221660734 compact outdoor bs30 bts maintenance manual1

8/11/2019 221660734 Compact OutDoor BS30 BTS Maintenance Manual1

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ZXG10-BS30Compact Outdoor BTS

Maintenance Manual(Emergency Handling)

Version 1.5

ZTE CORPORATIONZTE Plaza, Keji Road South,

Hi-Tech Industrial Park,Nanshan District, Shenzhen,P. R. China518057Tel: (86) 755 26771900 800-9830-9830Fax: (86) 755 26772236

URL: http://support.zte.com.cnE-mail: [email protected]


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LEGAL INFORMATION

Copyright 2006 ZTE CORPORATION.

The contents of this document are protected by copyright laws and international treaties. Any reproduction ordistribution of this document or any portion of this document, in any form by any means, without the prior writtenconsent of ZTE CORPORATION is prohibited. Additionally, the contents of this document are protected bycontractual confidentiality obligations.

All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTECORPORATION or of their respective owners.

This document is provided as is, and all express, implied, or statutory warranties, representations or conditionsare disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose,title or non-infringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from theuse of or reliance on the information contained herein.

ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applicationscovering the subject matter of this document. Except as expressly provided in any written license between ZTECORPORATION and its licensee, the user of this document shall not acquire any license to the subject matter

herein.

The contents of this document and all policies of ZTE CORPORATION, including without limitation policies related tosupport or training are subject to change without notice.

Revision History

Date Revision No. Serial No. Purpose

10-Aug-06 R1.0 sjzl20061265 English For Customers


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ZTE CORPORATIONValues Your Comments & Suggestions!

Your opinion is of great value and will help us improve the quality of our productdocumentation and offer better services to our customers.

Please fax to: (86) 755-26772236; or mail to Documentation R&D Department,ZTE CORPORATION, ZTE Plaza, A Wing, Keji Road South, Hi-Tech Industrial Park,Shenzhen, P. R. China 518057.

Thank you for your cooperation!

DocumentName

ZXG10-BS30 (V1.5) Compact Outdoor BTS Maintenance Manual (Emergency Handling)

Product Version V1.5Document RevisionNumber

R1.0

Equipment Installation Date

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Contents

About this Manual............................................................. i

Purpose................................................................................ i

Intended Audience ................................................................. i

Prerequisite Skill and Knowledge.............................................. i

What is in This Manual............................................................ i

Related Documentation.......................................................... ii

Conventions......................................................................... ii

How to Get in Touch............................................................. iii

Chapter 1..........................................................................1

Chapter Name ..................................................................1

Basic Instruction.............................................................1

Precautions ....................................................................2

Emergency Maintenance Work Flow ...................................2

Chapter 2..........................................................................5

Emergency Maintenance .................................................5

Individual BTS Maintenance..............................................5

Multiple BTSs Maintenance ............................................. 11

Chapter 3........................................................................13

Fault Feedback...............................................................13

Fault Feedback Factors ..................................................13

Feedback Data.............................................................. 15

BTS Dynamic Data Query..................................................... 16

Abis Interface Signaling Trace............................................... 16

OAM Signaling Trace ........................................................... 17

Alarm File Collection............................................................ 17

Foreground Print File collection ............................................. 18

BTS Version Information ...................................................... 19

ZDB File Collection.............................................................. 19


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Appendix A.....................................................................21

Abbreviations .................................................................21

Appendix B .....................................................................23

Figures............................................................................23

Appendix C .....................................................................25

Tables.............................................................................25

Appendix D.....................................................................27

Index ..............................................................................27


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Confidential and Proprietary Information of ZTE CORPORATION i

About this Manual

Purpose

This Manual provides basic information about ZXG10-BS30 BTS

emergency maintenance.

Intended Audience

This document is intended for Maintenance personnels whoperform maintenance activities on ZXG10-BS30 BTS.

Prerequisite Skill and Knowledge

For effective use of this document, users should have a good

understanding of GSM architecture. Familiarity with the followingis helpful:

ZXG10-BTS family and its various components

ZXG10-BS30 operating procedures

What is in This Manual

This Manual contains the following chapters:

This Manual contains the following chapters:

TA B L E 1 - C H A P T E R SUM M ARY

Chapter Summary

Chapter 1,

Overview

Describes basic instruction, precautions

and workflow of emergencymaintenance.

