ENodeB Faults

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Operating Documentation,

Issue 01

Flexi Multiradio BTS LTE Faults

DN0980455

Issue 05A

Approval Date 2013-09-23

Confidential

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DN0980455 Id:0900d80580a2fb93 3

List of tables

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10 Id:0900d80580a3014f DN0980455

Summary of changes

Changes between document issues are cumulative. Therefore, the latest document issue contains all changes made to previous issues.

Changes between issues 05 (2013-06-21, RL50) and 05A (2013-09-23, RL50) New faults:

• Antenna line device missing software • Antenna line switched off

• Antenna link is down

• Automatic BTS Operator Certificate retrieval unsuccessful • BTS vendor-specific file fault

• BTS SW download or activation failed • DC voltage administratively disabled • Failure in trace session

• GPS Receiver alarm: control interface not available • High memory consumption

• Neighbor cell ambiguity detected • Post test failed

• PPS reference missing • SFP HW Failure

• Unit synchronization failed • Unknown HW resource

• Vendor BTS certificate due to expire • X2 interface setup failure

Modified faults:

• $Protocol Timing source lost [on unit $U] [, interface $IF] • AIS on unit $U, interface $IF

• Antenna Carrier configuration failure

• Auto-negotiation mismatch, on unit $U, Ethernet interface $IF • BFD group $bfdGrpId down

• BFD $session down, egress, $sourceIP to $destinationIP • BFD $session down, ingress, $sourceIP to $destinationIP • BTS reset required

• BTS time not corrected

• BTS Trust Anchor expired or due to expire • CCM fault level $ prio $p cause $c

• Cell configuration data distribution failed • Cell power failure

• Cell reconfiguration data distribution failed • Commissioning error: <x>

• Cooling fan broken • Cooling fan broken: <X>

• Cooling fan has reduced from the set speed • Cooling fan is over speeding

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DN0980455 Id:0900d80580a3014f 11 • Critical BER detected on the optical connection to Radio Module

• CRL update failure due to $cause • Dead Peer Detected

• EBER on unit $U, interface $IF

• ETH AIS fault interface $IF level $l mac $x

• Five failed logins to FTM due to wrong user name or password • FTM booted at $date due to $RCause

• Incompatible SW version detected

• Link OAM critical link event $E on unit $U, interface $F • Link OAM link lost on unit $U, interface $F

• Link OAM loopback inserted on unit $U, interface $F by $P peer • LOF on unit $U, interface $IF

• LOMF on slot $U, interface $IF

• LOS on unit $U, [Ethernet] interface $IF

• Master unit has lost connection to the slave unit • Maximum number of neighbor eNBs/cells exceeded

• Missing or non-compliant SFP module on unit $U, interface $I • Missing RP3-01 link

• Not able to synchronize baseband bus with <x> • NTP server is not accessible

• Parallel RP3-01 link length mismatch • Radio master conflict

• RDI on unit $U, interface $IF • RF Module failure

• RX out of order

• S1 interface recovery failure • S1 interface setup failure

• SyncE Quality Level Degraded on unit $UID, interface $IF • SyncE SSM Timed Out on unit $UID, interface $IF • Synchronization lost

• Technical log buffer freezing • ToP master service $IP unusable • Transport module missing: $unit • TWAMP PLR Threshold Crossed • TWAMP RTT Threshold Crossed • Unsupported HW device

• VSWR minor alarm

• X2 interface recovery failure

Removed fault:

• License missing for feature $feature on interface $if • Maximum number of LTE neighbor relations is exceeded • Maximum number of LTE NR per cell and carrier is exceeded • Pipe dangerously overheating

• RF sensor temperature too high in Flexi Lite • Routing misconfiguration for application $a

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12 Id:0900d80580a3014f DN0980455

Changes between issues 04C (2013-04-22, RL40) and 05 (2013-06-21, RL50) New faults:

• 3GPP/AISG communication administratively disabled

• Auto-negotiation mismatch, on unit $U, Ethernet interface $IF • Automatic cell recovery not possible

• BB bus message in the wrong slot

• BTS Trust Anchor expired or due to expire • Cell reconfiguration data distribution failed • Faulty configuration of system modules

• Maximum number of LTE neighbor relations is exceeded • Maximum number of LTE NR per cell and carrier is exceeded • Message routing problem in receiver (RX)

• Overload collision in transmitter

• RP3 routing collisions are detected on FR module • S1 eNB configuration update

• Summing not enabled for message type • Synchronization master missing

• Transmission rule collision in Muksu

Modified faults:

• # autonomous reset as recovery action

• $Protocol timing source lost on unit $U [, interface $IF] • 10b8b coding error in optical interface device <opt link/RP3> • 2M external reference missing

• [User defined]

• AIS on unit $U, interface $IF

• Antenna Carrier configuration failure • Antenna line device HW failure • Antenna line faulty

• Baseband bus configuration of <x> was rejected • Baseband bus failure

• BB bus reception error (summing device) • BFD group $bfdGrpId down

• BFD session down in egress direction for session $S • BFD session down in ingress direction for session $S • Boot configuration inconsistency detected

• BTS blocked

• BTS configuration not supported • BTS file error

• BTS internal SW management problem • BTS is uncommissioned

• BTS master clock tuning failure • BTS reference clock missing • BTS reset required

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DN0980455 Id:0900d80580a3014f 13 • CCM fault level $ prio $p cause $c

• Cell blocked

• Cell configuration data distribution failed • Cell power failure

• Commissioning error: <x> • Communication failure • Configuration error: <x> • Cooling fan broken: <X>

• CRL update failure due to cause $C • Dead Peer Detected

• Difference between BTS master clock and reference frequency • Distributed site support not enabled

