manual - nqdi - data call analysis description

8/17/2019 Manual - NQDI - Data Call Analysis Description

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SwissQual®... NetQualData Call Analysis DescriptionManual

M a n u a l

NQDI ─ 01

T e s t & M e a s u r e m e n t


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ContentsSwissQual ... NetQual

3Manual NQDI ─ 01

Contents

1 Introduction............................................................................................ 5

2 Call Analysis Script................................................................................6

2.1 Session Analysis Settings........................................................................................... 6

2.1.1 Options Tab.....................................................................................................................7

2.2 Threshold Value Options..............................................................................................7

2.2.1 Speech Quality................................................................................................................7

2.2.2 Signal Strength and Quality............................................................................................ 7

2.2.3 GSM Tab.........................................................................................................................8

2.2.4 UMTS Tab.......................................................................................................................9

2.2.5 CDMA Tab.................................................................................................................... 10

2.3 Recalculating Values.................................................................................................. 10

3 DataCallAnalysis Table........................................................................12

4 Code and CodeDescription Fields......................................................17

4.1 Data Call Code Description........................................................................................ 17

5 Generating a Data Call Analysis Report............................................ 22


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ContentsSwissQual ... NetQual

4Manual NQDI ─ 01


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IntroductionSwissQual ... NetQual

5Manual NQDI ─ 01

1 Introduction

This document describes the Data Call Analysis script that you can run in the NetworkQuality Data Investigator (NQDI) post-processing application. This script runs several

other SQL scripts to analyse data session parameters, such as message sequence

and radio coverage, in the measurement files that are in your database. At the end of

the process, the Data Call Analysis script fills a database table that you can query to

produce the Data Call Analysis Report. The Data Call Analysis script analyses UMTS

and GPRS data calls in detail.

The DataCallAnalysis feature consists of the following parts:

● "DataCallAnalysis": Database table that contains the results

● "spDataCallAnalysis": Stored procedure that scans a call session and collects the

relevant information

This procedure must run once for each call

● " spDataCallAnalysisCode": Stored procedure that calculates the Data Call Analy-

sis Code for each data session

● This procedure uses the results that the "spDataCallAnalysis" stored procedure

returns.

● Settings dialog box in NQDI: To access the "Settings" dialog box, click "Data Call

Analysis" on the "Configuration" menu.

● DataCallAnalysis.XLS report file in Excel format: To generate this report, click

"Reports" on the "Tools" menu, point to "Internet", and then click "DataCallAnaly-

sis".


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Call Analysis ScriptSwissQual ... NetQual

6Manual NQDI ─ 01

2 Call Analysis Script

You can run the Call Analysis script manually in NQDI or you can specify that NQDIautomatically runs the script after you import a measurement file.

► To manually run the "Call Analysis" script in NQDI, click "Session Analysis" on the

"Configuration" menu, and then click "Recalculate" on the "Options" tab.

► To specify that NQDI runs the script automatically after you import a measurement

file, click "Session Analysis" on the "Configuration" menu, and then click "Run Call

Analysis script automatically after import".

The Call Analysis script takes 10 to 15 seconds to process each call.

2.1 Session Analysis Settings

► To specify the settings for the Call Analysis script in NQDI, click "Session Analysis"

on the "Configuration" menu.

Fig. 2-1: Options tab in Settings dialog box for the Call Analysis script

If you want to manually run the script with your new settings, click "Recalculate" on any

tab in the "Session Analysis Settings" dialog box.

Session Analysis Settings


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7Manual NQDI ─ 01

2.1.1 Options Tab

Table 2-1: Description of settings on the Options tab for the Call Analysis feature

Setting Description

"Run Session Analysis script automatically

after import"

Runs the "Session Analysis Process" script automatically after NQDI imports a

measurement file.

After the script runs the "sqCallAnalysis" stored procedure on each new call in the

database, the "sqCallAnalysisCode" procedure calculates the Code and the Code

Description. This process can take up to 15 seconds to complete for each call.

