Barometer

The field is mandatory present if the Sensor-MeasurementInformation is provided for barometric pressure; otherwise it is not present.

measurementReferenceTime

This field provides the UTC time when the sensor measurements are performed and should take the form of YYMMDDhhmmssZ.

uncompensatedBarometricPressure

This field provides the uncompensated barometric pressure as measured by the UE sensor, in units of Pa.

uncertainty

This field provides the expected range for the pressure measurement in units of Pa and the confidence as a percentage that the true pressure lies in a range of (measurement – range) to (measurement + range).

adjustment

This field provides any adjustment available in the UE, in units of Pa, to allow the production of a compensated atmospheric pressure measurement where compensated atmospheric pressure = uncompensatedBarometricPressure + adjustment

refTime

This field provides the reference time t₀ associated with the starting position of the first displacement in the displacement list.

displacementInfoList

This field provides an ordered series of direction and distance travelled by the target device and comprises the following subfields:

– deltaTimeStamp specifies the time between t_n-1 and t_n, were n corresonds to the order of entry in the DispacementInfoList (n=0 correspond to the time provided in refTime).

– displacement provides the direction and distance travelled between time t_n-1 and t_n.

utcTime

This field provides the time stamp of the refTime in UTC time and comprises the following subfields:

– utcTime in the form of YYMMDDhhmmssZ.

– utcTime-ms specifies the fractional part of the UTC time in ms resolution.

gnssTime

This field provides the time stamp of the refTime in GNSS time.

systemFrameNumber

This field provides the time stamp of the refTime in serving cell SFN time.

measurementSFN

This field provides the time stamp of the refTime in form of the measurement SFN as defined in deltaSFN in IE OTDOA-SignalMeasurementInformation. This field may be included when OTDOA measurements are included.

deltaTimeSec

This field provides the time between t_n-1 and t_n in units of milliseconds.

deltaTimeSFN

This field provides the time between t_n-1 and t_n in units of system frame numbers.

bearing

This field specifies the direction (heading) of the horizontal displacement measured clockwise from bearingRef.

Scale factor 0.1 degree.

bearingRef

This field specifies the reference direction for the bearing. Enumerated value ‘geographicNorth‘ indicates that the bearing is measured clockwise from the Geographic North; ‘magneticNorth‘ indicates that the bearing is measured clockwise from the Magnetic North; ‘local‘ indicates that the bearing is measured clockwise from an arbitrary (undefined) reference direction.

horizontalDistance

This field specifies the horizonal distance travelled between time t_n-1 and t_n.

Scale factor 1 cm.

horizontalDistanceUnc, horizontalUncConfidence

This field specifies the horizontal uncertainty of the displacement (corresponding to t_n). horizontalDistanceUnc correspond to the encoded high accuracy uncertainty as defined in TS 23.032 [15]. horizontalUncConfidence corresponds to confidence as defined in TS 23.032 [15].

verticalDistance

This field specifies the vertical distance travelled between time t_n-1 and t_n.

Scale factor 1 cm.

verticalDistanceUnc, verticalUncConfidence

This field specifies the vertical uncertainty of the displacement (corresponding to t_n). verticalDistanceUnc correspond to the encoded high accuracy uncertainty as defined in TS 23.032 [15]. verticalUncConfidence corresponds to confidence as defined in TS 23.032 [15].

uncompensatedBarometricPressureReq

This field indicates whether the target device is requested to report Barometric pressure measurements in Sensor‑MeasurementInformation IE or not. TRUE means requested.

assistanceAvailability

This field indicates whether the target device may request additional Sensor assistance data from the server. TRUE means allowed and FALSE means not allowed.

sensor-MotionInformationReq

This field indicates whether the target device is requested to report movement information in IE Sensor‑MotionInformation or not. TRUE means requested.

adjustmentReq

This field indicates whether the target device is requested to report adjustment in IE Sensor-MeasurementInformation or not. TRUE means requested.

