The purpose of this procedure is to configure the UE to perform logging of measurement results while in RRC_IDLE and RRC_INACTIVE. The procedure applies to logged measurements capable UEs that are in RRC_CONNECTED.
The UE shall initiate the procedure upon receiving a logged measurement configuration in same or another RAT. The UE shall also initiate the procedure upon power off or upon deregistration.
The UE shall:
if stored, discard the logged measurement configuration as well as the logged measurement information, i.e. release the UE variables VarLogMeasConfig and VarLogMeasReport.
This procedure specifies the logging of available measurements by a UE in RRC_IDLE and RRC_INACTIVE that has a logged measurement configuration. The actual process of logging within the UE, takes place in RRC IDLE state could continue in RRC INACTIVE state or vice versa.
if areaConfiguration is not included in VarLogMeasConfig or if the current camping cell is part of the area indicated by areaConfig of areaConfiguration in VarLogMeasConfig:
perform the logging at regular time intervals as defined by the loggingInterval in VarLogMeasConfig only when the conditions indicated by the eventL1 are met;
if InterFreqTargetInfo is configured and if the UE detected IDC problems on at least one of the frequencies included in InterFreqTargetInfo or any inter-RAT frequency during the last logging interval, or
if areaConfiguration is not included in VarLogMeasConfig or if the last suitable cell that the UE was camping on is part of the area indicated by areaConfig of areaConfiguration in VarLogMeasConfig:
if available, set the measResultNeighCells, in order of decreasing ranking-criterion as used for cell re-selection, to include measurements of neighbouring cell that became available during the last logging interval and according to the following:
include measurement results for at most 6 neighbouring cells on the NR serving frequency and for at most 3 cells per NR neighbouring frequency and for the NR neighbouring frequencies in accordance with the following:
include measurement results for NR neighbouring frequencies that are included in both interFreqTargetInfo and either in measIdleCarrierListNR (within the VarMeasIdleConfig) or SIB4;
include measurement results for inter-RAT neighbouring frequencies that are included in either measIdleCarrierListEUTRA (within the VarMeasIdleConfig) or SIB5;
when the memory reserved for the logged measurement information becomes full, stop timer T330 and perform the same actions as performed upon expiry of T330, as specified in clause 5.5a.1.4.
The network initiates the procedure to a UE in RRC_CONNECTED when it needs (additional) UE radio access capability information. The network should retrieve UE capabilities only after AS security activation. Network does not forward UE capabilities that were retrieved before AS security activation to the CN.
include in the ue-CapabilityRAT-ContainerList a ue-CapabilityRAT-Container of the type UE-EUTRA-Capability associated with the terrestrial network and with the rat-Type set to eutra as specified in clause 5.6.3.3 of TS 36.331, according to the capabilityRequestFilter, if received;
if the RRC message segmentation is enabled based on the field rrc-SegAllowed received, and the encoded RRC message is larger than the maximum supported size of a PDCP SDU specified in TS 38.323:
The UE invokes the procedures in this clause if the NR or E-UTRA network requests UE capabilities for nr, eutra-nr or eutra. This procedure is invoked once per requested rat-Type (see clause 5.6.1.3 for capability enquiry by the NR network; see clause 5.6.3.3 of TS 36.331 for capability enquiry by the E-UTRA network). The UE shall ensure that the feature set IDs are consistent across feature sets, feature set combinations and band combinations in all three UE capability containers that the network queries with the same fields with the same values, i.e. UE-CapabilityRequestFilterNR, UE-CapabilityRequestFilterCommon and fields in UECapabilityEnquiry message (i.e. requestedFreqBandsNR-MRDC, requestedCapabilityNR, eutra-nr-only flag, and requestedCapabilityCommon) as defined in TS 36.331, where applicable.
The UE shall:
compile a list of "candidate band combinations" according to the filter criteria in capabilityRequestFilterCommon (if included), only consisting of bands included in frequencyBandListFilter, and prioritized in the order of frequencyBandListFilter (i.e. first include band combinations containing the first-listed band, then include remaining band combinations containing the second-listed band, and so on), where for each band in the band combination, the parameters of the band do not exceed maxBandwidthRequestedDL, maxBandwidthRequestedUL, maxCarriersRequestedDL, maxCarriersRequestedUL, ca-BandwidthClassDL-EUTRA or ca-BandwidthClassUL-EUTRA, whichever are received;
if it is regarded as a fallback band combination with the same capabilities of another band combination included in the list of "candidate band combinations", and
include into supportedBandCombinationList as many NR-only band combinations as possible from the list of "candidate band combinations", starting from the first entry;
include, into featureSetCombinations, the feature set combinations referenced from the supported band combinations as included in supportedBandCombinationList according to the previous;
compile a list of "candidate feature set combinations" referenced from the list of "candidate band combinations" excluding entries (rows in feature set combinations) with same or lower capabilities;
include into supportedBandCombinationList-UplinkTxSwitch as many NR-only band combinations that supported UL TX switching as possible from the list of "candidate band combinations", starting from the first entry;
include, into featureSetCombinations, the feature set combinations referenced from the supported band combinations as included in supportedBandCombinationList-UplinkTxSwitch according to the previous;
for a sidelink band combination the UE included in supportedBandCombinationListSidelinkEUTRA-NR, supportedBandCombinationListSL-RelayDiscovery or supportedBandCombinationListSL-NonRelayDiscovery:
if the UE supports partial sensing for a band of the sidelink band combination, include the partial sensing capabilities for the band using the sl-TransmissionMode2-PartialSensing-r17;
include into featureSets the feature sets referenced from the "candidate feature set combinations" and may exclude the feature sets with the parameters that exceed any of maxBandwidthRequestedDL, maxBandwidthRequestedUL, maxCarriersRequestedDL or maxCarriersRequestedUL, whichever are received;
include into supportedBandCombinationList and/or supportedBandCombinationListNEDC-Only as many E-UTRA-NR band combinations as possible from the list of "candidate band combinations", starting from the first entry;
include, into featureSetCombinations, the feature set combinations referenced from the supported band combinations as included in supportedBandCombinationList according to the previous;
include into supportedBandCombinationList-UplinkTxSwitch as many E-UTRA-NR band combinations that supported UL TX switching as possible from the list of "candidate band combinations", starting from the first entry;
include, into featureSetCombinations, the feature set combinations referenced from the supported band combinations as included in supportedBandCombinationList-UplinkTxSwitch according to the previous;
compile a list of "candidate feature set combinations" referenced from the list of "candidate band combinations" excluding entries (rows in feature set combinations) with same or lower capabilities;
include into featureSetsEUTRA (in the UE-EUTRA-Capability) the feature sets referenced from the "candidate feature set combinations" and may exclude the feature sets with the parameters that exceed ca-BandwidthClassDL-EUTRA or ca-BandwidthClassUL-EUTRA, whichever are received;
include the received frequencyBandListFilter in the field appliedFreqBandListFilter of the requested UE capability, except if the requested rat-Type is nr and the network included the eutra-nr-only field;