ETSI-ITS-CDD.md

### <a name="DangerousGoodsExtended"></a>DangerousGoodsExtended
 This DF provides a description of dangerous goods being carried by a heavy vehicle.

 It shall include the following components:

Fields:
* dangerousGoodsType [**DangerousGoodsBasic**](#DangerousGoodsBasic) <br>
  Type of dangerous goods.


* unNumber **INTEGER**  (0..9999)<br>
  a 4-digit number that identifies the substance of the dangerous goods as specified in
   United Nations Recommendations on the Transport of Dangerous Goods - Model Regulations [i.4],


   
* elevatedTemperature **BOOLEAN** <br>
  whether the carried dangerous goods are transported at high temperature.
   If yes, the value shall be set to TRUE,


   
* tunnelsRestricted **BOOLEAN** <br>
  whether the heavy vehicle carrying dangerous goods is restricted to enter tunnels.
   If yes, the value shall be set to TRUE,


   
* limitedQuantity **BOOLEAN** <br>
  whether the carried dangerous goods are packed with limited quantity.
   If yes, the value shall be set to TRUE,


   
* emergencyActionCode [**IA5String**](#IA5String)  (SIZE (1..24)) OPTIONAL<br>
  physical signage placard at the vehicle that carries information on how an emergency
   service should deal with an incident. This component is optional; it shall be present if the information is available.


   
* phoneNumber [**PhoneNumber**](#PhoneNumber)  OPTIONAL<br>
  contact phone number of assistance service in case of incident or accident.
   This component is optional, it shall be present if the information is available.


   
* companyName [**UTF8String**](#UTF8String)  (SIZE (1..24)) OPTIONAL<br>
  name of company that manages the transportation of the dangerous goods.
   This component is optional; it shall be present if the information is available.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Vehicle information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _V1.3.1_
```asn1
DangerousGoodsExtended ::= SEQUENCE {
    dangerousGoodsType      DangerousGoodsBasic,
    unNumber                INTEGER (0..9999),
    elevatedTemperature     BOOLEAN,
    tunnelsRestricted       BOOLEAN,
    limitedQuantity         BOOLEAN,
    emergencyActionCode     IA5String (SIZE (1..24)) OPTIONAL,
    phoneNumber             PhoneNumber OPTIONAL,
    companyName             UTF8String (SIZE (1..24)) OPTIONAL,
    ...
}
```

### <a name="DeltaReferencePosition"></a>DeltaReferencePosition
 This DF defines a geographical point position as a 3 dimensional offset position to a geographical reference point.

 It shall include the following components:

Fields:
* deltaLatitude [**DeltaLatitude**](#DeltaLatitude) <br>
  A delta latitude offset with regards to the latitude value of the reference position.


* deltaLongitude [**DeltaLongitude**](#DeltaLongitude) <br>
  A delta longitude offset with regards to the longitude value of the reference position.


   
* deltaAltitude [**DeltaAltitude**](#DeltaAltitude) <br>
  A delta altitude offset with regards to the altitude value of the reference position.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _V1.3.1_
```asn1
DeltaReferencePosition ::= SEQUENCE {
    deltaLatitude     DeltaLatitude,
    deltaLongitude    DeltaLongitude,
    deltaAltitude     DeltaAltitude
}
```


### <a name="DigitalMap"></a>DigitalMap
 This DF represents a portion of digital map. It shall contain a list of waypoints [**ReferencePosition**](#ReferencePosition).
 

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _V1.3.1_
```asn1
DigitalMap ::= SEQUENCE (SIZE(1..256)) OF ReferencePosition
```

### <a name="EllipticalShape"></a>EllipticalShape
 
 This DF represents the shape of an elliptical area or right elliptical cylinder that is centred on the shape´s reference point. 

 It shall include the following components:

Fields:
* shapeReferencePoint [**CartesianPosition3d**](#CartesianPosition3d)  OPTIONAL<br>
  optional reference point which represents the centre of the ellipse, relative to an externally specified reference position. 
   If this component is absent, the externally specified reference position represents the shape´s  reference point. 


* semiMajorAxisLength [**StandardLength12b**](#StandardLength12b) <br>
  half length of the major axis of the ellipse.


   
* semiMinorAxisLength [**StandardLength12b**](#StandardLength12b) <br>
  half length of the minor axis of the ellipse.