Chapter 2,

Emergency Maintenance

Describes emergency maintenance forservice interrupted BTS.

Chapter 3,

Fault Feedback

Describes fault feed back factors andfeed data collection methods.


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ii Confidential and Proprietary Information of ZTE CORPORATION

Related Documentation

The documentation set also includes the following manuals:

ZXG10-BS30 (v1.5) Compact Outdoor BTS Guide toDocumentation

ZXG10-BS30 (v1.5) Compact Outdoor BTS MaintenanceManual (Routine Maintenance)

ZXG10-BS30 (v1.5) Compact Outdoor BTS MaintenanceManual (Troubleshooting)

ZXG10-BS30 (v1.5) Compact Outdoor BTS Technical Manual

ZXG10-BS30 (v1.5) Compact Outdoor BTS Hardware Manual

ZXG10-BS30 (v1.5) Compact Outdoor BTS Installation

Manual

Conventions

ZTE documents employ the following typographical conventions.

TA B L E 2 T Y P O G R A P H I C A L C O NVENT I O NS

Typeface Meaning

Italics References to other Manuals and documents.

Quotes Links on screens.

Bold Menus, menu options, function names, inputfields, radio button names, check boxes, drop-down lists, dialog box names, window names.

CAPS Keys on the keyboard and buttons on screensand company name.

Const ant wi dth Text that you type, program code, files anddirectory names, and function names.

[ ] Optional parameters.

{ } Mandatory parameters.

| Select one of the parameters that are delimitedby it.

Note: Provides additional information about acertain topic.

Checkpoint: Indicates that a particular step needsto be checked before proceeding further.

Tip: Indicates a suggestion or hint to make thingseasier or more productive for the reader.

TypographicalConventions


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About this manual

Confidential and Proprietary Information of ZTE CORPORATION iii

TA B L E 3 MO USE OP E R A T I O N CO NVENT I O NS

Typeface Meaning

Click Refers to clicking the primary mouse button (usuallythe left mouse button) once.

Double-click Refers to quickly clicking the primary mouse button(usually the left mouse button) twice.

Right-click Refers to clicking the secondary mouse button(usually the right mouse button) once.

Drag Refers to pressing and holding a mouse button andmoving the mouse.

How to Get in Touch

The following sections provide information on how to obtainsupport for the documentation and the software.

If you have problems, questions, comments, or suggestionsregarding your product, contact us by e-mail [email protected]. You can also call our customer supportcenter at (86) 755 26771900 and (86) 800-9830-9830.

ZTE welcomes your comments and suggestions on the qualityand usefulness of this document. For further questions,

comments, or suggestions on the documentation, you can

contact us by e-mail at [email protected]; or you can fax yourcomments and suggestions to (86) 755 26772236. You can alsobrowse our website at http://support.zte.com.cn, which containsvarious interesting subjects like documentation, knowledge base,forum and service request.

Mouse

OperationConventions

CustomerSupport

DocumentationSupport


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iv Confidential and Proprietary Information of ZTE CORPORATION



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Confidential and Proprietary Information of ZTE CORPORATION 1

C h a p t e r

1

Chapter Name

This chapter describes basic instructions, precautions and work

flow of emergency maintenance.

Basic InstructionBefore doing emergency maintenance work, consider and followthe basic instructions:

1. Emergency maintenance should focus on restoring the

normal running of the equipment quickly.

2. To be more efficient in emergency troubleshooting, read

emergency maintenance documents in advance.3. In case of service interruption, contact maintenance

personnel at the OMCR side, query the related OMCR alarmsand identify the problem.

If the service interruption occurs to multiple BTSs, check

whether the Abis interface and the transmission circuitare normal.

If the module or board gets faulty, make sure whetherthe data or version of the board is changed.

If BSC, transmission equipment or transmission circuits

are normal, check and maintain the BTSs. Contact maintenance personnel at the OMCR side to co-

operate with the emergency maintenance at BTS side.

Carry the tools and common spare parts to the BTS sitefor emergency maintenance.

