Ron Hochnadel

1
TECHNICAL DESIGN SPECIFICATIONS
Priority Status Presentation 06/18/2009
SAE DSRC Message Framework Subcommittee Status
Report and Update to the SAE DSRC Technical
Committee IEEE P1609 Working Group
Ron Hochnadel [phone]
Neal Probert [phone]
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Agenda

• Charter
• Administration
• Application Programming Interface
• Software Requirements Specification
• Interface Requirements Specification
• Discussion

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Application Programming Interface
ANNEX A

• No formal API is proposed as part of J2735 or
  P1609.
• Having an API is convenient for those groups
  doing joint RD work with equipment from multiple
  vendors
• J2735 API elements (if an API is developed)
• Message priority
• Transmission power level
• Existing APIs PATH, Kapsch, Denso
• Probable APIs IntelliDrive (sm)
• Specialized APIs OmniAir for standards
  interfaces testing
• Considerations for APIs
• ISO Reference Model
• CORBA IIOP

4
Software Requirement Specifications
ISSUES

• No formal SRS as part of J2735 or P1609.
• To be followed by a Software Design Specification
  (SDS) which will define an API.

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Interface Requirement Specifications
TABLE

• IRS Descriptions as part of J2735
• Radio Interface
• Help needed from vendors
• Application Interface
• Data Flow
• Enable SRS and API development as needed.
• Informative to J2735 and P1609

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Packet Header
Discussion
DISCUSSION

• No formal API as part of J2735 or P1609.
• What about ETSI TC-ITS?
• No formal SRS as part of J2735 or P1609.
• IRS Descriptions as part of J2735
• Safety Considerations
• Synchronize with CCH operation
• Force CCH only operation during critical period
• Reduce extraneous chatter of non-safety messages
• Vehicles involved, or all vehicles in range

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Message Framework Status Presentation
Questions Discussion Next DSRC Message
Framework Meeting Date Tuesday, July 21, 2008
Time 100 pm, Eastern Daylight Time
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Teleconference information ---------------------
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Conference call in [phone]
Ron Hochnadel ronh_at_intrass.com
Neal Probert probern_at_ntcna.nissan-usa.com