• EBER on unit $U, interface $IF

• ETH AIS fault interface $IF level $l mac addr $x

• Failure in connection between BTS and iOMS or 3rd party tool • Failure in optical RP3 interface

• Fan module operation degraded: <X> • Fault diagnostics rule file error • File corrupted in SW download • File System access failed

• Five failed logins to FTM due to wrong user name or password • Flash operation failure

• Frame clock missing • FSP in resetting state • FSP overheating

• FTM booted at $date due to $RCause • FTM Toggling <Fault name>

• GPS receiver alarm: EEPROM invalid • GPS receiver alarm: no stored position • GPS receiver alarm: position questionable • GPS receiver alarm: survey in progress • GTP-U Path Failure

• Incorrect radio network parameters

• Increased BER detected on the optical connection to Radio Module • Internal MTU configuration failure

• Invalid configuration file

• License missing for feature $feature on interface $if • Link OAM critical link event $E on unit $U, interface $F • Link OAM link lost on unit $U, interface $F

• Link OAM loopback inserted on unit $U, interface $F by $P peer • LOF on unit $U, interface $IF

• LOMF on slot $U, interface $IF

• LOS on unit $U, [Ethernet] interface $IF • Loss of primary Opt IF

• Low noise amplifier failure

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14 Id:0900d80580a3014f DN0980455 • Missing or non-compliant SFP module on unit $U, interface $I

• Missing RNW parameter • Missing RP3-01 link • Module Clock faulty

• No connection to Flexi transport submodule • No connection to unit

• Not able to synchronize baseband bus with <x> • NTP server is not accessible

• OIC MCU Buffer Full • Optical Interface faulty • Oven oscillator clock missing • Oven oscillator heating failure • Oven oscillator Missing Pulse • Parallel RP3-01 link length mismatch • Pipe dangerously overheating

• SyncE Quality Level Degraded on unit $UID, interface $IF • POST test failed

• Power level not supported for cells using the same radio module • Power on #smodLogicalId #pwrLineId line switched off remotely by user • PPS reference clock missing in startup

• Radio resources switched off • RDI on unit $U, interface $IF • Receiving failure in Optical Interface • RF BB bus configuration error

• RF BB bus connection transmission error • RF loss of secondary optical interface • RF Module blocked

• RF Module configuring failed • RF Module critical file not found • RF Module filter input power missing • RF Module gain adjusting failure • RF Module out of order

• RF Module power output faulty • RNW parameter mismatch

• Routing misconfiguration for application $a • RP3-01 link conflict

• RS485 IUANT port failure • RX out of order

• S1 interface recovery failure • S1 interface setup failure • S1 SCTP path failure • SRAM operation failure

• SRIO chain configuration was rejected

• SyncE SSM Timed Out on unit $UID, interface $IF • SW corrupted

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DN0980455 Id:0900d80580a3014f 15 • Synchronization lost

• System information broadcast parameters overflow • System Module failure

• Temperature alarm

• Temperature too low (heating ongoing) • Toggling: <Fault name>

• Transport layer connection failure in S1 interface • Transport layer connection failure in X2 interface • Transport module missing: $unit

• TWAMP PLR Threshold Crossed • TWAMP RTT Threshold Crossed • TX failure in MIMO

• TX out of order

• Unit (module) dangerously overheating • Unit blocked

• Unit initialization failure

• Unit not supported by current BTS SW version • Unit SW download failed

• Unit temperature is high

• Vendor BTS certificate due to expire • VSWR major alarm

• VSWR minor alarm

• X2 interface recovery failure

Removed faults:

• Antenna link is down

• Automatic BTS Operator Certificate retrieval unsuccessful • BB bus message collision error

• BTS SW download or activation failed • Firmware SW mismatch

• GPS Receiver alarm: control interface not available • GPS Receiver alarm: not tracking satellites

• High memory consumption • Incoherency with RF Modules

• Invalid frequency channel for the BTS HW • Post test failed

• PPS reference missing • Unit synchronization failed • Unknown product code

• X2 neighbor cell configuration inconsistency

Changes between issues 04B (2013-01-23, RL40) and 04C (2013-04-22, RL40) New faults:

• High memory consumption • Loss of primary Opt IF

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16 Id:0900d80580a3014f DN0980455 • File System access failed

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DN0980455 Id:0900d805809667b0 17

1 Overview of Flexi Multiradio BTS LTE faults

This document describes fault and alarm handling of the Flexi Multiradio Base Station LTE. The base station software uses these faults and alarms as a basis for internal diag-nosis and fault reporting to the Operations Support System (OSS) and BTS Site Manager.

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2 Flexi Multiradio BTS LTE fault and alarm

handling

Base station (BTS) alarm handling is based on unit or module state information. It prevents the sending of unnecessary alarms by checking and updating unit states. Fault messages come either from hardware devices or software components. The faults are system or hardware specific. The Fault Diagnosis System creates upper network alarms, which are based on an analysis of the faults, and sends them to the BTS Site Manager.

In addition NetAct is used for handling the BTS alarms.

The BTS is able to maintain alarm handling after it has been commissioned and is in a configured state. During the start-up, the BTS waits for the real-time clock from the Network Time Protocol (NTP) server, and the fault diagnosis starts after the time has been set or a time-out has been detected. If the BTS is unable to set the time using the NTP server, the default time (1.1.2004) will be used.

Flexi Multiradio BTS LTE transmission alarms

In Flexi Multiradio BTS LTE, transmission alarms are reported as Base station transmis-sion alarms (7665) towards OMS or NetAct. In Flexi Multiradio BTS LTE, transmistransmis-sion equipment uses the base station interface. Therefore, retrieval of the alarm information will be mapped either in the OMS or in NetAct to distinguish between the alarms by using the fault ID.

Instructions for solving problems

When starting to solve a problem, first refer to the instructions given in the individual alarm descriptions.