   
* orientation [**Wgs84AngleValue**](#Wgs84AngleValue)  OPTIONAL<br>
  the optional orientation of the major axis of the ellipse in the WGS84 coordinate system.


   
* height [**StandardLength12b**](#StandardLength12b)  OPTIONAL<br>
  the optional height, present if the shape is a right elliptical cylinder extending in the positive z-axis.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
EllipticalShape  ::= SEQUENCE {
    shapeReferencePoint    CartesianPosition3d OPTIONAL,
    semiMajorAxisLength    StandardLength12b,
    semiMinorAxisLength    StandardLength12b,
    orientation            Wgs84AngleValue OPTIONAL,
    height                 StandardLength12b OPTIONAL
}
```

### <a name="EuVehicleCategoryCode"></a>EuVehicleCategoryCode
 
 This DF represents a vehicle category according to the UNECE/TRANS/WP.29/78/Rev.4 [i.16].
 The following options are available:

Fields:
* euVehicleCategoryL [**EuVehicleCategoryL**](#EuVehicleCategoryL) <br>
  indicates a vehicle in the L category.


* euVehicleCategoryM [**EuVehicleCategoryM**](#EuVehicleCategoryM) <br>
  indicates a vehicle in the M category.


     
* euVehicleCategoryN [**EuVehicleCategoryN**](#EuVehicleCategoryN) <br>
  indicates a vehicle in the N category.


     
* euVehicleCategoryO [**EuVehicleCategoryO**](#EuVehicleCategoryO) <br>
  indicates a vehicle in the O category.


      
* euVehicleCategoryT **NULL** <br>
  indicates a vehicle in the T category.


      
* euVehicleCategoryG **NULL** <br>
  indicates a vehicle in the G category.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Vehicle information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
EuVehicleCategoryCode ::= CHOICE {
	euVehicleCategoryL    EuVehicleCategoryL,  
	euVehicleCategoryM    EuVehicleCategoryM,  
	euVehicleCategoryN    EuVehicleCategoryN,   
	euVehicleCategoryO    EuVehicleCategoryO,   
	euVehicleCategoryT    NULL,
	euVehicleCategoryG    NULL    
	}
```


### <a name="EventHistory"></a>EventHistory
 The DF shall contain a list of [**EventPoint**](#EventPoint).  

 The eventPosition of each [**EventPoint**](#EventPoint) is defined with respect to the previous [**EventPoint**](#EventPoint) in the list. 
 Except for the first [**EventPoint**](#EventPoint) which is defined with respect to a position outside of the context of this DF.
 

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information Traffic information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Generalized the semantics in V2.1.1_

>>>
NOTE: this DF is kept for backwards compatibility reasons only. It is recommended to use the [**EventZone**](#EventZone) instead.
>>>
```asn1
EventHistory::= SEQUENCE (SIZE(1..23)) OF EventPoint
```

### <a name="EventPoint"></a>EventPoint
 This DF provides information related to an event at a defined position.

 It shall include the following components:

Fields:
* eventPosition [**DeltaReferencePosition**](#DeltaReferencePosition) <br>
  offset position of a detected event point to a defined position. 


* eventDeltaTime [**PathDeltaTime**](#PathDeltaTime)  OPTIONAL<br>
  optional time travelled by the detecting ITS-S since the previous detected event point.


   
* informationQuality [**InformationQuality**](#InformationQuality) <br>
  Information quality of the detection for this event point.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information Traffic information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _generalized the semantics in V2.1.1_
```asn1
EventPoint ::= SEQUENCE {
    eventPosition         DeltaReferencePosition,
    eventDeltaTime        PathDeltaTime OPTIONAL,
    informationQuality    InformationQuality
}
```


### <a name="EventZone"></a>EventZone
 The DF shall contain a list of [**EventPoint**](#EventPoint), where all [**EventPoint**](#EventPoint) either contain the COMPONENT eventDeltaTime 
 or do not contain the COMPONENT eventDeltaTime.  

 The eventPosition of each [**EventPoint**](#EventPoint) is defined with respect to the previous [**EventPoint**](#EventPoint) in the list. 
 Except for the first [**EventPoint**](#EventPoint) which is defined with respect to a position outside of the context of this DF.
 

