MTR_1913_NR_System Constants(1)

UP revision: CXP2010045_5-R17B31 Date: Sat Mar 30 01:21:28 CET 2019 Classification File: /proj/rbs-g2-tmp/fem051/UpData/CXP2010045_5/R17B31/UP/rcSysConstClassifiedLm/bin/sysconst_NrClassifiedSCsRc.txtIdNameDescriptionRC2extEnbRemoveTimeNWIF System Constant for Automatic MO RemovalRC5termpointToGnbduRemoveTimeNWIF System Constant. Time in minutes for automatic removal of an unused TermPointToGNBDU MO.RC13carrierAggregationEnable/disable NR Carrier Aggregation of max 4CC 0 = Disabled 1 = EnabledRC14pdcpOutOfOrderDeliverySwitch between using pdcp outOfOrderDelivery 0 = pdcpOutOfOrderDelivery false 1 = pdcpUutOfOrderDelivery trueClassification File: /proj/rbs-g2-tmp/fem051/UpData/CXP2010045_5/R17B31/UP/ppSysConstClassifiedLm/bin/sysconst_ClassifiedSCsPp.txtIdNameDescriptionPP1ppLinkInactivitySupervisionPeriodThe timeout value to use when supervising inactive links before removing them.PP10nrDlpdcpSpsTargetTimeMsReplaced by dlPdcpSpsTargetTimeNr and dlPdcpSpsTargetTimeLtePP11dlpdcpSpsLowPduqKbThe flow control low pdu queue threshold. If the PDU queue (that is the data transmitted to RLC but not yet acknowledged by the UE) is shorter than this flow control will set a default bit rate, even if radio throughput is low.PP12dlpdcpSpsPeriodThe period in milliseconds between flow control bitrate policy updates.It should be large enough so that new feedback has arrived every period.Smaller value means more accurate flow control.It should not be set to a value lower than tStatusProhibitDl on any of the legs.PP15dlpdcpSpsThresholdTimeMsInput parameter to calculate threshold to activate flow control for a given bearer.The age of the oldest unacknowledged packet for a bearer in milliseconds is compared to (dlpdcpSpsThresholdTimeMs + dlpdcpSpsLinkTimeFactor * measured C5U RTT).PP16dlpdcpSpsLinkTimeFactorInput parameter to calculate activation threshold and target buffer depth for flow control.The C5U link delay is multiplied by this factor and added both to the activation threshold and buffer depth target for flow control.This value is multiplied with 1/100 before applied to the algorithm.PP17dlpdcpSpsErrorGainFactorInput parameter to FC algorithm to multiply ErrorGain before BSS decision.This value is multiplied with 1/100 before applied to the algorithm.PP18dlpdcpSpsInitialLinkLatencyBefore any link latency estimation has occurred, this value will be used instead. Link latency is half round-trip time.PP19dlpdcpDcAggregationModeAt aggregation, decides what algorith DL PDCP uses to distribute packets between the legs.Available values are 0 (NR only), 1 (LTE only), 4 (least latency), 5 (NR only no FC), 6 (least latency, transmitted), 7 (NR only, transmitted)See comment!PP43dlpdcpEnableRetransmitAtLteNrSwitchEnable retransmit when switching from LTE to NR.PP44dlpdcpBssPrioNrPriority weight for NR leg at leg selection. Prio weight for LTE leg will be (100 - dlpdcpBssPrioNr).PP45dlpdcpBssSchedBurstSizeDecides number of kilobytes allocated to a leg at the same scheduling occasion before a new leg selection will be made.PP46dlpdcpSpsWirelessBitRateLevelWireless rate level at which the minimum wireless rate (as specified in the algorithm) will not be used.PP47dlpdcpSpsMinWirelessBitRateMinimum wireless bit rate that is used in the SPS algorithm given certain conditions; is used unless overridden by the dlpdcpSpsMinWirelessBitRateAggLte parameter.PP48dlpdcpSpsMinWirelessBitRateAggLteMinimum wireless bit rate that is used instead of the dlPdcpSpsMinWirelessBitRate parameter in the case when aggregation is active for the LTE leg.PP49dlpdcpSpsWirelessRateMultFactorA factor applied to the wireless rate when calculating the SPS rate.PP50dlpdcpSpsMinWirelessBitRateAggNrMinimum wireless bit rate that is used instead of the dlPdcpSpsMinWirelessBitRate parameter in the case when aggregation is active for the NR leg.PP53ppE6BearerWithoutBbCurently E6 is not published in SDS until all peripheral interfaces (nr uemi, tsi gtpu, bearer resource coordination, etc.) are established. If this system constant is set, ppBearerCtrl will not wait for interfaces to be established and publising of E6 bearer in SDS will happen regardless of BB connection status. Should not be used in production. Its just for internal usesPP54dlpdcpSourceHoFwdTimeoutMaximum