Internal Use Only

Analysis of Monthly Report on GSM Network Performance IndicatorsWork GuidebookVersion: V1.2Released by:

GSM Network Planning & Optimization Dept.

Engineering Service DivisionZTE CorporationGSM Network Planning & Optimization Dept. Work GuidebookVersion introduction:Version Date Writer Assessor TranslatorAmendment records

V1.02008-07-05Fei AiPingMa KuangShengNone

V1.12008-09-10Fei AiPingMa KuangShengChanged data exporting method to NDE; monthly data feedback time is changed to the third working day after the 20th of each month; assessment graduation tool is amended, network divided into five types.

V1.22009-02-01Ji JunFei AiPingFeng XiaoYingUpdated assessment graduation tool; updated name of department.

Contents 31Overview

42Judgment Criteria for Monthly Assessment of GSM Networks

42.1Scoring formula

42.1.1For overseas GSM networks

42.1.2For domestic GSM networks

52.2Graduation of network performance evaluation

52.3Tools for evaluation graduation

63Closely-Monitored GSM Networks of A Month

74Explanations of Performance Indicators of Privileged GSM Networks

74.1TCH allocation success rate(%)(excl. HO)

74.2TCH call drop rate (incl. HO)(%)

74.3Handover success rate

84.4Call setup success rate

95Requirements on Monthly Data Feedback

95.1Person liable for data feedback

95.2Deadline of data feedback

95.3Template of data feedback

105.4Method of extracting data

105.5Time periods of data collection

105.6Feedback method of data

105.6.1Explanation for data feedback failure

126Instructions on Analysis of Monthly Report on Performance Indicators of Key Networks

137Scheme for Handling Lower-ranked or Unadjusted Networks

14Appendix A Explanations on NOP Usage

1 OverviewMonitoring and analysis of network performance indicators is an important part of network optimization and operation maintenance work. Common Network performance indicators comprise call drop rate, congestion rate, handover success rate, radio system connection rate, traffic volume, TCH availability, etc.. In network optimization, Network performance indicators can objectively reflect situations of network operation and maintenance. Monitoring and analysis of Network performance indicators is an important method to discover and solve network problems, it is of directive significance in network planning, network optimization and problem solving.In order to better monitor the operation and maintenance of GSM network globally and deliver in-time professional suggestions to engineers on sites and improve customer satisfaction, on-site GSM engineers are required to extract and analyze Network performance indicators in accordance with specific rules every month, and send the original data and the analysis report to network indicator monitoring engineers of GSM Network Planning and Optimization Department. 2 Judgment Criteria for Monthly Assessment of GSM NetworksIn order to give a visualized display of network operation and maintenance quality, we have specially formulated the judgment criteria for monthly assessment of GSM networks.

2.1 Scoring formula2.1.1 For overseas GSM networksJudgment criteria for overseas GSM networks

Item Benchmark KPI benchmarkFull markCondition for full mark Criteria for awarding marksCriteria for deducting marks

Call set-up success rate1292%2096.0%1 point is awarded for each increase of 0.5%, full mark 20.1 point is deducted for each decrease of 1%, lowest mark 0.

TCH call drop rate(incl.HO)240.8%400.35%0.9 point is awarded for each decrease of 0.025%, full mark 40.1 point is deducted for each increase of 0.05%, lowest mark 0.

HO success rate2493%4096.0%1.34 points are awarded for each increase of 0.25%, full mark 40.1.5 points is deducted for each decrease of 0.5%, lowest mark 0.

2.1.2 For domestic GSM networksJudgment criteria for domestic GSM networks

Item Benchmark KPI

benchmarkFull

markCondition for

full mark Criteria for

awarding marksCriteria for

deducting marks

TCH allocation success rate (exc.HO)1295.0%2099.5%0.8 point is awarded for each increase of 0.45%, full mark 20.0.6 point is deducted for each decrease of 0.25%, lowest mark 0.

TCH call drop

rate (incl. HO)240.8%400.3%0.8 point is awarded for each decrease of 0.025%, full mark 40.0.9 point is deducted for each increase of 0.025%, lowest mark 0.

HO success rate2494.0%4098.0%1 point is awarded for each increase of 0.25%, full mark 40.1 point is deducted for each decrease of 0.25%, lowest mark 0.

