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Optimization Process (1)

Apr 06, 2018

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Adepegba Tomiwa
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    METROTEL WORKS Company Confidential 1

    OPTIMIZATION PROCESSOPTIMIZATION PROCESS

    IP data check.IP data check.

    Dump verification.Dump verification.

    KPIs monitoringKPIs monitoringAlarms checkAlarms check

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    Activity on the basis of checkActivity on the basis of check

    Raise CRF if any discrepancy in data.Raise CRF if any discrepancy in data.

    Send DT team in confirmation of AlarmSend DT team in confirmation of Alarm

    removal.removal. Physical verification report.Physical verification report.

    DT file analysis.DT file analysis.

    Start fine tuning of parameter.Start fine tuning of parameter.

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    KPIs to be monitorKPIs to be monitor

    SD BlockingSD Blocking

    SD DropSD Drop

    TCH BlockingTCH Blocking TCH AssignmentTCH Assignment

    TCH DropTCH Drop

    HOSRHOSR

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    Reasons for SD BlockingReasons for SD Blocking

    High Utilization of SD.High Utilization of SD.

    Signaling load at LAC boundary.Signaling load at LAC boundary.

    Time slot faulty.Time slot faulty. Site location ( Airport, etc).Site location ( Airport, etc).

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    Solutions for removal ofSolutions for removal of

    SD BlockingSD Blocking Check the No. of SDCCH channelCheck the No. of SDCCH channelAvailable, if less then increase SD channelAvailable, if less then increase SD channel

    taking care that there is

    no TCH Blocking.taking care that there is

    no TCH Blocking. Check LAC boundary, If location update isCheck LAC boundary, If location update is

    more then change the LAC of thatsite.more then change the LAC of thatsite.

    Use of Dynamic SDCCH (It is a BSCUse of Dynamic SDCCH (It is a BSCparameter and will be applied on wholeparameter and will be applied on wholeBTS).BTS).

    Hardware check / shift SD to new timeHardware check / shift SD to new time

    slotslot

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    Reasons of SD DropReasons of SD Drop Wrong Parameter Planning.Wrong Parameter Planning.

    Hardware Fault.Hardware Fault.

    External Interference.External Interference.

    OvershootingOvershooting

    High TCH utilizationHigh TCH utilization

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    Check for Wrong ParameterCheck for Wrong Parameter

    Planning.Planning. Check the BCCH Plan (C/I or C/A).Check the BCCH Plan (C/I or C/A).

    CoCo--BSIC & Co BCCH.BSIC & Co BCCH.

    LAC Planning.LAC Planning.

    If a cell is picking call from long distance, Check theIf a cell is picking call from long distance, Check thesample log according to TA (using MMR).sample log according to TA (using MMR).

    Cell orientation need to be define according to clutter.Cell orientation need to be define according to clutter.

    Check the Timer T 3101, Itshould be 3.5 sec.Check the Timer T 3101, Itshould be 3.5 sec.

    Check the Timer T 200 (N 200 in Ericsson system), ItCheck the Timer T 200 (N 200 in Ericsson system), Itshould be 780 ms.should be 780 ms.

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    Cure for SD Drops due to LowCure for SD Drops due to Low

    Signal StrengthSignal Strength If the drop call is due to low signal strength uplink, check theIf the drop call is due to low signal strength uplink, check thereceive path of this particular TRX. Check receiver sensitivity,receive path of this particular TRX. Check receiver sensitivity,VSWR, feeder connection and etc. Drops due to Low SignalVSWR, feeder connection and etc. Drops due to Low SignalStrengthStrength

    If the drop call reason is due to low signal strength downlink,If the drop call reason is due to low signal strength downlink,then, check the transmit path. Check CDU, RTX card, feederthen, check the transmit path. Check CDU, RTX card, feederand etc. Drops due to TCH Congestion.and etc. Drops due to TCH Congestion.

