7653 CELL FAULTY Event type : Quality of service alarm Meaning A critical fault (or faults) has occurred in a unit/module (or units/modules) that belong to the sector indicated in the alarm. Check the reason for the fault from the supplementary text field of the alarm. The effect of the fault on the functioning of the network element depends on the fault description. For more information, see base station fault descriptions in WCDMA RAN and I-HSPA System Libraries. Supplementary information fields 1 rack (cabinet) number 2
shelf number
3
slot
4
type of unit
5
unit number
6
subunit number
For more information, see instructions on Alarm Structure.
Instructions Verify the configuration of a BTS by checking the commissioning, cabling and correct installation of the units/modules at the BTS. Make sure the environment does not cause the fault. Before a unit/module is replaced at the BTS, the site should be reset to recover from any temporary faults which might have caused the malfunctioning of the unit/module. When an active alarm is a 'Start' alarm, a site reset is required to cancel the alarm. If the site reset or module block/unblock does not help, replace the faulty unit/module (see the source of the alarm and instructions fields of the corresponding alarms). Below is the list of BTS fault(s) which might have caused this alarm in BTS WN6.0_EP1 release. In case of earlier SW release and in case you need more detailed fault descriptions refer WCDMA RAN and I-HSPA System Libraries. The BTS fault descriptions are also included in BTS SW release documentation. If that does not help, contact your local Nokia Siemens Networks representative. FAULT NAME MEANING
: AIR fatal alarm : ARIO has detected a Fatal level alarm. Some ARIO alarms can be canceled without a reset but most ARIO alarms require the WOU block/unblock to cancel. INSTRUCTIONS : 1. Check the WOU or WRUs. 2. Use the ARIO Local Management Tool and the Advanced Indoor Radio user documentation to diagnose the cause of the error.
FAULT NAME MEANING
: Antenna Line Device failure : The System Module or the device itself has detected an abnormal operation or a failure in the antenna line device. INSTRUCTIONS : Note: Perform the steps below in the listed order until the alarm 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. 4. Replace the RF Module. FAULT NAME MEANING
: Antenna1 connection fault : The BIAS-T has detected that the reflected TX power from the antenna has increased. The antenna cable between the WAF and MHA is faulty or the antenna is faulty. The BIAS-T may be faulty. INSTRUCTIONS : 1. Check the bias-T and MHA commissioning. 2. Block/unblock the WAF unit (check if the alarm reappears after 5 minutes). 3. Check the antenna line (see Troubleshooting instructions). 4. Check the PITA cable connection (RJ45). a. Check the voltage (see connector pins in Troubleshooting instructions). b. Check the right connection (see User Manual). c. Check by cross connecting RJ45 cables between other sectors. FAULT NAME MEANING
: BB bus reception error (summing device) : 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. INSTRUCTIONS : FlexiBTS: 1. Check the cables between the Master System Module and RF Module/Extension System Module. 2. Replace the unit that causes the fault (Master System Module, Extension System Module, RF Module, FBIA). UltraSite/EUBB: 1. Replace the unit that causes the fault (WSPF, WSMF). FAULT NAME MEANING
: BTS config error (All units in a cell must be of same freq) : A unit with an incompatible frequency type has been detected. All units in the cell must be of the same frequency type. INSTRUCTIONS : Check the unit frequency types in the cell and replace the
incompatible unit with a compatible one. FAULT NAME MEANING
: BTS config error (Not enough HW for LCR) : UltraSite, MetroSite, MetroSite 50, Triple-mode: A dual carrier WTR has been replaced with a single carrier WTR, and it cannot serve both cells commissioned to the WTR. FlexiBTS:
A dual PA RF Module has been replaced with a single PA RF Module, and it cannot serve all cells commissioned to the RF Module. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode: Replace the single carrier WTR with a dual carrier WTR. FlexiBTS: Replace the single PA RF Module with a dual PA RF Module. Alternatively recommission the BTS with fewer cells. FAULT NAME MEANING
: BTS config error (WAF overload, 50W not in dualWPA config) : Two 50 W WPAs are coupled to one WAF, or one 50 W WPA and one 28 W WPA are coupled to one WAF.
Only two 28 W WPAs can be coupled together to one WAF unit. INSTRUCTIONS : Replace the 50 W WPAs with the 28 W WPAs. FAULT NAME MEANING
: BTS config error : A WPAI/WPAJ with combination with INSTRUCTIONS : Replace the WSMA
(WPA / WSMA version conflict in cell) two carriers and a WOC were detected in the a WSMA. with a WSMB.