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information Traffic information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1 based on EventHistory_
```asn1
EventZone::= EventHistory
   ((WITH COMPONENT (WITH COMPONENTS {..., eventDeltaTime PRESENT})) |
    (WITH COMPONENT (WITH COMPONENTS {..., eventDeltaTime ABSENT})))
```

### <a name="GeneralizedLanePosition"></a>GeneralizedLanePosition
 This DF indicates a transversal position in relation to the different lanes of the road. 
 It is an extension of DE_LanePosition to cover locations (sidewalks, bicycle paths), where Vehicle ITS-S would normally not be present. 

 The following options are available:

Fields:
* trafficLanePosition [**LanePosition**](#LanePosition) <br>
  a position on a traffic lane. 


* nonTrafficLanePosition [**LanePositionAndType**](#LanePositionAndType) <br>
  a position on a lane which is not a traffic lane.


   
* trafficIslandPosition [**TrafficIslandPosition**](#TrafficIslandPosition) <br>
  a position on a traffic island


   
* mapPosition [**MapPosition**](#MapPosition) <br>
  a position on a lane identified in a MAPEM.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Road Topology information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
GeneralizedLanePosition::= CHOICE {
    trafficLanePosition       LanePosition,
    nonTrafficLanePosition    LanePositionAndType,
    trafficIslandPosition     TrafficIslandPosition,
    mapPosition               MapPosition,
    ...
}
```

### <a name="Heading"></a>Heading
 This DF represents the Heading in a WGS84 co-ordinates system.
 The specific WGS84 coordinate system is specified by the corresponding standards applying this DE.

 It shall include the following components:

Fields:
* headingValue [**HeadingValue**](#HeadingValue) <br>
  the heading value.


* headingConfidence [**HeadingConfidence**](#HeadingConfidence) <br>
  the confidence value of the heading value with a predefined confidence level.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Kinematics Information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Description revised in V2.1.1_

>>>
NOTE: this DF is kept for backwards compatibility reasons only. It is recommended to use the [**Wgs84Angle**](#Wgs84Angle) instead.
>>>
```asn1
Heading ::= SEQUENCE {
    headingValue         HeadingValue,
    headingConfidence    HeadingConfidence
}
```

### <a name="HeadingChangeIndication"></a>HeadingChangeIndication
 This DF  provides  information  associated to heading  change indicators  such as  a  change  of  direction.

 It shall include the following components:

Fields:
* direction [**TurningDirection**](#TurningDirection) <br>
  the direction of heading change value.


* actionDeltaTime [**DeltaTimeTenthOfSecond**](#DeltaTimeTenthOfSecond) <br>
  the period over which a direction change action is performed. 


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Kinematics Information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
HeadingChangeIndication ::= SEQUENCE {
    direction          TurningDirection,
    actionDeltaTime    DeltaTimeTenthOfSecond,
    ...
}
```

### <a name="InterferenceManagementChannel"></a>InterferenceManagementChannel
 This DF represents a frequency channel 

 It shall include the following components:

Fields:
* centreFrequency **INTEGER**  (1 .. 99999)<br>
  the centre frequency of the channel in 10^(exp+2) Hz (where exp is exponent)


* channelWidth **INTEGER**  (0 .. 9999)<br>
  width of the channel in 10^exp Hz (where exp is exponent)


   
* exponent **INTEGER**  (0 .. 15)<br>
  exponent of the power of 10 used in the calculation of the components above.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
InterferenceManagementChannel ::= SEQUENCE {
    centreFrequency    INTEGER (1 .. 99999),
    channelWidth       INTEGER (0 .. 9999),
    exponent           INTEGER (0 .. 15) 
}
```

### <a name="InterferenceManagementZone"></a>InterferenceManagementZone
 
 This DF represents a zone  inside which the ITS communication should be restricted in order to manage interference.

 It shall include the following components:

Fields:
* zoneDefinition [**InterferenceManagementZoneDefinition**](#InterferenceManagementZoneDefinition) <br>
  contains the geographical definition of the zone.


* managementInfo [**InterferenceManagementInfo**](#InterferenceManagementInfo) <br>
  contains interference management information applicable in the zone defined in the component zoneDefinition.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
InterferenceManagementZone ::= SEQUENCE {
	zoneDefinition    InterferenceManagementZoneDefinition,
	managementInfo    InterferenceManagementInfo
}
```

### <a name="InterferenceManagementZoneDefinition"></a>InterferenceManagementZoneDefinition
 This DF represents the geographical definition of the zone where band sharing occurs. 