Verify the configuration of a BTS by checking the commissioning, cabling and correct installation of the modules at the BTS. Make sure the environment does not cause the fault.

If an active alarm is a 'Start' alarm, a unit block/unblock (if supported by the unit) or a site reset is required to cancel it. If the site reset or unit block/unblock does not help, replace the faulty unit or module. See the fields 'Fault source' and 'Instructions' in the corresponding alarm description.

Blocking and unblocking

The 'Cancel' alarms are always sent to hosts (LTE BTS Site Manager). When the unit or cell is in a blocked state, the 'Start' alarms are only sent to LTE BTS Site Manager. When a unit or cell is unblocked, all the active alarms related to the unblocked unit, module, or cell are automatically sent to the hosts.

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DN0980455 Id:0900d80580a30734 19

3 BTS fault table

Fault name: The name of the fault.

Used in products: The name of the product in question.

Detecting unit: The unit that detects the fault.

Source: The equipment suspected to be faulty (sub-unit in parentheses).

Note that sometimes the actual source of the fault is different than the one that detects the fault.

Meaning: A description of the fault situation.

State: The options are:

Event (Transient or Distur) • Notification type fault

• 'Event' fault is not cancelled, because it is never active • No recovery actions

• Event type fault is shown in the BTS Site Manager as 'Transient' Start

• A fault situation

• The fault is not automatically cleared (without manual operation and maintenance work), even though the problem has been solved, but requires at least block-ing/unblocking the unit or site reset.

• Recovery actions depend on the reported severity Start/Cancel

• Faults can be in a start or cancel state

• The fault is automatically cleared when the problem has been solved

Unit status: The options are:

Out of order The unit does not work

Degraded The main functions of the unit work, but not all

Working All functions are working, but some trouble has been notified

Info Status change information

Unit status attributes:

Used when there is more than one unit status possible. In case multiple unit status options are possible, unit status depends on the fault source.

Effect: A description of how this fault affects the operations of this unit, and how it affects the operations of other units. The following questions are considered:

Does the status of the unit or its sub-units have any effect on the interpretation of the fault?

Does the fault have an effect on other active faults? Table 1 Description of the fields in the fault table

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Reported alarms: 7650 BASE STATION FAULTY • Start, disables all cells • Cancel, causes a site reset

• No new 7651, 7653 or 7654 alarms are reported when 7650 is active 7651 BASE STATION OPERATION DEGRADED

• There is no limit to how many 7651 alarms can be active at the same time 7652 BASE STATION NOTIFICATION

• There is no limit to how many 7652 alarms can be active at the same time 7653 CELL FAULTY

• Start, the affected cell state is set disabled • Cancel, the affected cell state is set enabled 7654 CELL OPERATION DEGRADED

• There is no limit to how many 7654 alarms can be active at the same time 7655 CELL NOTIFICATION

• There is no limit to how many 7655 alarms can be active at the same time 7656 BASE STATION CONNECTIVITY LOST

7657 BASE STATION CONNECTIVITY DEGRADED 7665 BASE STATION TRANSMISSION ALARM

• In case of faulty transmission equipment or transmission software, this alarm is reported towards the OMS or NetAct.

• Transmission alarms do not have dependencies to other BTS alarms.

LED display: The colour of the LED representing the fault level of the unit. The options are:

Stable red Major alarm

Blinking red Minor alarm

Stable yellow Unit in standby state or unit blocking

Blinking yellow Unit in self-heating state or software downloading Stable green Unit on and working

Alternating red and green MHA faulty

Instructions: Describes the actions required to clear the fault. Table 1 Description of the fields in the fault table (Cont.)

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DN0980455 Id:0900d80580a30151 21

4 Flexi Multiradio BTS LTE faults

4.1 # autonomous reset as recovery action

Fault ID and name 52: EFaultId_UnitAutonomousResetAl

Used in products FlexiBTS, LTE

Detecting unit FCM/FCT

Source FCM/FCT, FR, FSP

Meaning The BTS tries to correct a fault situation by performing a recovery reset to a unit, the site or the BTS. In case of RF module reset in RF chaining configura-tion BTS resets also all RF modules that are further in chain.

State Transient

Unit status Working

Unit status attributes

Effect The BTS is operational.

Reported alarms 7652 BASE STATION NOTIFICATION

LED display Stable green

Instructions Check the fault history and other active faults of the unit.

Note! This fault does not require any (special) actions. Related faults

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22 Id:0900d80580a30045 DN0980455

4.2 $Protocol Timing source lost [on unit $U] [, interface $IF]

Fault ID and name 61059: FTM_TIMING_SOURCE_LOS

Used in products LTE

Detecting unit FTLB, FTIB, FSM, FTIF

Source STPG

Meaning One of the synchronisation sources in the configured priority list is unavailable. This can be the primary or the secondary clock source. In the alarm: Protocol can be PDH, Timing over Packet (ToP) and Synchronuous ethernet. Unit Number is optional: -For PDH and Synchronous Ethernet, Unit number is 0 or 1. -It is not present for Timing Over Packet(TOP). The interface value is optional: - For PDH the value range depends on the hardware unit type: 1..16 - For Synchonuous Ethernet the value range = 1..3 - It is not present for Timing over Packet.

State Start / Cancel

Unit status Minor

Effect The BTS may have to use a synchronization interface that has a lower clock quality: if the primary clock source has been lost, the BTS switches automati-cally to the secondary clock source. If both the primary and the secondary clock sources are lost, the BTS switches to the internal clock.

Reported alarms 7665 BASE STATION TRANSMISSION ALARM

LED display Stable Green

Instructions Use BTS Site Manager to check which interfaces have been configured as synchronization sources.