wait time for packet forwarding end marker on target gNBPP55dlpdcpTargetHoFwdTimeoutMaximum wait time for packet forwarding end marker on target gNBPP56dlpdcpX2ReceptionTimeThrshMax time threshhold since last X2 packet reception. After expiry it is assumed no more forwarded packets will be received over X2PP58eNbVendorIdentitySetting eNbVendorIdentity to ericsson activates Ericsson proprietary features and flow control while other results in features and functionality as agreed with other vendors.Classification File: /proj/rbs-g2-tmp/fem051/UpData/CXP2010045_5/R17B31/UP/rpcSysConstClassifiedLm/bin/sysconst_NrClassifiedSCsRp.txtIdNameDescriptionRP3raResponseWindowSizeDuration of RA response window values in subframesRP4ulGainCellEdgeDefault gain value to be used before any measurements of uplink gain are available.RP14scSlotOffsetSelectionSystem constant to control selection of slot offsets used in scheduling including K1, offset in slot from PDSCH to HARQ feedback on PUCCH, and K2, offset in slot from UL grant in DCI to PUSCH. 0: small offset, 1: middle offset, 2: large offsetRP15maxRrcConnectedUsersNumber of simultaneously supported UEs in state RRC_Connected per cell.RP16commonSrPeriodicitySystem constant to control the Scheduling Request periodicity.RP17pucchTdmModeEnabled1- This system constant helps to control the UE configuration so that no UCI data is transmitted on PUSCH. If Enabled(pucchTdmModeEnabled = 1) then PUSCH and PUCCH are separated in time; PUSCH on symbols 0-9 and PUCCH on symbols 10-13 as represented in the right-hand side scenario here below. When the system constant is set to 0 (disabled), both PUSCH and PUCCH start on symbol 0. This is shown in the scenario on the left-hand side here below. pucchTdmModeEnabled = 0 _ | | | PUCCH | |_| | | | | | PUSCH | | | |_| | | | PUCCH | |_| start symbol= 0 pucchTdmModeEnabled = 1 _ | | | | PUSCH | PUCCH | | |_| | | | | | | PUSCH | EMPTY! | | | | | _| | | | | PUSCH | PUCCH | |_|_| start symbol= 0 10 So, maxRrcConnectedUsers, nrOfSymbolsForLongPucch and nrOfPucchCsPf1 will not take effect if this is enabled.RP20ulNrAllowedMaxMcsSystem constant describing the allowed MCSes on PUSCH.RP22draDlCsiRsCtrlDataA bitmap contains a set of control knobs for CSI RS functionality.RP23macContentionResolutionTimerRandom Access MAC contention resolution timer (T300) in milliseconds. See 38.331 for supported values. Change takes effect on next UE connection attempt.RP24draDlLaCtrlBitmap used by DL DRA to control Link Adaptation Bit 0-1: MCS table 00 - adaptive 01 - force MCS table 1 (qam64) 10 - force MCS table 2 (qam256) 11 - invalid default: 1 Bit 2: adaptive/fixed MCS 0 - adaptive 1 - fixed default: 1 Bit 3-7: fixed MCS value, valid only if bit 2 set 0-28 fixed MCS, if MCS table is table 1 0-27 fixed MCS, if MCS table is table 2 29,30,31 - invalid default: 8 Bit 8-11: fixed/adaptive number of layers per cw 0 - adaptive 1 - 8: 1 to 8 Layers default: 1 Bit 12-28: Not Used NOTE: The following bitfields are temporary in nature and will be removed. They start from the MSB (bit 31 is reserved for signed bit for S32) for easier clean up. should try to have a default value of 0 so that it is transparent to users during cleanup. Bit 30: Allocation type in DCI 1_1 (type 0 or type 1) 0 - use allocation type defined in this constant NR3GPP_PDSCH_CONFIG_RESOURCE_ALLOCATION 1 - force to use allocation type 1 for DCI 1_1 default: 0 Bit 29: block PDSCH allocation in SSB slot (applied to full cell bandwidth) 0 - FALSE. Allow PDSCH allocation in SSB slot 1 - TRUE. Do NOT allow PDSCH allocation in SSB slot default: 0 Default: 0x00000145 - MCS table 1, MCS fixed to 8, 1 layer per cwRP25rlcAdvancedFeatureBitmapThis system constant is a bitstring (0 to 0xffffffff), used to enable advanced or experimental RLC DL functionality when corresponding bit is set. Bit0 = if bit set, enables dlPollRetx optimization on DRB. For a poll-triggered ARQ retx in DL on a DRB, instead of retransmitting entire RLC PDU just to send poll bit, a small RF PDU is sent with Poll Bit set in header. Bit1 = if bit set, enables adaptive RLC DL tPollRetx Timer. The tPollRetx timer value is adapted as a function of retxCount. In LTE, this is controlled by AdaptiveRlcPollReTransmission feature but in NR there is currently no support for feature