Download - LTE Mobility Parameter Quick Check v0.1
LTE Mobility Parameter quick check Simulator(RL50 Allignment)Purely Signal Strength & Some Signal Qual [email protected]: Things are simple so, just remmember the 3GPP (i.e. "mother of all") rules listed in Appendix.
Upgradation PossibilityGet rid of all the excel tab's -->i.e. Two tab goalsConfiguration tab--> all the mobility strategy configuration input can be placedDesign tab-->based on the input, give the correct set of parameters including scalling values, visualization of layering strategy with time needed.
Advice: Things are simple so, just remmember the 3GPP (i.e. "mother of all") rules listed in Appendix.
Design tab-->based on the input, give the correct set of parameters including scalling values, visualization of layering strategy with time needed.
Input, Don’t change any other fields/values
RSRP Based Cell Selection
Serving Cell ---------> LTE
SIB Value DB GUI Parameter MO23 23 pMaxOwnCell LNCEL0 18 qRxLevMinOffset LNCEL-128 -128 qrxlevMin LNCEL
Unit Selection Criteria
Srxlev > 0 Condition SatisfieddBm Srxlev = Qrxlevmeas – (qrxlevMin + qRxLevMinOffset ) – P_compensation 1
Qrxlevemeas = measured RSRP level -125
dBm P_compensation = max(pMaxOwnCell – P_max from UE, 0) 2
P_max from UE 21
qRxLevMinOffset 0dBm qrxlevMin = minimum RSRP level for camping -128
RSRQ Based Cell Selection (Where both RSRP and RSRQ condition need to be satisfied)
Serving Cell ---------> LTE
DB GUI Parameter MO-20 -20 qQualMinR9 LNCEL
1 1 qQualMinOffsetR9 LNCEL
Unit Selection Criteria
Squal > 0 Condition SatisfieddBm Squal = Qqualmeas – (qQualMinR9 + qQualMinOffsetR9) 1
Qqualmeas = measured RSRQ level -18
Equivalent SINR level (Calculated Value Predicted!) -21.56389
qQualMinOffsetR9 1dBm qQualMinR9 = minimum RSRQ level for camping -20
Condition Satisfied
Cell Selection will happen to LTE cell
Condition Satisfied
Cell Selection will happen to LTE cell
Input, Don’t change any other fields/values
RSRP Based Cell Re-Selection
Serving Cell ---------> LTE Neighbour Cell --------------------------->
DB GUI Parameter MO DB GUI
-66 62 sIntrasearch LNCEL 2 2
23 23 pMaxOwnCell LNCEL
0 18 Qrxlevminoffset LNCEL
-128 -128 qrxlevminintraF LNCEL
1 1 qHyst LNCEL
Unit Measurement Criteria
Srxlev <= sIntrasearch Condition SatisfieddBm Srxlev = Qrxlevmeas – (qrxlevminintraF + Qrxlevminoffset) – P_compensat 62
Qrxlevemeas = measured RSRP level -64
dBm P_compensation = max(pMaxOwnCell – P_max from UE, 0) 2
P_max from UE 21
Qrxlevminoffset 0dBm qrxlevminintraF = minimum RSRP level for camping -128
Unit Reselection Criteria
Sec tResEutra 1 If UE stays in Below condition more than 1
Rank_neighbour cell > Rank_serving cell Condition SatisfiedRank_serving cell = Measured RSRP_serving cell + qHyst -64
Rank_neighbour cell = Measured RSRP_neighbour cell – qOffsetCell -62
Measured RSRP_serving cell -65
Measured RSRP_neighbour cell -64
In Case of RL50 (if sIntrasearchV920 configured)
RSRP & RSRQ Based Cell Re-Selection
Serving Cell ---------> LTE Neighbour Cell --------------------------->
DB GUI Parameter MO DB GUI
-66 62 sIntraSearchPR9 LNCEL 2 2
23 23 pMaxOwnCell LNCEL
0 18 Qrxlevminoffset LNCEL
-128 -128 qrxlevminintraF LNCEL
1 1 qHyst LNCEL
-18 2 sIntraSearchQR9 LNCEL
-20 -20 qQualMinR9 LNCEL
1 1 qQualMinOffsetR9LNCEL
Unit Measurement Criteria
Srxlev <= sIntraSearchPR9 Condition SatisfiedSqual <= sIntraSearchQR9 Condition Satisfied
dBm Srxlev = Qrxlevmeas – (qrxlevminintraF + Qrxlevminoffset) – P_compensat 62Qrxlevemeas = measured RSRP level -64
dBm P_compensation = max(pMaxOwnCell – P_max from UE, 0) 2
P_max from UE 21
Qrxlevminoffset 0dBm qrxlevminintraF = minimum RSRP level for camping -128
dBm Squal = Qqualmeas – (qQualMinR9 + qQualMinOffsetR9) 2Qqualmeas = measured RSRQ level -17
Equivalent SINR level (Calculated Value Predicted!) -17.5555431
qQualMinOffsetR9 1
dBm qQualMinR9 = minimum RSRQ level for camping -20
Unit Reselection Criteria
Sec tResEutra 1 If UE stays in Below condition more than 1