"Copy the code description to the session

comment field"

Automatically copies the code description text to the comment field of a session.

"Copy roaming info to the description field" Automatically copies the roaming info for a call to the description field of the call.

2.2 Threshold Value Options

Diversity measures two types of threshold values, namely coverage values speech

quality values.

2.2.1 Speech Quality

Speech threshold values use the Mean Opinion Score (MOS) scale, which ranges from

1 to 5. For example, if a speech test yields an LQ value that is below the set threshold

value, the call contains a bad sample. If the percentage of bad samples exceeds the

threshold value that you set in NQDI, the call is a Bad Call. The default value for a bad

sample is 2.5 on the MOS scale and the percentage of bad samples that result in a

bad call is 15%.

2.2.2 Signal Strength and Quality

Diversity evaluates signal strength and signal quality for GSM, UMTS, and CDMA tech-

nologies, each of which has different signal indicators.

This evaluation is only performed on failed calls and dropped calls.

If the measurements exceed or fall below the threshold values, the description of the

code is qualified as "High" or "Low" respectively, for example, "High RxQual" or "Low

RxLev".

Threshold Value Options


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8Manual NQDI ─ 01

2.2.3 GSM Tab

Fig. 2-2: GSM tab in Settings dialog box for the Call Analysis script

Table 2-2: Description of settings on the GSM tab for the Call Analysis feature

Setting Description

"RxQual Threshold (average of the last 8 RxQualSub values)" If the call analysis script returns a value that is higher than the

threshold value in this box, the call has a "High" RxQual level.

The default value is 5.0

"RxLev Threshold in dBm (average of the last 8 RxLevSub or

BCCH RxLev values)"

If the call analysis script returns a value that is less than the

threshold value in this box, the call has a "Low" RxLev value.The default value is -95 dBm.



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9Manual NQDI ─ 01

2.2.4 UMTS Tab

Fig. 2-3: UMTS tab in Settings dialog box for the Call Analysis script

Table 2-3: Description of settings on the GSM tab for the Call Analysis feature

Setting Description

"BLER Threshold (average of the last 4 BLER values)" If the call analysis script returns that is less than the threshold

value in this box, the call has a "High" BLER value. The default

value is 30.0

"Total Ec/Io Threshold in dB (average of the last 8 aggregated

Ec/Io values)"


threshold value in this box, the call has a "Low" Total Ec/Iovalue. The default value is -10 dB.

"UE Rx Power Threshold in dBm (average of the last 8 UE Rx

Power values)"


threshold value in this box, the call has a "Low" UE Rx Power

value. The default value is -95 dBm.



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10Manual NQDI ─ 01

2.2.5 CDMA Tab

Fig. 2-4: The dialog for CDMA related thresholds

Table 2-4: Description of settings on the CDMA tab for the Call Analysis feature

Setting Description

"FER Threshold (average of the last 4 BLER values)" If the call analysis script returns a value that is less than the

threshold value in this box, the call has a "High" FER value. The

default value is 30.0

"Total Ec/Io Threshold in dB (average of the last 8 aggregated

Ec/Io values)"


threshold value in this box, the call has a "Low" Total Ec/Iovalue. The default value is -10 dB.

"AGC Threshold in dBm (average of the last 8 UE Rx Power val-

ues)"


threshold value in the box, the call has a "Low" AGC value. The

default value is -95 dBm

2.3 Recalculating Values

When you change the threshold values, you do not need to completely rescan each

call. Instead, you can recalculate the values from within the "Session Analysis Set-

tings" dialog box.

► To recalculate the values, click "Recalculate" on any of the tabs in the "Session

Analysis Settings" dialog box, and then click "Yes".

Recalculating Values


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Fig. 2-5: Recalculate button in CallAnalysis Settings dialog box

Note:

● You cannot run the call analysis script during an import procedure

● You cannot exit NQDI while you run the Call Analysis script

● You cannot import data while you run the Call Analysis script

● You cannot generate a Call Analysis report while you run the Call Analysis

script

Recalculating Values


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DataCallAnalysis TableSwissQual ... NetQual


3 DataCallAnalysis Table

This section describes the fields in the DataCallAnalysis table. Each row in this tablecorresponds to one data session. The "sqDataCallAnalysis" stored procedure calcu-

lates most of the parameters while the "sqCallAnalysisCode" calculates the "Code" and

"CodeDescription" fields.