    It is also possible to have a high percentage of drops on SDCCHIt is also possible to have a high percentage of drops on SDCCHbut a low percentage of drops on TCH this could happen, forbut a low percentage of drops on TCH this could happen, forexample, if the SDCCH were put on the BCCH frequency, andexample, if the SDCCH were put on the BCCH frequency, andthe frequency plan were different for the BCCH than for nonthe frequency plan were different for the BCCH than for non--BCCH frequencies It is possible that the interference situationBCCH frequencies It is possible that the interference situationis worse on the BCCH, thereby causing relatively highis worse on the BCCH, thereby causing relatively highpercentage of drops on SDCCH compared to TCH, To reducepercentage of drops on SDCCH compared to TCH, To reducethis Shifting of SDCCH can also be done. This trick will be goodthis Shifting of SDCCH can also be done. This trick will be goodto reduce CNDROPS from the cell but ICM will not decrease tooto reduce CNDROPS from the cell but ICM will not decrease toomuch.much.

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    Interference in the TransmissionInterference in the Transmission

    frequenciesfrequencies Solution: Interference due to Microwave frequencies is not captured inSolution: Interference due to Microwave frequencies is not captured inthe KPIs , but if the drop due to other reasons are high than there isthe KPIs , but if the drop due to other reasons are high than there ispossibility of interference due to MW frequenciespossibility of interference due to MW frequenciesCounters availableCounters availablefor checking Transmission related problems (Counters for LapD can befor checking Transmission related problems (Counters for LapD can bemapped).mapped).

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    Reload of IDB/CF (for alarm 2AReload of IDB/CF (for alarm 2A--53)53)

    At time DXU software gets hanged which results in failureTCHAt time DXU software gets hanged which results in failureTCHassignmentassignment allocation. A reload of IDB at site or CF reloadallocation. A reload of IDB at site or CF reloadclears this software hangingAudit of Aclears this software hangingAudit of A--Ter Link.Ter Link.

    Now the reason why this impacts the SDCCH drops other isNow the reason why this impacts the SDCCH drops other isprobably because TRA pool congestion and Ater congestion willprobably because TRA pool congestion and Ater congestion willlead to subscribers making repeated attempts and no deviceslead to subscribers making repeated attempts and no devicesbeing available for them. One may think that this should leadbeing available for them. One may think that this should leadto SDCCH blocking more than SDCCH drops ,other reasons.to SDCCH blocking more than SDCCH drops ,other reasons.That is true but the thing of note here is that at the time ofThat is true but the thing of note here is that at the time ofsetup, on an average SDCCH (signaling) is there for a very lesssetup, on an average SDCCH (signaling) is there for a very lessduration (2/3 seconds MAX, as opposed to TCH drops) and theduration (2/3 seconds MAX, as opposed to TCH drops) and thecongestion in Ater and TRA devices will lead to furthercongestion in Ater and TRA devices will lead to furtherattempts and therefore drops which are pegged as Otherattempts and therefore drops which are pegged as Other

    reasons. Moreover where are these drops taking place?reasons. Moreover where are these drops taking place?--not atnot atthe BSC ,but at the Ater between the BSC/RBSC and thethe BSC ,but at the Ater between the BSC/RBSC and thetranscoder,so logically all the above will be known to the BSCtranscoder,so logically all the above will be known to the BSCas drops due to other reasonsas drops due to other reasons..

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    SD Drop due to excessive TASD Drop due to excessive TA

    Use RNO specially MRR for coverage confinements and to find badUse RNO specially MRR for coverage confinements and to find badBCCHs .it helps if Cell is over shooting or taking traffic fromBCCHs .it helps if Cell is over shooting or taking traffic fromTA>40,this can considered for coverage confinement or will beTA>40,this can considered for coverage confinement or will besuitable candidate for height reductions.suitable candidate for height reductions.

