6.5.9 NR E-CID Positioning
37.3553GPPLTE Positioning Protocol (LPP)Release 17TS
This clause defines the information elements for NR E-CID positioning (TS 38.305 [40]).
6.5.9.1 NR E-CID Location Information
– NR-ECID-ProvideLocationInformation
The IE NR-ECID-ProvideLocationInformation is used by the target device to provide NR E-CID location measurements to the location server. It may also be used to provide NR E-CID positioning specific error reason.
— ASN1START
NR-ECID-ProvideLocationInformation-r16 ::= SEQUENCE {
nr-ECID-SignalMeasurementInformation-r16 NR-ECID-SignalMeasurementInformation-r16 OPTIONAL,
nr-ECID-Error-r16 NR-ECID-Error-r16 OPTIONAL,
…
}
— ASN1STOP
6.5.9.2 NR E-CID Location Information Elements
– NR-ECID-SignalMeasurementInformation
The IE NR-ECID-SignalMeasurementInformation is used by the target device to provide NR E-CID measurements to the location server.
— ASN1START
NR-ECID-SignalMeasurementInformation-r16 ::= SEQUENCE {
nr-PrimaryCellMeasuredResults-r16 NR-MeasuredResultsElement-r16,
nr-MeasuredResultsList-r16 NR-MeasuredResultsList-r16 OPTIONAL,
…
}
NR-MeasuredResultsList-r16 ::= SEQUENCE (SIZE(1..32)) OF NR-MeasuredResultsElement-r16
NR-MeasuredResultsElement-r16 ::= SEQUENCE {
nr-PhysCellID-r16 NR-PhysCellID-r16,
nr-ARFCN-r16 CHOICE {
ssb-ARFCN-r16 ARFCN-ValueNR-r15,
csi-RS-pointA-r16 ARFCN-ValueNR-r15
},
nr-CellGlobalID-r16 NCGI-r15 OPTIONAL,
systemFrameNumber-r16 BIT STRING (SIZE (10)) OPTIONAL, resultsSSB-Cell-r16 MeasQuantityResults-r16 OPTIONAL,
resultsCSI-RS-Cell-r16 MeasQuantityResults-r16 OPTIONAL,
resultsSSB-Indexes-r16 ResultsPerSSB-IndexList-r16 OPTIONAL,
resultsCSI-RS-Indexes-r16 ResultsPerCSI-RS-IndexList-r16 OPTIONAL,
…
}
MeasQuantityResults-r16 ::= SEQUENCE {
nr-RSRP-r16 INTEGER (0..127) OPTIONAL,
nr-RSRQ-r16 INTEGER (0..127) OPTIONAL
}
ResultsPerSSB-IndexList-r16::= SEQUENCE (SIZE (1..64)) OF ResultsPerSSB-Index-r16
ResultsPerSSB-Index-r16 ::= SEQUENCE {
ssb-Index-r16 INTEGER (0..63),
ssb-Results-r16 MeasQuantityResults-r16
}
ResultsPerCSI-RS-IndexList-r16::= SEQUENCE (SIZE (1..64)) OF ResultsPerCSI-RS-Index-r16
ResultsPerCSI-RS-Index-r16 ::= SEQUENCE {
csi-RS-Index-r16 INTEGER (0..95),
csi-RS-Results-r16 MeasQuantityResults-r16
}
— ASN1STOP
NR-ECID-SignalMeasurementInformation field descriptions |
---|
nr-PrimaryCellMeasuredResults This field contains the NR E-CID measurements for the primary cell. |
nr-MeasuredResultsList This field contains the NR E-CID measurements for up to 32 neighbour cells. |
nr-PhysCellID This field specifies the NR physical cell identity of the measured cell. |
nr-ARFCN This field specifies the ARFCN of the first RE of SSB’s RB#10 or the point A of CSI-RS. |
nr-CellGlobalID This field specifies the NR cell global ID of the measured cell. The target device shall provide this field if it was able to determine the NCGI of the measured cell at the time of measurement. |
systemFrameNumber This field specifies the system frame number of the measured cell during which the measurements have been performed. The target device shall include this field if it was able to determine the SFN of the cell at the time of measurement. |
resultsSSB-Cell This field specifies the SS reference signal received power (SS-RSRP) and quality (SS-RSRQ) measurement aggregated at cell level, as defined in TS 38.331 [35]. |
resultsCSI-RS-Cell This field specifies the CSI-RS reference signal received power (CSI-RSRP) and quality (CSI-RSRQ) measurement aggregated at cell level, as defined in TS 38.331 [35]. |
resultsSSB-Indexes This field specifies the SS reference signal received power (SS-RSRP) and quality (SS-RSRQ) measurement per SSB resource, as defined in TS 38.331 [35]. |
resultsCSI-RS-Indexes This field specifies the CSI-RS reference signal received power (CSI-RSRP) and quality (CSI-RSRQ) per CSI-RS resource, as defined in TS 38.331 [35]. |
nr-RSRP This field specifies the integer value for RSRP measurements according to Table 10.1.6.1-1 in TS 38.133 [46]. |
nr-RSRQ This field specifies the integer value for RSRQ measurements accordng to Table 10.1.11.1-1 in TS 38.133 [46]. |
6.5.9.3 NR E-CID Location Information Request
– NR-ECID-RequestLocationInformation
The IE NR-ECID-RequestLocationInformation is used by the location server to request NR E-CID location measurements from a target device.
