Title: Type: Arial Bold Size：35-47pt Color：Theme of Blue Subtitle: Type：Arial Color：24-28pt Color：White Internal Only▲ ZXSDR NodeB Troubleshooting Applicable to Staff with Skill Certificate Level II or Lower Released by GU Product Support Dept. Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Version Introduction References: 1. 2. Version Date Author Checked by Amendment Record R1.0 2011-03-24 Zhao chenmu *** None Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Course Objectives: To understand the usage of trouble shooting tools To master the trouble shooting flow Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：White Text(2-5 Level) Type：Arial Size：24-18pt Color：White Internal Only▲ Content Troubleshooting Tools Troubleshooting & solution flow Common Trouble examples Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Troubleshooting Tools EOMS (Embedded Operations and Maintenance Subsystem) Display Board Status Double-click the board on the NodeB rack layout; A dialog box will be displayed, listing detailed information including Board info, Board status, and alarm info. detail in online manual. EFMS (Embedded Faults Maintenance Subsystem) Alarm Browse window: displaying fault alarm information detail in online manual. Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：White Text(2-5 Level) Type：Arial Size：24-18pt Color：White Internal Only▲ Content Troubleshooting Tools Troubleshooting & solution flow Common Trouble examples Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Trouble Shooting and Solution Flow Step 1 Find a fault alarm Step 2 Information collection Step 3 Information analysis Step 4 Solution Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Find a Alarm on EOMS Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Find a Alarm on EFMS Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Information Collection These information need to be collected Alarm Code Help to index the detail about the alarm Alarm Name and sub-code Reflects such content as fault cause and fault phenomenon in a simple and straightforward way . Alarm Source Show where the alarm was invoked Alarm severity Four alarm levels indicated in descending order of severity is Critical , Major , Minor , and Warning . Critical = must be handled at once Major = should be handled during working-hours. Minor = to be handled at proper time so as to avoid serious fault. Warning = necessary to be handled so as to avoid more serious fault. Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Information Analysis Double click on the alarm, on the solution page , analysis will be shown as following: 1. Detail Description 2. Possible Causes 3. Impact on system 4. System Actions Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Trouble Solution Double click on the alarm, on the solution page , solution will be shown as below: Handling Suggestions This can also be shown in the AlarmSolutions document by indexing the alarm code. Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：White Text(2-5 Level) Type：Arial Size：24-18pt Color：White Internal Only▲ Content Troubleshooting Tools Troubleshooting & solution flow Common Trouble examples Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Common Trouble Examples 23-Ethernet light and electricity lose(demo & practice) 14-Loss of Signal at Ir interface(demo & practice) 13-Board hardware fault(demo & practice) 1009-Antenna over VSWR alarm(demo & practice) 5-Clock reference source is lost(demo & practice) 7- Clock reference source is degraded 34 – Hardware alarm 516 - SCTP association is interrupted. 1028 – abnormal power 2009 - SNTP time adjustment failure alarm Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ e.g 1: 23-Ethernet light and electricity lose Detail Description This alarm is given when FE port is configured, but network cable is not well connected with its peer end. Possible Causes Net cable failure The opposite net port is faulty. The local net port is faulty. Impact on system Board operation is normal.The net port data transmission is interrupted, and the service is not available. System Actions When this alarm occurs, the system will set the link via the network port to be fault. Handling Suggestions Check the net cable for any failure Check the counterpart net port for any failure. Check the local net port for any failure. Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ e.g 2: 14-Loss of Signal at Ir interface Detail Description Optical signal between BBU and RRU is lost, which will affect system normal running. Possible Causes Failure in the fiber optics, the optical module, or the connection on this level board. The board on the lower level is not properly powered on. Failure in the fiber optics, the optical module on the lower level board. Hardware failure on the lower level board. Impact on system The board connected with the optical port is faulty. Service Impact: The board with the failure works normally, but the board with optical port has failure. The "Loss of Signal at Ir interface" alarm occurred to the FS functionality board during the RRU reset process is an accompanying alarm. The services beard by the system will be interrupted during the reset process. If the alarm occurs to the FS functionality board, all the services of the system will be interrupted. If the alarm occurs to the RTR, the services beard on the lower level RRU will be interrupted. System Actions None. Handling Suggestions Check for the failure in the fiber optics, the optical module, or the connection on this board. Check the power supply to the lower level board. Check for the failure in the fiber optics, the optical module. Check for the possible hardware failure with the lower level RRU. Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ e.g 3: 13-Board hardware fault Detail Description When the board hardware initialization is failed or it cannot work normally due to hardware fault, this alarm is reported. Possible Causes Board hardware fault Impact on system The board is faulty. The board fails to provide bearer service.. System Actions The board status is changed to be fault by the system. Handling Suggestions Reset the board. Replace the board. Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ e.g 4: 1009-Antenna over VSWR alarm Detail Description VSWR at antenna port is > 3.0 Possible Causes Antenna feeder is faulty. Board is faulty. Impact on system Board operation is normal. There is no transmission power output for the RF channel. Service interruption occurs. System Actions None Handling Suggestions Check antenna feeder. Check the VSWR of antenna feeder by level. Check RRU. Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ e.g 5: 5-Clock reference source is lost Detail Description When main control board cannot detect signal input from external reference clock source, it works in free oscillation state. When this happens, the system will report this clock reference source lost alarm. Possible Causes The configured clock reference source does not exist. Failure with the external reference clock or its cable. The board failure. Impact on system Board operation is normal. When E1 connection is used by Iub interface, then periodical slide code might occur to the Iub interface. When FE connection is used by Iub, then there is no System Impact. The impact to the soft handover between Node B base station: over a long period of the alarm, the accuracy of the Node B clock might degenerate and fail to meet the 3GPP requirement and reduces the success rate of soft handover. System Actions None Handling Suggestions Check if an incorrect reference source is configured. Check if the external clock reference is correct. if the board failure then Reset the board or replace the board. Theme1 Theme2 Theme3 Theme4 Title: Type: Arial Bold Size：32pt Color：The theme blue Subtitle: Type：Arial Size：28pt Color：Black Text(2-5 Level) Type：Arial Size：24-18pt Color：Black Internal Only▲ Chapter/Course Review What tools can you use for trouble shooting？ What is the trouble shooting flow？ Internal Only▲