Or replace the WPAI and WPAJ with a WPAA/WPAB. FAULT NAME MEANING
: BTS config error (WTR used as dual TRX behind WSMA) : A WTR/WSM conflict is detected. The incompatible WTR cannot operate with the WSMA when two TRXs are used. INSTRUCTIONS : Replace the incompatible unit or recommission the BTS (Reconfiguration commissioning) with only one TRX on. FAULT NAME MEANING
: BTS file error : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: The BTS unit properties data is invalid or missing.
FlexiBTS: The BTS module properties data or optical interface FPGA file is invalid or missing. The FSP MCU SW file is invalid or missing. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: 1. Download two different SW packages so that the faulty file is removed from the BTS. 2. Download the SW again. 3. If the fault still exists after 10 minutes, replace the
alarming unit. FlexiBTS: 1. Download two different SW packages so that the faulty file is removed from the BTS. 2. Download the SW again. 3. Replace the System Module. FAULT NAME MEANING
: BTS internal SW management problem : A software update to a unit/module or subassembly has failed, or a corrupted SW file has been detected in the FLASH. INSTRUCTIONS : Note: Perform the steps below in the listed order until the BTS fault indication disappears. FlexiBTS: 1. Check the other active BTS faults. If the ROM disk is corrupted, change the alarming module. 2. 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. 3. Update and activate the SW to the BTS. 4. Check the SW files. 5. Replace the alarming module/unit. UltraSite/EUBB: 1. Check the other active BTS faults. If the ROM disk is corrupted, change the alarming unit. 2. Reset the alarming unit. 3. Update and activate the SW to the BTS. 4. Check the SW files. 5. Replace the alarming unit. FAULT NAME MEANING
: BTS reset required : The BTS detected an Extension Module as a capacity enhancement.
The BTS detected an RF Module that cannot be taken into use without the BTS reset. The RF Module type differs from the previous one. INSTRUCTIONS : Reset (block/unblock) the BTS. FAULT NAME MEANING
: Baseband Bus failure : The BTS has detected an abnormal operation or a failure in the BTS internal baseband bus. The failure cannot be pointed to a specific unit/module but there are several possible fault sources.
INSTRUCTIONS : Note: Perform the steps below in the listed order until the alarm disappears. FlexiBTS: 1. Check the other active BTS alarms and act accordingly. 2. Check the cables between the System Module and RF Module/Extension System 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 Extension System Module by blocking/unblocking it. c. Reset the master System Module. 4. Replace the alarming RF Module/Extension System Module. 5. If the master System Module is the source or replacing the RF Module/Extension System Module does not clear the fault situation, replace the alarming master System Module. UltraSite/EUBB: 1. Check the other active BTS alarms and act accordingly. 2. Reset the alarming unit. 3. Check the cables in backplane. 4. Replace the alarming unit. FAULT NAME MEANING
: Baseband bus configuration of was rejected : The baseband bus related configuration of was rejected by the HW, SW, DSP or LTX. INSTRUCTIONS : Replace the alarming module. FAULT NAME MEANING
: Cell block rejected by RNC/I-HSPA : The cell has been disabled due to BTS internal reasons, for example if the RNC has rejected the normal cell blocking during the Intelligent Shutdown. INSTRUCTIONS : 1. Check the other active alarms. 2. Check the mains power supply. FAULT NAME : Cell blocked MEANING : The user has blocked the cell with BTS Site Manager. INSTRUCTIONS : To cancel the alarm, unblock the cell. FAULT NAME MEANING
: Cell calibration failure : TX power calibration failure: a CPICH setup failure, CPICH release failure, WTR power out of range failure, or general initial calibration failure. INSTRUCTIONS : 1. Check the commissioning (LCR cabling). 2. Block/unblock the alarming unit or the WPA connected to the alarming WTR. If there was an internal failure, the unit needs to be blocked/unblocked to initialize/configure it again.
3. Run the WCDMA BTS loop test with BTS Site Manager to check the WSM cabling. (Note! The loop test cannot be run if the cell is already blocked because of an alarm.) 4. Check the RF and WSM cabling (for example, in the case of an incorrect cabling). 5. If the reported severity is 7653 Cell faulty, replace the WTR, WPA, WSMs or WSP. If the reported severity is 7654 Cell operation degraded (most probably the WPA cannot deliver enough output power), replace the WPA. FAULT NAME MEANING
: Cell power monitoring : The WPA/Radio output power has dropped.