    Cell OvershootingCell Overshooting

    For ExampleFor Example-------- A% of Cell picking call from Distance YA% of Cell picking call from Distance Y------------And Meeting KPIs.And Meeting KPIs. (% of A should be >95)(% of A should be >95)

    (100(100--A%) of Cell picking call beyond Distance YA%) of Cell picking call beyond Distance Y--------Not Meeting KPIsNot Meeting KPIs

    Therefore Distance Y will confirms the Criteria of Distance ofTherefore Distance Y will confirms the Criteria of Distance ofOvershoot of a cell.Overshoot of a cell.

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    Hardware FaultHardware Fault

    Check Path Imbalance.Check Path Imbalance.

    VSWR of the Cell.VSWR of the Cell.

    Connector Connection.Connector Connection. TRX conditionTRX condition

    Mount position and Effective Tilt.Mount position and Effective Tilt.

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    External InterferenceExternal Interference

    May be due to CDMA orMay be due to CDMA orExternal/Unwanted resource.External/Unwanted resource.

    Check the ICM band value of thatsite.Check the ICM band value of thatsite. Itshould be ideally 0.Itshould be ideally 0.

    Use BPF (Band pass filter).Use BPF (Band pass filter).

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    TCH BlockingTCH Blocking

    Implement half rate or Dual rate.Implement half rate or Dual rate.

    If Dual rate implemented already thenIf Dual rate implemented already thenchange the value of FRL and FRU.change the value of FRL and FRU.

    Add another TRX.Add another TRX.

    If TRX addition not possible, try to shareIf TRX addition not possible, try to sharethe traffic of that cell with the neighboringthe traffic of that cell with the neighboring

    cell by changing tilt or orientation.cell by changing tilt or orientation.

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    TCH AssignmentTCH Assignment

    For improving assignment, remove TCHFor improving assignment, remove TCHBlocking.Blocking.

    Check TRX condition.Check TRX condition. Path Imbalance.Path Imbalance.

    VSWR.VSWR.

    Connection from CDU and TRX.Connection from CDU and TRX. Connector connection.Connector connection.

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    SeeSee

    TCH attempt=TCH Block+TCH Allocated.TCH attempt=TCH Block+TCH Allocated.

    TCH Allocated=TCH miss (may be block orTCH Allocated=TCH miss (may be block or

    SD Drop) +TCH Assigned.SD Drop) +TCH Assigned. It is not necessary that total TCH allocatedIt is not necessary that total TCH allocated

    will be assigned.will be assigned.

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    Reasons for TCH DropReasons for TCH Drop

    Wrong Parameter Planning.Wrong Parameter Planning.

    Hardware Fault.Hardware Fault.

    External Interference.External Interference.

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    Wrong Parameter Planning.Wrong Parameter Planning.

    Check the BCCH Plan (C/I or C/A).Check the BCCH Plan (C/I or C/A).

    CoCo--BSIC & Co BCCH.BSIC & Co BCCH.

    Check CoCheck Co--BCCH.BCCH.

    If a cell is picking call from long distance, Check theIf a cell is picking call from long distance, Check thesample log according to TA.sample log according to TA.

    Check the Timer T 100(RLT). Itshould be 20.Check the Timer T 100(RLT). Itshould be 20.

    Check the Neighbor Plan.Check the Neighbor Plan.

    Site Orientation and Tilt.Site Orientation and Tilt.

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    TCH Drop Reason, Low SS DL (%)TCH Drop Reason, Low SS DL (%)

    If the drop call reason is due to low signalIf the drop call reason is due to low signalstrength downlink, then, check the transmitstrength downlink, then, check the transmitpath. Check CDU, RTX card, feeder and etc.path. Check CDU, RTX card, feeder and etc.

    Drops due to TCH Congestion.Drops due to TCH Congestion. Check the proper coverage of the cell, may beCheck the proper coverage of the cell, may be

    far off village getting the week coverage. Avoidfar off village getting the week coverage. Avoidweek coverage area. Coverage of the cell shouldweek coverage area. Coverage of the cell shouldbe limited at the point where there is nobe limited at the point where there is nopopulation.population.