 It shall include the following components:

Fields:
* interferenceManagementZoneLatitude [**Latitude**](#Latitude) <br>
  Latitude of the centre point of the interference management zone.


* interferenceManagementZoneLongitude [**Longitude**](#Longitude) <br>
  Longitude of the centre point of the interference management zone.


    
* interferenceManagementZoneId [**ProtectedZoneId**](#ProtectedZoneId)  OPTIONAL<br>
  optional identification of the interference management zone. 


    
* interferenceManagementZoneShape [**Shape**](#Shape)  (WITH COMPONENTS{..., radial ABSENT, radialShapes ABSENT}) OPTIONAL<br>
  shape of the interference management zone placed at the centre point. 


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
InterferenceManagementZoneDefinition::= SEQUENCE{     
    interferenceManagementZoneLatitude     Latitude, 
    interferenceManagementZoneLongitude    Longitude, 
    interferenceManagementZoneId           ProtectedZoneId OPTIONAL,
    interferenceManagementZoneShape        Shape (WITH COMPONENTS{..., radial ABSENT, radialShapes ABSENT}) OPTIONAL,
    ...
}
```


### <a name="InterferenceManagementInfo"></a>InterferenceManagementInfo
 This DF shall contain a list of up to 16 definitions containing interference management information, per affected frequency channels.
 

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information. 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
InterferenceManagementInfo::= SEQUENCE (SIZE(1..16,...)) OF InterferenceManagementInfoPerChannel
```

### <a name="InterferenceManagementInfoPerChannel"></a>InterferenceManagementInfoPerChannel
 This DF contains interference management information for one affected frequency channel.

 It shall include the following components:

Fields:
* interferenceManagementChannel [**InterferenceManagementChannel**](#InterferenceManagementChannel) <br>
  frequency channel for which the zone should be applied interference management 


* interferenceManagementZoneType [**InterferenceManagementZoneType**](#InterferenceManagementZoneType) <br>
  type of the interference management zone. 


   
* interferenceManagementMitigationType [**MitigationForTechnologies**](#MitigationForTechnologies)  OPTIONAL<br>
  optional type of the mitigation to be used in the interference management zone. 
   In the case where no mitigation should be applied by the ITS-S, this is indicated by the field interferenceManagementMitigationType being absent.


   
* expiryTime [**TimestampIts**](#TimestampIts)  OPTIONAL<br>
  optional time at which the validity of the interference management communication zone will expire. 
   This component is present when the interference management is temporarily valid


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
InterferenceManagementInfoPerChannel ::= SEQUENCE {
    interferenceManagementChannel           InterferenceManagementChannel,
    interferenceManagementZoneType          InterferenceManagementZoneType,
    interferenceManagementMitigationType    MitigationForTechnologies OPTIONAL,
    expiryTime                              TimestampIts OPTIONAL, 
    ...
}
```


### <a name="InterferenceManagementZones"></a>InterferenceManagementZones
 This DF shall contain a list of up to 16 interference  management zones.  

 **EXAMPLE**: An interference management communication zone may be defined around a CEN DSRC road side equipment or an urban rail operational area.
 

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
InterferenceManagementZones ::= SEQUENCE (SIZE(1..16), ...) OF InterferenceManagementZone
```

### <a name="IntersectionReferenceId"></a>IntersectionReferenceId
 This DF represents a unique id for an intersection, in accordance with ETSI TS 103 301 [i.15].

 It shall include the following components:

Fields:
* region [**Identifier2B**](#Identifier2B)  OPTIONAL<br>
  the optional identifier of the entity that is responsible for the region in which the intersection is placed.
   It is the duty of that entity to guarantee that the [**Id**](#Id) is unique within the region.


* id [**Identifier2B**](#Identifier2B) <br>
  the identifier of the intersection


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Road topology information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_

>>>
NOTE: when the component region is present, the IntersectionReferenceId is guaranteed to be globally unique.
>>>
```asn1
IntersectionReferenceId ::= SEQUENCE {
    region    Identifier2B OPTIONAL,
    id        Identifier2B
}
```


### <a name="ItineraryPath"></a>ItineraryPath
 This DF shall contain  a list of waypoints [**ReferencePosition**](#ReferencePosition).
 