enabling. Bit2 = if bit set, then for RRCConnectionRelease messages, limits max ARQ retransmit attempts to 3 and extends tPollRetransmitDl timer for SRB bearer to 160 milliseconds. Bit3 = if bit set, then completely disables RLC DL Active Queue Management (AQM).RP26rlcAdvancedFeatureValueThis system constant is a value used for advanced or experimental DL RLC functionality.RP27upcDlCsiRptCfgDataA bitmap containing configuration data for CSI reports.RP28preschedulingEnableEnable/disable prescheduling functionalityRP29preschedulingDataSizeAssumed UE buffer size in unit of byte for prescheduling. Default 536870911 bytesRP30upcDlDebugCtrlDebug control bitmap for general UPC DL functionality. See Mapping section for details info for each bit fields. WARNING: Please update the mapping description for each new bit field added, otherwise, others might be using the same set of bit(s) for other thing.RP33bbDebugCtrlBitmapBitmap with 31 bits (bit30 bit0) used for general baseband debug control purpose. min = 0(dec) = 0x0(hex), max = 2147483647(dec) = 0x7fffffff(hex). default = 0(dec) = 0x0(hex) Sign MSB bit LSB bit 31 30 29 28 27 . 9 8 7 6 5 4 3 2 1 0 bit0: Used for 3GPP Spec Uplift purpose. (bit0=0) means using the legacy 3GPP Spec, e.g., March Spec EIPS(v15.1.0). (bit0=1) means using the new 3GPP Spec, e.g., June Spec EIPS(v15.2.0). Default=1 bit1: Used for tuning of noOfAntenna sent from upc to ulphy as a temp solution. (bit1=0) means noOfAntenna=2 in upc and used by ulphy. (bit1=1) means noOfAntenna=8 in upc and used by ulphy. Default=0 In case of lowBand FDD: (bit1=0) means noOfAntenna=2 in upc and used by ulphy. (bit1=1) means noOfAntenna=4 in upc and used by ulphy. Default=0 bit2: Used for enabling SP848 all signal based configuration in whole (bit2=0) means all signal based configuration is NOT enabled in whole (bit2=1) means all signal based configuration is enabled in whole Default=0 bit3-8: Used for SP848 individual functionalities enable/disable. (bit3-8=0) means one of SP848 individual functionalities is disabled (bit3-8=1) means one of SP848 individual functionalities is enabled Default=0 bit9: Userd for SP848 rachConfig functionality enable/disable. (bit0=0) means SP848 rachConfig is currently disabled (bit0=1) means SP848 rachConfig is currently enabled Default=0 bit10:Used for 3GPP Spec Uplift purpose. (bit10=0) means using the legacy 3GPP Spec, e.g., June Spec EIPS(v15.2.0). (bit10=1) means using the new 3GPP Spec, e.g., September Spec 3GPP(v15.3). Default=0 bit11:Used for downlink SE weight=0 issue reproduce and further debugging. (bit11=0) means disable DBC_ASSERT_U check for downlink SE weight=0 (bit11=1) means enable DBC_ASSERT_U check for downlink SE weight=0 Default=0 bit12.30: Reserved for future usage.RP41dlHarqBlerTargetTarget BLER for DL after initial HARQ transmission.RP45maxNrOfAdmittedUesPerBbmMaximum number of connected users per baseband moduleRP46dlMaxHarqTxMaximum number of transmissions for one HARQ process in DL.RP47dlLaTriggerTimeTime to trigger DL LA (CSI-RS and report). Takes effect immediately for ongoing and new connections. Value 0 disables LA trigger Range:0,5,10,20,40,80,160,320,640,1280 ms. Default: 0 msRP49ulMaxHarqTxMaximum number of transmissions for one HARQ process in UL.RP50msg3MaxHarqTxMaximum number of transmissions for Msg3.RP52betaOffsetConfigA bitmap contains the CSI and HARQ ACK betaOffset index configuration.RP53ulHarqBlerTargetTarget BLER for UL after initial HARQ transmission.RP54ulOlaDownStepSizeUplink outer-loop down step size dB for NACK.RP55ueChipTypeUsed to set certain IEs in cellGroupConfigRP63p2TriggerTimeTimer to trigger P2 tracking (beam management). Permitted values: 0,5,10,20,40,80,160,320,640,1280. 0 = disabled. Unit: Milliseconds msRP64ssbMeasurementTimeTimer to trigger SSB measurement report (beam management). Permitted values: 0,5,10,20,40,80,160,320,640,1280. 