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    TCH Drop Reason, Low SS UL (%)TCH Drop Reason, Low SS UL (%)

    If the drop call is due to low signalIf the drop call is due to low signalstrength uplink, check the receive path ofstrength uplink, check the receive path ofthis particular TRX. Check receiverthis particular TRX. Check receiver

    sensitivity, VSWR, feeder connection andsensitivity, VSWR, feeder connection andetc. Drops due to Low Signal Strength.etc. Drops due to Low Signal Strength.

    Check whether main lobe of the cell is notCheck whether main lobe of the cell is not

    out of clutter, change the orientation.out of clutter, change the orientation. Use of TMA, while installing TMA itshouldUse of TMA, while installing TMA itshould

    be properly check whether the cabling ofbe properly check whether the cabling ofBiasInjector is done properly at BTS end.BiasInjector is done properly at BTS end.

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    Drop Reason, Bad Quality DL (%)Drop Reason, Bad Quality DL (%)

    Go for BCCH and TCH Plan check.Go for BCCH and TCH Plan check.

    Site covered areamay be the populatedSite covered areamay be the populated

    area issuffering for High C/I or C/A.area issuffering for High C/I or C/A. Check the Hopping plan.Check the Hopping plan.

    Check VSWR, Path imbalance.Check VSWR, Path imbalance.

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    Drop Reason, Bad Quality UL (%)Drop Reason, Bad Quality UL (%)

    In addition to above , please check theIn addition to above , please check theICM band condition.ICM band condition.

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    Drop Reason, Suddenly LostDrop Reason, Suddenly Lost

    Connections (%)Connections (%) if drops are only on one site, then go for a checkif drops are only on one site, then go for a check

    for that particular even attach with thatsite.for that particular even attach with thatsite. If drops are on all sites connected to a singleIf drops are on all sites connected to a single

    link, then check the slip or interference on thatlink, then check the slip or interference on thatAbis interface.Abis interface.

    If Drops are distributed on all site of the BSC,If Drops are distributed on all site of the BSC,then check the slips on Ater.then check the slips on Ater.

    Down Time of the cell.Down Time of the cell. TRX condition.TRX condition. BTS should not getting the temperature alarmBTS should not getting the temperature alarm

    continuously.continuously.

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    Drop Reason, Excessive TA (%)Drop Reason, Excessive TA (%)

    Proper tilting required considering all hotProper tilting required considering all hotspots are covered.spots are covered.

    Effective tiltshould be checkEffective tilt

    should be check

    Mount position should be check.Mount position should be check.

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    Drop Reason, Other (%)Drop Reason, Other (%)

    Check Path Imbalance.Check Path Imbalance.

    VSWR of the Cell.VSWR of the Cell.

    Connector Connection.Connector Connection. TRX conditionTRX condition

    Mount position or Effective Tilt.Mount position or Effective Tilt.

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    HOSRHOSR

    Neighbor Planning should be good.Neighbor Planning should be good. In city neighbor should be planned to 2In city neighbor should be planned to 2ndnd layer, But inlayer, But in

    new town try to restrict to 1new town try to restrict to 1stst layer.layer. If reversion rate is high, check the hardware condition,If reversion rate is high, check the hardware condition,

    quality and Congestion on target cell.quality and Congestion on target cell. If handover failure is due to low signal strength, changeIf handover failure is due to low signal strength, change

    the handover margin and also check the VSWR ofsourcethe handover margin and also check the VSWR ofsourceand target cell.and target cell.

    If handover failure is due to bad signal quality, check theIf handover failure is due to bad signal quality, check the

    C/A or C/I.In addition to thi

    splea

    se check the hardwareC/A or C/

    I.In addition to thi

    splea

    se check the hardwarefault of thatsite.fault of thatsite.