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Editorial update in V2.1.1_
```asn1
ItineraryPath ::= SEQUENCE SIZE(1..40) OF ReferencePosition
```

### <a name="ItsPduHeader"></a>ItsPduHeader
 This DF represents a common message header for application and facilities layer messages.
 It is included at the beginning of an ITS message as the message header.

 It shall include the following components:

Fields:
* protocolVersion [**OrdinalNumber1B**](#OrdinalNumber1B) <br>
  version of the ITS message.


* messageId [**MessageId**](#MessageId) <br>
  type of the ITS message.


   
* stationId [**StationId**](#StationId) <br>
  the identifier of the ITS-S that generated the ITS message.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _update in V2.1.1: messageID and stationID changed to messageId and stationId; messageId is of type MessageId._
```asn1
ItsPduHeader ::= SEQUENCE {
    protocolVersion    OrdinalNumber1B,
    messageId          MessageId,
    stationId          StationId
}
```

### <a name="LanePositionAndType"></a>LanePositionAndType
 This DF indicates a transversal position in resolution of lanes and the associated lane type.

 It shall include the following components:

Fields:
* transversalPosition [**LanePosition**](#LanePosition) <br>
  the transversal position.


* laneType [**LaneType**](#LaneType) <br>
  the type of the lane identified in the component transversalPosition.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: GeoReference information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
LanePositionAndType::= SEQUENCE {
    transversalPosition    LanePosition,
    laneType               LaneType,
    ...
}
```

### <a name="LateralAcceleration"></a>LateralAcceleration
 This DF indicates the vehicle acceleration at lateral direction and the confidence value of the lateral acceleration.

 It shall include the following components:

Fields:
* lateralAccelerationValue [**LateralAccelerationValue**](#LateralAccelerationValue) <br>
  lateral acceleration value at a point in time.


* lateralAccelerationConfidence [**AccelerationConfidence**](#AccelerationConfidence) <br>
  confidence value of the lateral acceleration value.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Vehicle information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Description revised in V2.1.1_

>>>
NOTE: this DF is kept for backwards compatibility reasons only. It is recommended to use [**Acceleration1d**](#Acceleration1d) instead.
>>>
```asn1
LateralAcceleration ::= SEQUENCE {
    lateralAccelerationValue         LateralAccelerationValue,
    lateralAccelerationConfidence    AccelerationConfidence
}
```

### <a name="LongitudinalAcceleration"></a>LongitudinalAcceleration
 This DF indicates the vehicle acceleration at longitudinal direction and the confidence value of the longitudinal acceleration.

 It shall include the following components:

Fields:
* longitudinalAccelerationValue [**LongitudinalAccelerationValue**](#LongitudinalAccelerationValue) <br>
  longitudinal acceleration value at a point in time.


* longitudinalAccelerationConfidence [**AccelerationConfidence**](#AccelerationConfidence) <br>
  confidence value of the longitudinal acceleration value.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Vehicle information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _V1.3.1_

>>>
NOTE: this DF is kept for backwards compatibility reasons only. It is recommended to use [**Acceleration1d**](#Acceleration1d) instead.
>>>
```asn1
LongitudinalAcceleration ::= SEQUENCE {
    longitudinalAccelerationValue         LongitudinalAccelerationValue,
    longitudinalAccelerationConfidence    AccelerationConfidence
}
```

### <a name="LongitudinalLanePosition"></a>LongitudinalLanePosition
 This DF represents the estimated position along the longitudinal length of a particular lane. 

 It shall include the following components:

Fields:
* longitudinalLanePositionValue [**LongitudinalLanePositionValue**](#LongitudinalLanePositionValue) <br>
  the mean value of the longitudinal position within a particular length.


* longitudinalLanePositionConfidence [**LongitudinalLanePositionConfidence**](#LongitudinalLanePositionConfidence) <br>
  The confidence value associated to the value.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Road topology information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _created in V2.1.1_
```asn1
LongitudinalLanePosition ::= SEQUENCE {
    longitudinalLanePositionValue         LongitudinalLanePositionValue,
    longitudinalLanePositionConfidence    LongitudinalLanePositionConfidence
}
```


### <a name="LowerTriangularPositiveSemidefiniteMatrices"></a>LowerTriangularPositiveSemidefiniteMatrices
 This DF shall contain a list of a lower triangular positive semi-definite matrices.

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Sensing information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
LowerTriangularPositiveSemidefiniteMatrices::= SEQUENCE SIZE (1..4) OF LowerTriangularPositiveSemidefiniteMatrix
```

### <a name="LowerTriangularPositiveSemidefiniteMatrix"></a>LowerTriangularPositiveSemidefiniteMatrix
 This DF represents a lower triangular positive semi-definite matrix. 

