Session 2:INTELLIGENT TRANSPORT SYSTEMS – SOME BITS FROM THE WORLD
ITS Radiocommunications Standards and Development in Japanp p
12 F b 2014
Takahiro Ueno
12 February 2014Berlin, Germany
Takahiro UenoDeputy Director,
Land Mobile Communications Div., Radio Dept., Telecommunications BureauTelecommunications Bureau,
Ministry of Internal Affairs and Communications (MIC), Japan
1Contents
1. ITS Policy and Radiocommunications in Japan
2 700 MHz ITS: V I and V V Communication2. 700 MHz ITS: V‐I and V‐V Communication
3. 79 GHz High‐Resolution Automotive Radar
4. ITS in ITU‐R
5. Cooperation between Europe and Japan
2ITS Radiocommunications in Japan
VICS ETC
VICS: Vehicle Information and Communication System
Automotive RadarITS Spot
On Board Unit Display
ITS applications using radiocommunications: VICS, ETC, ITS Spot and Automotive Radar
3ITS and Government of Japan
The Strategic Headquarters for the Promotion of
an Advanced Information and Telecommunications Network Society
Ministry of Internal Affairs and Communications • Director: Prime Minister Shinzo AbeMinistry of Internal Affairs and Communications
National Police Agency
Ministry of Economy Trade and Industry
• Administration: Cabinet Secretariat
Ministry of Land, Infrastructure, Transport and Tourism
Ministry of Economy, Trade and Industry
“Declaration to be the World’s Most Advanced IT Nation” (J 14 2013)“Declaration to be the World’s Most Advanced IT Nation” (June 14, 2013)
[T]he number of traffic accident fatalities will be reduced to less than 2,500 by about 2018. Also, the world’s safest road transportation will be created (the world’s l t t f t ffi f t liti d t l ti ) d t ffi ti ill lowest rate of traffic fatalities compared to population) and traffic congestion will be greatly reduced by 2020.
4700 MHz band ITS Example Services (drives on the left)
[I2V, V2V]Left-turn collision with motorcycle prevention system
[I2V V2V]
[I2V]
[I2V, V2V]Right-turn collisionprevention system
[V2V, I2V]Crossing collision prevention system
[I2V]Crossing pedestrian recognition enhancement system
[V2P][V2P]Pedestrian existence advisory system
5700MHz band ITS – Prepare for Deployment
1. Innovative ASV demonstration in Hiroshima, Japan- LRV and automobile cooperation -
• University of Tokyo• Hiroshima Electric Railway Co., Ltd.• National Traffic Safety and Environment Laboratory• Mazda Motor Corporation
2. Driving Safety Support Systems FOT in Toyota City, Japan –for driver support systems– UTMS Society of Japan and Toyota Motor Corporation
Right turn failure to stop (Stop)
Safe turn rightBefore entering opposite lane
BrakeB !!
BRAKEALERT
Roadside sensors detect objects and notify drivers nearby via 700MHz radio waves to ensure their safety
Beep!!
6700MHz band ITS: Future action
Term: 2014 2016Term: 2014-2016Budget: 2014 $2.1M
2015, 2016 TBDStudying…
Application On‐board device Application On-board device
Security Interoperability test Message setSecurity
Field Operation Tests
MIC starts FOTs in support of early deployment of 700MHz ITS in 2014.
779GHz band High-Resolution Radar
ＰＰ ITU R R d tiＰ
制動
Ｐ
制動 歩行者最小検知対象
目標性能
歩行者最小検知対象
目標性能
ITU-R Recommendation M.1452-2
“Millimeter wave vehicular
警報警報
60deg水平検知視野角
50m最大検知距離
1m/s速度分解能
17m/s
0.2m
0.2m
最大検知相対速度
距離分解能
最小検知距離
60deg水平検知視野角
50m最大検知距離
1m/s速度分解能
17m/s
0.2m
0.2m
最大検知相対速度
距離分解能
最小検知距離 collision avoidance radars and radiocommunicationsystems for intelligent transport system applications”
Detection of pedestrians when car runs at high speedDetection of pedestrians
◆ Pursuit of Higher Resolution and Longer Distance for detecting potential accidents
p y pp
Type of Radar Frequency Bandwidth (Max)
Output Power Antenna Gain
Resolution Measurement Distance
Operation Permitted
22 24 2 GH
【Radar Standards in Japan】
UWB 22－29 GHz 4750 MHz -41.3 dBm/MHz － 20cm 30 m 22 – 24.25 GHz:Until 2016
76 GHz 76－77 GHz 500 MHz 10 mW 40 dBi 1 – 2m 200 m No time limit
79 GHz [77－81] GHz 4 GHz 10mW 35dBi 20cm 70 m No time limit
79GHz radar can detect and identify smaller obstacles within any rangeand it has become available in Japan since Dec 2012.