Table 3-1: Description of CallAnalysis Table

Field Name Type Description

sessionId int Link to Sessions.sessionId

FileId int Link to FileList.FileId

NetworkId int Link to NetworkInfo.NetworkId

PosId int Link to Positions.PosId

Status Varchar(50) ‘Completed’, ‘Failed’, ‘Dropped’ or ‘System Release’

valid smallint Flag that indicates the validity of the session

technology varchar (50) Technologies that the call uses

band varchar (50) Frequency band

Roaming varchar (50) ‘Yes’ for roaming ‘No’ for not roaming

NetIds int Number of different NetIDs during the session

Duration int Time between the ‘Dial’ marker and DisconnectTimeStamp end

StartTimeStamp datetime Time stamp at the start of the data session

DialTimeStamp datetime Time stamp of the 'DialUp Dial' marker

ConnectTimeStamp datetime Timestamp of the ‘DialUp Connected‘marker

DisconnectTimeStamp datetime Timestamp of the ‘DialUp Hangup’ or ‘DialUp Dropped’ markers

EndTimeStamp datetime Time stamp at the end of the data session

SetupTime int Amount of time between StartTimeStamp and ConnectTimeStamp

ConnectTime Int Amount of time between ConnectTimeStamp and DisconnectTimeStamp

datacallDuration int N/A

StartTechnology varchar (50) Technology at the beginning of the data call

EndTechnology varchar (50) Technology at the end of the data call

Layer3Messages int 0 for no layer 3 messages in entire session or 1 for at least one message

SgnChnReq datetime Timestamp of the first Channel Request

SgnChnAss datetime Timestamp of the first IMM_ASS message

avgRxQual real N/A

avgRxLev real Average RxLevSub of the last 8 Layer1 messages before the end of the call

avgTA real N/A


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avgMsTxPwr real Average TxPwr of the last 8 Layer1 messages before the end of the call

AvgBCCHRxLev real Average BCCH_RxLev of the last 8 Layer1 messages before the end the call

numOfRadioValues int Number of averaged values, which are equal or less than 8

LastRadioTimeStamp datetime Timestamp of the last Layer1 message in this session

avgScanRxLev real N/A

numOfScanValues real N/A

lastScanTimeStamp datetime N/A

numBetterNeighbors int N/A

numBetterScannedGSM int N/A

NumDeactivationAccept int Number of PDP Context Deactivation Accept messages in the session

NumDeactivationRequest int Number of PDP Context Deactivation Request messages in the session

NumSMStatus int Number of SM Status messages in the session

NumPDPContextaccept int Number of PDP Context Activation Accept messages in the session

NumPDPContextReject int Number of PDP Context Activation Reject messages in the session

NumPDPContextRequest int Number of PDP Context Activation Request messages in the session

NumServiceAccept int Number of Service Accept messages in the session

NumServiceReject int Number of Service Reject messages in the session

NumServiceRequest int Number of Service Request messages in the session

NumAttachComplete int Number of Attach Complete messages in the session

NumAttachAccept int Number of Attach Accept messages in the session

NumAttachReject int Number of Attach Reject messages in the session

NumAttachRequest int Number of Attach Request messages in the session

NumDetachAccept int Number of Detach Accept messages in the session

NumDetachRequest int Number of Detach Request messages in the session

numLURequest int Number of LU Request messages in the session

numLUAccept int Number of LU Accept messages in the session

numLUReject int Number of LU Reject messages in the session

numRARequest int Number of RA Request messages in the session

numRAAccept int Number of RA Accept messages in the session

numRAComplete int Number of RA Complete messages in the session

numChnReq int Number of Channel Requests in IMM_ASS messages that have a correspond-

ing random code.