2.2 Graduation of network performance evaluationGraduation of network performance evaluation

Ranks Excellent Good Acceptable No goodBad

Evaluation criteria>=90Options, or click the icon and the dialog box Options will pop out, as shown in Fig3.1.

ZXPOS CNO1-G network data exportNDE

Fig 3.1 Dialog box Options

Step 2: click Add in the tab of Config LAN, the dialog box of Add LAN Info will pop out, as shown in Fig 3.2.

Fig 3.2 Dialog box of Add LAN Info

Step 3: input LAN name, then click OK, addition of LAN is completed.

3.1.2 To modify LAN

Step 1: choose Config->Options, or click the icon and the dialog box Options will pop out, as shown in Fig3.1.

Step 2: in the LAN list under LAN Config, choose a LAN to be modified, click Modify, then a dialogue box Modify LAN Info will pop out, as shown in Fig 3.3.

ZXPOS CNO1-G network data exportNDE

Fig 3.3 Dialogue box Modify LAN Info

Step 3: modify LAN name, click OK, modification of LAN is completed.

3.1.3 To delete LAN

Steps of deleting LAN in NDE are as follows:

Step 1: choose Config->Options, or click the icon and the dialog box Options will pop out, as shown in Fig 3.1.

Step 2: in the LAN list under LAN Config, choose a LAN to be delted, click Delete, then a dialogue box Warning will pop out, as shown in Fig 3.4.

Fig 3.4 Dialogue box Warning

Step 3: click Yes, the deletion of LAN is completed.

3.2 Configuration of data connection

3.2.1 To add connection

Step 1: choose Config->Options, or click the icon and the dialog box Options will pop out, as shown in Fig3.1. Choose Config Connection, as shown in Fig 3.5.

Fig 3.5 Tab Config Connection

Step 2: click Add in Config Connection, a dialog box Add Connection Info, as shown in Fig 3.6.

Fig 3.6 dialog box Add Connection Info

Step 3: input OMCR name, which is user-defined.

Step 4: input database instance name, which usually is the default value OMC for Oracle database.

Step 5: choose database type; default is Oracle.

Step 6: input the IP address of database server.

Step 7: input user name of database.

Step 8: input password of database.

Step 9: select character set, the configuration of which only has effect on Oracle database. If the character set configuration is at variance with that of database server, the exported Chinese characters will be disordered codes. Default of this character set is: AMERICAN_AMERICA.WE8ISO8859P1.

Step 10: click OK to complete addition of connection.

Notes:

In step 9, if default character set AMERICAN_AMERICA.WE8ISO8859P1 is adopted at first, and it is different from that of Oracle database server, which may cause the Chinese characters (eg. cell name) in the exported performance configuration files to be disordered codes. In this case, delete the current connection, then recreate connection, and select SIMPLIFIED CHINESE_CHINA.ZHS16GBK when setting character set.

If the added database connection is MINOS database connection, after the connection is added, a dialog box of MINOS configuration will pop out. In this dialog box, we can config the OMCR database, which is under MINOS. Please refer to 3.2.3 for details.

Common mistakes in creating connections are as follows:

1. If the database instance name is input wrong, a dialog box as shown in Fig 3.7 will pop out.

Fig 3.7

2. If the IP address of database server is input wrong, a dialog box as shown in Fig 3.8 will pop out.

Fig 3.8

3. If the user name and password are input wrong, a dialog box as shown in Fig 3.9 will pop out.

Fig 3.9

3.2.2 To delete connection

Fig 3.10 Dialog box Warning

Step 1: choose Config->Options, or click the icon in tool bar and the dialog box Options will pop out, as shown in Fig3.1; choose Config connection as shown in Fig 3.5.

Step 2: in the connection list under Config connection, choose one or several connections, click Delete, then a dialog box Warning will pop out, as shown in Fig 3.10.

Step 3: click Yes to finish the deletion of connection.

3.2.3 MINOS configuration

Step 1: choose Config->Options, or click the icon in tool bar and the dialog box Options will pop out, as shown in Fig3.1; choose Config connection as shown in Fig 3.5.

Step 2: click MINOS Config, a dialog box of MINOS Config will pop out as shown in Fig 3.11.

Fig 3.11 Dialog boxMINOS Config

Step 3: choose the MINOS connection to be configed from the pull-down list box in dialog box MINOS Config.

Step 4: IP addresses of the OMCR will be displayed in the IP address list on the right pane of the dialog box. Choose one or several OMCR connections in the IP address list.