Ranking is done based on RSRP. And measurement can trigger on both RSRP and RSRQ
Rank_neighbour cell > Rank_serving cell Condition SatisfiedRank_serving cell = Measured RSRP_serving cell + qHyst -64
Rank_neighbour cell = Measured RSRP_neighbour cell – qOffsetCell -62
Measured RSRP_serving cell -65
Measured RSRP_neighbour cell -64
Neighbour Cell ---------------------------> LTE
Parameter MO
qOffsetCell IAFIM
Condition Satisfied
UE Start measurement to neighbour LTE cell
Sec
Condition Satisfied
Reselection to neighbour intra LTE will Start
Neighbour Cell ---------------------------> LTE
Parameter MO
qOffsetCell IAFIM
Condition SatisfiedCondition Satisfied
UE Start measurement to neighbour LTE cell
Sec
Condition Satisfied
Reselection to neighbour intra LTE will Start
Input, Don’t change any other fields/values
RSRP Based Cell Re-Selection
Serving Cell ---------> LTE
DB GUI Parameter MO
-104 24 sNonIntrsearch LNCEL
-128 -128 qrxLevMin LNCEL
0 18 qRxLevMinOffset LNCEL
23 23 pMaxOwnCell LNCEL
-120 8 threshSrvLow LNCEL
-128 -128 qrxlevminintraF LNCEL
1 1 qHyst LNCEL
-104 24 sNonIntrsearchPR9 LNCEL
-16 3 sNonIntrsearchQR9LNCEL
-19 -19 qQualMinR9 LNCEL
-15 4 threshServingLowQR9LNCEL
GUI Parameter MO
5 cellReSelPrio LNCEL
LNCEL: cellReSelPrio < IRFIM: eutCelResPrio NOK
Unit Measurement Criteria
Measurement is Mandatory
Unit Reselection Criteria
Sec interTResE 1 If UE stays in Below condition more than
RSRP based
Srxlev_neighbour > interFrqThrH
Srxlev_neighbour = Qrxlevmeas – qRxLevMinInterF – P_compensation
dBm P_compensation = max(pMaxOwnCell – P_max from UE, 0)
P_max from UE
Qrxlevemeas = measured RSRP level
qRxLevMinInterF = minimum RSRP level of neighbour cell for camping
RSRQ based
Squal_LTE_neighbour > interFrqQThrHighR9
Squal_LTE_neighbour = QualMeas – qQualMinR9
QualMeas = measured RSRQ level
qQualMinR9= minimum RSRQ level of neighbour for camping
LNCEL: cellReSelPrio > IRFIM: eutCelResPrio High Priority-->LTE_Serving
RSRP based measurement triggered
Unit Measurement Criteria
Srxlev_sev <= sNonIntrsearch (SIB3)
dBm Srxlev_sev <= (2 x sNonIntrsearch(SIB3))
Srxlev = Qrxlevmeas - qrxlevMin (SIB3)
dBm
Qrxlevemeas = measured RSRP level
dBm qrxlevMin = minimum RSRP level for camping
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Unit Measurement Criteria
Srxlev_sev <= sNonIntrsearchPR9 (SIB3)
Squal_sev <= sNonIntrsearchQR9 (SIB3)
dBm Srxlev_sev <= (2 x sNonIntrsearch (SIB3))
Srxlev_sev = Qrxlevmeas - qRxLevMin (SIB3)
dBm
Qrxlevemeas = measured RSRP level
dBm qRxLevMin = minimum RSRP level for camping
Squal_sev = Qualmeas - qQualMinR9 (SIB3)
Qualmeas = measured RSRQ level
dBm qQualMinR9 = minimum RSRQ level for camping
Unit Reselection Criteria
Sec interTResE 1 If UE stays in Below condition more than
Srxlev = Qrxlevmeas [dBm] - (2 x qrxlevMin (SIB3)) [dBm]
Srxlev_sev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
RSRP based
Srxlev_LTE_Serv = QrxlevMeas – qRxLevMin + qRxLevMinOffset – P_compensation
Qrxlevemeas = measured RSRP level
qrxlevMin = minimum RSRP level for camping
Srxlev_neighbour > interFrqThrL
Srxlev_neighbour = QrxlevMeasn – qRxLevMinInterF – P_compensation
Qrxlevemeas = measured RSRP level
qRxLevMinInterF= minimum RSRP level of neighbour for camping
RSRQ based (if threshServingLowQ is configured)
Squal_LTE_Serv = QualMeas – qQualMinR9
QualMeas = measured RSRQ level
qQualMinR9 = minimum RSRQ level for camping
Squal_LTE_neighbour > interFrqQThrLowR9
Squal_LTE_neighbour = QualMeas – qQualMinR9
QualMeas = measured RSRQ level
qQualMinR9= minimum RSRP level of neighbour for camping
LNCEL: cellReSelPrio = IRFIM: eutCelResPrio NOK
RSRP based measurement triggered
Unit Measurement Criteria
Srxlev_sev <= sNonIntrsearch (SIB3)
dBm Srxlev_sev <= (2 x sNonIntrsearch (SIB3))
Srxlev = Qrxlevmeas - qRxLevMin (SIB3)
dBm
Qrxlevemeas = measured RSRP level
dBm qRxLevMin = minimum RSRP level for camping
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Unit Measurement Criteria
Srxlev_LTE_Serv < threshSrvLow (SIB3)
Squal_LTE_Serv < threshServingLowQR9(SIB3)
