Wireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development Section
ISSUEISSUE
ORI001ORI0013302 CDMA WLL BTS3612 02 CDMA WLL BTS3612 Troubleshooting & Maintenance Troubleshooting & Maintenance
(small capacity)(small capacity)
ORI001ORI0013302 CDMA WLL BTS3612 02 CDMA WLL BTS3612 Troubleshooting & Maintenance Troubleshooting & Maintenance
(small capacity)(small capacity)1.41.4
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Study TargetsStudy Targets
Master the method of handling common
faults
Master the routine maintenance operation
of the BTS3612
After studying this course, you should be able to:
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Course ContentsCourse Contents
Chapter 1 Overview of BTS3612 Operation & Maintenance
Chapter 2 Handling of Common Faults of BTS3612
Chapter 3 Remote Operation & Maintenance System
Chapter 4 Local Operation & Maintenance System
Chapter 5 Contents of Routine Operation & Maintenance
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Chapter 1 Overview of BTS3612 Troubleshooting & MaintenanceChapter 1 Overview of BTS3612 Troubleshooting & Maintenance
Common process of BTS3612 Troubleshooting & maintenance
Common fault location of BTS
BTS3612 operation & maintenance mode
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Process of BTS3612 MaintenanceProcess of BTS3612 Maintenance
Common maintenance process of BTS3612 system:
Obtain system running
information
Judge system running state
Handling
View alarms
View indicators
View traffic statistics
Subscriber complaint
…
View alarms
View indicators
View traffic statistics
Subscriber complaint
…
Alarm analysis
Traffic statistics analysis
Fault judgment
…
Alarm analysis
Traffic statistics analysis
Fault judgment
…
Check cables
Adjust parameters
Reset board
Replace parts
…
Check cables
Adjust parameters
Reset board
Replace parts
…
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Fault LocatingFault Locating
When the running state of the system is abnormal, please consider th
e following factors:
Software fault
Data configuration fault
No matchable versions for loaded program files and configuration dat
a file
Program running error
Hardware fault
Transmission and clock line fault
Board damage (replace the damaged one with a board of the same ve
rsion and conduct test)
Slot fault: Replace the slot (please modify the corresponding data)
External interference factors
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BTS3612 Maintenance ModeBTS3612 Maintenance Mode
Remote maintenance
Run the Airbridge MML Client to query the running state of the
BTS3612 board, measure the performance of the BTS3612 carrier,
query the relevant alarms of the BTS3612 and handle them
correspondingly.
Local maintenance
Use cross-over cables to connect the portable computer with the
RJ45 interface of the BCKM board; and then use the Telnet console
to log on. Then, query the running state of the BTS3612 board, query
relevant alarms of the BTS3612 and handle them correspondingly.
Notes:
IP address: 172.16.16.16
log-on name: system,
log-on password: system
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QuestionsQuestions
Briefly describe the process of common
BTS3612 maintenance.
Briefly describe the common fault locating.
How many types of operation and maintenance
are there for the BTS3612?
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SummarySummary
Common fault locating
Common equipment maintenance
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Course ContentsCourse Contents
Chapter 1 Overview of BTS3612 Operation & Maintenance
Chapter 2 Handling of Common Faults of BTS3612
Chapter 3 Remote Operation & Maintenance System
Chapter 4 Local Operation & Maintenance System
Chapter 5 Contents of Routine Operation & Maintenance
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Chapter 2 Handling of Common Faults of BTS3612
Chapter 2 Handling of Common Faults of BTS3612
Loading fault
Clock fault
Traffic fault
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BTS3612 Loading Faults PhenomenaBTS3612 Loading Faults Phenomena
OML link between CBSC and CBTS is not set up;
The time expires during Ping to the BTS3612 operation &
maintenance IP address;
BCPM running abnormally;
The ACT indicator of BCIM flashes quickly in the frequency of
4HZ or flashes slowly in the frequency of 0.5HZ or 0.25HZ;
The ACT indicator of BCKM flashes quickly in the frequency of
4HZ or flashes slowly in the frequency of 0.5HZ.
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BTS3612 Loading Fault LocatingBTS3612 Loading Fault Locating
BCKM
BCIM
CMUX
CXIE
Whether BTS3612 operation & maintenance IP address is reachable by
the command “ping”?
Whether the E1 status is normal?
Whether route configured to the BTS3612 is
correct?
BAM
CIPS CBTS
Whether the operation & maintenance IP addresses of CBSC and CBTS, the operation & maintenance VPI/VCI of
CBSC and CBTS, and the IMA/UNI link and physical connection of the BTS3612
are consistent?
BCPM
Whether the data configuration is correct and the selected clock source is working normally?
