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SAE J2735-Draft-Rev26 [issued: 09-18-08] 
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
      </xs:annotation>
      <xs:union>
         <xs:simpleType>
            <xs:restriction base="xs:unsignedInt">
               <xs:minInclusive value="0"/>
               <xs:maxInclusive value="15"/>
            </xs:restriction>
         </xs:simpleType>
         <xs:simpleType>
            <xs:restriction base="xs:string">
               <xs:enumeration value="noFaults"/>
               <xs:enumeration value="noReceivedPackets"/>
               <xs:enumeration value="corruptedMsgs"/>
               <xs:enumeration value="unauthorizedDataReceived"/>
               <xs:enumeration value="item 5"/>
               <xs:enumeration value="item 6"/>
               <xs:enumeration value="item 7"/>
               <xs:enumeration value="item 8"/>
               <xs:enumeration value="item 9"/>
               <xs:enumeration value="item 10"/>
               <xs:enumeration value="item 11"/>
               <xs:enumeration value="item 12"/>
               <xs:enumeration value="item 13"/>
               <xs:enumeration value="item 14"/>
               <xs:enumeration value="item 15"/>
               <xs:enumeration value="item 16"/>
            </xs:restriction>
         </xs:simpleType >
      </xs:union>
</xs:simpleType>
In addition, this item may be used by data structures in other ITS standards.
7.132 Data Element: DE_TemporaryID
Use: This is the 6 byte random MAC/IP address, called the temporary ID, since the MAC address is
randomly generated at various times according to a timer, or vehicle start-up, or possibly other events.  In
essence, the MAC value for a mobile OBU device (unlike a typical wireless or wired 802 device) will
periodically change to ensure the overall anonymity of the vehicle.  Because this value is used as a means
to identify the local vehicles that are interacting during an encounter, it is used in the message set.
ASN.1 Representation:
TemporaryID ::= OCTET STRING (SIZE(4)) -- a 4 byte string array
XML Representation:
<xs:complexType name="TemporaryID" >
   <xs:simpleContent>
      <xs:annotation>
         <xs:documentation>       
            a 4 byte string array
         </xs:documentation>
      </xs:annotation>
      <xs:extension base="TemporaryID-string" >
         <xs:attribute name="EncodingType" use="required">
           <xs:simpleType>
              <xs:restriction base="xs:NMTOKEN">
                 <xs:enumeration value="base64Binary"/>
              </xs:restriction>
           </xs:simpleType>
         </xs:attribute>
      </xs:extension>
   </xs:simpleContent>
</xs:complexType>
<xs:simpleType name="TemporaryID-string">
   <xs:restriction base="xs:base64Binary">
      <xs:length value="6"/>
   </xs:restriction>
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