For all interfaces, do as follows:

1. Check that the cables are connected to the correct connectors. 2. Check whether the interface at the far end is switched on.

3. Check whether there are active alarms at the far end. If there are, follow the instructions on handling those alarms.

4. To verify that the hardware of the interface unit works correctly, connect a loop cable and check whether the alarm disappears.

Monitor the received clock quality. Related faults

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DN0980455 Id:0900d80580a30034 23

4.3 10b8b coding error in optical interface device <opt

link/RP3>

Fault ID and name 2004: EFaultId_OIC_LVDSRecAl

Detecting unit FCM, FCT

Source OptIF

Meaning The fibre cable has an interference; the data becomes faulty. A physical con-nection failure between the optical interface and the summing function (caused by bad circuit joints, for example).

Unit status Degraded

Effect The cell operation is degraded. The optical interface loses its synchronization if the amount of errors exceeds the defined limit.

Reported alarms 7654 CELL OPERATION DEGRADED LED display Blinking red(optical interfaces)

Instructions 1. Reset the RF Module behind the faulty optical interface by blocking/unblock-ing it.

2. If that does not clear the fault situation, replace the RF Module that causes the alarm.

3. Reset the System Module.

4. If the System Module is the only source causing the alarm, or actions men-tioned above do not clear the fault situation, replace the System Module that causes the alarm.

Related faults Failure in optical RP3 interface

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24 Id:0900d80580a300ec DN0980455

4.4 2M external reference missing

Fault ID and name 1899: EFaultId_2MExtRefMissAl Used in products FlexiBTS, LTE

Source FCM/FCT

Meaning The reference clock monitoring has detected a loss of 2.048MHz signal received from an external reference source, connected to Sync In interface of the System Module.

Effect If other references are available, the synchronization reference source changes to another source. Tuning then follows this new reference. If other ref-erences are not available, the BTS master clock (OCXO) tuning is halted and the BTS synchronization drops to holdover mode.

Reported alarms 7651 BASE STATION OPERATION DEGRADED 7652 BASE STATION NOTIFICATION

LED display Blinking red

Instructions Note! Perform the steps below in the listed order until the alarm disappears.

1. Check the cabling (connected to Sync In interface).

2. Check if the 2.048MHz reference source is working normally and the 2.048MHz signal is available.

3. Replace the alarming module. Related faults BTS reference clock missing

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DN0980455 Id:0900d80580a300cd 25

4.5 3GPP/AISG communication administratively disabled

Fault ID and name 4142: EFaultId_Communication3gppAdministrativelyDisabledAl

Used in products FlexiBTS, LTE

Source ALD

Meaning HDLC link is disabled for reporting Antenna Line or IUANT port.

Unit status Out of order

Effect HDLC link will be disabled on reporting Antenna Line or IUANT port. Reported alarms 7652 BASE STATION NOTIFICATION

7654 CELL OPERATION DEGRADED

LED display STABLE GREEN

Instructions To revert change,the Communication3gppEnabled parameter should be enabled for reporting Antenna Line.

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4.6 [User defined]

Fault ID and name 1400: EFaultId_ExtAl0 1401: EFaultId_ExtAl1 1402: EFaultId_ExtAl2 1403: EFaultId_ExtAl3 1404: EFaultId_ExtAl4 1405: EFaultId_ExtAl5 1406: EFaultId_ExtAl6 1407: EFaultId_ExtAl7 1408: EFaultId_ExtAl8 1409: EFaultId_ExtAl9 1410: EFaultId_ExtAl10 1411: EFaultId_ExtAl11 1412: EFaultId_ExtAl12 1413: EFaultId_ExtAl13 1414: EFaultId_ExtAl14 1415: EFaultId_ExtAl15 1416: EFaultId_ExtAl16 1417: EFaultId_ExtAl17 1418: EFaultId_ExtAl18 1419: EFaultId_ExtAl19 1420: EFaultId_ExtAl20 1421: EFaultId_ExtAl21 1422: EFaultId_ExtAl22 1423: EFaultId_ExtAl23 1424: EFaultId_ExtAl24 1425: EFaultId_ExtAl25 Used in products FlexiBTS, LTE

Source FCM, FCT

Meaning High or low voltage on the external alarm line. The user specifies the fault text during commissioning.

Unit status Working

Effect No actual effect to BTS functionality. This is user-specific. Reported alarms

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DN0980455 Id:0900d80580a3002e 27

LED display N/A

Instructions [User defined] Related faults

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4.7 Address mismatch in summing

Fault ID and name 2019: EFaultId_Muksu_SsubMmAl

Source FCM, FCT, FSP

Meaning There is a baseband bus address mismatch in the summing. There are two possible causes: 1. A configuration error (two different baseband units function-ing) - after an acknowledgement the fault returns. 2. Data corruption on the bus - appears once when unsynchronized data is sent by the baseband.

Effect RP3 traffic from the baseband is malfunctioning. The System Module operation is degraded.

Reported alarms 7651 BASE STATION OPERATION DEGRADED

Instructions Check the antenna mapping to the local cells in the commissioning file. Related faults Baseband Bus failure

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DN0980455 Id:0900d80580a30040 29

4.8 AIS on unit $U, interface $IF

Fault ID and name 61151: FTM_AIS

Source PPTT

Meaning Alarm indication signal is received. This signal is generated by an intermediate PDH device in the forward direction because it detects a problem in its receive signal. All other transmission alarms related to this signal are suppressed. Probable cause: There is a transmission problem somewhere in the intermedi-ate network and AIS is sent instead of user traffic.

Unit status Major

Effect Possible impact on the connections over the interface in question: - no calls are possible - loss of remote management access to other network elements in the RAN

Instructions Check the intermediate transmission network for alarms indicating the root cause and follow the instructions for handling these alarms.