There is a fault in the downlink transmission path. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: 1. Block/unblock the WPA. If there was an internal failure, the unit needs to be blocked/unblocked to get it initialized/configured again. 2. Block/unblock the WTR belonging to the same LCR. 3. Check the RF TX cabling. 4. The fault may be in the WTR or WPA. FlexiBTS: 1. Block/unblock the RF Module. If there was an internal failure or sticking in the unit SW, the module needs to be blocked/unblocked to get it initialized/configured again. 2. Check the RF Module. 3. Replace the alarming module. FAULT NAME MEANING
: Commissioning error: : Some of the commissioning parameters are either missing or faulty, or there is a mismatch between them. INSTRUCTIONS : Note: Perform the steps below in the listed order until the alarm disappears. 1. Check the commissioning parameters with the BTS Site Manager Commissioning Wizard. 2. Load the correct commissioning file to the BTS. FAULT NAME MEANING
: Communication failure : Communication with the application failed. It has not replied to the message that has been sent/resent to it.
FSP: Faraday has not sent a specific mandatory indication message in the start-up during the time limit the message is expected to arrive. INSTRUCTIONS : 1. Check that the unit/module is properly connected. If the unit/module LED does not light up, the unit/module is faulty. Check the alarming unit/module.
2. Check the fault history. FAULT NAME MEANING
: Configuration error: : There is a compatibility problem in the BTS HW/SW versions or the HW/HW configuration. Another possibility is that there is a mismatch between the BTS configuration and the RNC/I-HSPA adapter parameters. INSTRUCTIONS : Note: Perform the steps below in the listed order until the BTS fault indication disappears. 1. Check the installed HW/SW version compatibility and the HW compatibility with the current BTS configuration. 2. Check that the BTS cell parameters from the RNC/I-HSPA adapter match the BTS HW configuration (for example frequency, power). 3. Check the RNC/I-HSPA adapter BTS faults for the alarming local cell (LCR). 4. Recommission the BTS to ensure that all parameters are correctly configured. FAULT NAME MEANING
: Failure in optical RP3 interface : The BTS has detected an abnormal operation or a failure in an optical RP3 interface between two modules. The failure cannot be pointed to a specific module but there are several possible fault sources. INSTRUCTIONS : Note: Perform the steps below in the listed order until the alarm disappears. 1. Check the other active BTS alarms and act accordingly. 2. Check the cables between the System Module and RF Module/Extension System Module. Note that dirty optical connectors may cause the signal level to drop too low. 3. Depending on the alarm source, reset the RF Module, Extension System Module and/or System Module by blocking/unblocking it. 4. Replace the alarming module's Small Form Factor Pluggable (SFP). Check also the SFP in the other end and replace it, if needed. 5. Replace the alarming RF Module/Extension System Module. 6. If the System Module is the only alarming source or replacing the RF Module/Extension System Module does not clear the fault situation, replace the alarming System Module. FAULT NAME MEANING
: Filter unit operation failed : A filter has not been able to tune on an appropriate sub-band properly (tuning failure), or another major failure has been detected by the filter (unit faulty). INSTRUCTIONS : Replace the filter unit. FAULT NAME MEANING
: Frame Clock Missing : The System Module clock reference differs from the RF Module
clock. INSTRUCTIONS : 1. Check the cables between the System Module and RF Module. 2. Block/unblock the RF Module. 3. If that does not help, block/unblock the site. 4. If that does not help, replace the alarming RF Module. FAULT NAME MEANING
: Frame number synchronisation error in optical interface : The timing of the new RP1 synchronization burst deviates from the present RP1 timing maintained in the BTS. INSTRUCTIONS : 1. Reset the System Module that causes the alarm. 2. If resetting of the module does not help, replace the System Module that causes the alarm. FAULT NAME MEANING
: Incoherency in cell configuration : Both sector types (A and B) are configured to the same RF Module in the two-carrier case. INSTRUCTIONS : Recommission the LCRs in a way that only one sector type is used in one RF Module. FAULT NAME : Incoherency in cell configuration MEANING : Too many LCRs are commissioned to one RF Module. INSTRUCTIONS : Recommission the BTS with a correct number of LCRs per RF Module. FAULT NAME MEANING
