Documentation update

# <a name="CAM-PDU-Descriptions"></a>ASN.1 module CAM-PDU-Descriptions

OID: _{itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) camPduRelease2 (103900) major-version-2 (2) minor-version-1 (1)}_

CAM module for TS 103 900 V2.2.1 (0.0.5) integrating:

- ITSWG1(24)000011r8 containing the following:

	ExtensionContainers: 

	- GeneralizedLanePositionsContainer

	- eHorizonLocationSharingContainer

	- PathPredictionContainer

	- TwoWheelerContainer

- ITSWG1(24)000002r1 containing the Very Low Frequency Container

- ITSWG1(24)000163r1 VehicleMovementControlContainer

## Imports:

* **[ETSI-ITS-CDD](ETSI-ITS-CDD.md)** *{itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) 102894 cdd (2) major-version-4 (4) minor-version-2 (2)} WITH SUCCESSORS*<br/>

 It shall include the following componenets:

Fields:

* _header_ of type [**ItsPduHeader**](ETSI-ITS-CDD.md#ItsPduHeader)  (WITH COMPONENTS {... , protocolVersion (2), messageId(cam)})<br>

  the header of the CAM PDU.

 It shall include the following components:

Fields:

* _generationDeltaTime_ of type [**GenerationDeltaTime**](ETSI-ITS-CDD.md#GenerationDeltaTime) <br>

  Time corresponding to the time of the reference position in the CAM, considered as time of the CAM generation.

### <a name="CamParameters"></a>CamParameters

Fields:

* _basicContainer_ of type [**BasicContainer**](ETSI-ITS-CDD.md#BasicContainer) <br>

  the mandatory basic container of the CAM.

 It shall include the following components:

Fields:

* _basicVehicleContainerHighFrequency_ of type [**BasicVehicleContainerHighFrequency**](#BasicVehicleContainerHighFrequency) <br>

  The mandatory high frequency container of the CAM when the originating ITS-S is of the type vehicle ITS-S.

 The low frequency container of the CAM when the originating ITS-S is of the type vehicle ITS-S. It shall be present as defined in clause 6.1.2.

Fields:

* _basicVehicleContainerLowFrequency_ of type [**BasicVehicleContainerLowFrequency**](#BasicVehicleContainerLowFrequency)  (WITH COMPONENTS {..., pathHistory (SIZE (0..23))})<br>

```asn1

LowFrequencyContainer ::= CHOICE {

 It shall include the following components:

Fields:

* _publicTransportContainer_ of type [**PublicTransportContainer**](#PublicTransportContainer) <br>

  If the vehicleRole component is set to publicTransport(1) this container shall be present.

 It shall include the following components:

Fields:

* _heading_ of type [**Heading**](ETSI-ITS-CDD.md#Heading) <br>

  It represent the heading and heading accuracy of the vehicle movement of the originating ITS-S with regards to the true north. 

   The heading accuracy provided in the heading Confidence value shall provide the accuracy of the measured vehicle heading with a confidence level 

 It shall include the following components:

Fields:

* _vehicleRole_ of type [**VehicleRole**](ETSI-ITS-CDD.md#VehicleRole) <br>

  represent the role of the vehicle ITS-S that originates the CAM. Only values 0 to 7 shall be used.

 It shall include the following components:

Fields:

* _embarkationStatus_ of type [**EmbarkationStatus**](ETSI-ITS-CDD.md#EmbarkationStatus) <br>

  It indicates whether the passenger embarkation is currently ongoing. 

 It shall include the following components:

Fields:

* _specialTransportType_ of type [**SpecialTransportType**](ETSI-ITS-CDD.md#SpecialTransportType) <br>

  which indicates whether the originating ITS-S is mounted on a special transport vehicle with heavy or oversized load

   or both. It shall be present if the data is available in originating ITS-S.

 It shall include the following components:

Fields:

* _dangerousGoodsBasic_ of type [**DangerousGoodsBasic**](ETSI-ITS-CDD.md#DangerousGoodsBasic) <br>

  identifies the type of the dangerous goods transported by the vehicle that originates the CAM. It shall be present if

   the data is available in the originating ITS S.

 It shall include the following components:

Fields:

* _roadworksSubCauseCode_ of type [**RoadworksSubCauseCode**](ETSI-ITS-CDD.md#RoadworksSubCauseCode)  OPTIONAL<br>

  The optional component, in case the originating ITS-S is mounted to a vehicle ITS-S participating to roadwork. It 

   provides information on the type of roadwork that it is currently undertaking. This component shall be present if the data is available in 

 It shall include the following components:

Fields:

* _lightBarSirenInUse_ of type [**LightBarSirenInUse**](ETSI-ITS-CDD.md#LightBarSirenInUse) <br>

  it indicates whether light-bar or a siren is in use by the vehicle originating the CAM.

 It shall include the following components:

Fields:

* _lightBarSirenInUse_ of type [**LightBarSirenInUse**](ETSI-ITS-CDD.md#LightBarSirenInUse) <br>

  it indicates whether light-bar or a siren is in use by the vehicle originating the CAM.

 It shall include the following components:

Fields:

* _lightBarSirenInUse_ of type [**LightBarSirenInUse**](ETSI-ITS-CDD.md#LightBarSirenInUse) <br>

  it indicates whether light-bar or a siren is in use by the vehicle originating the CAM.

 It shall include the following components:

Fields:

* _protectedCommunicationZonesRSU_ of type [**ProtectedCommunicationZonesRSU**](ETSI-ITS-CDD.md#ProtectedCommunicationZonesRSU)  OPTIONAL<br>

  an optional Information about position of a CEN DSRC Tolling Station operating in the 5,8 GHz frequency 

   band. If this information is provided by RSUs a receiving vehicle ITS-S is prepared to adopt mitigation techniques when being in the vicinity of

 It shall include the following components:

Fields:

* _id_ of type [**ExtensionContainerId**](#ExtensionContainerId)  UNIQUE<br>

  the identifier of the container type.

 It shall include the following components:

Fields:

* _containerId_ of type [**EXTENSION-CONTAINER-ID-AND-TYPE**](#EXTENSION-CONTAINER-ID-AND-TYPE) .&id( {ExtensionContainers} )<br>

  the identifier of the container type.

 It shall include the following components:

Fields:

* _typeSpecificInformation_ of type [**TwoWheelerTypeSpecificInformation**](#TwoWheelerTypeSpecificInformation)  OPTIONAL<br>

  this data field contains type specific information about two wheelers.

 It includes one of the following components:

Fields:

* _cyclist_ of type [**CyclistTypeSpecificInformation**](#CyclistTypeSpecificInformation) <br>

  it contains cyclist-specific information.

 It shall include the following components:

Fields:

* _vruSubProfileBicyclist_ of type [**VruSubProfileBicyclist**](ETSI-ITS-CDD.md#VruSubProfileBicyclist)  (unavailable | bicyclist | e-scooter | pedelec | speed-pedelec | roadbike | childrensbike) OPTIONAL<br>

  it indicates the detailed type of the cyclist.

 It shall include the following components:

Fields:

* _segmentAhead_ of type [**PolygonalLine**](ETSI-ITS-CDD.md#PolygonalLine) <br>

  the road segment that the vehicle is predicted to reach, starting from the reference position.

   At least one node must be filled in so that the current map position can be calculated on the receiver side.

 It shall include the following components:

Fields:

* _vehicleHeight_ of type [**VehicleHeight2**](ETSI-ITS-CDD.md#VehicleHeight2)  OPTIONAL<br>

  this component represents the height of the vehicle that originates the CAM.

 Contains information about the possible future paths of ITS station.

Fields:

* _pathPredictedList_ of type [**PathPredictedList**](ETSI-ITS-CDD.md#PathPredictedList) <br>

```asn1

PathPredictionContainer ::= SEQUENCE {   

 Contains detailed information about the transversal position of the ITS station with respect to the road and potentially about the lane type.

Fields:

* _generalizedLanePositions_ of type [**GeneralizedLanePositions**](ETSI-ITS-CDD.md#GeneralizedLanePositions) <br>

```asn1

GeneralizedLanePositionsContainer ::= SEQUENCE {   

 	- mechanism for lateral, longitudinal movements dimensions 

	  of the vehicle

Fields:

* _vehicleMovementControl_ of type [**VehicleMovementControl**](ETSI-ITS-CDD.md#VehicleMovementControl) <br>

```asn1

VehicleMovementControlContainer ::= SEQUENCE {