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
Srxlev_sev <= sNonIntrsearchPR9 (SIB3)
Squal_sev <= sNonIntrsearchQR9 (SIB3)
dBm Srxlev_sev <= (2 x sNonIntrsearch (SIB3))
Srxlev_sev = Qrxlevmeas - qRxLevMin (SIB3)
dBm
Qrxlevemeas = measured RSRP level
dBm qRxLevMin = minimum RSRP level for camping
Squal_sev = Qualmeas - qQualMinR9 (SIB3)
Qualmeas = measured RSRQ level
dBm qQualMinR9 = minimum RSRQ level for camping
Unit Reselection Criteria
Sec interTResE 1 If UE stays in Below condition more than
Ranking is done based on RSRP. And measurement can trigger on both RSRP and RSRQ
Rank_neighbour cell > Rank_serving cell
Rank_serving cell = Measured RSRP_serving cell + qHyst
Rank_neighbour cell = Measured RSRP_neighbour cell – (qOffsetCell+qOffFrq)
Measured RSRP_serving cell
Measured RSRP_neighbour cell
Srxlev_sev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
Neighbour Cell ---------------------------> LTE
DB GUI Parameter MO
-130 -130 qRxLevMinInterF IRFIM
-124 6 interFrqThrH IRFIM
-126 4 interFrqThrL IRFIM
1 1 interTResEut IRFIM
23 23 pMaxInterF IRFIM
0 0 qOffFrq IRFIM
0 0 qOffCell IRFIM
-19 -19 qQualMinR9 IRFIM
-16 3 interFrqQThrHighR9IRFIM
-18 1 interFrqQThrLowR9 IRFIM
GUI Parameter MO
4 eutCelResPrio IRFIM
NOK
Condition NOT SatisfiedInter Frequency Measurement NOT Start Yet
If UE stays in Below condition more than 1 Sec
Condition Satisfied7
2
21
-121
-130 Reselection to neighbour inter LTE will Start
Condition Satisfied4
-15
-19 Reselection to neighbour inter LTE will Start
High Priority-->LTE_Serving
Condition Satisfied
24
-104
-128 Inter Frequency Measurement NOT Start
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Condition SatisfiedCondition Satisfied
23
-105
-128
2
-17
-19
Inter Frequency Measurement Start
If UE stays in Below condition more than 1 Sec
Condition SatisfiedSrxlev_LTE_Serv = QrxlevMeas – qRxLevMin + qRxLevMinOffset – P_compensation 7
-119
-128
Condition Satisfied5
-123
-130 Reselection to neighbour inter LTE will NOT Start Yet
Condition Satisfied3
-16
-19
Condition Satisfied2
-17
-19 Reselection to neighbour inter LTE will NOT Start Yet
NOK
Condition Satisfied
23
-105
-128 Inter Frequency Measurement Start
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Condition SatisfiedCondition Satisfied
23
-105
-128
2
-17
-19
Inter Frequency Measurement Start
If UE stays in Below condition more than 1 Sec
Ranking is done based on RSRP. And measurement can trigger on both RSRP and RSRQ
Condition Satisfied-105
-104
-106
-104 Reselection to neighbour inter LTE will NOT Start Yet
Reselection to neighbour inter LTE will Start
Reselection to neighbour inter LTE will Start
Inter Frequency Measurement NOT Start
Inter Frequency Measurement Start
Reselection to neighbour inter LTE will NOT Start Yet
Reselection to neighbour inter LTE will NOT Start Yet
Inter Frequency Measurement Start
Input, Don’t change any other fields/values
Serving Cell ---------> LTE Neighbour Cell --------------------------->
DB GUI Parameter MO DB GUI
-82 58 sIntrasearch LNCEL -111 4
-120 8 sNonIntrsearch LNCEL -109 6
-120 8 threshSrvLow LNCEL -115 -115
-128 -128 qrxlevMin LNCEL -18 -18
24 24LNCEL
-15 3
-17 2LNCEL
-16 2
-19 -19 qQualMinR9 LNCEL
-15 4LNCEL
GUI Parameter MO GUI
3 cellReSelPrio LNCEL 2
LNCEL: cellReSelPrio > UFFIM: uCelResPrio High Priority-->LTE
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearch (SIB3) Condition SatisfieddBm Srxlev_sev < (2 x sNonIntrsearch(SIB3))
Srxlev = Qrxlevmeas - qrxlevMin (SIB3) 7
dBm
Qrxlevemeas = measured RSRP level -121
dBm qrxlevMin = minimum RSRP level for camping -128
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearchPR9 (SIB3) Condition SatisfiedSqual_sev < sNonIntrsearchQR9 (SIB3) Condition Satisfied
dBm Srxlev_sev < (2 x sNonIntrsearch (SIB3))
Srxlev_sev = Qrxlevmeas - qRxLevMin (SIB3) 7
dBm
Qrxlevemeas = measured RSRP level -121
dBm qRxLevMin = minimum RSRP level for camping -128
Squal_sev = Qualmeas - qQualMinR9 (SIB3) 1
Qualmeas = measured RSRQ level -18
