Transcript ITS Communications Update.

GSC9/GRSC_024a
SOURCE:
TIA
TITLE:
ITS Communications Update
AGENDA ITEM:
GRSC-2, Agenda Item 5.7
CONTACT:
T. Russell Shields, Ygomi LLC, Email: [email protected]
Tel: +1.847.577.9800, Fax: +1.408.873.2513
ITS Communications Update
GSC-9, Seoul
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Items for Discussion
• FCC Notice on “Cognitive Radio”
• Status of CALM M5 (WAVE at 5.9 GHz)
• Vehicle safety communications
TIA – Shields – ITS
GSC-9, Seoul
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Software-based Radios and
Software-controlled Antenna Filters
• ITS community has clear interest in this area
– Can help create in-vehicle communications devices that
will function for the service life of the vehicle
– Important for Automatic Crash Notification
• But ITS community not well informed on the subject
• In late 2003, U.S. FCC issued a Notice of Proposed
Rule Making (NPRM) seeking comments on
“Cognitive Radios”
TIA – Shields – ITS
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FCC NPRM Seeks Comment On...
• How to remove regulatory impediments to development and
deployment of smart radio technologies
• How to let unlicensed devices use higher transmission power
in rural and under-served areas.
– Would potentially reduce network infrastructure costs
• How smart radios could facilitate public safety interoperability
– Potential to serve as a communications bridge between two different
radio services
• Specific applications for smart radios, such as mesh networks
and real-time frequency coordination
• Ways the FCC can better accomplish cognitive radios and
smart radio systems
• See http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-322A1.pdf
TIA – Shields – ITS
GSC-9, Seoul
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DSRC at 5.9 GHz  “WAVE”
• Dedicated Short-Range Communications (DSRC) at
5.9 GHz now called WAVE (Wireless Access in
Vehicular Environments)
• Business case for building the 5.9 GHz beacons will
be tested by a U.S. DOT project called VII (Vehicle
Infrastructure Integration)
• Possible applications for public authorities include
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Traffic
Buses
Heavy vehicles
Police / fire / ambulance
Vehicle safety
Emergency response / evacuations.
TIA – Shields – ITS
GSC-9, Seoul
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High Level of Activity
• IEEE 1609
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1609.1: Resource Manager
1609.2: Application Services
1609.3: IP Network Services
1609.4: MAC Extension Services
• IEEE 802.11
• ISO TC204 WG16 (ISO 21210 – CALM M5)
– One of multiple technologies for CALM (Continuous Air
interface for Long and Medium distance)
– Also includes 2.5/3G cellular, 802.11a/g, infrared,
millimeter (62-63 GHz)
TIA – Shields – ITS
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Vehicle Safety Data Communications
• Data communications for vehicle safety requires very high
reliability
– In the advanced countries, new vehicles travel an average of more
than 100 million kilometers between serious accidents
• Data communications can help further reduce serious
accidents
– The error rate for vehicle safety data communications probably needs
to be better than 10-7
– To achieve this error rate, safety data messages should be sent using
at least two different media with substantially different characteristics,
e.g., microwave (5.9 GHz) and millimeter (62-63 GHz)
• To achieve the necessary reliability, the allocated frequencies
should be dedicated to safety and identical across regions
– Vehicle manufacturers should not be faced with slight differences in
data communications in different regions when lives are at stake
TIA – Shields – ITS
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ITS Communications Update
• Informational Note--ITS involving 4.9 GHz: TIA Engineering Committee
TR-8 is taking on the work of developing standards for broadband data
systems (within newly established TIA TR-8.8) involving the 4.9 GHz
spectrum and may have implications or relations to ITS activities.
• Other ITS Reference: TIA Contribution (document) under GSRC-2, Item
5.6, entitled ITS Communications Update.
Thank You!
TIA – Shields – ITS
GSC-9, Seoul
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