: Incoherency with RF Modules : Incorrect cell configuration for RF Modules with different frequency. The same cell is configured for two RF Modules which are not at same frequency. INSTRUCTIONS : 1. Check which Radio Modules are for the faulty frequency. 2. Replace the incompatible Radio Module(s). FAULT NAME MEANING
: Incompatible SW version detected : A new unit with an incompatible SW has probably been inserted in the BTS. INSTRUCTIONS : Update compatible SW to the BTS (check the SW versions to see the active SW version, and update the active SW version), unless it is automatically updated by NetAct. Related BTS - AXC interface: check the SW version of the BTS and AXC, and update compatible SW to the AXC or BTS. FAULT NAME MEANING
: Incompatible unit detected : An unsupported unit (for example a WSMA, WTRA, WSPA, WMCM or WTRB) has been detected in the cabinet. INSTRUCTIONS : Replace the unsupported unit with a unit of the correct type. FAULT NAME MEANING
: Invalid carrier in WTR : There was an attempt to set the WTR to a channel not supported by the WTR (on a different frequency band). INSTRUCTIONS : 1. Make sure that correct carrier numbers are in use in the RNC. 2. Commission the BTS with the correct WCDMA carrier values for the WTR.
FAULT NAME : Low noise amplifier failure MEANING : The Filter has detected a malfunction in the LNA unit. INSTRUCTIONS : Replace the alarming Radio module. FAULT NAME : Module Clock Faulty MEANING : The RF Module lost lock to the incoming clock. INSTRUCTIONS : 1. Check the cables between the System Module and RF Module. 2. Block/unblock the RF Module. 3. If that does not help, replace the alarming RF Module. FAULT NAME MEANING
: No WSM resources : There should be two WSM units in the subrack 1. The WSM2 must always be connected when the WSM1 is used. If there is no connection to the WSM2, this fault is generated for the WSM1. INSTRUCTIONS : Insert the WSM2. FAULT NAME MEANING
: No connection to unit : The connection to a unit that belongs to the BTS configuration has been lost. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: 1. Check the fault history, alarming unit and subrack. 2. If SW updates have been done recently, reload the SW. 3. If the WAF or WIC is alarming, try recommissioning the site. 4. Check that the unit is properly connected. If the unit LED does not light up, the unit is faulty. The fault might also be in the WPS unit or backplane. 5. Check the power cables and connectors as well as the I2C bus cables. Cancel alarms: Removing and inserting the WIC, WSM or primary WAM causes a site reset. If both WSCs are removed, inserting the first removed WSC back into the cabinet causes a site reset. If the 7650 BASE STATION FAULTY alarm is issued, reset the site. First try to reset the site with the software. If that does not help, replace the alarming unit. If the WSMF unit is not present (replaced by WSMB)in BTS, alarming WSPFs are not used and should be removed from BTS. WSPFs can be removed because without unit BTS works as UltraSite not as EUBB. FlexiBTS: 1. Check LED does alarming 2. Check
that the module is properly connected. If the module not light up, the module is faulty. Check the module. the fault history.
FAULT NAME : Not able to synchronize baseband bus with MEANING : The baseband bus synchronization towards failed. INSTRUCTIONS : Replace the alarming module. FAULT NAME
: Not enough WAF resources in LCR
MEANING : There are not enough WAF units in a cell. INSTRUCTIONS : UltraSite, MetroSite and Triple-mode: 1. See the section No connection to unit in the troubleshooting instructions. 2. Increase the number of WAF units in the BTS. MetroSite 50: Change the WAF. FAULT NAME MEANING
: Optical Interface faulty : The Small Form Factor Pluggable (SFP) malfunction has occured or the SFP module is not physically present (no electrical connection exists). The SFP is a part of the fibre cable package. INSTRUCTIONS : 1. Check that the SFP is properly connected. 2. Replace the SFP module. FAULT NAME : Post test failed MEANING : An RF Module power-on self-test failed at start-up. INSTRUCTIONS : Replace the alarming RF Module. FAULT NAME MEANING
: R-bus error : UltraSite, MetroSite, MetroSite 50, Triple-mode: The bus between the WSP and WTR does not work. The R-bus errors are probably caused by a faulty WSM or WTR.