BRDM
BTRM
Op
tica
l fibe
r
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BTS3612 Clock Fault PhenomenaBTS3612 Clock Fault Phenomena
Poor voice quality
Failure of soft handoff
Severe call drop
Number of traced satellites less than 4
ACT indicator of BCKM board flashing slowly in the
frequency of 0.25HZ
ACT indicator of BTRM board flashing slowly in the
frequency of 0.5HZ
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Clock Fault LocatingClock Fault Locating
BCKM
BCIM
BRDM
BTRM
Whether the Lightning arrester is normal?
Whether the broken circuit or
short circuit alarm occurs?
Whether clock source is configured correctly?
Whether the number of traced satellites are more than 4?
1ppsUTC time
1.2288G
The satellite antenna is oriented to the whole sky.
There is no interference source around the satellite antenna.
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BTS3612 Traffic Fault PhenomenaBTS3612 Traffic Fault Phenomena
Traffic interruption
Poor voice quality
ACT indicator of BCPM flashing quickly in the
frequency of 4HZ or flashing slowly in the
frequency of 0.5HZ or 0.25HZ.
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Whether the Local CELL ID, Local Sector ID, CEPOOL ID, Carrier ID, Signaling IP address ,
Service Link VPI,VCI,VCCI are consistent between BSC and BTS?
BTS3612 Traffic System Faults LocatingBTS3612 Traffic System Faults Locating
DFU/DDU/
CDU
RLDU
BHPA
BCPM
BCI
M
BRDM
BTRM
Master antenna standing wave ratio
Blind mate Blind mate
Optical fiberBlind mate
Diversity antenna standing wave ratio
Setting of S/W dip switch
Abis interface
Blind mate Blind mate
Blind mate
Whether the connection between
BTRM,BHPA and RLDU,
DDU/DFU/CDU are normal?
Whether the Optical Fiber is
normal?
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QuestionsQuestions
Briefly describe the handling of BTS3612 loading faults.
Briefly describe the handling of BTS3612 Traffic faults.
Briefly describe the handling of BTS3612 clock system
faults.
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SummarySummary
Locating of BTS3612 loading faults
Locating of BTS3612 clock system faults
Locating of BTS3612 Traffic faults
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Course ContentsCourse Contents
Chapter 1 Overview of BTS3612 Operation & Maintenance
Chapter 2 Handling of Common Faults of BTS3612
Chapter 3 Remote Operation & Maintenance System
Chapter 4 Local Operation & Maintenance System
Chapter 5 Contents of Routine Operation & Maintenance
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Chapter 3 Remote Operation & Maintenance System
Chapter 3 Remote Operation & Maintenance System
Section 1 Remote Maintenance Section 1 Remote Maintenance
Channel of BTS3612 Channel of BTS3612
Section 2 Common Operations
of BTS3612 Board Management
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Remote Maintenance Channel of BTSRemote Maintenance Channel of BTS
BCKM
BCI
M
CMUX
CXIE
Airbridge MML Client.Pay attention to the Rou
te Configuration
BAM
CIPS CBTSPay attention to the Bootp parameter of the command “ADD BTSOMLNK” and “ADD BSCBTSI
NF”, the parameters should be consistent with those of “ADD BTSBTPIN
FO” and “ADD BTS”
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Chapter 3 Remote Operation & Maintenance SystemChapter 3 Remote Operation & Maintenance System
Section 1 Remote Maintenance
Channel of BTS3612
Section 2 Common Operations Section 2 Common Operations
of BTS3612 Board Managementof BTS3612 Board Management
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Common Operations of BTS3612 Board Management
Common Operations of BTS3612 Board Management
Reset BTS3612 board (RST BTSBRD)
This command is used to reset the specified BTS3612 board.
Query the BTS3612 board version information (DSP
BTSBRDVER)
This command is used to query the BTS3612 board version
information, including the hardware version and software version
information of each board.
Query the BTS3612 board status (DSP BTSBRDSTAT)
This command is used to query the BTS3612 board status.
Query the baseband frame status (DSP BTSFRMSTAT)
Querying the status of all boards in the baseband frame.
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BTS3612 Board StatusBTS3612 Board Status
Operation status
The Operation Status includes two status: Enabled and Disabled;
Available status
The available status is the supplementary description for the operation
status. When the operation status is enable, there are two available st
atuses corresponding the board performance: Degraded and Blocked.
When disable, there are three statuses as Failed, Not Started(offline), a
nd NotInstalled.