879GHz band High-Resolution Radar Spectrum AllocationsSpectrum Allocations
RADIO ASTRONOMYRADIO ASTRONOMY AM
ATE
UA
MA
TEU
SA
TELLIT U
RR-
TE
76.0 GHz77.0 77.5 78.0 79.0 81.0
RADIOLOCATIONRADIOLOCATION
Spectrum allocation for radar system as an application in Europe
Jan 2012Geneva
A d It f WRC 15
WRC‐12
Status in ITU-RStatus in ITU-R As of January 2014
Agenda Item for WRC ‐15
WRC‐15Oct-Nov 2015
Primary Spectrum Allocation
New high‐resolution radar uses 4 GHz bandwidth in 77‐81 GHzGlobal spectrum allocation for the radar should be considered at WRC‐15.
9ITS in ITU-RStudy Period: 2012 2015Study Period: 2012 ‐ 2015
ITU
ITU‐T ITU‐D
WRC RA
ITU‐R
SG1
Terrestrial Services (Dr. Hashimoto, Japan)
World Radio ConferenceRadiocommunications Assembly
SG5
WP5B
WG1SG: Study Group
WP: Working Party
WG: Working Group
Land Mobile Services (Dr. Costa, Canada)SG5
WP5A
WP5D
WG5
SG 7
WP5C
ITS(Mr Oyama Japan)
SWG2
SWG1
New Technology
Cognitive radio(Dr. Matinmikko, Finland)
SG 7 (Mr. Oyama, Japan)gy(Dr. Yoshino, Japan)
JTG4‐5‐6‐7
10Cooperation between Europe and Japan
CAMCAMJARI* reviews
ETSI - ITS Forum
CAM: Co-operative Awareness Messages
DENM:
CAM: Co-operative Awareness Messages
DENM:
ETSI standards (Japan, Feb 2013)
DENM: Decentralized Environmental Notification basic Service Message
DENM: Decentralized Environmental Notification basic Service Message
ITU-R Recommendation M.[V2X]“Radio interface standards of V2V and V2I communicationITU-R Recommendation M.[V2X]“Radio interface standards of V2V and V2I communication
Create ITU-R recommendation (M 2013) Radio interface standards of V2V and V2I communication
for ITS applications”Radio interface standards of V2V and V2I communicationfor ITS applications”
(May 2013)
* JARI: Japan Automobile Research Institute
115.8GHz band Interference study: ETC/ITS Spot
ETC and ITS Spot are essential nowadays in Japan
• ETC in Japan: in service since March 2001 (ITS Spot service March 2011)
• ETC & ITS Spot: OBU: 58.5 millionPopularity on toll roads: 89.3% (7 million vehicles per day) Source: MLIT website
RSU
Desired signal ：S Desired signal ：S
RSU
Popularity on toll roads: 89.3% (7 million vehicles per day) Source: MLIT website
The radio interferences onThe radio interferences on
OBUInterference signal：I OBU
Interference signal：I
The radio interferences on 5.8GHz may make these systems less reliable and become a serious issue in
The radio interferences on 5.8GHz may make these systems less reliable and become a serious issue in
RLAN (AP or ST)
RLAN (AP or ST)
Case 1Desired signal：Down
Interference signal: AP or ST
Case 2Desired signal：Up
Interference signal: AP or ST
Japan, other Asia-Pacific regions (Region 3), and even Europe (Region 1).
Japan, other Asia-Pacific regions (Region 3), and even Europe (Region 1).
(In vehicle) (In vehicle)
Possible cases having an interference
12Summary
1. ITS radio communications have been developing in accordance with the New ICT Strategy
2. 700MHz ITS: V2I and V2V servicesto be introduced in Japan soonp
3. 79GHz high-resolution automotive radarto be deployed worldwide after WRC-15to be deployed worldwide after WRC 15
4. ITU-R: ITS related issues have been reviewedunder international cooperationunder international cooperation
5. Europe and Japan have been working together toward the next generation ITSthe next generation ITS
1321st ITS World Congress
“R i ti T t ti i C t d W ld”“Reinventing Transportation in our Connected World”
September 7 ‐ 11, 2014 Cobo Center, Michigan http://itsworldcongress.org
Executive Session: ITS radiocommunication Today & Future Executive Session: ITS radiocommunication Today & Future
p , , g p // g g
Special Interest Session (Proposed): Radiocommunication Technologies for Advanced ITSSpecial Interest Session (Proposed): Radiocommunication Technologies for Advanced ITS
MIC keenly participates in the ITS World Congress in Detroit.