    If there is lot ofPingIf there is lot ofPing--pong handover in the cell avoidpong handover in the cell avoidoverlapping cell by tilting the cell.overlapping cell by tilting the cell.

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    Attention.Attention.

    IfIntra Handover failure is occurring, Check theIfIntra Handover failure is occurring, Check thehardware and Blocking of all the sec.hardware and Blocking of all the sec.

    Case ICase I-- If there isPath Imbalance in sec B, thenIf there isPath Imbalance in sec B, thenthere is possibility that there will be handoverthere is possibility that there will be handoverfailure from Afailure from A--B and CB and C--B. And there will beB. And there will bealso intra cell handover failure in sec Balso intra cell handover failure in sec Bwhenever call will be transfer to Faulty TRX.whenever call will be transfer to Faulty TRX.

    Case IICase II-- If there is Blocking in sec B, then thereIf there is Blocking in sec B, then there

    is

    poss

    ibility that there will be handover failureis

    poss

    ibility that there will be handover failurefrom Afrom A--B and CB and C--B.B. Please check CoPlease check Co--BSIC & CoBSIC & Co--BCCH.BCCH. And CoAnd Co--BCCH during Neighbor Planning.BCCH during Neighbor Planning.

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    Other Criterias Can be kept inOther Criterias Can be kept in

    mind.mind.

    MBC SynchronizationMBC Synchronization

    Comments : If the site is MBC than at times itComments : If the site is MBC than at times ithappens that MBC cabinet goes out ofsynchappens that MBC cabinet goes out ofsync

    bue to faulty ESB cable, thus TCHbue to faulty ESB cable, thus TCHassignmentassignment allocation on MBC doesn'tallocation on MBC doesn'thappen which results in high SD drops duehappen which results in high SD drops dueto other reasons.to other reasons.

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    SDCCH drop can be triggered during an AssignmentSDCCH drop can be triggered during an Assignment

    Failure alsoFailure also

    There are a few cases where an assignment failure, which isThere are a few cases where an assignment failure, which isindicated by the formula (1indicated by the formula (1 -- (TFCASSALL / TASSALL)), would(TFCASSALL / TASSALL)), wouldbe accompanied by an SDCCH drop (CNDROP).be accompanied by an SDCCH drop (CNDROP). CaseCase--I: if Congestion on TCH if there is congestion on TCH, theI: if Congestion on TCH if there is congestion on TCH, the

    mobile will eventually be cleared from the SDCCH channel (case:mobile will eventually be cleared from the SDCCH channel (case: NoNo

    Assignment Command, abnormal release, unspecifiedAssignment Command, abnormal release, unspecified), and so), and soCNDROP and CNRELCONG will be stepped.CNDROP and CNRELCONG will be stepped.

    CaseCase--II: If NO Establishments on TCH or Fails to return,II: If NO Establishments on TCH or Fails to return,--------AnotherAnothercase occurs when the mobile station never establishes itself on thecase occurs when the mobile station never establishes itself on theTCH and fails to return to SDCCH (Unsuccessful Assignment onTCH and fails to return to SDCCH (Unsuccessful Assignment onTCH, abnormal release unspecified). After a timeTCH, abnormal release unspecified). After a time--out in the BSC, theout in the BSC, thecall is released by sending a Channel Release (call is released by sending a Channel Release (cause: abnormalcause: abnormalrelease unspecifiedrelease unspecified).).

    CaseCase--III: if TCH Assignment failedIII: if TCH Assignment failed------Another case can occur whenAnother case can occur whenthe assignment to TCH failed, but the mobile succeeded to return tothe assignment to TCH failed, but the mobile succeeded to return tothe old SDCCH. After a timethe old SDCCH. After a time--out, the system disconnects the callout, the system disconnects the calland sends a Channel Release with the cause abnormal release,and sends a Channel Release with the cause abnormal release,unspecified.unspecified.