FlexiBTS: Error in the FSP or in the connection between the FSP and FCM. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode: 1. If the WSM/WMC also generates an alarm from a WTR unit, check the WTR and WSM cable. 2. If there are no active WSM/WMC alarms, the reason for the alarm is a faulty WSM/WMC or WSP. 3. Run a WCDMA BTS loop test to locate the faulty unit. 4. If the WSP is faulty, block/unblock it. 5. Replace the faulty unit. FlexiBTS: 1. Check the cabling between the System Module and RF Module. 2. Check the active RF Module alarms and act accordingly. 3. Replace the faulty module (System Module). FAULT NAME : RF BB Bus Configuration Error MEANING : The RF Module baseband bus is configured incorrectly. INSTRUCTIONS : 1. Block/unblock the RF Module. 2. If that does not help, replace the alarming RF Module.
FAULT NAME : RF BB Bus Connection Transmission Error MEANING : There is an error in the baseband or optical bus. INSTRUCTIONS : 1. Block/unblock the RF Module. 2. If that does not help, replace the alarming RF Module FAULT NAME MEANING
: RF BB Bus Synchronization Error : The baseband bus between the System Module and RF Module is out of synchronization. INSTRUCTIONS : 1. Check the cables between the System Module and RF Module. 2. Block/unblock the RF Module. 3. If that does not help, block/unblock the site. 4. If that does not help, replace the alarming RF Module. FAULT NAME MEANING
: RF Loss of secondary optical interface : Secondary optical link between the System Module and RF Module is lost. INSTRUCTIONS : 1. Check the cables between the System Module and RF Module. 2. Block/unblock the RF Module. 3. If that does not help, block/unblock the site. 4. If that does not help, replace the alarming RF Module. FAULT NAME : RF Module Filter input power missing MEANING : The RF Module filter has measured too low TX power. INSTRUCTIONS : 1. Block/unblock the RF Module. 2. If that does not help, replace the alarming RF Module. FAULT NAME : RF Module Overheat MEANING : The RF Module temperature is too high. INSTRUCTIONS : 1. Check the fans and ensure that the ambient temperature on the site is acceptable. 2. If that does not help, replace the alarming RF Module. FAULT NAME MEANING
: RF Module Power output faulty : The Power Supply has detected an overvoltage, undervoltage or overcurrent in the RF Module. INSTRUCTIONS : 1. Block/unblock the RF Module. 2. If that does not help, replace the alarming RF Module. FAULT NAME : RF Module blocked MEANING : A shared (Medusa) FR is blocked. INSTRUCTIONS : Unblock the alarming module. FAULT NAME MEANING
: RF Module configuring failed : The RF Module configuration failed because of a HW or SW fault. INSTRUCTIONS : Replace the alarming RF Module. FAULT NAME : RF Module critical file not found MEANING : A critical configuration file is missing from the RF Module. INSTRUCTIONS : Replace the alarming RF Module.
FAULT NAME MEANING
: RF Module failure : The FlexiBTS has detected an abnormal operation or a failure in the internal functionality of the RF Module. INSTRUCTIONS : Note: Perform the steps below in the listed order until the alarm disappears. 1. Check the other active BTS alarms (System Module failure, Baseband Bus failure, Failure in optical RP3 interface and Antenna Line Device failure) and act accordingly. 2. Reset the alarming RF Module by blocking/unblocking it. 3. Check the cables between the System Module and RF Module. 4. If that does not help, replace the faulty RF Module. FAULT NAME MEANING
: RF Module out of order : The RF Module is out of order because of a software or hardware fault. INSTRUCTIONS : 1. Block/unblock the RF Module. 2. If that does not help, replace the alarming RF Module. FAULT NAME : RX out of order MEANING : The RF Module RX RF synthesizer is not locked. INSTRUCTIONS : 1. Block/unblock the RF Module. 2. If that does not help, replace the alarming RF Module. FAULT NAME MEANING
: Radio resources switched off : The radio resources are switched off to prevent possible Radio Module HW failure because of antenna line impedance mismatch. With another than FXCA, FXDA, FXEA, FXSA Radio Modules, switching off means that the I/Q data fed to the Radio Module has zero power because of deactivation of the cell handled by the Radio Module. With FXCA, FXDA, FXEA, FXSA Radio Modules, switching off means that the Power Amplifier within the Radio Module is switched off autonomously by the Radio Module. INSTRUCTIONS : 1. Check the antenna lines: antennas, antenna cables, connector torques and antenna line devices. 2. Check the antenna line (TX-cable-antenna) impedance matching. FAULT NAME MEANING
: Receiving failure in Optical Interface : The incoming optical signal to the Small Form Factor Pluggable (SFP) is missing or too weak, or the fibre cable has been detached.