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30 Id:0900d80580a30089 DN0980455

4.9 Antenna Carrier configuration failure

Fault ID and name 6259: EFaultId_AntennaCarrierMessageFailed

Source TX1-n/RX1-n

Meaning Antenna carrier resources were not successfully set up during cell setup or cell deletion procedure because of failure of RX or TX resource. Affected cell might be not operational.

State Start

Effect Affected cell might be not fully operational. Reported alarms 7653 CELL FAULTY

LED display N/A

Instructions Perform the steps below in the listed order until the BTS fault disappears. 1.Check cables towards Radio Module

2.Reset Radio Module 3.Remove faulty unit Related faults RF Module failure

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DN0980455 Id:0900d80580a30055 31

4.10 Antenna Line Device failure

Fault ID and name 3100: EFaultId_AntennaLineFailure

Detecting unit FSM, Antenna Line Device itself

Source FR, MHA, TILT, EFIL

Meaning The System Module or the device itself has detected an abnormal operation or a failure in the antenna line device.

Unit status N/A

Effect Depending on the reported alarms, the fault situation might have no impact on the operation (BASE STATION or CELL NOTIFICATION), the cell capacity might have decreased (CELL OPERATION DEGRADED), or the cell might not be operational at all (CELL FAULTY).

Reported alarms 7652 BASE STATION NOTIFICATION 7653 CELL FAULTY

7654 CELL OPERATION DEGRADED 7655 CELL NOTIFICATION

LED display N/A

Instructions Note: Perform the steps below in the listed order until the BTS fault disappears.

1. Check the antenna line and antenna line devices. Make sure that the antenna line connectors are in the right torque.

2. Reset the alarming RF module by blocking/unblocking it.

3. Replace the faulty parts and/or devices along the antenna line.

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32 Id:0900d80580a30055 DN0980455 Related faults No connection to unit

10: EFaultId_NoConnectionToUnitAl

Antenna line device HW failure 1847: EFaultId_HardwareErrorAl

Communication failure

1806: EFaultId_CommunicationFailureAl

Antenna Line Device Operation Failure 1871: EFaultId_BusyAl

1872: EFaultId_FormatErrorAl

1873: EFaultId_UnsupportedProcedureAl 1874: EFaultId_OutOfRangeAl

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DN0980455 Id:0900d80580a30014 33

4.11 Antenna line device HW failure

Fault ID and name 1847: EFaultId_HardwareErrorAl Used in products FlexiBTS, LTE

Detecting unit FR, TILT

Source RX, TX, TILT, MHA, EFIL

Meaning A hardware failure detected by an antenna line device. Usually this is a perma-nent fault (the hardware is broken).

Effect The antenna line device is not working properly. The cell operation is degraded. Reported alarms 7652 BASE STATION NOTIFICATION

LED display Stable Green (7652) Alternating Red and Green (7654)

Instructions 1. Block/unblock the Radio module to give a power-off reset to the antenna line devices.

2. If that does not help, replace the antenna line device. Related faults Antenna Line Device failure

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34 Id:0900d80580a300e9 DN0980455

4.12 Antenna line device missing software

Fault ID and name 1848: EFaultId_WorkingSoftwareMissingAl Used in products FlexiBTS, LTE

Detecting unit MHA, TILT

Source MHA, TILT

Meaning The unit is in Download Mode State.

Effect The device is out of use.

Reported alarms 7652 BASE STATION NOTIFICATION 7654 CELL OPERATION DEGRADED

LED display N/A

Instructions 1. Replace the antenna line device. Related faults

(35)

DN0980455 Id:0900d80580a3003d 35

4.13 Antenna Line Device Operation Failure

Fault ID and name 1871: EFaultId_BusyAl

1872: EFaultId_FormatErrorAl

1873: EFaultId_UnsupportedProcedureAl 1874: EFaultId_OutOfRangeAl

Detecting unit FSM

Source Flexi Filter, FA, AISG MHA, TILT

Meaning The device is not working properly, the configuration is not valid, or a given parameter is incorrect.

Effect Some antenna line device functions may not work properly. Reported alarms 7652 BASE STATION NOTIFICATION

7655 CELL NOTIFICATION

LED display Blinking red (Filter), Stable green (other)

Instructions 1. Check the functionality of the antenna line device.

2. Check the compatibility between the antenna line device and the BTS.

3. Check that the given parameters are in the valid range. Related faults Antenna Line Device failure

(36)

36 Id:0900d80580a3000c DN0980455

4.14 Antenna line failure

Fault ID and name 1836: EFaultId_ALOvercurrentAl

Detecting unit Flexi Filter, FR

Source Antenna line

Meaning Radio Module (60W RRH) or Filter (all others) has detected overcurrent on the antenna line. The antenna line might be damaged (short circuit) or some antenna line device is causing overload. All antenna line devices powered by the antenna line are out of order.

Effect The antenna line is not operating correctly. The cell capacity decreases. Reported alarms 7654 CELL OPERATION DEGRADED

LED display Alternating red and green (RF working, Antenna Line faulty)

Instructions 1. Check the antenna line and antenna line devices. Fix or replace the faulty parts/devices.

2. Alarm is cancelled only at RF Module reset or BTS reset. Related faults

(37)

DN0980455 Id:0900d80580a300b8 37

4.15 Antenna line faulty

Fault ID and name 4045: EFaultId_AntennaLineFaultyAl Used in products FlexiBTS, LTE

Detecting unit FR

Source Antenna line

Meaning An alarm message has been received from the antenna line. The antenna line is faulty.

Effect The antenna line is not operating correctly. The cell is disabled. Reported alarms 7653 CELL FAULTY

7654 CELL OPERATION DEGRADED LED display Periodic red and green

Instructions 1. Check the antenna line and antenna line device that causes the alarm. 2. Fix or replace the faulty parts/devices.