sNonIntrsearchPR9
sNonIntrsearchQR9
threshServingLowQR9
Srxlev = Qrxlevmeas [dBm] - (2 x qrxlevMin (SIB3)) [dBm]
Srxlev_sev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
dBm qQualMinR9 = minimum RSRQ level for camping -19
Unit Reselection Criteria
Sec tResUtra 1 If UE stays in Below condition more than 1
Signal Strength based
Condition SatisfiedSrxlev_LTE_Serv = Qrxlevmeas - qrxlevMin (SIB3) 7
Qrxlevemeas = measured RSRP level -121
qrxlevMin = minimum RSRP level for camping -128
Condition SatisfiedSrxlev_WCDMA_neigh = Qrxlevmeas - qRxLevMinUtra (SIB6) 7
dBm
Qrxlevemeas = measured RSCP level -108
qRxLevMinUtra = minimum RSCP level for camping -115
Signal Quality based
Condition SatisfiedSrxlev_LTE_Serv = QualMeas – qQualMinR9 3
QualMeas = measured RSRQ level -16
qQualMinR9 = minimum RSRQ level for camping -19
Squal_LTE_neighbour > interFrqQThrLowR9 Condition SatisfiedSqual_LTE_neighbour = QualMeas – qQualMinUtra 3
QualMeas = measured RSRQ level -15
qQualMinUtra= minimum RSRP level of neighbour for camping -18
If multiple WCDMA cell satisfy the condition, UE will select to the cell with highest Srxlev_WCDMA_neigh
If parameters are not configured and not broadcast in SIB then UE will use default values i.e. UE will perform reselection when LTE RSRP < -140 dBm and WCDMA cell> -119 dBm for at least 2 seconds
LNCEL: cellReSelPrio < UFFIM: uCelResPrio NOK
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearch (SIB3) Condition SatisfieddBm Srxlev_sev < (2 x sNonIntrsearch (SIB3))
Srxlev = Qrxlevmeas - qRxLevMin (SIB3) 7
Srxlev_LTE_Serv < threshSrvLow (SIB3)
Srxlev_WCDMA_neigh > utraFrqThrL (SIB6)
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMinUtra (SIB6)) [dBm]
Squal_LTE_Serv < threshServingLowQR9(SIB3)
dBm
Qrxlevemeas = measured RSRP level -121
dBm qRxLevMin = minimum RSRP level for camping -128
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearchPR9 (SIB3) Condition SatisfiedSqual_sev < sNonIntrsearchQR9 (SIB3) Condition Satisfied
dBm Srxlev_sev < (2 x sNonIntrsearch (SIB3))
Srxlev_sev = Qrxlevmeas - qRxLevMin (SIB3) 7
dBm
Qrxlevemeas = measured RSRP level -121
dBm qRxLevMin = minimum RSRP level for camping -128
Squal_sev = Qualmeas - qQualMinR9 (SIB3) 1
Qualmeas = measured RSRQ level -18
dBm qQualMinR9 = minimum RSRQ level for camping -19
Unit Reselection Criteria
Sec tResUtra 1 If UE stays in Below condition more than 1
Signal Strength based
Condition SatisfiedSrxlev_WCDMA_neigh = Qrxlevmeas - qRxLevMinUtra (SIB6) 5
dBm
Qrxlevemeas = measured RSCP level -110
qRxLevMinUtra = minimum RSCP level for camping -115
Signal Quality based
Condition SatisfiedSqual_WCDMA_neigh = Qualmeas - qQualMinUtra (SIB6) 4
Qualmeas = measured EcNo level -14
qQualMinUtra = minimum EcNo level for camping -18
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
Srxlev_sev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
Srxlev_WCDMA_neigh > utraFrqThrH (SIB6)
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMinUtra (SIB6)) [dBm]
Squal_WCDMA_neigh > utraFrqQThrHighR9 (SIB6)
Neighbour Cell ---------------------------> UMTS
Parameter MO
utraFrqThrH UFIFM
utraFrqThrL UFIFM
qRxLevMinUtra UFIFM
qQualMinUtra UFIFM
utraFrqQThrHighR9UFIFM
utraFrqQThrLowR9UFIFM
Parameter MO
uCelResPrio UFFIM
Condition Satisfied
WCDMA Measurement Start
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Condition SatisfiedCondition Satisfied
WCDMA Measurement Start
Sec
Condition Satisfied
Condition Satisfied
Reselection to WCDMA will Start
Condition Satisfied
Condition Satisfied
Reselection to WCDMA will Start
If multiple WCDMA cell satisfy the condition, UE will select to the cell with highest Srxlev_WCDMA_neigh
If parameters are not configured and not broadcast in SIB then UE will use default values i.e. UE will perform reselection when LTE RSRP < -140 dBm and WCDMA cell> -119 dBm for at least 2 seconds
Condition Satisfied
WCDMA Measurement Start
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Condition SatisfiedCondition Satisfied
