Transcript Huawei eLTE Solution for Zhengzhou Subway

Huawei eLTE Solution Success Case
for Zhengzhou Subway
Author/ ID: Yu Fuyong/61291
Dept: Enterprise Wireless Marketing Execution Dept.
Version: V1.0(20120715)
HUAWEI TECHNOLOGIES CO., LTD.
enterprise.huawei.com
HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution

Requirements and Challenges from Zhengzhou Subway Group

Key Success Factors of Huawei eLTE Solution

Application to Other Transportation Systems
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HUAWEI ENTERPRISE A BETTER WAY
Service Requirements from Zhengzhou Subway Group
Improving Passenger Satisfaction,
Adding Advertising Revenues
Passenger Information System (PIS)
• Travel information: routes, stations,
transfers, ticket prices
• Info-tainment: Weather forecasts, TV
Improving Public Safety
• Command & Dispatch: quick response
• Data acquisition: monitoring of tunnel and
to emergencies to ensure passenger
railway status to ensure immediate
safety and reduce property loss
response to problems
• Video Surveillance: Real-time
monitoring of carriage, driver’s cab, and
programs, advertising
Improving Efficiency
• Train control: driverless operation to
improve efficiency by 10%
railway to improve safety
High-performance Broadband Network to Improve Passenger Satisfaction, Public Safety, and Subway
Efficiency
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HUAWEI ENTERPRISE A BETTER WAY
Challenges Faced by Zhengzhou Subway
Subway
Applications
Command & Dispatch
TETRA
•
PIS, Video Surveillance, and Train Control
Wi-Fi
Only voice, no data service
• Low security
• No ability to interwork with IP services
• Low anti-interference capability
• Low performance when moving at high speed
• Difficult deployment and maintenance
• Fixed DL and UL bandwidth
Multiple Technologies in Subway Communication System Bring High Operation & Maintenance Costs
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HUAWEI ENTERPRISE A BETTER WAY
Zhengzhou Subway Project
Project Overview
Customer Requirements (Phase I)
• Service Expansion: PIS, video surveillance, train control,
and trunking service in one network in the future
• High Bandwidth: minimum 6 Mbits/s DL and 6 Mbits/s UL
per train, 48 Mbits/s UL in the future
3 Phases:
• Phase I (2014): 26.2 km, one control center, 20 stations, 26
trains, PIS and video surveillance services
• Phase II (2016): 55 trains, train control services
• Phase III (2023): 67 trains, command and dispatch services
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• High Mobility: Better performance at 120 km/Hr
• High Performance: multi-level QoS to guarantee smooth
video broadcasting
HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution

Requirements and Challenges from Zhengzhou Subway Group

Key Success Factors of Huawei eLTE Solution

Application to Other Transportation Systems
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution for Zhengzhou Subway Group
Central Server
Voice & Video Server
Dispatcher
OMC Server
OMC Client
eCNS600
IP Network
Station
Station
Station
LCD
LCD
Switch
Switch
RRU
BBU
RRU
Track &Train
Switch
BBU
RRU
Leaky Coaxial Cable (Antenna)
TAU
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TAU
7
BBU
HUAWEI ENTERPRISE A BETTER WAY
Advantages of Huawei eLTE Solution Over Wi-Fi
Strong Service
Expansion Ability
Strong Ability to
Reduce Interference
High-speed Mobility
Flexible Bandwidth
Configuration
Huawei eLTE Solution
High Handover
Success Rate
• Improves User Experience
• Enables Safer & More Efficient
High Bandwidth to
Support Data Services
Operation
• Reduces TCO
Large Coverage Area
Low-cost Network
Deployment
High Reliability
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9-level QoS to Guarantee
Real-time Data Services
HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution: Easy Service Expansion in The Future
Wi-Fi and TETRA
Wi-Fi Core
Huawei eLTE
TETRA Core
Dispatcher
Storage
Servers
TV Wall
EPC
RAN
TETRA RAN
Wi-Fi
Data Service
Trunking Voice Service
Video
Surveillance
• Second network deployed to support trunking service
• Coexisting networks make network maintenance difficult
Multimedia
Trunking
Remote Data
Acquisition
Broadband
Access
• PIS, video surveillance, train control, trunking service in one
network, with capacity for easy service expansion in the future
Wi-Fi: No Ability to Support Trunking Service, and One More Network to be Deployed
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution: Flexible Bandwidth Configuration
Wi-Fi
Huawei eWBB LTE
• Fixed 20-MHz channel bandwidth in 2.4-GHz band
• Flexible bandwidth configuration based on available frequency
resources: 1.4, 3, 5, 10, 15, 20 MHz
• Carrier aggregation to support more than 20 MHz
Wi-Fi: Unable to Support < 20-MHz Channel Bandwidth
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution: High Capacity, Supporting More Data
Services for a Better User Experience
Wi-Fi
Huawei eLTE
D1 (720 x 576): only 1 camera/cell
• DL 15 Mbits/s, UL 2 Mbits/s (20 MHz) in actual project
D1 (720 x 576) using TDD: 6 cameras/cell
• DL 20 Mbits/s, UL 10 Mbits/s (10 MHz, DL:UL = 1:1)
Wi-Fi : Low Capacity, Supporting Fewer Data Services
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution: Excellent Ability to Reduce Interference
Wi-Fi
Huawei eLTE
User Data Rate
User Data Rate
Gap
• Common frequency shared by individuals and organizations
• Specialized frequency to avoid interference
• Advanced technologies (ICIC, IRC) to reduce interference
may experience strong interference
• No special advanced technologies to reduce interference
Wi-Fi : Weak Anti-interference Capability
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE: 431-km/Hr Mobility Verified by Shanghai Maglev Train
Wi-Fi
Huawei eLTE
High Speed Coverage ???
• 431-km/hr mobility verified by Shanghai Maglev Train using
• Only fixed or low-speed access
AFC and Multi-RRU co-cell technologies
Wi-Fi: Designed for Fixed Access, Not for Moving Vehicles
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE: Quick Cell Handovers, High Service Quality
Wi-Fi
Huawei eLTE
• 9s between handovers at 80 km/hr and 500 ms handover
duration, with no smooth video service
• 54s between handovers at 80 km/hr and 100 ms handover
duration, ensuring smooth video service
Wi-Fi: Frequent Handovers with Long Delay and Poor Service Quality
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution: Large Coverage Area and Low Cost
Wi-Fi: Poor Coverage
AP
200m
AP
Huawei eLTE: Large Coverage Area
RRU
RRU
1.5 km
RRU
Leaky
Coaxial
Cable
Wi-Fi
• One AP to support 200m coverage, so too many APs, high
costs, and difficult network deployment
• Difficult coverage in winding tunnels
• One RRU to connect with leaky cable for stable coverage,
with range up to 1.5 km because of large RRU output power
(4 x 10W)
• Use of commercially available leaky cable for low network
deployment cost
Wi-Fi: Poor Coverage, More APs, and High Costs
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HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE: 9-level QoS to Guarantee Timeliness of High-priority
Data Service
Wi-Fi: Contention-based QoS
Huawei eLTE: 9-level QoS
QCI
Wi-Fi
No Absolute
Resource
Type
1
Priority
Priority
Example of Services
2
Conversational Voice
4
Conversational Video (Live Streaming)
3
5
Non-Conversational Video (Buffered Streaming)
4
3
Real-time Gaming
5
1
IMS Signaling
6
7
Voice, Video (Live Streaming), Interactive Gaming
6
Video (Buffered Streaming)
8
8
TCP-based services (e.g., www, email, chat, FTP,
P2P file sharing, progressive video, etc.)
9
9
2
GBR
• Users access Wi-Fi network through equal-access contention,
with no absolute user or service priority
• If the number of users reaches the maximum allowed, other
7
Non-GBR
users cannot access the network
• 9-level QoS algorithms to guarantee real-time data service
Wi-Fi: Contention-based Access, Unable to Guarantee QoS of Video Surveillance
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HUAWEI ENTERPRISE A BETTER WAY
Benefits to Zhengzhou Subway Group from Huawei eLTE Solution
Strong Service
Expansion Ability
Flexible Bandwidth
Configuration
• Increased revenues up to
Strong Ability to
Reduce Interference
20M USD from
High-speed
Mobility
advertising
• Increased passenger satisfaction up to
High Bandwidth to
Support Data Services
• Increased operating efficiency by
High Handover
Success Rate
20%
10%
• Reduced network maintenance costs by
30%
Large Coverage Area
Low-cost Network
Deployment
High Reliability
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9-level QoS to Guarantee
Real-time Data Services
HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution

Requirements and Challenges from Zhengzhou Subway Group

Key Success Factors of Huawei eLTE Solution

Application to Other Transportation Systems
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HUAWEI ENTERPRISE A BETTER WAY
Multiple Technologies Coexist in Civil Aviation
Analog Radio
•
•
Wi-Fi
No Capability to Support Broadband Data Service
Only voice, no data
•
service
baggage check and
Poor anti-interference
claim
ability, so crosstalk is
•
common
maintenance
TETRA
3G Operator Network
Only voice, no data
3G
service
•
Small coverage area and
difficult deployment and
Wireless
Technology
•
Some applications in
•
Some applications in
areas without Wi-Fi
No ability to interwork
coverage
with other IP services
•
No Ability to Cover Flying Aircraft
Incomplete signal
coverage and low
stability
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HUAWEI ENTERPRISE A BETTER WAY
Multiple Technologies Coexist in Maritime Ports
Challenges
Dispatch of Container Truck
230 MHz
•
Multiple networks coexist
•
High operational and
maintenance costs
Trunking System
Data Transmission
Handset
(TETRA)
400 MHz
Handset Base station Dispatcher
Business System
Container truck terminal
Wi-Fi
(2.4 GHz)
VMT terminal
Handset
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Container truck terminal
/VMT terminal
RCMS Monitoring System
HUAWEI ENTERPRISE A BETTER WAY
Huawei eLTE Solution Offers Advantages Over Wi-Fi in Civil
Aviation and Port Management
Huawei eLTE
Service Expansion
Anti-interference
PIS, video surveillance, train control, trunking
service in one network
Specialized frequency to avoid interference and
advanced technologies (ICIC, IRC) to reduce
interference
Wi-Fi
No ability to support trunking service
Open frequency and no special technologies to
prevent interference
Bandwidth
DL 20 Mbits/s, UL 10 Mbits/s (10 MHz, DL:UL = 1:1)
DL 15 Mbits/s, UL 2 Mbits/s (20 MHz) in actual
project
Bandwidth
Configuration
1.4, 3, 5, 10, 15, 20 MHz
Fixed 20-MHz channel bandwidth at 2.4 GHz
Coverage
Ultra-long-distance coverage (up to 100 km)
Maximum 10m coverage
QoS
9-level QoS algorithms to guarantee real-time data
Contention-based network access, limited number of
service
users
Device Management
Effective CPE operation and management, and easy
CPE fault detection and recovery
No methods for device management
Reliability
RRU MTBF = 15,000 hours
AP MTBF < 50,000 hours
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HUAWEI ENTERPRISE A BETTER WAY
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