— ASN1START
NR-ECID-RequestLocationInformation-r16 ::= SEQUENCE {
requestedMeasurements-r16 BIT STRING { ssrsrpReq (0),
ssrsrqReq (1),
csirsrpReq (2),
csirsrqReq (3)} (SIZE(1..8)),
…
}
— ASN1STOP
NR-ECID-RequestLocationInformation field descriptions |
---|
requestedMeasurements This field specifies the NR E-CID measurements requested. This is represented by a bit string, with a one‑value at the bit position means the particular measurement is requested; a zero‑value means not requested. |
6.5.9.4 NR E-CID Capability Information
– NR-ECID-ProvideCapabilities
The IE NR-ECID-ProvideCapabilities is used by the target device to indicate its capability to support NR E-CID and to provide its NR E-CID positioning capabilities to the location server.
— ASN1START
NR-ECID-ProvideCapabilities-r16 ::= SEQUENCE {
nr-ECID-MeasSupported-r16 BIT STRING { ssrsrpSup (0),
ssrsrqSup (1),
csirsrpSup (2),
csirsrqSup (3)} (SIZE(1..8)),
periodicalReporting-r16 ENUMERATED { supported } OPTIONAL,
triggeredReporting-r16 ENUMERATED { supported } OPTIONAL,
…,
[[
ten-ms-unit-ResponseTime-r17 ENUMERATED { supported } OPTIONAL,
scheduledLocationRequestSupported-r17
ScheduledLocationTimeSupport-r17 OPTIONAL
]]
}
— ASN1STOP
NR-ECID-ProvideCapabilities field descriptions |
---|
nr-ECID-MeasSupported: Indicates the supported NR ECID measurements: – ssrsrpSup indicates the UE supports SSB based cell/beam specific RSRP measurement; – ssrsrqSup indicates the UE supports SSB based cell/beam specific RSRQ measurement; – csirsrpSup indicates the UE supports CSI-RS based cell/beam specific RSRP measurement; – csirsrqSup indicates the UE supports CSI-RS based cell/beam specific RSRQ measurement. |
ten-ms-unit-ResponseTime This field, if present, indicates that the target device supports the enumerated value ‘ten-milli-seconds‘ in the IE ResponseTime in IE CommonIEsRequestLocationInformation. |
scheduledLocationRequestSupported This field, if present, indicates that 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. |
6.5.9.5 NR E-CID Capability Information Request
– NR-ECID-RequestCapabilities
The IE NR-ECID-RequestCapabilities is used by the location server to request the capability of the target device to support NR E-CID and to request NR E-CID positioning capabilities from a target device.
— ASN1START
NR-ECID-RequestCapabilities-r16 ::= SEQUENCE {
…
}
— ASN1STOP
6.5.9.6 NR E-CID Error Elements
– NR-ECID-Error
The IE NR-ECID-Error is used by the location server or target device to provide NR E-CID error reasons to the target device or location server, respectively.
— ASN1START
NR-ECID-Error-r16 ::= CHOICE {
locationServerErrorCauses-r16 NR-ECID-LocationServerErrorCauses-r16,
targetDeviceErrorCauses-r16 NR-ECID-TargetDeviceErrorCauses-r16,
…
}
— ASN1STOP
– NR-ECID-LocationServerErrorCauses
The IE NR-ECID-LocationServerErrorCauses is used by the location server to provide NR E-CID error reasons to the target device.
— ASN1START
NR-ECID-LocationServerErrorCauses-r16 ::= SEQUENCE {
cause-r16 ENUMERATED { undefined,
…
},
…
}
— ASN1STOP
– NR-ECID-TargetDeviceErrorCauses
The IE NR-ECID-TargetDeviceErrorCauses is used by the target device to provide NR E-CID error reasons to the location server.
— ASN1START
NR-ECID-TargetDeviceErrorCauses-r16 ::= SEQUENCE {
cause-r16 ENUMERATED { undefined,
requestedMeasurementNotAvailable,
notAllrequestedMeasurementsPossible,
…
},
ss-RSRPMeasurementNotPossible-r16 NULL OPTIONAL,
ss-RSRQMeasurementNotPossible-r16 NULL OPTIONAL,
csi-RSRPMeasurementNotPossible-r16 NULL OPTIONAL,
csi-RSRQMeasurementNotPossible-r16 NULL OPTIONAL,
…
}
— ASN1STOP
NR-ECID-TargetDeviceErrorCauses field descriptions |
---|
cause This field provides a NR E-CID specific error cause. If the cause value is ‘notAllRequestedMeasurementsPossible’, the target device was not able to provide all requested NR E-CID measurements (but may be able to provide some measurements). In this case, the target device should include any of the ss-RSRPMeasurementNotPossible, ss-RSRQMeasurementNotPossible, csi-RSRPMeasurementNotPossible, or csi-RSRQMeasurementNotPossible fields, as applicable. |