WCDMA Measurement Start
Sec
Condition Satisfied
Reselection to WCDMA will Start
Condition Satisfied
Reselection to WCDMA will Start
Input, Don’t change any other fields/values
Serving Cell ---------> LTE Neighbour Cell --------------------------->
DB GUI Parameter MO DB
-82 58 sIntrasearch LNCEL -111
-120 8 sNonIntrsearch LNCEL -109
-120 8 threshSrvLow LNCEL -115
-128 -128 qrxlevMin LNCEL 24
24 24 sNonIntrsearchPR9 LNCEL
-17 2 sNonIntrsearchQR9 LNCEL
-19 -19 qQualMinR9 LNCEL
-15 4 threshServingLowQR9 LNCEL
GUI Parameter MO
7 cellReSelPrio LNCEL
LNCEL: cellReSelPrio > GNFL: gCelResPrio High Priority-->LTE
RSRP based measurement triggered
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearch (SIB3) Condition SatisfieddBm Srxlev_sev < (2 x sNonIntrsearch(SIB3))
Srxlev = Qrxlevmeas - qrxlevMin (SIB3) 7
dBm
Qrxlevemeas = measured RSRP level -121
dBm qrxlevMin = minimum RSRP level for camping -128
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearchPR9 (SIB3) Condition SatisfiedSqual_sev < sNonIntrsearchQR9 (SIB3) Condition Satisfied
dBm Srxlev_sev < (2 x sNonIntrsearchPR9 (SIB3))
Srxlev_sev = Qrxlevmeas - qRxLevMin (SIB3) 7
dBm
Qrxlevemeas = measured RSRP level -121
dBm qRxLevMin = minimum RSRP level for camping -128
Squal_sev = Qualmeas - qQualMinR9 (SIB3) 1
Qualmeas = measured RSRQ level -18
dBm qQualMinR9 = minimum RSRQ level for camping -19
Srxlev = Qrxlevmeas [dBm] - (2 x qrxlevMin (SIB3)) [dBm]
Srxlev_sev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
Unit Reselection Criteria
Sec tResGer 1 If UE stays in Below condition more than
Signal Strength based
Condition SatisfiedSrxlev_LTE_Serv = Qrxlevmeas - qrxlevMin (SIB3) 7
Qrxlevemeas = measured RSRP level -121
qrxlevMin = minimum RSRP level for camping -128
Condition SatisfiedSrxlev_GSM_neigh = Qrxlevmeas - qRxLevMinGer (SIB7) 7
dBm
Qrxlevemeas = measured RSSI level -108
qRxLevMinGer = minimum RSSI level for camping -115
Signal Quality based
Condition SatisfiedSqual_LTE_Serv = Qualmeas - qQualMinR9 (SIB3) 3
Qualmeas = measured RSRQ level -16
qQualMinR9 = minimum RSRQ level for camping -19
Condition SatisfiedSrxlev_GSM_neigh = Qrxlevmeas - qRxLevMinGer (SIB7) 7
dBm
Qrxlevemeas = measured RSSI level -108
qRxLevMinGer = minimum RSSI level for camping -115
If multiple GSM ARFCN satisfy the condition, UE will select to the cell with highest Srxlev_GSM_neigh
If parameters are not configured and not broadcast in SIB then UE will use default values i.e. UE will perform reselection when LTE RSRP < -140 dBm and GSM cell> -119 dBm for at least 2 seconds
LNCEL: cellReSelPrio < GNFL: gCelResPrio NOK
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearch (SIB3) Condition SatisfieddBm Srxlev_sev < (2 x sNonIntrsearch (SIB3))
Srxlev_LTE_Serv < threshSrvLow (SIB3)
Srxlev_GSM_neigh > gerFrqThrL (SIB7)
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMinGer (SIB7)) [dBm]
Squal_LTE_Serv < threshSrvLowQR9 (SIB3)
Srxlev_GSM_neigh > gerFrqThrL (SIB7)
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMinGer (SIB7)) [dBm]
Srxlev = Qrxlevmeas - qRxLevMin (SIB3) 7
dBm
Qrxlevemeas = measured RSRP level -121
dBm qRxLevMin = minimum RSRP level for camping -128
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Unit Measurement Criteria
Srxlev_sev < sNonIntrsearchPR9 (SIB3) Condition SatisfiedSqual_sev < sNonIntrsearchQR9 (SIB3) Condition Satisfied
dBm Srxlev_sev < (2 x sNonIntrsearch (SIB3))
Srxlev_sev = Qrxlevmeas - qRxLevMin (SIB3) 7
dBm
Qrxlevemeas = measured RSRP level -121
dBm qRxLevMin = minimum RSRP level for camping -128
Squal_sev = Qualmeas - qQualMinR9 (SIB3) 1
Qualmeas = measured RSRQ level -18
dBm qQualMinR9 = minimum RSRQ level for camping -19
Unit Reselection Criteria
Sec tResGer 1 If UE stays in Below condition more than
Signal Strength based
Condition SatisfiedSrxlev_GSM_neigh = Qrxlevmeas - qRxLevMinGer (SIB7) 5
dBm
Qrxlevemeas = measured RSSI level -110
qRxLevMinGer = minimum RSSI level for camping -115
For higher priority neighbour cell there is no signal quality based trigger in GSM