4. After finishing the emergent fault processing, collectequipment alarm information related to this accident. Sendthe relevant fault processing report, equipment alarm fileand log file to ZTE for fault analysis and location.


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ZXG10-BS30 V1.5Compact Outdoor BTS Maintenance Manual(Emergency Handling)

2 Confidential and Proprietary Information of ZTE CORPORATION

PrecautionsEmergency maintenance usually has an impact on system

running, so the maintenance personnel must have relevantmaintenance experience and familiar with the equipment.

Conduct maintenance under the instruction of experiencedmaintenance personnel.

If the fault is major, contact ZTE customer support center or ZTElocal office as soon as possible.


Work FlowF I G URE 1 - EM ERG ENCY MA I NT E NA N CE W O R K FL O W


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Chapter 1Chapter Name


Emergency maintenance flow includes the following steps.

1. Check the services.

According to service interruption, check whether the BTS fails

through the topological view, and check the alarm informationon OMCR client. Also check whether the fault occurs to individual

BTS or multiple BTSs.

2. Record fault abnormality and identify the fault cause.

Identify the fault cause according to the emergencymaintenance process in Figure 1 and make record, as shown inTable 4.

TA B L E 4 - A B N O R M A L I T Y R ECO RDS

Item Description of Abnormality

Emergency case occurring time

Emergency case range

Serious alarm item reported

Measurement index of abnormalperformance

Board with abnormal LEDindicators

BTS Version Number

OMCR version

Operation log information

Status query information

Signaling trace information

3. Detect and analyze the fault.

Detect and analyze the fault according to the fault symptoms.

If the fault is not caused by the BSS equipment, ask the relevantpersonnel to solve the problem.

If the fault lies in the BSS equipment, analyze whether the faultis in BSC or BTS.

If the fault cannot be cleared, then contact ZTE customersupport center or ZTE local office.

4. Restore the service.

After locating the fault cause, restore the service quickly. If thefault cause cannot be located soon, try to make a switchover,reset or change the board to restore the system services.


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Notes:

Before restoring the services, back up the system data.

Before changing the hardware configuration, such asconnection and board slot, record the current status first.

Record all steps and process during the service recovery.

5. Observe the restored service

After restoring the service from emergent fault, make sure thesystem runs normally.

Check the service recovery by making call test, and checkperformance report statistics.

6. Feedback

Summarize the fault process, record the fault processing tableand feed back to ZTE customer support centre.


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C h a p t e r

2


This chapter describes about emergency maintenance for service

interrupted BTS.

Emergency maintenance applies in the following two cases:

Individual BTS service interruption

Multiple BTS service interruption

Individual BTS MaintenanceFigure 2 shows the emergency maintenance flow chart forservice interrupted individual BTS.


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F I G URE 2 I N D I V I D U A L B TS EM ERG ENCY MA I NT E N A NCE FL O W C H A R T


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Chapter 2Emergency Maintenance


BTS emergency maintenance involves the following steps:

View the alarm information and performance statistics reportat OMCR client. Collect subscribers complaints and analyzethe BTS fault situation.

Check whether the fault caused to individual BTS or multiple

BTSs.

Check the power supply is stable or not. If not, observe it for awhile and then perform the following tests.

Check external power voltage range at the input port of thecabinet.

Normal system voltage range is given below:

Approximate working power supply voltage is 220 VAC

(130 VAC~300 VAC).When 110 VAC power input, the approximate value is110 VAC (88 VAC~ 132 VAC).

If the external power supply is normal, turn off the powersupply switch. Check the connections between power cablesand the cabinet.

If the connections are loose, then check whether the power

supply channel has the burst trail.

Confirm the transmission status with the Maintenance

personnel to make sure whether the transmission status isnormal.

Make sure whether data adjustment or cut-over was madebefore.

Perform the transmission loop test from BTS and BSC to

identify the transmission status.

Uplink and downlink signal communications are normal andthe BTS cannot be normally started when there are cross

connected lines for transmission.

If the problem lies in transmission, ask the transmission

personnel to handle it as soon as possible.BTS has the following requirements for transmission indices:

Transmission Bit Error Ratio (BER) should be lesser than 10-6.

Otherwise, it may lead to data output error or LAPD transientinterruption.

