BB Alarm Troubleshooting [PDF]

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BB and DU alarm troubleshooting 1. Alarm: M Inconsistent Configuration SectorEquipmentFunction=S5 (Configuration or Customization Error) Solution: PKT0009T_2NB01> get SectorEquipmentFunction=S5 ============================================================================== 1241

NodeSupport=1,SectorEquipmentFunction=S5

============================================================================== administrativeState

1 (UNLOCKED)

availabilityStatus

i[0] =

availableSectorPower

0

configuredOutputPower

40000

eUtranFqBands s[6] = Band3: full on all Band4: partial on all Band9: full on all Band10: partial on all Band35: partial on all Band66: partial on all mixedModeRadio

true

operationalState

1 (ENABLED)

reservedBy

[1] =

>>> reservedBy = ENodeBFunction=1,SectorCarrier=5 rfBranchRef

[4] =

>>> rfBranchRef = Equipment=1,AntennaUnitGroup=5,RfBranch=1 >>> rfBranchRef = Equipment=1,AntennaUnitGroup=5,RfBranch=2 >>> rfBranchRef = Equipment=1,AntennaUnitGroup=5,RfBranch=3 >>> rfBranchRef = Equipment=1,AntennaUnitGroup=5,RfBranch=4 sectorEquipmentFunctionId

S5

userLabel utranFddFqBands on all

s[4] = Band III: full on all Band IV: partial on all Band IX: full on all Band X: partial

===================================================================== Total: 1 MOs

Check the configuration of rfbranch one by one. In this case, the parameter of dlTrafficDelay for rfbrach 2 is wrong, > get Equipment=1,AntennaUnitGroup=5,RfBranch=1 ===================================================================================== 977

Equipment=1,AntennaUnitGroup=5,RfBranch=1

===================================================================================== auPortRef

[1] =

>>> auPortRef = Equipment=1,AntennaUnitGroup=5,AntennaUnit=1,AntennaSubunit=1,AuPort=1 dlAttenuation

i[15] = 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6

dlTrafficDelay

i[15] = 114 114 114 114 114 114 114 114 114 114 114 114 114 114 114

reservedBy

[1] =

>>> reservedBy = NodeSupport=1,SectorEquipmentFunction=S5 rfBranchId

1

rfPortRef

FieldReplaceableUnit=RRU-5,RfPort=A

tmaRef ulAttenuation

i[15] = 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6

ulTrafficDelay

i[15] = 114 114 114 114 114 114 114 114 114 114 114 114 114 114 114

userLabel ===================================================================================== Total: 1 MOs

> get Equipment=1,AntennaUnitGroup=5,RfBranch=2 ===================================================================================== 872

Equipment=1,AntennaUnitGroup=5,RfBranch=2

===================================================================================== auPortRef

[1] =

>>> auPortRef = Equipment=1,AntennaUnitGroup=5,AntennaUnit=1,AntennaSubunit=1,AuPort=2 dlAttenuation

i[15] = 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6

dlTrafficDelay

i[15] = 114 114 114 114 114 114 114 114 114 114 114 114 114 114 114

reservedBy

[1] =

>>> reservedBy = NodeSupport=1,SectorEquipmentFunction=S5

rfBranchId rfPortRef

2 FieldReplaceableUnit=RRU-5,RfPort=B

tmaRef ulAttenuation -1 -1 -1 -1 -1 -1 -1 -1 -1

i[40] = -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1

ulTrafficDelay -1 -1 -1 -1 -1 -1 -1 -1 -1 -1

i[40] = -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1

userLabel Total: 1 MOs

Step1: > set 872 ulAttenuation 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6 Set ulAttenuation on following 1 MOs ? =================================================================================== 872 Equipment=1,AntennaUnitGroup=5,RfBranch=2 =================================================================================== Set ulAttenuation on 1 MOs. Are you Sure [y/n] ? y ===================================================================================== Id MO

ulAttenuation

Result

===================================================================================== 872 AntennaUnitGroup=5,RfBranch=2

6,6,6,6,6,6,6,6,6,6,6,6,6,6,6 >>> Set.