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    CBCH Impact on Data & SDCCH UtilizationCBCH Impact on Data & SDCCH Utilization

    Check for SDCCH Utilization, proper reCheck for SDCCH Utilization, proper re--dimensioning should be donedimensioning should be donefor effective SDCCH use, though it will be helpful for reducingfor effective SDCCH use, though it will be helpful for reducingSDCCH Congestion, if any but at the same time if SDCCH are gettingSDCCH Congestion, if any but at the same time if SDCCH are gettinghanged then you will not be short to SDCCHhanged then you will not be short to SDCCH

    If you use CBCH, change to SDCCH/8 config, since GPRS has moreIf you use CBCH, change to SDCCH/8 config, since GPRS has moresystem information to transmit over BCCH and it is advisable tosystem information to transmit over BCCH and it is advisable tokeep like this.keep like this.

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    High RACH FailuresHigh RACH Failures

    Other reasons look for Random access statistics, if there is a lot ofOther reasons look for Random access statistics, if there is a lot ofrandom access failures try to check hardware too. It includesrandom access failures try to check hardware too. It includesthorough hardware audit including CF Reloading, IDB Setting andthorough hardware audit including CF Reloading, IDB Setting andreloading, Software synchronization ,filter check etcreloading, Software synchronization ,filter check etc))

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    DTAP IssueDTAP Issue

    Solution : Check for Connection refused messages sent by MSCSolution : Check for Connection refused messages sent by MSC(before Setup message)(before Setup message)

    Comments : The losses due to DTAP issues may also be resultComments : The losses due to DTAP issues may also be resultof subscriber related issues like faulty handsetof subscriber related issues like faulty handset))

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    Alarms DescriptionAlarms Description

    For various alarms go though the attach Doc.

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    Internal BTS ConnectionInternal BTS Connection

    2206 2964

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    Some timers..Some timers..

    T3212T3212 ------Time between periodic update of MS. SET byTime between periodic update of MS. SET bythe MML command RLSBC. The value issent to the MSthe MML command RLSBC. The value issent to the MSin system information. The MS will do periodic update, ifin system information. The MS will do periodic update, ifit is residing in the same location area at a time intervalit is residing in the same location area at a time interval

    exceedingexceeding T3212T3212 . If the MS is roaming to a new. If the MS is roaming to a newlocation area, update will be done anyway and the timelocation area, update will be done anyway and the timeto next periodic update will start counting from zeroto next periodic update will start counting from zeroagain.again.

    T3101T3101 ------Guard time for Immediate Assign. Started asGuard time for Immediate Assign. Started as

    'IMM_ASS_CMD' issent to BTS and stopped by reception'IMM_ASS_CMD' issent to BTS and stopped by receptionof 'EST_IND' from BTS. The allocated channel will beof 'EST_IND' from BTS. The allocated channel will bereleased at timer expiry.released at timer expiry.

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    Ericsson Optimization ToolsEricsson Optimization Tools

    Winfoll.Winfoll.

    RNORNO----

    (NCS,FAS,MRR,MTR,CTR,RIR,ABAL,OMS,S(NCS,FAS,MRR,MTR,CTR,RIR,ABAL,OMS,STS etc).TS etc).

    BO (Business Object).BO (Business Object).

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    WinfollWinfoll

    It is online statusIt is online statustool, with the help oftool, with the help ofthis tool you canthis tool you can

    directly login to anydirectly login to anyBSC and check andBSC and check andchange the status ofchange the status ofany cell.any cell.

    Command use toCommand use toaccess the variousaccess the variousparameter are attachparameter are attachbelow.below.