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
Srxlev_sev = Qrxlevmeas [dBm] - (2 x qRxLevMin (SIB3)) [dBm]
Srxlev_GSM_neigh > gerFrqThrH (SIB7)
Srxlev = Qrxlevmeas [dBm] - (2 x qRxLevMinGer (SIB7)) [dBm]
Neighbour Cell ---------------------------> GSM
GUI Parameter MO
4 gerFrqThrH GNFL
6 gerFrqThrL GNFL
-115 qRxLevMinGer GNFL
24 pMaxGer GNFL
GUI Parameter MO
1 gCelResPrio GFIFM
Condition Satisfied
GSM Measurement Start
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Condition SatisfiedCondition Satisfied
GSM Measurement Start
1 Sec
Condition Satisfied
Condition Satisfied
Reselection to GSM will Start
Condition Satisfied
Condition Satisfied
Reselection to GSM will Start
If multiple GSM ARFCN satisfy the condition, UE will select to the cell with highest Srxlev_GSM_neigh
If parameters are not configured and not broadcast in SIB then UE will use default values i.e. UE will perform reselection when LTE RSRP < -140 dBm and GSM cell> -119 dBm for at least 2 seconds
Condition Satisfied
GSM Measurement Start
RL50 Onwards, if RSRQ parameters are configured then both RSRP & RSRQ based measurement need to be satisfied
Condition SatisfiedCondition Satisfied
GSM Measurement Start
1 Sec
Condition Satisfied
Reselection to GSM will Start
If parameters are not configured and not broadcast in SIB then UE will use default values i.e. UE will perform reselection when LTE RSRP < -140 dBm and GSM cell> -119 dBm for at least 2 seconds
Input, Don’t change any other fields/values
Thresholds GUI DBThreshold1 90 -50Threshold2a 26 -114Threshold2InterFreq 24 -116Threshold2WCDMA 20 -120Threshold2GERAN 0 -140Threshold3 15 -125Threshold4 10 -130
Threshold4 < Threshold3 < Threshold2_InterLTE/InterRAT <= Threshold2a < Threshold1
Input, Don’t change any other fields/values
Serving Cell --------->LTE
DB GUI Parameter MO
1 1 enableBetterCellHo LNCEL
320 ms a3TimeToTrigger LNCEL
-114 26 threshold2a LNCEL
2 4 a3Offset LNCEL
1 2 hysA3Offset LNCEL
Unit Measurement Criteria
dBm RSRP_serving < threshold2a Condition SatisfiedRSRP_serving -115
Unit A3 Criteria
RSRP_neighbour – hysA3Offset > RSRP_serving + a3Offset Condition SatisfieddBm RSRP_serving -116
RSRP_neighbour -111
Input, Don’t change any other fields/values
Serving Cell --------->LTE
DB GUI Parameter MO
1 1 enableBetterCellHo LNCEL
320 ms a3TimeToTrigger LNCEL
-114 26 threshold2a LNCEL
-116 24 threshold2InterFreq LNCEL
1 2 hysThreshold2a LNCEL
1 2 hysThreshold2InterFreq LNCEL
Unit Measurement Criteria (Activation--->Event A2)
RSRP_serving + hysThreshold2InterFreq < threshold2InterFreq
RSRP_serving
Unit Measurement Criteria (Deactivation--->Event A1)
dBm RSRP_serving - hysThreshold2a > threshold2a
RSRP_serving
Unit A3 Criteria
RSRP_neighbour – hysA3OffsetRsrpInterFreq > RSRP_serving + a3OffsetRsrpInterFreq
dBm RSRP_serving
RSRP_neighbour
Neighbour Cell ---------> LTE
DB GUI Parameter MO
3 6 a3OffsetRsrpInterFreq LNHOIF
a3OffsetRsrqInterFreq LNHOIF
1 2 hysA3OffsetRsrpInterFreq LNHOIF
hysA3OffsetRsrqInterFreq LNHOIF
Condition Satisfied
-118
A2 Event Satisfied
Condition Satisfied-113
A1 Event Satisfied
Condition Satisfied-118
-113
A3 Event Satisfied
Input, Don’t change any other fields/values
Serving Cell --------->LTE
DB GUI Parameter MO
1 1 enableBetterCellHo LNCEL
320 ms a5TimeToTrigger LNCEL
-82 58 threshold2a LNCEL
-110 30 threshold3 LNCEL
-109 31 threshold3a LNCEL
1 2 hysThreshold3 LNCEL
Unit Measurement Criteria
dBm RSRP_serving < threshold2a Condition SatisfiedRSRP_serving -83
Unit A5 Criteria
RSRP_serving + hysThreshold3 < threshold3 Condition SatisfiedRSRP_neighbour - hysThreshold3 > threshold3a Condition Satisfied
dBm RSRP_serving -112
RSRP_neighbour -108
Input, Don’t change any other fields/values
Serving Cell --------->LTE
DB GUI Parameter MO
1 1 enableBetterCellHo LNCEL
320 ms a3TimeToTrigger LNCEL
-114 26 threshold2a LNCEL
-116 24 threshold2InterFreq LNCEL
1 2 hysThreshold2a LNCEL
1 2 hysThreshold2InterFreq LNCEL
Unit Measurement Criteria (Activation--->Event A2)