===================================================================================== Total: 1 MOs attempted, 1 MOs set (Takes effect: cells using RfBranch disabled/enabled) > set 872 ulTrafficDelay 114,114,114,114,114,114,114,114,114,114,114,114,114,114,114 =================================================================================== 872 Equipment=1,AntennaUnitGroup=5,RfBranch=2 =================================================================================== Set ulTrafficDelay on 1 MOs. Are you Sure [y/n] ? y ===================================================================================== Id MO

ulTrafficDelay

Result

=====================================================================================

872 AntennaUnitGroup=5,RfBranch=2 114,114,114,114,114,114,114,114,114,114,114,114,114,114,114 >>> Set. ===================================================================================== Total: 1 MOs attempted, 1 MOs set (Takes effect: cells using RfBranch disabled/enabled)

Step 2: Bl and deblock cell

Note: ulTrafficDelay and dlTrafficDelay: The value range for each entry is 0..500000 (0..500000 ns). Unused entries are set to -1. 2. NGS

Background: NGS is used for frequency synchronization, the source is NTP server. In the synchronization group LTE is the role for SYNC_PROVIDER, which means LTE get the sync signal directly from NTP server and GSM/UMTS is the role for SYNC_RECEIVER.

Alarm: W Node Group Sync Configuration Fault Synchronization=1,RadioEquipmentClock=1,NodeGroupSyncMember=1 (More than one node has the same Node Priority)

Root Cause: LTE baseband don’t play the role for provide due to UMTS is up before LTE ready. After LTE back to service, both LTE/UMTS stay the status for SYNC_PROVIDER.

Solution: Just stop receive sync signal using the action below for both UMTS and LTE Step1: UMTS: bl TransportNetwork=1,Synchronization=1,NodeGroupSyncMember=1 LTE: Transport=1,Synchronization=1,RadioEquipmentClock=1,NodeGroupSyncMember=1 Step2:

deblock LTE first, check NGS local status, make sure it’s SYNC_PROVIDER Then deblock UMTS, check if it is SYNC_RECEIVER Step3: Check the alarm to see if it ceases or not. 3. Online En-rollment Issue: Issue: Ladp server no response. Solution: Step1: [Node Side] Change the parameter reservedByUser of MO SystemFunctions=1,SecM=1,CertM=1,NodeCredential=1 to empty ([0]) > get SystemFunctions=1,SecM=1,CertM=1,NodeCredential=1 reservedByUser ===================================================================== MO

Attribute

Value

===================================================================== SecM=1,CertM=1,NodeCredential=1

reservedByUser [4] =

>>> reservedByUser = SystemFunctions=1,SecM=1,UserManagement=1,LdapAuthenticationMethod=1,Ldap=1 >>> reservedByUser = SystemFunctions=1,SysM=1,NetconfTls=1 >>> reservedByUser = SystemFunctions=1,SysM=1,CliTls=1 >>> reservedByUser = SystemFunctions=1,SysM=1,HttpM=1,Https=1 ====================================================================== Total: 1 MOs

Step2: [Node Side] Re-run the online certificate enrollment, make sure it succeed. Step3: [Node Side] Finish the post work after online certificate enrollment. Step4:

[OSS Side] Execute the WA provided by Hannu (remove the node name from /var/tmp/nma_added. 4. Alarm: Inconsistent Configuration          FieldReplaceableUnit=1,RiPort=A (Either the CPRI cable is wrongly connected or there is a configuration fault.) Inconsistent Configuration          FieldReplaceableUnit=RRU-4(NO HW detected) Step1. give a cold restart to the baseband acc Equipment=1,FieldReplaceableUnit=1 restartunit After the node back, check alarm, if not cleared, go to next step step2. Match cell with sector and RRU to address the issue location > get fdd sector ===================================================================== MO                                                      Attribute         Value ===================================================================== EUtranCellFDD=CMI6945P_9NB01_S01                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=9 EUtranCellFDD=CMI6945P_9NB01_S02                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=10 EUtranCellFDD=CMI6945P_9NB01_S03                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=11 EUtranCellFDD=CMI6945R_1NB01_S01                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=5 EUtranCellFDD=CMI6945R_1NB01_S02                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=6 EUtranCellFDD=CMI6945R_1NB01_S03                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=7 EUtranCellFDD=CMI6945R_1NB01_S04                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=8 EUtranCellFDD=CMI6945T_2NB01_S01                        sectorCarrierRef  [1] =

 >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=1 EUtranCellFDD=CMI6945T_2NB01_S02                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=2 EUtranCellFDD=CMI6945T_2NB01_S03                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=3 EUtranCellFDD=CMI6945T_2NB01_S04                        sectorCarrierRef  [1] =  >>> sectorCarrierRef = ENodeBFunction=1,SectorCarrier=4 =====================================================================

Then you can easily match the cells to its sector carrier, then the RRU can be match. Ex: cell EUtranCellFDD=CMI6945R_1NB01_S03, its sector carrier is 7, then its RRU is RRU-7 For this project, LTE 900 share RRU with GSM 900, and RRU port DATA_1 used for LTE while DATA_2 used for GSM LTE 1800 is LTE only, then RRU DATA_1 should be used for LTE LTE 2100 share RRU with UMTS 2100, and RRU port DATA_2 used for LTE while DATA_1 used for GSM Step3: check rilink configuration get rilink riPortRef Ex. FieldReplaceableUnit=1,RiPort=A (Either the CPRI cable is wrongly connected or there is a configuration fault.) > get rilink riPortRef ===================================================================== MO                                                      Attribute         Value ===================================================================== RiLink=1                                                riPortRef1        FieldReplaceableUnit=1,RiPort=A RiLink=1                                                riPortRef2        FieldReplaceableUnit=RRU5,RiPort=DATA_2 From the information get from step 2, you can easily find this RRU is used for L1800, so DATA_1 should be used.

There will be alarm like cable wrongly connected or no HW detected if the port reference is incorrect. Just modify the riportRef2 with right one, cell/rru need to be locked during modify Please go to next step if all configuration is correct or the alarm still there step4: call ASP to check the HW connection then check again. Please note that we can only call ASP check HW connection after we check the configuration ourselves, Otherwise they will complain if HW connection is ok while the root cause is wrong configuration in baseband! 5. Power setting Check: For 10MHZ it should be 20+20 – 40W For 5MHZ it should be 10+10 – 20W IBC – If we use MIMO configuration it’s same as above For SIMO 10MHZ it should be 20W 5MHZ it should be 10W 6. Alarm: M RF Reflected Power High             FieldReplaceableUnit=RRU-4, RfPort=A (Reflected power too high [ A ]) Solution: Step1: If issue port is ‘A’ in the alarm slogan, just let ASP check the feeder cable connection between RRU RF port A and antenna. If issue port is ‘B’, check by next step Step2: issue port is B Check type of related issue cells, check with ASP about it is IBC or MACRO.

If issue cell is MACRO, just let ASP check the feeder cable connection between RRU rf port B and antenna. If issue cell is SISO, just inform me to modify the configuration. get . noofused bl fdd bl sector set SectorEquipmentFunction=S1 rfBranchRef Equipment=1,AntennaUnitGroup=1,RfBranch=1 set SectorCarrier noOfTxAntennas 1 set SectorCarrier noOfRxAntennas 1 set RfPort=B vswrSupervisionActive false bl Equipment=1,AuxPlugInUnit=RRU-1,DeviceGroup=ru,RfPort=B deb fdd deb sector