Satellite transmission delay should be lesser than 260 ms.Otherwise, it may cause call drop, congestion or abnormaldata transmission.

Clock precision should be lesser than 0.05 ppm(corresponding to 13 MHz 0.65 Hz). If the switching

Check SystemServices

Power SupplyFailure

Transmission

Failure


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requirement is not considered, the clock precision for the

external can be 0.2 ppm.

Normally, BTS clock precision should be less than 0.02 ppm.

TS allocation failure causes LAPD interruption under normaltransmission conditions.

Main causes of TS allocation failure:

Inconsistency between the background configuration dataand the data indicated by the DIP can cause LAPDinterruption.

E1 timeslot multiplexer in the middle of the transmission

path can cause TS allocation inconsistency between BTS andBSC.

When multiplexer fails or its data configuration is wrong. E1timeslot for the BTS cannot transmit data transparently andBTS LAPD functions improperly.

BSC and BTS check the received signals, not transmissionsignal. So, transmission problem will not be reported as analarm. Remove the transmitting E1 on either side and checkwhether the peer side can receive signals.

BSC can detect a remote alarm on the downlink. LEDIndicator on the TIC will not blink when the downlink E1 doesnot receive signals.

Record LED indicator states of the faulty boards, as shown in

Table 6.

TA B L E 5 - FA UL T B O A R D I NDI CAT O R ST A T U S E S

LEDIndicator

Color

(A for Red/Bfor Green)

Blinking Pattern

(1 Hz A/4 Hz B/ConstantlyOn C/ Constantly OffD/Others E)

Others

(In the Case of E)

Record faulty boards location in the following format:

Site type:

Model:

Position:

Record the hardware and software version number, as shownin Table 6.

Hardware

Failure


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TA B L E 6 - R ECO RD HA RDWA RE /S O F T WARE VERSI O N NU M B E R

Equipment Module Version

CMM

CMM_LOG

FUC_LOG

CIP

CHP

BS30 (v1.5)

FUC

Power-off the faulty module and then power it on again.

Unplug the module and then plug it again.

Replace the faulty module.

Check the BTS and transmission equipment grounding.

Check whether the grounding cable is loose, aging or rusty.

Check whether the grounding resistance is in the normal

range.

Check whether the grounding drop line is connected to theground grid fixedly.

Check whether the ground grid system complies with the

design, and whether receptivity reduction mixture is addedregularly.

Check the antenna feeder cable connections.

Check whether the impedanceof TIC board is consistent withBTS.

Check whether the radio data and version type are correct.

Check whether the data configured at the switching side arecorrect.

After troubleshooting, fill the maintenance details in the BTSmaintenance table.

F I L L I N T H E B TS M A I N T E N A N C E T A B L E , A S S H O W N I N

Table 7.

Externalproblems

BSC Failure

Feedback


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TA B L E 7 - B TS MA I N TE NA NC E R ECO RD

OfficeName

MaintenancePersonnel

Tel

HandlingTime

Model Version

Fault time,abnormityindicationanddescription

OnsiteMaintenance details

Result andConclusion


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Multiple BTSs Maintenance

F I G URE 3 - MU L T I P L E B TS EM ERG ENCY MA I NT EN A N CE F L O W CH A R T

Check the working status of current BSS network throughthe background alarm information and confirm the currentnetwork fault.

Check SystemServices


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Check the power supply is stable or not. If not, observe it fora while and then perform the following tests.

Check external power voltage range at the input port of thecabinet.

Normal system voltage range is given below:

Approximate working power supply voltage is 220 VAC

(130 VAC~300 VAC).

When 110 VAC power input, the approximate value is110 VAC (88 VAC~ 132 VAC).

If the external power supply is normal, turn off the powersupply switch. Check the connections between power cablesand cabinet.

If the connections are loose, then check whether the powersupply channel has the burst trail.

Confirm the transmission status with the maintenance

personnel to make sure whether the transmission status isnormal.

Make sure whether data adjustment or cut-over was madebefore.

Perform the transmission loop test from BTS and BSC toidentify the transmission status.

If the problem lies in transmission, ask the transmissionpersonnel to handle it as soon as possible.