Related faults

(38)

38 Id:0900d80580a30085 DN0980455

4.16 Antenna line operation degraded

Fault ID and name 4046: EFaultId_AntennaLineDegradedAl

Detecting unit FR

Source Antenna Line

Meaning An alarm message has been received from the antenna line device. The antenna line operation is degraded.

Effect The antenna line is not operating correctly. The cell capacity decreases. Reported alarms 7654 CELL OPERATION DEGRADED

LED display Periodic red and green (RF working, Antenna Line degraded)

Instructions 1. Check the antenna line and antenna line device that causes the alarm. 2. Fix or replace the faulty parts/devices.

(39)

DN0980455 Id:0900d80580a300dd 39

4.17 Antenna line switched off

Fault ID and name 1957: EFaultId_AntennaLineSwitchedOffAl Used in products FlexiBTS, LTE

Detecting unit FR

Source Antenna line

Meaning Antenna line has been disabled to protect HW, that is because of high reflection conditions.

State Start

Effect The cell is disabled. Downlink signal transmission on the given antenna line is disabled and corresponding FR transmitter is unusable, hence overall FR state is affected.

Reported alarms 7653 CELL FAULTY

LED display Stable red (all antenna lines of the RF module are faulty); Blinking red (not all antenna lines of the RF module are faulty)

Instructions 1. Check the antenna cables, connectors, antenna and possible antenna line devices.

2. Check the antenna line (TX-cable-antenna) impedance matching. Related faults

(40)

40 Id:0900d80580a30058 DN0980455

4.18 Antenna link is down

Fault ID and name 476: EFaultId_Rp3BusError Used in products FlexiBTS, LTE

Detecting unit FSPC

Source FSP, FSM

Meaning Antenna (RP3) link is down: transmitter or receiver drops from synchronization.

State Start

Effect BTS is not operational or the capacity is degraded. Reported alarms 7650 BASE STATION FAULTY

7651 BASE STATION OPERATION DEGRADED LED display Stable red (7650), Blinking red (7651)

Instructions 1. If the alarming module is the System Module (FSM1), restart BTS. 2. If that does not help, replace the alarming FSM.

Related faults Failure in optical RP3 interface

3030: EFaultId_FailureInOptical_Rp3Interface

Failure in replaceable baseband unit 3003: EFaultId_FbiaFailureAl

(41)

DN0980455 Id:0900d80580a300a1 41

4.19 Auto-negotiation mismatch, on unit $U, Ethernet interface

$IF

Fault ID and name 61607: AUTO NEGO MIS MATCH

Detecting unit FTIB, FTFB, FTLB

Source ETHLK

Meaning This alarm indicates that there is a mismatch between BTS configuration and auto-negotiation result.

Unit status Major

Effect If the alarm is active, then potentially there is a synchronization loop Reported alarms 7665 BASE STATION TRANSMISSION ALARM

LED display None

Instructions Try with local management or site support equipment. Related faults

(42)

42 Id:0900d80580a30064 DN0980455

4.20 Automatic BTS Operator Certificate retrieval unsuccessful

Fault ID and name 61510: NO_CERTIFICATE

Source CERTH

Meaning A requested certificate could not be retrieved from the certificate authority (CA). A requested certificate could not be renewed from the certificate authority (CA). A requested certificate could not be retrieved as the number of certificates received from repository server (RA) or certificate authority (CA) are more than expected.

Unit status Major

Effect The requested service is not available.

Instructions Provide the certificate. Related faults

(43)

DN0980455 Id:0900d80580a300e4 43

4.21 Automatic cell recovery not possible

Fault ID and name 6277: EFaultId_AutomaticCellRecoveryNotPossible Used in products FlexiBTS, LTE

Detecting unit FCT

Source LCR

Meaning Base station executed baseband board (FSP) recovery activities. All baseband boards are available again but not all cells could be restored. To restore the functionality of remaining cell, a base station reset is required.

State Start

Effect The cell that cannot be recovered remains unavailable. Reported alarms 7653 CELL FAULTY

LED display None

Instructions Reset (block/unblock) the BTS in order to recover the faulty cell. Related faults

(44)

44 Id:0900d80580a300e7 DN0980455

4.22 Base Station configuration alignment lost alarm

Fault ID and name 4171: EFaultId_BaseStationConfigurationAlignmentLostAl

Source FCM (FSMr2), FCT (FSMr3)

Meaning The configuration data alignment between BTS and NetAct is lost. No Ack or any nackReason from OMS for Configuration Change Notifications (CCN) or buffered CCNs is lost because too long BTS O&M interface connection break.

Unit status Working

Unit status attributes Working: There is only misalingment in NetAct database and BTS is working normally.

Effect The BTS continues working normally with all cells. Reported alarms 7652 BASE STATION NOTIFICATION

LED display N/A

Instructions Upload BTS configuration from NetAct. Related faults

(45)

DN0980455 Id:0900d80580a30015 45

4.23 Baseband bus configuration of <x> was rejected

Fault ID and name 1811: EFaultId_BbBus_ConfFailedAl Used in products FlexiBTS, LTE

Detecting unit FCM/FCT, FSP

Source FSM/FCT, FSP, OptIF

Meaning The baseband bus related configuration of <x> was rejected by the HW SW, DSP or RF SW.

State Start

Effect This fault prevents the BTS from functioning. Depending on <x>, some pro-cessing resources, some cells, or the whole BTS are out of order.

Reported alarms 7650 BASE STATION FAULTY

7651 BASE STATION OPERATION DEGRADED 7653 CELL FAULTY

7654 CELL OPERATION DEGRADED LED display Stable red ( 7650); Blinking Red (7651) Instructions Replace the alarming module.