sensor-Modes

This field specifies the sensor mode(s) supported by the target device. This is represented by a bit string, with a one‑value at the bit position means the particular sensor mode is supported; a zero‑value means not supported.

sensor-AssistanceDataSupportList

This field specifies a list of sensor assistance data supported by the target device. This field shall be present if the target device supports assistance data for Barometric pressure sensor.

validityPeriodSupported

This field, if present, indicates that the target device supports period i.e. pressure validity period and pressure rate as part of the Sensor-AssistanceDataList.

valitidyAreaSupported

This field, if present, indicates that the target device supports area i.e. pressure validity area and North/East pressure gradient as part of the Sensor-AssistanceDataList.

periodicalReportingSupported

This field, if present, specifies the positioning modes for which the target device supports periodicalReporting. This is represented by a bit string, with a one‑value at the bit position means periodicalReporting for the positioning mode is supported; a zero‑value means not supported. If this field is absent, the location server may assume that the target device does not support periodicalReporting in CommonIEsRequestLocationInformation.

idleStateForMeasurements

This field, if present, indicates that the target device requires idle state to perform sensor measurements.

sensor-MotionInformationSup

This field, if present, indicates that the target device supports displacement reporting in IE Sensor-MotionInformation.

adjustmentSupported

This field, if present, indicates that the target device supports the adjustment IE in Sensor-MeasurementInformation.

scheduledLocationRequestSupported

This field, if present, specifies the positioning modes for which the target device supports scheduled location requests – i.e., supports the IE ScheduledLocationTime in IE CommonIEsRequestLocationInformation – and the time base(s) supported for the scheduled location time for each positioning mode. If this field is absent, the target device does not support scheduled location requests.

refPressure

This field specifies the atmospheric pressure (Pa) nominal at sea level, EGM96 [29] to the target.

The scale factor is 1 Pa. The value is added to the nominal pressure of 101325 Pa.

refPosition

This field specifies the reference position at which the pressure measurement is made, as an ellipsoid point with altitude and uncertainty ellipsoid.

refTemperature

Local temperature measurement at the reference where the pressure measurement is made.

The scale factor 1K. The value is added to 273K.

period

This field specifies the pressure validity period and reference pressure rate.

pressureValidityPeriod

– beginTime: this field specifies the start time of the pressure validity period in GNSS System Time.

– beginTimeAlt: this field specifies an alternative start time. It may be used by the target device if GNSS-System Time is not available. The alternative start time is relative to the time the message was received. The scale factor is 15 min. The range is from 0 minutes to 43215 minutes = 30 days.

– duration: this field specifies the duration of the validity period after the begin time. The scale factor is 15 minutes. The range is from 15 minutes to 43215 minutes = 30 days.

referencePressureRate

This field specifies the rate of change of pressure. When this field is included, the reference pressure applies only at the start of the pressure validity period. The scale factor is 10Pa/hour.

area

This field specifies the area within which the provided atmospheric reference pressure is valid and any spatial drift.

pressureValidityArea

– centerPoint: this field specifies the coordinates of the centre of the rectangular validity area.

– validityAreaWidth: this field specifies the width of the rectangular validity area. Width is measured from the centre along the latitude and is measured as the total width of the rectangle. The scale factor is 1km. The range is from 1km to 128km.

– validityAreaHeight: this fields specifies the height of the rectangular validity area. Height is measured from the centre along the longitude and is measured as the total height of the rectangle. The scale factor is 1km. The range is from 1km to 128km.

If this field is present, refPosition should not be provided by the location server and if provided, shall be ignored by the target device.

gN-pressure

This field specifies the northward gradient of the reference pressure calculated from the centre of the pressureValidityArea. The scale factor is 1 Pa/km. If this field is not provided, the gradient is assumed to be zero.

gE-pressure

This field specifies the eastward gradient of the reference pressure calculated from the centre of the pressureValidityArea. The scale factor is 1 Pa/km. If this field is not provided, the gradient is assumed to be zero.