If the interrupted BTSs are in cascading relation, powersupply failure or transmission interruption of a node BTS may

cause service interruption of other BTSs.

If the TIC or LAPD board is failure, the interruption occurs toBTSs that are on the same board.

Replace TIC or LAPD board in time, observe the channel

working status of BTSs in the dynamic data managementand restore the BTSs.

After troubleshooting, fill the maintenance details in the BTSmaintenance table.

Fill in the BTS maintenance table, as shown in Table 8.

Power SupplyFailure

TransmissionFailure

Link Failure

BSC BoardFailure

Feed back


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Troubleshooting Record

Record the server operation procedure by onsite personnel,

for the convenience of query. Record steps and time of onsite troubleshooting

Record troubleshooting operations

System Data Record

The data record has the status and problem information ofsystem running, which is the major way to locate the systemproblem.

Fault Feedback Table

Fault feedback table is shown in Table 8.

TA B L E 8 - O N -S I T E FA UL T FE E D B A C K TA B L E

Feedback byFeedbackTime

Received by

Onsite ContactPerson

TelEmail addressof ContactPerson

Department Model

Network Capacity Version

Fault time,abnormalityindications anddescription

Onsite OperationProcedure andHandling Process

Onsite DataFeedback


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Chapter 3Fault Feedback


Analysis andPreliminaryProcessingRemarks

Final processingSuggestions andConclusion

Person inCharge

Date

Feedback DataFeedback data about the BTS is listed in Table 9.

TA B L E 9 - F E E D B A C K DA T A O F B T S

Feedback DataRequired

Data Collection Method Usage

Site name, sitenumber, and BTSmodel

To query the proper site in theZDB file with relation to sitename and site number

Dynamic dataobservation

information, includingcell, carrier frequencyand channel

Refer Section Log on to theclient

Channel status is another way tojudge the system status

Abis InterfaceSignaling Trace

Refer Section Log on to theclient

Record the call status

OAM signaling traceRefer Section OAM signalingtrace

Record the information at theBTS

History alarm file andhistory notificationmessage in a week

Refer Section Logon to theclient

Record the fault information

Foreground print fileRefer Section Enter the

command

Foreground print information

records the abnormal situation


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Feedback DataRequired

Data Collection Method Usage

occurring in the running BSC

BTS versionRefer Section Logon to theclient

Different versions supportdifferent functions

Foreground ZDB fileRefer Section . Enter thecommand

Record the configurationinformation of foreground andconfirm the configurationinformation

BTS Dynamic Data Query

1. Log on to the client and Click Configuration ManagementDynamic data Managementin the OMCR main interface.

2. Select terrestrial or radio resources on navigation tree on the

left in the main interface. Right side of the main interfaceshows the dynamic properties of the site.

3. Perform dynamic properties and query operation.

4. Select Logical SiteCell nodeon the navigation tree and

select the cell, TRX(carrier frequency) or channelto query.

Note:Dynamic data consists of three status levels: cell-

level status, carrier frequencylevel status and channel-levelstatus. Conduct the query and get the information separately.

Abis Interface Signaling Trace

1. Log on to the client, select Performance Management

Signaling Trace on the OMCR main interface to enter thesignaling trace main interface.

2. Select Signaling TraceStarton the signaling trace main

interface to enter the signaling trace setupwindow.

3. Select BSC to be traced, select Abis interface message andAbis interface setting.

4. Click OK. Abis interface tracing window appears. Thentracing on Abis interface signaling is triggered.

5. Save the signaling to the specific target path and in thespecific filename.

6. To record the signaling trace data, click Record button todisplay Save dialogbox, and select the destination path andfile name to be saved.

Steps

Steps


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Chapter 3Fault Feedback


7. Abis interface trace has a large influence on the system load,

so each trace cannot be more than 10 minutes.

OAM Signaling Trace1. OAM signaling trace method is same as Abis signaling trace.

2. Only select message type as OAM message and relevantsites.

Refer Section Log on to theclient.

Alarm File Collection

Unrecovered Alarm

1. Logon to the client, select Fault Management Alarm

management,to enter alarm management main interface.

2. Click File History Alarm Query on the alarm

management interface.