 It shall include the following components: 



 The number of columns to be included "k" is equal to the number of included components "n" indicated by componentsIncludedIntheMatrix minus 1: k = n-1.
 These components shall be included in the order or their appearance in componentsIncludedIntheMatrix.
 Each column "i" of the lowerTriangularCorrelationMatrixColumns contains k-(i-1) values.

Fields:
* componentsIncludedIntheMatrix [**MatrixIncludedComponents**](#MatrixIncludedComponents) <br>
  the indication of which components of a [**PerceivedObject**](#PerceivedObject) are included in the matrix. 
   This component also implicitly indicates the number n of included components which defines the size (n x n) of the full correlation matrix "A".


* matrix [**LowerTriangularPositiveSemidefiniteMatrixColumns**](#LowerTriangularPositiveSemidefiniteMatrixColumns) <br>
  the list of cells of the lower triangular positive semi-definite matrix ordered by columns and by rows. 


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Sensing information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
LowerTriangularPositiveSemidefiniteMatrix ::= SEQUENCE{
    componentsIncludedIntheMatrix   MatrixIncludedComponents,
    matrix                          LowerTriangularPositiveSemidefiniteMatrixColumns
}
```


### <a name="LowerTriangularPositiveSemidefiniteMatrixColumns"></a>LowerTriangularPositiveSemidefiniteMatrixColumns
 This DF represents the columns of a lower triangular positive semi-definite matrix, each column not including the main diagonal cell of the matrix.
 Given a matrix "A" of size n x n, the number of [**CorrelationColumn**](#CorrelationColumn) to be included in the lower triangular matrix is k=n-1.

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Sensing information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
LowerTriangularPositiveSemidefiniteMatrixColumns ::= SEQUENCE SIZE (1..13) OF CorrelationColumn
```

### <a name="MapPosition"></a>MapPosition
 This DF indicates a position on a topology description transmitted in a MAPEM according to ETSI TS 103 301 [i.15].

 It shall include the following components:

Fields:
* mapReference [**MapReference**](#MapReference)  OPTIONAL<br>
  optionally identifies the MAPEM containing the topology information.
   It is absent if the MAPEM topology is known from the context.


* laneId [**Identifier1B**](#Identifier1B)  OPTIONAL<br>
  optionally identifies the lane in the road segment or intersection topology on which the position is located.


   
* connectionId [**Identifier1B**](#Identifier1B)  OPTIONAL<br>
  optionally identifies the connection inside the conflict area of an intersection, i.e. it identifies a trajectory for travelling through the
   conflict area of an intersection which connects e.g an ingress with an egress lane.


   
* longitudinalLanePosition [**LongitudinalLanePosition**](#LongitudinalLanePosition)  OPTIONAL<br>
  optionally indicates the longitudinal offset of the map-matched position of the object along the lane or connection.


    

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Road topology information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
MapPosition ::= SEQUENCE {
    mapReference                MapReference OPTIONAL,
    laneId                      Identifier1B OPTIONAL,
    connectionId                Identifier1B OPTIONAL, 
    longitudinalLanePosition    LongitudinalLanePosition OPTIONAL,
    ...
}
   ((WITH COMPONENTS {..., laneId PRESENT, connectionId ABSENT }) |
    (WITH COMPONENTS {..., laneId ABSENT, connectionId PRESENT }))
```

### <a name="MapReference"></a>MapReference
 This DF provides the reference to the information contained in a MAPEM according to ETSI TS 103 301 [i.15]. 

 The following options are provided:

Fields:
* roadsegment [**RoadSegmentReferenceId**](#RoadSegmentReferenceId) <br>
  option that identifies the description of a road segment contained in a MAPEM.


* intersection [**IntersectionReferenceId**](#IntersectionReferenceId) <br>
  option that identifies the description of an intersection contained in a MAPEM.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Road topology information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
MapReference::= CHOICE {
	roadsegment     RoadSegmentReferenceId,
	intersection    IntersectionReferenceId
	}
```

### <a name="MessageRateHz"></a>MessageRateHz
 This DE indicates a message rate.



 The specified message rate is: mantissa*(10^exponent)

Fields:
* mantissa **INTEGER**  (1..100)<br>
  indicates the mantissa.