numImmASS int Number of IMM_ASS in the session

numImmAssRej int Number of IMM_ASS_REJ in the session


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numChnRelCallSetup int N/A

numChnRel int N/A

PDPDeactDirection Varchar Direction of the PDP Deactivation Request message

PDPDeactCause Varchar Cause of the PDP Deactivation Request

PDPActRejDirection Varchar Direction of the PDP Activation Reject message

PDPActRejCause Varchar Cause of the PDP Activation Reject message

SMStatusDirection Varchar Direction of the SMStatus message

SMStatusCause Varchar Cause of the SMStatus message

DetachDirection Varchar Direction of the Detach Request message

DetachCause Varchar Cause of the Detach Request message

RARejectDirection Varchar Direction of the Routing Area Reject Message

RARejectCause Varchar Cause of the Routing Area Reject message

AttachRejectDirection Varchar Direction of the Attach Reject message

AttachRejectCause Varchar Cause of the Attach Reject message

AttachTestFailed int Number of failed attach tests in the session

lastIRATChange datetime Timestamp of the last inter-system change

numDCCH2GTrial int N/A

numDCCH2GSuccess int N/A

numTCHTrial int N/A

numTCHSuccess int N/A

code Varchar(255) For more information, see the "Error! Reference source not found." section on

page Error! Bookmark not defined..

codeDescription Varchar For more information, see the "Error! Reference source not found." section on

page Error! Bookmark not defined..

noL3Duration N/A

NoService Smallint N/A

Initializing smallint N/A

FailedRegistration int N/A

CRRandomCode Char(2) N/A

RRCConnReqTimeStamp datetime N/A

RRCConnSetupTimeS-

tamp

datetime N/A

numMMTrial int N/A

numMMSuccess int N/A

avgBLER Real Average BLER of the last 4 messages before the end of the call


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avgTotEcIo real Average aggregated Ec/Io of the last 8 messages before the end of the call

avgUETxPwr real Average UE TxPower of the last 8 messages before the end of the call

avgUERxPwr real Average UE RxPower of the last 8 messages before the end of the call

numOfWCDMARadioVal-

ues

int Number of WCDMAAGC values

LastWCDMARadioTimeS-

tamp

datetime Timestamp of the last WCDMAAGC message

numBetterMonitored int N/A

numBetterDetected int N/A

numBetterScannedUMTS int N/A

RRCConnReqforDataCall int Number of RRCConnection requests that have ‘originatingInteractiveCall’ asthe establishment cause

numRRCConnSetupCom-

plete

int Number of RRConnectionSetupCompletes

numRRCConnReq int Number of RRCConnectionRequest messages in the session

numRRCConnSetup int Number of RRCConnectionSetup messages in the session

numRRCConnRej int Number of RRCConnectionReject messages in the session

numRBSetup int Number of RadioBearerSetup messages in the session

numRBSetupCmpl int Number of RadioBearerSetup Complete messages in the session

numRBSetupFail int Number of RadioBearerSetupFailure messages in the session

numRRCConnRel int N/A

numRABTrial Int N/A

numRABSuccess Int N/A

LastUMTSCause Varchar(100) N/A

numGMMMessages Int N/A

numSMSMessages Int N/A

numMMMessages int N/A

avgCDMAFER real Average FER of the last 10 seconds before the end of the connection

avgCDMATotEcIo real Average aggregated Ec/Io of the last 8 messages before the end the call

avgCDMATxPwr real Average TxPower of the last 8 messages before the end the call

avgCDMAAGC real Average AGC of the last 8 messages before the end the call

numOfCDMARadioValues int Number of FingerInfo values

LastCDMARadioTimeS-

tamp

datetime Timestamp of the last FingerInfo message

numCDMAOriginationMsg int N/A

numCDMAServiceConnect int N/A


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numCDMAServiceCon-

nectCmpl

int N/A

numCDMAChnAssMsg int N/A

numCDMAInitState int N/A

numCDMAOriginationState int N/A

numCDMAPageRespon-

seState

int N/A

numCDMARegistration-

State

int N/A

numCDMAAuthentication-

State

int N/A

numCDMAWaitForOrder-State

int N/A

numCDMAWaitForAnswer-

State

int N/A

numCDMAConversation-

State

int N/A

numCDMAReleaseOrder int N/A


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Code and CodeDescription FieldsSwissQual ... NetQual


