 |
 |
 |
 |
|
 |
 |
SAE J2735-Draft-Rev28 [issued: 11-10-08]
-
122 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
</xs:restriction>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a MSG called
MSG_SignalRequestMessage <ASN> <XML>. In addition, this item may be used by data structures
in other ITS standards.
Remarks: An unknown of indeterminate value shall be set to zero.
7.40 Data Element: DE_DSRC MessageID
Use: The DSRC Message ID is an element used to define which type of message follows in the messages
of this standard. The values for ACID and ACM of a given application are contained in a lower layer of
the WSMP process, and along with the message itself, are presented to the application after being
transported as a stream of bytes. This data element is typically the first value inside the sequence and is
used to tell the receiving application how to interpret the remaining bytes (i.e. what message structure has
been used).
ASN.1 Representation:
DSRCmsgID ::= ENUMERATED {
reserved (0),
alaCarteMessage (1), -- ACM
basicSafetyMessage (2), -- BSM, heartbeat msg
basicSafetyMessageVerbose (3), -- keep as id?
commonSafetyRequest (4), -- CSR
emergencyVehicleAlert (5), -- EVA
intersectionCollisionAlert (6), -- ICA
mapData (7), -- MAP, GID, intersections
nemaCorrections (8), -- NEMA
probeDataManagement (9), -- PDM
probeVehicleData (10), -- PVD
roadSideAlert (11), -- RSA
rtcmCorrections (12), -- RTCM
signalPhaseAndTimingMessage (13), -- SPAT
signalRequestMessage (14), -- SRM
signalStatusMessage (15), -- SSM
travelerInformation (16), -- TIM
... -- # LOCAL_CONTENT
}
-- values to 127 reserved for std use
-- values 128 to 255 reserved for local use
XML Representation:
<xs:simpleType name="DSRCmsgID" >
<xs:annotation>
<xs:appinfo>
reserved (0)
alaCarteMessage (1) -- ACM
basicSafetyMessage (2) -- BSM ,
basicSafetyMessageVerbose (3) -- keep as id?
commonSafetyRequest (4) -- CSR
emergencyVehicleAlert (5) -- EVA
intersectionCollisionAlert (6) -- ICA
mapData (7) -- MAP ,
nemaCorrections (8) -- NEMA
probeDataManagement (9) -- PDM
probeVehicleData (10) -- PVD
roadSideAlert (11) -- RSA
rtcmCorrections (12) -- RTCM
signalPhaseAndTimingMessage (13) -- SPAT
signalRequestMessage (14) -- SRM
signalStatusMessage (15) -- SSM
travelerInformation (16) -- TIM
</xs:appinfo>
<xs:documentation>