frequency coordination an aashto service for all public safety
TRANSCRIPT
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Frequency Coordination
An AASHTO service for all Public safety
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Public Safety Radio
• First Responders (Police, Fire and EMS)
• Highway Maintenance
• Traffic Control
• Advisories
• Data
• New services (VII, DSRC, ITS)
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The Role of the Coordinator
The FCC defines frequency coordination as:
“The process of obtaining a frequency that will most effectively meet the applicant’s needs while minimizing interference to licensees already operating in the band”
Many states have only ONE coordinator
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AASHTO Services
• AASHTO can coordinate all Public Safety frequencies: Relieving the local coordinator’s burden Rapidly process applications leading to faster
licensing Competitive Pricing
AASHTO is the Public Safety Frequency Coordinator for the State of California
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Special Committee on Wireless Technology
• Purpose Support Frequency Coordination Needs Input to FCC Rules and Regulations
• SCOWT conferences provide: Training
New Techniques and TechnologiesNew FCC Rules and Regulations
Mentoring Support
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Frequency Coordination
RadioSoft’s full-time staff of RF Engineers and Coordinators
• Deliver complex radio system engineering and design solutions
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Other Options
• Cellular Telephone / Nextel / Pager Only in highly populated areas Easily overloaded in an emergency Inflexible design
• Email – Blackberry Same limitations as Cellular Unsafe to operate while driving
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Commercial vs. Public Safety
• Public Safety Systems cover a geographical area regardless of population
• Commercial networks allocated by population rather than area
• Systems overload / shut down in emergencies
• One-to-One not One-to-Many design• No control
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New Services
• VII – Vehicle to Infrastructure Integration• DSRCS – Dedicated Short-Range
Communications Service• 75 MHz reclaimed from Federal use
1 Control Channel 2 10 MHz Public Safety only channels “Communications involving the safety of life have
access priority over all other DSRC communications.”
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DSRC Issues
• State and Local Governments may have a non-exclusive license for all DSRCS frequencies based on geo-political boundaries (State, County, City)
• All other eligible applicants are issued licenses based on their proposed area of operations which may include nationwide.
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DSRC Issues (2)
Command and Control
• No frequencies assigned for commands No spectrum assigned for talking to RSUs
• No frequencies assigned for reporting No assigned spectrum for the RSUs to talk
back to Central Operations
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The Spectrum Conundrum
• Virtually ALL Public Safety Communications is in 4 Bands
• 700 – 869 MHz Band
• 450 – 512 MHz UHF Band
• 150 – 170 MHz VHF Band 70% of all Licensed Stations are in this Band
• 30 – 50 MHz Low Band