7. Alarm: 2016-05-13 09:39:04 m Feature Resource Missing RfPort=A (RfPort has no VSWR capability)

FieldReplaceableUnit=RRU-4,

Step1: >get . vswr FieldReplaceableUnit=RRU-4,RfPort=A

vswrSupervisionActive true

FieldReplaceableUnit=RRU-4,RfPort=A

vswrSupervisionSensitivity 50

FieldReplaceableUnit=RRU-4,RfPort=A

vswrValue

Struct{3}

Step2: Set FieldReplaceableUnit=RRU-4,RfPort=A vswrSupervisionActive false 8. Alarm:

2016-05-13 09:51:27 M Resource Allocation Failure EUtranCellFDD=LPG8201T_2NB01_R01 (Requested TX-power is not available totalPowermW: 7007.134651, availPowermW: 5128.613840) Note: L2100 s4, IBC Step1: >get . power SectorEquipmentFunction=S4 SectorEquipmentFunction=S4

availableSectorPower 10000 configuredOutputPower 40000

Step2: >set SectorEquipmentFunction=S4 configuredOutputPower 10000 Step3: >restart RRU

9. Alarm: RaxDeviceGroup_GeneralSwError Subrack=1,Slot=1,PlugInUnit=1,PiuDevice=5,RaxDeviceGroup=1 (equipment_malfunction) Background: This alarm occurred on 3G side Solution: Restart Piudevice=5 10. Alarm: 2016-05-14 09:15:52 m Service Degraded EUtranCellFDD=NKW8559T_2NB01_S01 (PerformanceDegraded) Check power, Number of TX/RX, Rilink Ref 11. Alarm: 2016-05-14 10:34:38 m Link Failure id 1, unitId 1, portNo 3(Mixed Mode)) 12. Alarm:

RiLink=4 (Not in operation, additionalData:

2016-05-23 09:05:38 w Sync Frequency Server Reachability Fault Synchronization=1,RadioEquipmentClock=1,RadioEquipmentClockReference=1 (No IP connectivity towards NTP server) Symptom:

Solution: Step1: > get . syncServerNtpIpAddress ===================================================================== MO

Attribute

Value

===================================================================== Ntp=1,NtpFrequencySync=1 syncServerNtpIpAddress 10.79.36.16 Ntp=1,NtpFrequencySync=2

syncServerNtpIpAddress 10.79.36.34

===================================================================== Total: 2 MOs Step2: Check IP design from Alice Wang mail. Check the NTP server IP. Please modify it if here is the wrong IP. Step3: > set Ntp=1,NtpFrequencySync=1

syncServerNtpIpAddress 10.79.36.16

Set syncServerNtpIpAddress on following 1 MOs ? ===================================================================== 6151 Transport=1,Ntp=1,NtpFrequencySync=1 =====================================================================

Set syncServerNtpIpAddress on 1 MOs. Are you Sure [y/n] ? y ===================================================================== Id MO

syncServerNtpIpAddress Result

===================================================================== 6151 Ntp=1,NtpFrequencySync=1

10.79.36.16

>>> Set.

===================================================================== Total: 1 MOs attempted, 1 MOs set

> set Ntp=1,NtpFrequencySync=2 syncServerNtpIpAddress 10.79.36.34 ===================================================================== 6152 Transport=1,Ntp=1,NtpFrequencySync=2 ===================================================================== Set syncServerNtpIpAddress on 1 MOs. Are you Sure [y/n] ? y

===================================================================== Id MO

syncServerNtpIpAddress Result

===================================================================== 6152 Ntp=1,NtpFrequencySync=2 10.79.36.34 >>> Set. ===================================================================== Total: 1 MOs attempted, 1 MOs set Step4: Restart the Node. 13. Alarm: 2016-05-23 09:31:32 w SFP Stability Problem FieldReplaceableUnit=R503,RiPort=10 (SFP RX-LOW_PWR alarm, additionalData: id 1, unitId 1024, portNo 9) Description: This is equipment alarm. Solution:

Ask asp check rilink, re-plugin SFP module.