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BTS3612 Board StatusBTS3612 Board Status
Active/standby status
Describe the active/standby status of the BCKM board;
Chips Status
Describe the status of CSM5000 chips on BCPM, including
three statuses: Ok, Error and NotMounted;
Note:
The chip status will be displayed during query of BCPM
status only when this board is normal;
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Common Operations of BTS3612 Resource Management
Common Operations of BTS3612 Resource Management
Block BTS Logical Resource
This command is used to block BTS logical resources,
which are specified according to local cell No., local
sector No. and carrier ID.
Three blocking levels: immediate block, delay block and
idle block.
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QuestionsQuestions
How to block the sector carrier?
How many statuses are there for the BTS3612 board?
What do they mean respectively?
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Course ContentsCourse Contents
Chapter 1 Overview of BTS3612 Operation & Maintenance
Chapter 2 Handling of Common Faults of BTS3612
Chapter 3 Remote Operation & Maintenance System
Chapter 4 Local Operation & Maintenance System
Chapter 5 Contents of Routine Operation & Maintenance
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Methods for Setting BTS3612 Local Maintenance
Methods for Setting BTS3612 Local Maintenance
Use cross-over network cables to connect the portable
computer with the ETH interface of the BCKM board;
and set the IP address of the portable computer and that
of the BCKM board within the same network section with
the mask of 255.255.0.0.
Log in to the BTS3612 through telnet 172.16.16.16 and
use “system” as either the user name and password to
enter the system.
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Query the BTS3612 board version information (DSP
BTSBRDVER)
Query the software and hardware versions of the BTS3612
board, including the board PCB version, BIOS version,
software version, logic version and BCPM board CSM5000
chip version etc.
Command format: dsp btsbrdver:brdtp=bckm,brdid=0
Query the BTS3612 board status (DSP BTSBRDSTAT)
This command is used to query the BTS3612 board status.
Command format: dsp btsbrdstat:brdpt=bckm,brdid=0
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Query the BTS3612 board special status (DSP BTSBRDSPECSTAT)
Command format: dsp btsbrdspecstat:brdtp=bckm_clk,brdid=0
At present, the BTS3612 boards supporting this command include: special
status of BCKM CLK, BCKM OMU, BCKM SIG, BCIM and BTRM.
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Query the BTS3612 baseband frame status (DSP BTSFRMSTAT)
This command can be used to query the slot IDs and working statuses of boar
ds in the BTS3612 baseband frame. The working statuses include: Enable, D
isable and Absent.
Query BTS Current Alarm (LST CURALM)
This command is used to query the current alarms of the BTS3612 board (i.e.
generated alarms that have not disappeared). A maximum of 20, 000 alarms
(including the current alarms and history alarms) can be saved.
Command format: LST CURALM[:BRDTP=<BCIM>][,BRDID=<0>][,BGN DT=
<2000&1&1>][,BGN TM=<0&0&0>][,END DT=<2005&12&31>][,END TM=<2
3&59&59 >][,ALARM CODE=<255>][,SUBUNIT TYPE=<255>][,SUBUNIT N
O=<255 >][,ALARM DESCRIP="<STRING>"]
For example: lst curalm:brdtp=bcim,brdid=0
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Query the BTS3612 history alarms (LST HISALM)
Query all history alarms of the BTS3612 (i.e.: generated alarms that h
ave disappeared). If the board is reset, the current alarms will becom
e history alarms. A maximum of 20, 000 alarms can be saved at the
BTS3612 (including current alarms and history alarms).
Command format: LST HISALM[:BRDTP=<BCIM>][,BRDID=<0>] [,B
GN DT=<2000&1&1 >][,BGN TM=<0&0&0>][,END DT=<2005&12&3
1>][,END TM=<23&59&59 >][,ALARM CODE=<255>][,ALARM TYPE
=<ALL>][,SUBUNIT TYPE=<255 >][,SUBUNIT NO=<255>][,ALARM
DESCRIP="<STRING>"]
For example: lst hisalm:brdtp=bcim,brdid=0
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Delete BTS3612 history alarms (DEL HISALM)
Command format: DEL HISALM[:BRDTP=<BCIM>][,BRDID=<0>]
[,BGN DT=<2000&1&1>][,BGN TM=<0&0&0>][,END
DT=<2005&12&31>][,END TM=<23&59&59 >][,ALARM
CODE=<255>][,ALARM TYPE=<ALL>][,SUBUNIT TYPE=<255 >]
[,SUBUNIT NO=<255>][,ALARM DESCRIP="<STRING>"]
For example: del hisalm:bgn dt=2002&1&1,bgn tm=0&0&0,end
dt=2002&8&5,end tm=23&59&59
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Cell blocking command (BLK BTSCELL)
The function of this command is to block the carrier in a certain sector of a
BTS;
After the cell blocking command is executed, there will be no power output
from BTRM under the carrier of this sector. If there are services under the
carrier of this sector before it is blocked immediately, the services will be
interrupted. In addition, after successful execution of the cell blocking
command, the subscriber cannot be accessed to the carrier of this sector;
When it is necessary to replace BTRM or conduct such operations as repair
on BTRM, please first block the sector carrier where this BTRM is located
and the replace BTRM or conduction other operations;
Command format: BLK BTSCELL: LOCALCELLID=<6>,
LOCALSECTORID=<0>, CRRID=<0>, LKTP=<IDLE>,DLYTM=<10>
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Channel processing board blocking command (BLK BTSBCPM)
This command is used to block the channel processing board;
For a resource pool, only after all the BCPMs have been blocked ca
n all the carriers in this resource pool be blocked. After all the carriers
in this resource pool have been blocked, all the services at these carr
iers will be interrupted and the subscriber access is unavailable too;
The blocking of the BCPMs may lead to service interruption. Howeve
r, as long as one channel processing board is working normally and h
as not been blocked in the resource pool, this operation will not influe
nce the access of subsequent subscribers.
