Transcript Huawei Urban Railway Successful Story

Huawei Urban Railway Success Story - Zhengzhou Metro
Dept: Transport Marketing Execution Dept
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One Network Replaces Multiple Networks in Subway Communication
Zhengzhou Subway China
Challenges:
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No real-time video surveillance in the carriages
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Broadcast information can’t be transmitted
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No trunking system for quick response to emergencies
Solution:
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•
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Real-time video surveillance and broadcast in the carriages
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PIS and video monitoring within one LTE network
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Support for trunking service and train control through future software
upgrade
Zhengzhou Metro Line One is a rapid transit metro
serving urban and suburban districts.
Benefits:
Length 26.1 km, a west-east line starting from new
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Guaranteed security and status monitoring in carriages
university campus and ending in Muzhuang.
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Distribution of all types of media information including
advertisements
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TD-LTE Selection and Project Implementation Processes
2010: Experts exchanged opinions on 802.11WLAN, 802.16WiMAX, RailView, TD-LTE, DVB-T, MESH, and
other technologies for wireless telecommunications.
Oct-Nov 2011: Research carriedout on companies developing wireless communication technologies.
Marc 2011: Zhengzhou Rail Transport Wireless Telecommunications Expert Consultation was held.
August 2011: 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.
2011 to 2012: Design institute determined detailed technical solutions.
2012: Tenders for commercial telecommunications equipment, train, and PIS equipment used in train and on
ground, as well as TD-LTE equipment were complete.
2013: Equipment for TD-LTE installed in Metro line 1 in Zhengzhou.
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Implementation and Planning Scheme
Network
scaleDevice name
eNodeB with Antenna
East Control Center
Core Network
NMS
Core Network OB Wireless Terminal
RF unit
eNodeB with RRU
OB Wireless Terminal
Transmission for line 1
Transmission for line N
Sports Center
Xiliuhu Station
Conf
eNB530
eCNS210
eOMC910
TAU
eRRU3232
eNB530 + eRRU
TAU
Line 1
Station 1
Station N
Line N
3
Qty
24
1
1
50 pcs
67 pcs
1 pc
2 pcs
High performance, high availability, and zero interference for HD
passenger service
Central server·
Voice/Video server
Dispatching
exchange
PIS·

PIS requirements and future
OMC
eCNS600
evolution.
IP Network
LCD
Switch
Platform
LCD
LTE RRU
LTE BBU

TAU
Distributed eNodeBs reduce number
of sites and handovers.
LTE RRU
Leaky Coaxial Cable
TAU
facilitates unified multi-service carrier.
Switch
LTE BBU
LTE RRU
Zero interference with dedicated
frequency band, high bandwidth
LCD
Switch
LTE BBU
Track and
vehicle

Platform
Platform
High bandwidth (20+ Mbit/s) fulfilling

Lower cost by utilizing leaky cables of
public communication systems.

Meets EN61373 and EN50121 railway
standards.
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Network planning and special scenario designs
光纤
RRU挂墙
跳线
漏缆
RRU挂墙
300m
300m
通信机房
RRU挂墙
300
m
通信机房
通信机房
BBU
RRU挂墙
BBU
BBU
RRU挂墙
RRU挂墙
300m
300m
2083m
DK25 -DK25+153
153
会展中心站
Exhibition Center Station
DK26DK26+194
- 194
RRU补充覆盖
RRU Additional
Coverage
300
m
RRU挂墙
RRU挂墙
1023.29m
DK27+429
DK27 - 429
黄河东路站
Huanghedonglu Station
DK28+452
DK28
+ 452
七里河站
Qilihe
Station
1st Scenario: Conventional tunnel
Feature: Conventional closed section
 BBU in station equipment room
and RRU in tunnel to cover 1.2
km.
 If distance is longer than 1.2 km,
a site will be deployed inside the
tunnel.
2nd Scenario: Tunnel portal
Feature: Multiple railways in a
tunnel
 Cell coverage is extended to
U-Groove then handed over
to the next cell in order to
avoid service interruption.
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3rd Scenario: U-Groove
Feature: No handover between
tunnels
 Panel antenna and leaky
fibers share RRU, U-Groove
coverage is provided by
panel antenna at tunnel
portal to avoid handover.
Interoperates well with other vendor products’ to perfectly support
HD Video services
SD Encoder
HD Encoder
Broadcast Workstation
Surveillance Workstation
Camera
Encoder
Encoder
Encoder
Onboard DVR (*2)
Touch Screen (*2)
Onboard Broadcast Controller (*2)
Camera
Camera
Camera
Camera
Encoder
Camera
Camera
Camera
Encoder
Encoder
Camera
Camera
Encoder
Camera
Camera
Encoder
Camera
Camera
LCD Display (*2)

Fully meets service interoperability requirements by providing multiple PIS
functions and performance (delay, handover, hot standby, and 60+ test items).

Operational capacity:
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Smooth HD video playback
Multiple video surveillance upload
Cell handover is 99% successful
No service interruption in case of co-channel interference
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Solution Recognition
On November 29, 2013 Huawei unveiled the world’s first eLTE solution for rail transportation which has gained
high recognition in the industry.
CCTV: The metro dispatching system, based on 4G, has enabled staff to monitor the metro in real time which was
previously impossible.
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