0 = disabled. Unit: Milliseconds msRP65multipleBearersPerUeEnable/disable limit of one bearer per UERP66draUlDebugCtrlDebug control during integration.RP67rpcDlCsiRsCtrlDataA boolean value to enable or disable SP843 CSI-RS functionality in RPCRP72p2dRsrpThresholdNbSwitchIntraWbDefines the delta RSRP threshold for switching narrow beams within the current wide beam. If the RSRP of a candidate narrow beam is larger than the RSRP of the current narrow beam plus the delta RSRP threshold, a switch to the candidate narrow beam is made. Unit: dBRP73rpcCaDemoHb18q4A temporary system constant to enable/disable SP907 18Q4 Demo functionalityRP74upcDlLegSwitchA bitmap containing config parameters for DL NR quality estimates for Leg SwitchingRP78draDlSuMimoCtrlUsed to set certain IEs for su-mimoRP80p2dRsrpThresholdWbSwitchDefines the delta RSRP threshold for selecting a wide beam for further narrow beam refinement. If the RSRP of a candidate wide beam is larger than the RSRP of the current wide beam plus the delta RSRP threshold, a narrow beam measurement is triggered on the candidate wide beam to find the best candidate narrow beam. unit:dBRP81p2dRsrpThresholdNbSwitchInterWbDefines the delta RSRP threshold for switching narrow beams between wide beams. If the RSRP of a candidate narrow beam (on a different wide beam) is larger than the RSRP of the current narrow beam plus the delta RSRP threshold, a switch to the candidate narrow beam is made. unit:dBRP83endcDlNrQualHystTemporary parameter for NR radio quality hysteresis for switching between legs.RP84endcDlNrLowQualThreshTemporary parameter for NR radio quality level threshold for switching between legs.RP85tddPatternSelectionTemporary parameter to allow the TDD pattern configuration to be user-specified prior to the MOM attributes being available.RP95rlcUlAdvancedFeatureBitmapThis system constant is a bitstring (0 to 0xffffffff), used to enable advanced or experimental RLC UL functionality when corresponding bit is set.RP96rlcUlAdvancedFeatureValueThis system constant is a value used for advanced or experimental UL RLC functionality.RP97powerBackoffEnabledEnable/Disable the power back-off function. Disabled by default. Boolean. Disabled:0, Enabled:1.RP98powerBackoffThreshThe relative regulatory total average power threshold with respect to the maximum transmit power of the cell. This is a float value and the range is 0 to 100% with a resolution of 0.1%.RP99powerBackoffAvgTimeRF exposure requirement averaging time in seconds. Resolution is 1s.RP100maxNrOfAdmittedRadioBearersPerBbmMaximum number of radio bearers per baseband moduleRP101additionalGuardBandSystem constant to block PRBs(pairs) for UL usage on the edges of the system. Setting it to 1 menas remove 1 PRB on each side of the spectrum. default value 0 - no guardband. 1 - 1 PRB from each side of spectrum is removed.RP136rachPreambleDetectionThresholdOffset1rxModifier for PRACH power level detection threshold for NR 1 RXRP137rachPreambleDetectionThresholdOffset2rxModifier for PRACH power level detection threshold for NR 2 RXRP138rachPreambleDetectionThresholdOffset4rxModifier for PRACH power level detection threshold for NR 4 RXRP139rachPreambleDetectionThresholdOffset8rxModifier for PRACH power level detection threshold for NR 8 RXRP140puschReceiverModeChoose PUSCH receiver mode, 0 for subsector beam receiver mode, 1 for pre-equalizer receiver mode. Observe that all cells on a node needs to have the same PUSCH receiver mode so all these cells needs to be locked before changing this system constant, then unlocking the cells.RP147maxNoOfPucchPrbsRequested limit on total number of PRBs used for PUCCH. NOTE: Actual number of PRBs allocated might be lower due to HW limitations. An even number of PRBs will always be allocated due to frequencyHopping.RP148pucchLowLatencyUe0 - No LowLatency UEs are configured, all UEs will be configured with the same PUCCH srPeriodicity. 1 . - Used as input for minimum requested number of UEs with lowest available srPeriodicity (LowLatency UEs) NOTE: Actual number of LowLatency UEs might be higher if there are available PF1 resources.RP150maxNoOfPuschPrbsThe maximum number of UL PRBs available for UL data scheduling on PUSCH, per slot and per cell. This SC only takes effect if RP17 (pucchTdmModeEnabled) is set to 0.RP152maxSuccessiveDtxBeforeSleepThis parameter stores the value for maximum successive DTX received by a UE after which, it is marked as sleep mode in DRX cycle by gNodeB.RP153dataInactivityTimeThis is dataInactivityTimer timeout value.If SR=0, BSR or DL data buffers are empty and timer expires,UL pre-scheduling is disabled. It will reset to default value, if values are other than 0,4,8,16,32,64 ms If its value is zero correspond