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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.
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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