Command format: BLK BTSBCPM:BRDID=<0>,BLKTP=<IDLE>, DL
YTM=<10>
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Unblock BTS Channel Process Module(UBL BTSBCPM)
Unblock the channel processing board;
The services will not be influenced when the channel processing boar
d is unblocked.
Command format: UBL BTSBCPM:BRDID=<0>
BTS3612 configuration saving command (SAV BTSCFG)
Save the current running data of the BTS3612 to the Memory Flash o
f the BCKM board.
Command format: SAV BTSCFG
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Common Operations of BTS3612 Local Maintenance
Common Operations of BTS3612 Local Maintenance
Query the configuration command (DSP BTSCFG)
Query all the current running configuration data of the BTS3612 in on
e time. The query result is the same as the configuration command fo
rmat.
Command format: DSP BTSCFG
Clear the configuration saved in the BTS3612 FLASH (ERS BTS
CFG)
It is used to erase the configuration saved in the BTS3612 Flash.
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QuestionsQuestions
What settings of the telnet console are needed
during the BTS3612 local maintenance?
How to perform the operations of querying alarm,
blocking resource during local maintenance?
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Course ContentsCourse Contents
Chapter 1 Overview of BTS3612 Operation & Maintenance
Chapter 2 Handling of Common Faults of BTS3612
Chapter 3 Remote Operation & Maintenance System
Chapter 4 Local Operation & Maintenance System
Chapter 5 Contents of Routine Operation & Maintenance
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Objective of Routine Operation & Maintenance
Objective of Routine Operation & Maintenance
Objective of routine operation & maintenance
To periodically check the running state of the equipment; to
actively analyze the network; and to adopt corresponding
solving measures so as to remove hidden troubles in time.
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Contents of Monthly MaintenanceContents of Monthly Maintenance Conversation test
Use an MS to dial a number to conduct the conversation test. At the same
time, a person is arranged at the BSC side for observation of whether the
conversation at all the sector carriers is normal. There should be no noise,
call drop or cross talk etc.
Check of the grounding, lightning protection and power supply systems
Check the working state of the grounding system and lightning protection
systems; check whether the connection is reliable, whether the power supply
system is working normally, and whether the lightning arrester is burned.
Please ensure that the power lightning arrester and antenna feeder lightning
arrester are working soundly.
Check of the working state of the antenna feeder part
Check whether there is standing wave ratio alarm, whether the direction of
the antenna support is deviated, and whether the waterproof function of the
feeder cable is normal.
Check of the running state of the secondary power module
Check whether the secondary power module is working normally and
whether there is any alarm.
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Contents of Quarterly MaintenanceContents of Quarterly Maintenance Primary power check
Measure the output voltage. The range of the output voltage is: -40~-60V Check of the fan running state
Check whether the fan is running normally and whether there is any fan alarm. Besides fan blocking, the failure of the temperature and rotation speed control at the fan monitoring board may also lead to generation of corresponding alarms. Please note to check these alarms.
Drive test
Use a test MS to check the handover and coverage range. Standing wave check
Check whether there are standing wave ratio alarms generated at the antenna feeder through the maintenance console.
Check of alarm collection equipment
Check whether the equipment for collection of such environment alarms as the humidity alarm, temperature alarm and fire alarm is working normal.
Check of equipment room environment
Check whether the temperature, humidity, dust prevention and power supply etc. of the equipment room comply with the requirements. Temperature: -5C~50C ; relevant humidity: 5%~90%.
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SummarySummary
Objective of BTS3612 routine maintenance
Contents of BTS3612 monthly routine maintenance
Contents of BTS3612 quarterly routine maintenance
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