* exponent **INTEGER**  (-5..2)<br>
  indicates the exponent.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Unit**: _Hz_

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
MessageRateHz::= SEQUENCE {
    mantissa    INTEGER (1..100),
    exponent    INTEGER (-5..2)
    }
```

### <a name="MessageSegmentationInfo"></a>MessageSegmentationInfo
 This DF provides information about a message with respect to the segmentation process at the sender.

 It shall include the following components:

Fields:
* totalMsgNo [**CardinalNumber3b**](#CardinalNumber3b) <br>
  indicates the total number of messages that has been used on the transmitter side to encode the information.


* thisMsgNo [**OrdinalNumber3b**](#OrdinalNumber3b) <br>
  indicates the position of the message within of the total set of messages.


   
```asn1
MessageSegmentationInfo ::= SEQUENCE {
    totalMsgNo  CardinalNumber3b,
    thisMsgNo   OrdinalNumber3b
    }
```


### <a name="MitigationForTechnologies"></a>MitigationForTechnologies
 This DF shall contain a list of [**MitigationPerTechnologyClass**](#MitigationPerTechnologyClass).

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_
```asn1
MitigationForTechnologies ::= SEQUENCE (SIZE(1..8)) OF MitigationPerTechnologyClass
```

### <a name="MitigationPerTechnologyClass"></a>MitigationPerTechnologyClass
 This DF represents a set of mitigation parameters for a specific technology, as specified in ETSI TS 103 724 [i.24], clause 7.

 It shall include the following components:

Fields:
* accessTechnologyClass [**AccessTechnologyClass**](#AccessTechnologyClass) <br>
  channel access technology to which this mitigation is intended to be applied.


* lowDutyCycle **INTEGER**  (0 .. 10000) OPTIONAL<br>
  duty cycle limit.


    
* powerReduction **INTEGER**  (0 .. 30) OPTIONAL<br>
  the delta value of power to be reduced.


    
* dmcToffLimit **INTEGER**  (0 .. 1200) OPTIONAL<br>
  idle time limit as defined in ETSI TS 103 175 [i.19].


   
* dmcTonLimit **INTEGER**  (0 .. 20) OPTIONAL<br>
  Transmission duration limit, as defined in ETSI EN 302 571 [i.20].


      

&nbsp;&nbsp;&nbsp;&nbsp;**Unit**: _ms_

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Communication information 

&nbsp;&nbsp;&nbsp;&nbsp;**Revision**: _Created in V2.1.1_

>>>
NOTE: All parameters are optional, as they may not apply to some of the technologies or
 interference management zone types. Specification details are in ETSI TS 103 724 [i.24], clause 7.
>>>
```asn1
MitigationPerTechnologyClass ::= SEQUENCE {
   accessTechnologyClass    AccessTechnologyClass, 
   lowDutyCycle             INTEGER (0 .. 10000) OPTIONAL, 
   powerReduction           INTEGER (0 .. 30) OPTIONAL,
   dmcToffLimit             INTEGER (0 .. 1200) OPTIONAL,   
   dmcTonLimit              INTEGER (0 .. 20) OPTIONAL,   
   ...
}
```

### <a name="ObjectClass"></a>ObjectClass
 This DF indicates both the class and associated subclass that best describes an object.

 The following options are available:

Fields:
* vehicleSubClass [**TrafficParticipantType**](#TrafficParticipantType)  (unknown|passengerCar..tram|agricultural)<br>
  the object is a road vehicle and the specific subclass is specified.


* vruSubClass [**VruProfileAndSubprofile**](#VruProfileAndSubprofile) <br>
  the object is a VRU and the specific subclass is specified.


   
* groupSubClass [**VruClusterInformation**](#VruClusterInformation)  (WITH COMPONENTS{..., clusterBoundingBoxShape ABSENT})<br>
  the object is a VRU group or cluster and the cluster information is specified.


   
* otherSubClass [**OtherSubClass**](#OtherSubClass) <br>
  the object is of a different type than the above and the specific subclass is specified.


   

&nbsp;&nbsp;&nbsp;&nbsp;**Categories**: Sensing information