The connection between the System Module and the RF Module units (LTX, Antenna Filter or Antenna Line Device) is broken. INSTRUCTIONS : 1. Check the status of the module behind the faulty link (Power on, and so on). 2. Check the SFP from both ends (the System Module and the module behind the faulty link). The optical interface LED indicates the faulty SFP. Replace the SFP, if it is faulty. 3. Clean the connectors, test the fibre cable and replace it, if it is faulty.
4. If the previous steps do not help, replace the module behind the faulty link. FAULT NAME
: Synchronization failure in Optical Interface MEANING : The RP3 channel has lost the frame synchronization state that it had achieved. INSTRUCTIONS : Swap the alarming and working links and then check where the alarm is now reported. If the alarming link remains the same, replace the System Module. If the alarming link changes, replace the RF Module behind that link. FAULT NAME : TX out of order MEANING : The RF Module TX path is not usable. INSTRUCTIONS : 1. Block/unblock the RF Module. 2. If that does not help, replace the alarming RF Module. FAULT NAME MEANING
: TX output power measurement fault : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: The WTR or WPA/WMP/WOU output power measurement has failed.
FlexiBTS: The RF Module output power measurement has failed. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: 1. Block/unblock the alarming unit. If there was an internal failure, the unit needs to be blocked/unblocked to get it initialized/configured again. 2. Check the units and the RF cabling between the WPA/WMP/WOU and WTR units. FlexiBTS: 1. Reset the alarming RF Module with the block/unblock function. If there was an internal failure or sticking in the unit SW, the Module needs to be blocked/unblocked to get it initialized/configured again. 2. Check the cables between the System Module and RF Module. 3. If that does not help, replace the faulty RF Module. FAULT NAME MEANING
: Telecom configuration failure : Telecom slave configurations or registrations failure. Unit RNW configuration failure. Telecom RNW reconfiguration failure. Or UltraSite, MetroSite, MetroSite 50, Triple-mode: WSP unit to WAM allocation failure. FlexiBTS: - FSP unit to FCM allocation failure. - Faraday unit to FSP allocation failure.
UltraSite/EUBB: Faraday unit to WSPF allocation failure. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: Block/unblock the alarming unit. If there was an internal failure, the unit needs to be blocked/unblocked to get it initialized/configured again. FlexiBTS: If there was an internal failure, in the case of an FR, the module needs to be blocked/unblocked to get it initialized/configured again. FAULT NAME MEANING
: Temperature alarm : The internal temperature of the RF Module or System Module exceeds the threshold value, or the ambient temperature of the module(s) is outside the specified limits. INSTRUCTIONS : Note: Perform the steps below in the listed order until the BTS fault indication disappears. 1. Check the other BTS faults and act accordingly. 2. Check the ambient temperature of the BTS modules. If the ambient temperature is too high, make sure the airflow to the BTS modules is unobstructed, that is, the BTS modules are not covered with anything. If the ambient temperature is too low, it takes a while for the BTS modules to heat themselves to the threshold value. 3. Reset the alarming module/unit by blocking/unblocking it. 4. Replace the alarming module/unit. FAULT NAME MEANING
: Temperature too low (Heating ongoing) : The temperature inside the RF Module is too low. Heating of module is ongoing. Wait until the alarm is canceled. This may take up to 15 minutes. INSTRUCTIONS : 1. Heating of module is ongoing. Wait until the alarm is canceled. This may take up to 15 minutes. 2. If that does not help, block/unblock the RF Module. 3. If that does not help, replace the alarming RF Module. FAULT NAME : Timeout, commissioned resource not ready MEANING : The faulty unit has not been configured or initialised. INSTRUCTIONS : Recommission the site. FAULT NAME MEANING
: Too many LCGs for HW to support : There is not enough HW capacity to support the commissioned number of Local Cell Groups (LCG). INSTRUCTIONS : Re-commission the BTS with the correct number of LCGs. FAULT NAME : Too many carriers allocated for LPA MEANING : Too many carriers have been allocated to the WPA/WMP. INSTRUCTIONS : Remove the additional carrier in the Reconfiguration commissioning. FAULT NAME
: Unit (module) dangerously overheating
MEANING
: Validated sensor temperature is greater than or equal to the predefined value on unit property file. INSTRUCTIONS : 1. Check the fans and ensure that the ambient temperature on the site is acceptable. 2. If that does not help, replace the alarming RF Module. FAULT NAME MEANING
: Unit SW download failed : Software update to a unit/subunit or module has failed.