Step 5: click to perform the deletion.

3.3 BSC BSC configuration

3.3.1 To add BSC to LAN

Fig 3.12 Tab BSC configuration

Step 1: choose Config->Options, or click the icon in tool bar and the dialog box Options will pop out, as shown in Fig3.1; choose Config BSC, as shown in Fig 3.12.

Step 2: choose LAN name in the pull-down list box of LAN Name.

Step 3: choose BSC in the list box Unconfiged BSC on available OMCR.

Step 4: click > to delete the selected BSC from the LAN.

3.4 Export of performance data

After the configurations described in chapter 3.1, 3.2 and 3.3 have been completed, we can start to export performance data. Procedures are as follows:

Step 1: choose Operate->implement, or click the icon in tool bar and the dialog box Condition set will pop out, as shown in Fig 3.14.

Fig 3.14 Dialog box Condition set

Step 2: click the button corresponding to performance data, a dialog box of Path Set will pop out as shown in Fig 3.15. We can adopt the default path\NDE\data

Fig 3.15 Dialog box Path Set

Step 3: after selecting the path for storing performance data file, click OK.

Step 4: go back to the dialog box as shown in Fig 3.14, choose the begin date and end date of performance data in the Time range for exported data.

Step 5: select or unselect the user-defined time (everyday mode).

Step 6: choose the begin time and end time of exported performance data.

Step 7: click OK, data exporting starts. When data exporting is finished, NDE main interface is as the one shown in Fig 3.16.

Meaning of step 5, 6 and 7 is as bellow: when the user-defined time (everyday mode) is selected, suppose the begin date is 2008-01-01, end date is 2008-01-31, the begin time is 8:00:00, end time is 8:59:59, then the performance data exported will be those from 8:00:00 to 8:59:59 of every day from 2008-01-01 to 2008-01-31. If the everyday type is not selected, the data exported will be all those from 8:00:00 on 2008-01-01 to 8:59:59 on 2008-01-31.

Fig 3.16 Main NDE interface with performance data exported

Notes:

During the process of exporting performance data, the performance-related configuration files will be exported too.

To choose Operate->End, or click the End icon in tool bar will terminate the data exporting task.

3.5 FAQ

3.5.1 When I export only two sheets of performance data, why there are several data files under the exported data directory?

Answer: During the process of exporting performance data, the performance-related configuration files will be exported too. When import performance data into NOP, the performance-related configuration data is needed, or the import of data can not be executed.

Reminder: do remember to copy the performance-related configuration files when copying performance data.

3.5.2 When I click to export data, there is no response from NDE (for over 1 minute)?

Answer: when NDE fails to respond for a long time, it may be due to the original firewall of WINDOWS, which intercepts the data package sent by the server.

Solution: close the firewall and restart NDE.

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This document contains proprietary information of ZTE Corporation and is not to be disclosed or used except in accordance with applicable agreements.

_1306913263.xls

Network KPI Graduation Result

CountryItem/BSCCall setup success rateCall drop rate (incl.HO)HO success rateGrade of call setup success rateGrade of call drop rateGrade of HO success rateGrade of KPINetwork rank

LibyaLibya BSC1397.030.4796.452035.574095.57Excellent

Libya BSC1596.880.6393.312029.3425.3474.68Acceptable

Libya BSC1697.890.3796.812039.134099.13Excellent

Libya BSC2597.230.2596204040100.00Excellent

Judgment criteria for overseas GSM networks

ItemBenchmarkKPI benchmarkFull markCondition for full markCriteria for awarding marksCriteria fordeducting marksZero

Call setup success rate1292%2096.0%1 point is awarded for each increase of 0.5%, full mark 20.1 point is deducted for each decrease of 1%, lowest mark 0.80%

TCH Call drop rate (incl.HO)240.8%400.35%0.9 point is awarded for each decrease of 0.025%, full mark 40.1 point is deducted for each increase of 0.05%, lowest mark 0.2%

HO success rate2493%4096.0%1.34 points are awarded for each increase of 0.25%, full mark 40.1.5 points is deducted for each decrease of 0.5%, lowest mark 0.85%

Graduation of network performance evaluationUser fills in the white cells; content in other cells is automatically calculated.

RanksExcellentGoodAcceptableNo goodBad

Evaluationi criteria>=90