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    RNORNO

    NCSNCS--Neighboring Cell SupportNeighboring Cell Support Neighboring Cell Support feature is to help the operator optimizeNeighboring Cell Support feature is to help the operator optimize

    neighboring cell lists in the network. This is done by collectingneighboring cell lists in the network. This is done by collectingdata recorded from measurement reports and handoverdata recorded from measurement reports and handoverstatistics. In the BSC, this is handled by the feature Active BAstatistics. In the BSC, this is handled by the feature Active BA--listlistRecording. Neighboring Cell Support is operated through theRecording. Neighboring Cell Support is operated through theOperation and Support System (OSS).Operation and Support System (OSS).

    This feature is load regulated, partly by the 3% rule, partly byThis feature is load regulated, partly by the 3% rule, partly bylowlow--priority Base Level Load Control. The total load from thispriority Base Level Load Control. The total load from thisfeature should not exceed 6% when there is a shortage of CPfeature should not exceed 6% when there is a shortage of CPcapacity. Load peaks may occur at BAcapacity. Load peaks may occur at BA--list reconfiguration, whenlist reconfiguration, whentest frequencies in BAtest frequencies in BA--list are changed. In order to decrease CPlist are changed. In order to decrease CPload from this feature, the number of cells can be reduced.load from this feature, the number of cells can be reduced.

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    ContinueContinue

    FASFAS-- Frequency Allocation SupportFrequency Allocation Support

    The purpose of Frequency Allocation SupportThe purpose of Frequency Allocation Support(FAS) is to facilitate the frequency planning(FAS) is to facilitate the frequency planning

    for the operator. The uplink interference levelfor the operator. The uplink interference levelfor specified frequencies and cells arefor specified frequencies and cells arerecorded by the feature Radio Interferencerecorded by the feature Radio InterferenceRecording. After a recording is completed theRecording. After a recording is completed theresults can be presented to the operator viaresults can be presented to the operator viathe OSS user interface.the OSS user interface.

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    ContinueContinue

    MRR: Measurement Result RecordingMRR: Measurement Result Recording MRR is an OSS tool for measuring and analyzing radioMRR is an OSS tool for measuring and analyzing radio

    characteristics. The feature makes it possible to extractcharacteristics. The feature makes it possible to extractinformation from the measurement results that are sent from theinformation from the measurement results that are sent from thebase stations to the BSC. This feature is load regulated, partlybase stations to the BSC. This feature is load regulated, partly

    by the 3% rule, partly by lowby the 3% rule, partly by low--priority Base Level Load Control.priority Base Level Load Control.During the recording, the collection and accumulation ofDuring the recording, the collection and accumulation ofmeasurement data is done in the TRH and the impact on CP loadmeasurement data is done in the TRH and the impact on CP loadis therefore limited. In live tests no extra basic load or loadis therefore limited. In live tests no extra basic load or loadpeaks have been observed from this feature. Some CP loadpeaks have been observed from this feature. Some CP loadincrease is however likely at activation and deactivation of theincrease is however likely at activation and deactivation of thefeature.feature.

    Although actionsshould not be needed to reduce CP load fromAlthough actionsshould not be needed to reduce CP load fromthis feature, the amount of data to collect (number of cells) canthis feature, the amount of data to collect (number of cells) canbe limited to minimize load if desired.be limited to minimize load if desired.

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    BO (Business Object).BO (Business Object).

    With the help of this tool, we can generateWith the help of this tool, we can generatethe stats of the site before four hour ofthe stats of the site before four hour offetching.fetching.

    We can generate the stats Cell wise ,orWe can generate the stats Cell wise ,orBSC Wise hourly or for whole day.BSC Wise hourly or for whole day.

    BO generate the KPIs only with otherBO generate the KPIs only with otherrelated counters.related counters.

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    ConcludingConcluding

    Optimization start at very basic level, soOptimization start at very basic level, sothe ground things need to be check.the ground things need to be check.

    Drive test to be done with properDrive te

    st to be done with properguidance of Optimization Engg.guidance of Optimization Engg.

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    ThanksThanks

    Any further valuable addition will beAny further valuable addition will beappreciated..appreciated..