RSRP_serving + hysThreshold2InterFreq < threshold2InterFreq
RSRP_serving
Unit Measurement Criteria (Deactivation--->Event A1)
dBm RSRP_serving - hysThreshold2a > threshold2a
RSRP_serving
Unit A5 Criteria
RSRP_serving + hysThreshold3InterFreq < threshold3InterFreq
RSRP_neighbour - hysThreshold3InterFreq > threshold3aInterFreq
dBm RSRP_serving
RSRP_neighbour
Neighbour Cell ---------> LTE
DB GUI Parameter MO
-136 4 threshold3InterFreq LNHOIF
-137 3 threshold3aInterFreq LNHOIF
1 2 hysThreshold3InterFreq LNHOIF
Condition Satisfied
-118
A2 Event Satisfied
Condition Satisfied-113
A1 Event Satisfied
Condition SatisfiedCondition Satisfied
-138
-136
A5 Event Satisfied
Input, Don’t change any other fields/values
RSRP or RSRQ Based Re-direction
Serving Cell --------->LTE
DB GUI Parameter MO
-120 20 threshold4 LNCEL
2 4 hysthreshold4 LNCEL
320 msLNCEL
-17 -17 threshold4Rsrq LNCEL
1 1 hysthreshold4Rsrq LNCEL
480 msLNCEL
Unit Measurement Criteria
dBm RSRP_serving < threshold4 – hysthreshold4 Condition SatisfiedRSRQ_serving < threshold4Rsrq – hysthreshold4Rsrq Condition Satisfied
RSRP_serving -123
RSRQ_serving -19
a2TimeToTriggerRedirect
a2TimeToTriggerRedirectRsrq
Condition SatisfiedCondition Satisfied
A2 Event Satisfied
RRC Connection Release with Re-direction will Start
Input, Don’t change any other fields/values
Serving Cell --------->LTE
Unit Measurement Criteria
dBm RSRP_serving +OffsetFreqUtra - hysB1ThresholdCSFBUtra > b1ThresholdCSFBUtraRscp
RSRP_serving
Neighbour Cell ---------> WCDMA
DB GUI Parameter MO
-115 5 b1ThresholdCSFBUtraRscp LNHOW
-22 2 b1ThresholdCSFBUtraEcNoLNHOW
2 4 hysB1ThresholdCSFBUtra LNHOW
2 4 OffsetFreqUtra LNHOW
Condition Satisfied-114
B1 Event Satisfied
Input, Don’t change any other fields/values
Serving Cell --------->LTE
DB GUI Parameter MO
-95 45 threshold2a LNCEL
-100 40 threshold2WCDMA LNCEL
1 2 hysThreshold2a LNCEL
1 2 hysThreshold2WCDMA LNCEL
Unit Measurement Criteria (Activation--->Event A2)
RSRP_serving + hysThreshold2WCDMA < threshold2WCDMA
RSRP_serving
Unit Measurement Criteria (Deactivation--->Event A1)
dBm RSRP_serving - hysThreshold2a > threshold2a
RSRP_serving
Unit B2 Criteria
RSRP_serving + hysB2ThresholdUtra < b2threshold1Utra
RSRP_neighbour - hysB2ThresholdUtra >b2threshold2UtraRscp
dBm RSRP_serving
RSRP_neighbour
Neighbour Cell ---------> UMTS
DB GUI Parameter MO
-119 21 b2threshold1Utra LNHOW
-115 5 b2threshold2UtraRscp LNHOW
-23 2 b2threshold2UtraEcN0 LNHOW
1 2 hysB2ThresholdUtra LNHOW
0 0 offsetFreqUtra LNHOW
Condition Satisfied
-102
A2 Event Satisfied
Condition Satisfied-93
A1 Event Satisfied
Condition SatisfiedCondition Satisfied
-121
-113
B2 Event Satisfied
Input, Don’t change any other fields/values
Serving Cell --------->LTE
DB GUI Parameter MO
-117 23 threshold2a LNCEL
-120 20 threshold2GERAN LNCEL
2 4 hysThreshold2a LNCEL
1 2 hysThreshold2GERAN LNCEL
Unit Measurement Criteria (Activation--->Event A2)
RSRP_serving + hysThreshold2GERAN < threshold2GERAN
RSRP_serving
Unit Measurement Criteria (Deactivation--->Event A1)
dBm RSRP_serving - hysThreshold2a > threshold2a
RSRP_serving
Unit B2 Criteria
RSRP_serving + hysB2ThresholdGERAN < b2threshold1GERAN
RSRP_neighbour - hysB2ThresholdGERAN >b2threshold2UtraRSSI
dBm RSRP_serving
RSRP_neighbour
Neighbour Cell ---------> GSM
DB GUI Parameter MO
-121 19 b2threshold1GERAN LNHOG
-95 15 b2Threshold2RssiGERAN LNHOG
1 2 hysB2ThresholdGERAN LNHOG
0 0 offsetFreqGERAN LNHOG
Condition Satisfied
-122
A2 Event Satisfied
Condition Satisfied-114
A1 Event Satisfied
Condition SatisfiedCondition Satisfied
-123
-93
B2 Event Satisfied
Basic Rules (3GPP TS 36.304)
Cell Selection (5.2.3.2)The cell selection criterion S is fulfilled when:
Srxlev > 0 AND Squal > 0 whereSrxlev = Qrxlevmeas – (Qrxlevmin + Qrxlevminoffset) – Pcompensation Squal = Qqualmeas – (Qqualmin + Qqualminoffset)
Measurement rules for cell re-selection (5.2.4.2)When evaluating Srxlev and Squal of non-serving cells for reselection purposes, the UE shall use parameters provided by the serving cell.