3. Select Currently Unrecovered Alarm in the Query Typeoption.

4. Select Start timeand Stop time in the intervaland click

Next.5. Select the relevant network management domain and select

all alarm.

6. Click Nextand select Alarm type in Select box, select Alarm

level in Select Alarm Class box, click ALL to select allalarm levels.

7. Click Finishto output alarm data.

History Alarm

1. Click File History Alarm Query on the alarm

management interface.

2. Select Recovered Alarm in the Query type option. Select

the day in the previous week as the date, including thecurrent day.

3. Select Start timeand Stop time in the intervaland clickNext.

4. Select the relevant network management domain and selectall alarm.

Steps

Steps

Steps


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5. Click Nextand select Alarm type in Select box, select Alarm

level in Select Alarm Class box, click ALL to select allalarm levels.

6. Click Finishto output alarm data.

Information Message

1. Select File History Querymenu in alarm management

interface to enter the interface for the conditional alarmquery.

2. Select Informationas the query type and time period to bequeried.

3. Select OMCR Background Notification as the informationsource and then the NM domain to be queried.

4. Select the alarm code to be queried and select All NotificationCodes.

5. Click Finishto finish the operation.

6. Select report output to export the result to an EXCEL file.

Foreground Print File collection

1. Enter the command prompt.

2. Log on to the server.

3. Change to home directory.

Execute the following command:

#cd $OMCHOME

4. Connect to foreground.


#Omcf t p

5. Connect the corresponding MP.

For example: Connect x. y. z

Tip:x indicates the ID of the BSC and y for the module No.

The value of z is usually 2 and 3. The value 2 indicates active MPand 3 indicates standby MP.


f t p>connect 1. 1. 2

6. Get LOG file from the / TRACEdirectory.

Enter in to the / TRACEdirectory


Steps

Steps


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6. Connect to the corresponding MP.

For example: Connect x. y. z

Tip:indicates the ID of the BSC and y for the module No.The value of z is usually 2 and 3. The value 2 indicates active MPand 3 indicates standby MP.


f t p>connect 1. 1. 2

7. ZDB files are stored in / dat a/ wor kdirectory of MP board.

Execute the following command to change the directory:

cd data/ work/

8. Download ZDB files.

Execute the following command:f t p>prompt

f t p> mget *. *

f t p>bye


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A p p e n d i x

A

Abbreviations

Abbreviation Full Name

A

AC Alternative Current

ADSL Asymmetrical Digital Subscriber Line

B

BSC Base Station Controller

BSS Base Station System

BTS Base Transceiver Station

C

CHP Channel Processor

CIP Carrier Interface Part

CLK Clock

CMM Control and Maintenance Module

D

DC Direct Current

F

FUC Frame Unit Controller

G

GSM Global System for Mobile communication

H

HDLC High level Data Link Controller

L

LAPD Link Access Protocol D-Channel

M

MP Main Processor


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A p p e n d i x B

Figures

Figure 1 - Emergency Maintenance Work Flow ........................2

Figure 2 Individual BTS Emergency Maintenance Flow Chart ..6

Figure 3 - Multiple BTS Emergency Maintenance Flow Chart.... 11


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A p p e n d i x

C

Tables

Table 1 - Chapter Summary..................................................i

Table 2 Typographical Conventions ...................................... ii

Table 3 Mouse Operation Conventions ................................. iii

Table 4 - Abnormality Records..............................................3

Table 5 - Fault Board Indicator Statuses ................................8

Table 6 - Record Hardware/Software Version Number..............9

Table 7 - BTS Maintenance Record ......................................10

Table 8 - On-Site Fault Feedback Table................................14

Table 9 - Feedback Data of BTS..........................................15


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A p p e n d i x

D

Index

Abis Interface Signaling Trace..... ......18

Alarm File Collection.........................19Base Station Dynamic Data................18bit error ratio....................................... ..7

BTS Version Information...................21Clock precision.....................................7Emergency maintenance.................... ...1

Foreground Print File ...................... ...20

History Alarm.....................................19Information Message..........................20OAM Signaling Trace ........................19

transmission delay....................... .........7Unrecovered alarm.......................... ...19ZDB File ...................... ......................21

221660734 compact outdoor bs30 bts maintenance manual1

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