Related faults Baseband bus failure

(46)

46 Id:0900d80580a3004d DN0980455

4.24 Baseband bus failure

Fault ID and name 3020: EFaultId_BaseBandBusFailure Used in products FlexiBTS, LTE

Detecting unit FSM, FR

Source FSM, FR

Meaning The FlexiBTS has detected an abnormal operation or a failure in the BTS internal baseband bus. The failure cannot be attributed to a specific module but there are several possible fault sources.

Unit status N/A

Effect Depending on the reported alarms, the fault situation might have no impact on the operation (BASE STATION or CELL NOTIFICATION), the BTS capacity might have decreased (BASE STATION or CELL OPERATION DEGRADED, or CELL FAULTY), or the BTS might not be operational at all (BASE STATION FAULTY).

7651 BASE STATION OPERATION DEGRADED 7652 BASE STATION NOTIFICATION

7653 CELL FAULTY

7654 CELL OPERATION DEGRADED 7655 CELL NOTIFICATION

LED display N/A

Instructions Note: Perform the steps below in the listed order until the BTS fault disappears.

1. Check the other active BTS faults and act accordingly.

2. Check the cables between the System Module and RF Module.

3. Reset the RF Module and/or System Module, depending on the alarm source:

a. Reset the RF Module by blocking/unblocking it. b. Reset the System Module by blocking/unblocking it.

4. Replace the alarming RF Module.

5. If the System Module is the source or replacing the RF Module does not clear the fault situation, replace the alarming System Module.

(47)

DN0980455 Id:0900d80580a3004d 47 Related faults Baseband bus configuration of <x> was rejected

1811: EFaultId_BbBus_ConfFailedAl

Not able to synchronize baseband bus with <x> 1815: EFaultId_BbBus_SyncFailedAl

RF BB Bus Synchronization Error 1904: EFaultId_FrRfBbBusSynchError

RF BB Bus Configuration Error

1905: EFaultId_FrRfBbBusConfigError

RF BB Bus Connection Transmission Error 1906: EFaultId_FrRfBbBusConnTransError

BB bus reception error (summing device) 2016: EFaultId_Muksu_SMTimeOffAl

BB bus transmission error

2017: EFaultId_Muksu_SRx10b8bAl

BB bus message collision error 2018: EFaultId_Muksu_StxPortCollAl

Address mismatch in summing 2019: EFaultId_Muksu_SsubMmAl

(48)

48 Id:0900d80580a300c3 DN0980455

4.25 BB bus message in the wrong slot

Fault ID and name 2057: EFaultId_MuksuMsgInWrongSlotAl Used in products FlexiBTS

Source FSP, OptIF

Meaning Baseband bus message multiplexing slot for the message is not possible to be fulfilled.

Effect The BTS operation is degraded because some of the BTS resources are not available.

LED display Stable Red (7650), Blinking Red (7651), Stable Red (7653, 7654) Instructions If RF is the source:

1. Check antenna mapping to the local cells in the commissioning file. 2. Check the cables between the System Module and RF Module. 3. RF block/unblock

4. BTS reset

5. Replace the alarming module.

If FSP is the source:

System Module reset should be performed. Related faults Baseband Bus failure

(49)

DN0980455 Id:0900d80580a300eb 49

4.26 BB bus reception error (summing device)

Fault ID and name 2016: EFaultId_Muksu_SMTimeOffAl

Source FSP, optIF

Meaning The master frame in the received baseband bus frame is not in the correct place related to the internally generated master frame pulse. Either the frame has been set into the wrong place (PI delay) or the data itself is in the wrong place.

Effect The connection to the associated link is lost. The data is partly/completely lost. The worst-case fault effect can expand further from the cell level. This fault can prevent the BTS from operation when the RF Module is needed for the required cell configuration. Fault is visible for the first radio in chain only. Fault 10 is sending for the other FRs, when pooling breaks because of lost sync. Reported alarms 7650 BASE STATION FAULTY

LED display Stable red

Instructions 1. Check the cables between the System Module and the connected module.

2. Replace the unit that causes the alarm (System Module). Related faults Baseband Bus failure

(50)

50 Id:0900d80580a30039 DN0980455

4.27 BB bus transmission error

Fault ID and name 2017: EFaultId_Muksu_SRx10b8bAl

Source FCM, FCT

Meaning A decoding error has been detected in the baseband internal link. The data packet is lost, or the content is corrupted. This situation is also triggered when the links do not synchronize with each other.

Effect Data traffic to the connected RF Module is malfunctioning. BTS operation is faulty.

Instructions 1. Check the cables between the System Module and RF Module.

2. Reset the System Module.

3. Replace the alarming module (System Module). Related faults Baseband Bus failure

(51)

DN0980455 Id:0900d80580a30068 51

4.28 BFD $session down, egress, $sourceIP to $destinationIP

Fault ID and name 61606: BFD DOWN Egress

Source BFD

Meaning The alarm is raised if the alarm is enabled, the BFD state of the session is not AdminDown and the BFD packet from the far end contains the diagnostic code = 'Control Detection Time Expired' AND no ingress alarm is present.

Unit status Major

Effect The communication link between the BTS and the BFD peer is defective. No communication is possible.

Instructions Check the BFD configuration at local end.

(52)

52 Id:0900d80580a30067 DN0980455

4.29 BFD $session down, ingress, $sourceIP to $destinationIP

Fault ID and name 61605: BFD DOWN Ingress

Source BFD

Meaning The alarm is raised if the alarm is enabled, the BFD state for the session is not AdminDown and nevertheless no BFD packet is received at the local end during the detection time.

Unit status Major

Effect The communication link between the BTS and the BTS peer is defective. Or the peer is defective. No communication is possible.

Instructions 1. Check the network between both BFD peers for physical link failures or mis-configurations.