Intra frequency measurement de-activationSrxlev > SIntraSearchP and Squal > SIntraSearchQ
Inter Frequency and Inter RAT measurement de-activation for equal and Low priority cellSrxlev > SnonIntraSearchP and Squal > SnonIntraSearchQ
Inter Frequency and Inter RAT measurement de-activation for high priority cellMeasurement is mandatory
Inter-frequency and inter-RAT Cell Reselection criteria (5.2.4.5) If threshServingLowQ is provided in SIB3, cell reselection to a cell on high priority E-UTRAN frequency or inter RAT frequency than the serving will be performed if
A cell of a higher priority EUTRAN or UTRAN FDD RAT/ frequency fulfils Squal > ThreshX, HighQ during a time interval TreselectionRAT; or
A cell of a higher priority UTRAN TDD, GERAN or CDMA2000 RAT/ frequency fulfils Srxlev > ThreshX, HighP during a time interval TreselectionRAT; and
More than 1 second has elapsed since the UE camped on the current serving cell.
Otherwise, cell reselection to a cell on a higher priority E-UTRAN frequency or inter-RAT frequency than the serving frequency shall be performed if:
A cell of a higher priority RAT/ frequency fulfils Srxlev > ThreshX, HighP during a time interval TreselectionRAT; and
More than 1 second has elapsed since the UE camped on the current serving cell.
Cell reselection to a cell on an equal priority E-UTRAN frequency shall be based on ranking, Rank_neigh>Rank_serving
If threshServingLowQ is provided in SIB then cell on low priority E-UTRAN frequency or inter RAT frequency than the serving will be
The serving cell fulfils Squal < ThreshServing, LowQ and a cell of a lower priority EUTRAN or UTRAN FDD RAT/ frequency fulfils Squal > ThreshX, LowQ during a time interval TreselectionRAT; or
The serving cell fulfils Squal < ThreshServing, LowQ and a cell of a lower priority UTRAN TDD, GERAN or CDMA2000 RAT/ frequency fulfils Srxlev > ThreshX, LowP during a time interval TreselectionRAT; and
Otherwise, cell reselection to a cell on a lower priority E-UTRAN frequency or inter-RAT frequency than the serving frequency shall be performed if:
The serving cell fulfils Srxlev < ThreshServing, LowP and a cell of a lower priority RAT/ frequency fulfils Srxlev > ThreshX, LowP during a time interval TreselectionRAT; and
Parameter Description
Type of Parameter Managed Object Parameter Name Description Default ValueCell Selection
Cell Re-selection (LTE Intra Frequency)
When evaluating Srxlev and Squal of non-serving cells for reselection purposes, the UE shall use parameters provided
If threshServingLowQ is provided in SIB3, cell reselection to a cell on high priority E-UTRAN frequency or inter RAT frequency than the serving will be performed if
A cell of a higher priority EUTRAN or UTRAN FDD RAT/ frequency fulfils Squal > ThreshX, HighQ during a
A cell of a higher priority UTRAN TDD, GERAN or CDMA2000 RAT/ frequency fulfils Srxlev > ThreshX, HighP
Otherwise, cell reselection to a cell on a higher priority E-UTRAN frequency or inter-RAT frequency than the serving
A cell of a higher priority RAT/ frequency fulfils Srxlev > ThreshX, HighP during a time interval TreselectionRAT;
Cell reselection to a cell on an equal priority E-UTRAN frequency shall be based on ranking, Rank_neigh>Rank_serving
If threshServingLowQ is provided in SIB then cell on low priority E-UTRAN frequency or inter RAT frequency than the serving will be
The serving cell fulfils Squal < ThreshServing, LowQ and a cell of a lower priority EUTRAN or UTRAN FDD RAT/
The serving cell fulfils Squal < ThreshServing, LowQ and a cell of a lower priority UTRAN TDD, GERAN or CDMA2000 RAT/ frequency fulfils Srxlev > ThreshX, LowP during a time interval TreselectionRAT; and
Otherwise, cell reselection to a cell on a lower priority E-UTRAN frequency or inter-RAT frequency than the serving
The serving cell fulfils Srxlev < ThreshServing, LowP and a cell of a lower priority RAT/ frequency fulfils Srxlev >
Recommonded Value Any ConcernCell Selection
Cell Re-selection (LTE Intra Frequency)