UltraSite, MetroSite: The fault can also be caused by disconnected CIF bus cables. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: 1. 2. 3. 4.
Download the BTS SW again. If the alarming unit is WSP then block/unblock the WSP. If the alarming unit is WAM or WPA then reset the BTS. If does not help, replace the alarming unit.
FlexiBTS: 1. Download the BTS SW again. 2. FCM: Reset the BTS. 3. If Step 2 does not help, replace the alarming module. FAULT NAME MEANING
: Unit blocked : A unit is blocked with BTS Site Manager.
The purpose of the fault is to avoid alarms that might be raised during the unit maintenance task. INSTRUCTIONS : To cancel the alarm, unblock the unit/module. FAULT NAME : Unit initialization failure MEANING : A unit/module or an IP address initialization has failed. INSTRUCTIONS : UltraSite, MetroSite, MetroSite 50, Triple-mode, UltraSite/EUBB: 1. Block/unblock the alarming unit. 2. Check if the non-commissioned WAM is the Master WAM. If so, this causes the fault. Check the fault history to know why the WAM switch-over occurred. 3. If the WAM is the fault source, check the RNC IP address in the commissioning file and modify the file if needed. If that does not help, perform a power-off reset. 4. If step 3 does not help, replace the alarming unit. FlexiBTS: 1. Block/unblock the alarming module. If that does not help, replace the alarming module. 2. If the FCM is the fault source, check the RNC IP address in the commissioning file and modify the file if needed. If that does not help, perform a power-off reset. 3. If Step 2 does not help, replace the alarming module.
FAULT NAME MEANING
: Unit not supported by current BTS SW version : An unsupported unit was found in the BTS. Typically this happens when a new unit version is installed and there is an older BTS SW in use that does not support the new unit version. INSTRUCTIONS : Replace the unit or upgrade the BTS SW. FAULT NAME MEANING
: Unknown HW resource : A unit cannot be identified by its product code or by its physical device address (object ID). INSTRUCTIONS : Replace the alarming unit/module. FAULT NAME MEANING
: Unknown product code : A module cannot be identified by its product code but is known by its physical device address (object_ID). INSTRUCTIONS : Replace the alarming module. FAULT NAME MEANING
: VSWR alarm : Radio Module (60W RRH)/the Filter (all others) has detected a VSWR value exceeding the defined level. The antenna line is mismatched or damaged. INSTRUCTIONS : 1. Check the antenna cables, connectors, antenna and possible antenna line devices. 2. Check the antenna line (TX-cable-antenna) impedance matching. FAULT NAME MEANING
: WAF low noise amplifier faulty : One of the two RX pre-amplifiers (one in the main branch and the other in the diversity branch) is faulty. The LED indicates the faulty unit.
MetroSite 50: One, some, or all of the RX pre-amplifiers (max 6) are faulty. The LED indicates the faulty unit(s). INSTRUCTIONS : 1. Block/unblock the WAF unit. This is most likely a HW fault, but blocking/unblocking the unit ensures that before a site visit. 2. If that does not help, replace the alarming unit. FAULT NAME MEANING
: WPA power level changed : The power level of a replaced WPA unit differs from the original WPA unit. INSTRUCTIONS : If the WPA is accidently changed to a different power level type of WPA, replace the WPA unit to the correct power level type of WPA. FAULT NAME MEANING
: WSM RR-Bus error : The signal is transported from the WTR to the WSP via the WSM. This alarm is generated when the WSM/WMC unit detects errors in the incoming RR bus from the WTR unit.
The reason for the failure is probably the WTR or WSM/WMC unit. The unit may have been installed incorrectly or the backplane cabling is faulty. INSTRUCTIONS : 1. Run the WCDMA BTS loop test. 2. Replace the units indicated in the alarm one by one and check whether the problem is cleared.
3. Check the backplane cables and connectors (see Troubleshooting instructions).