2. Check if the BFD functionality in the peer is switched on and that the config-urations of the BFD peers match.

(53)

DN0980455 Id:0900d80580a30080 53

4.30 BFD group $bfdGrpId down

Fault ID and name 61022: BFD DOWN

Source BFDGRP

Meaning The alarm is raised if the BFD service is not available anymore on the BTS for all BFD sessions belonging to that BFD group.

Unit status Critical

Effect The communication link between the BTS and the BFD peer is defective. No communication is possible.

Instructions 1) Check if the far end has BFD switched on.

2) Check cabling and network connections to the far end. Related faults BFD Session down in ingress direction for session $S

61605: BFD DOWN Ingress

BFD Session down in egress direction for session $S 61606: BFD DOWN Egress

(54)

54 Id:0900d80580a300b2 DN0980455

4.31 Boot configuration inconsistency detected

Fault ID and name 4102: EFaultId_BootConfigurationInconsistencyAl Used in products FlexiBTS, LTE

Detecting unit (FSMr2): FCM, (FSMr3): FCT

Source FSMr2: FCM, FSP MCU FSMr3: FCT

Meaning During SW update it was detected that configurations of active and passive SW in HW unit are same. Active and passive SW configuration are compared: - before SW download - during SW activation before active and passive SW switch - during start-up

State Start

Effect Newly downloaded SW will overwrite active SW. Therefore, SW download and activation are not allowed. Currently active SW is still running.

7651 BASE STATION OPERATION DEGRADED LED display stable red (7650) , blinking red (7651)

Instructions Replace the faulty unit. Related faults

(55)

DN0980455 Id:0900d80580a300e0 55

4.32 BTS blocked

Fault ID and name 50: EFaultId_BTSBlockedAl Used in products FlexiBTS, LTE

Source FCM (FSMr2), FCT (FSMr3)

Meaning The BTS is blocked with BTS Site Manager. The purpose is to avoid fault indi-cations that might be raised during a BTS maintenance task.

State Start

Unit status Working

Effect The BTS does not send faults to the network management system (NMS) when the BTS is blocked. The fault cancellations are sent to the NMS. All cells are disabled.

Instructions To cancel the fault, unblock the BTS. Unblocking the BTS causes a Site Reset (FSMr3) or BTS Reset (FSMr2).

(56)

56 Id:0900d80580a30047 DN0980455

4.33 BTS config error (Not enough HW for LCR)

Fault ID and name 1868: EFaultId_NotEnoughHwForLcrAl

Detecting unit FCM

Source LCR

Meaning RF Module cannot serve all cells commissioned to the RF module. Or Not enough FSP resources for commissioned cells during BTS startup phase.

Effect The BTS capacity drops.

Reported alarms 7653 CELL FAULTY

Instructions RF module:

Replace the single or dual PA RF module with a triple PA RF module. Alternatively, recommission the BTS with fewer cells.

FSP:

1.Block & unblock the system module

2.If that does not help, replace the system module

Related faults Configuration error: <x>

(57)

DN0980455 Id:0900d80580a300b0 57

4.34 BTS configuration not supported

Fault ID and name 4097: EFaultId_BtsConfNotSupportedAl Used in products FlexiBTS, LTE

Detecting unit FCT

Source FSP

Meaning FSP does not support requested BTS configuration.

State Start

Effect BTS baseband processing power is decreased. If all FSPs are faulty BTS is not operational.

7651 BASE STATION OPERATION DEGRADED LED display Stable red (7650), Blinking red (7651)

Instructions Note! Perform the steps below in the listed order until the fault disappears. 1. Change BTS configuration.

2. Reset BTS.

Related faults Configuration error: <x>

ENodeB Faults

Operating Documentation,

Issue 01

Flexi Multiradio BTS LTE Faults

DN0980455

Issue 05A

Approval Date 2013-09-23

Confidential

f

Important Notice on Product Safety

f

Wichtiger Hinweis zur Produktsicherheit

Table of contents

List of tables

Summary of changes

1 Overview of Flexi Multiradio BTS LTE faults

2 Flexi Multiradio BTS LTE fault and alarm

handling

3 BTS fault table

4 Flexi Multiradio BTS LTE faults

4.1 # autonomous reset as recovery action

4.2 $Protocol Timing source lost [on unit $U] [, interface $IF]

4.3 10b8b coding error in optical interface device <opt

link/RP3>

4.4 2M external reference missing

4.5 3GPP/AISG communication administratively disabled

4.6 [User defined]

4.7 Address mismatch in summing

4.8 AIS on unit $U, interface $IF

4.9 Antenna Carrier configuration failure

4.10 Antenna Line Device failure

4.11 Antenna line device HW failure

4.12 Antenna line device missing software

4.13 Antenna Line Device Operation Failure

4.14 Antenna line failure

4.15 Antenna line faulty

4.16 Antenna line operation degraded

4.17 Antenna line switched off

4.18 Antenna link is down

4.19 Auto-negotiation mismatch, on unit $U, Ethernet interface

$IF

4.20 Automatic BTS Operator Certificate retrieval unsuccessful

4.21 Automatic cell recovery not possible

4.22 Base Station configuration alignment lost alarm

4.23 Baseband bus configuration of <x> was rejected

4.24 Baseband bus failure

4.25 BB bus message in the wrong slot

4.26 BB bus reception error (summing device)

4.27 BB bus transmission error

4.28 BFD $session down, egress, $sourceIP to $destinationIP

4.29 BFD $session down, ingress, $sourceIP to $destinationIP

4.30 BFD group $bfdGrpId down

4.31 Boot configuration inconsistency detected

4.32 BTS blocked

4.33 BTS config error (Not enough HW for LCR)

4.34 BTS configuration not supported