4 Code and CodeDescription Fields

The "sqDataCallAnalysisCode" stored procedure uses the values in the data callAnaly-sis table to calculate the data call analysis code and the data call analysis code

description. The code field uses the D3.01 format where:

● D: Shortcut for ‘Data Call Code’

● First number: Call status indication

– (1 = Completed, 2 = Dropped, 3 = Failed, 9 = others)

● Second number: Subcode that describes more details

4.1 Data Call Code Description

The codeDescription files decode the Code files into text.

Table 4-1: Description of Call Codes

Priority Code Code Description Description

Configuration calls can configure, start, or

stop a scenario. These calls are not taken

into account and by the analysis and are

not in the Report

D0.01 System Release The data session has been ended prematurely by the

system

Completed session

The criteria for a completed session are a

successful dial-up and successful termina-

tion

D1.00 Completed (PDP Deactivation Cause) The session ended regularly with a PDP context deacti-

vation

D1.99 Completed, others

Dropped Sessions

The criteria for a completed session are:

successful Dialup but no correct termina-

tion

D2.02 Dropped, SM Status Message Received(SM Status Cause)

Dropped data session during which an SM Status mes-sage from the network occurrs but without a PDP con-

text deactivation. (NumSMStatus > 0 AND SMStatusDir-

ection = ‘D’)

D2.03 Dropped, SM Status Message sent (SM

Status Cause)

Dropped data session during which an SM Status mes-

sage from the network occurrs but without a PDP con-

text deactivation. (NumSMStatus > 0 AND SMStatusDir-

ection = ‘U’)

D2.05 Dropped, No Service/Scanning Dropped session during which the phone had no service

or was scanning (NoService > 0 OR Initializing > 0)

D2.06 Dropped, Last RA Update Successful Dropped session in which the last Routing Area update

was successful (NumRAComplete > 0)

Data Call Code Description


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D2.11 Dropped, PDP Context Deactivation

Request by Network (PDP Deactivation

Cause)

Dropped data session during which the PDP context

deactivation is requested by the network (NumDeactiva-

tionRequest>0 and PDPDeactDirection = ‚D‘)

D2.12 Dropped, PDP Context Deactivation

Request by Device (PDP Deactivation

Cause)

Dropped data session during which the PDP context

deactivation was requested by the device (NumDeacti-

vationRequest>0 and PDPDeactDirection = ‚U‘)

D2.20 Dropped, No Progress after PDP Context

accept

Dropped data session in which no progress occurs after

PDP Context activation accept (NumPDPContextaccept

> 0)

D2.21 Dropped, PDP Context Activation Rejec-

ted (PDP Rejection Cause)

Dropped data session during which the PDP Context

Activation Request was rejected (NumPDPContextRe-

ject > 0)

D2.22 Dropped, PDP Context Activation Failed Dropped data session during which the PDP Context

activation failed (NumPDPContextRequest > 0)

D2.30 Dropped, No Progress After Service

Accept


Service Accept (NumServiceAccept > 0)

D2.31 Dropped, Service Rejected Dropped data session during which the Service Request

is rejected (NumServiceReject > 0)

D2.32 Dropped, Service Request failed Dropped data session during the Service Request is not

answered (NumServiceRequest > 0)

D2.38 Dropped, Detach requested by the phone Dropped data session during which the phone reques-

ted a detach (NumDetachRequest > 0 and DetachDirec-

tion = 'U')

D2.39 Dropped, Detach requested by the net-

work (Detach Cause)

Dropped data session during which the network reques-

ted to detach (NumDetachRequest > 0 and DetachDir-ection = 'D')

D2.40 Dropped, Routing Area Update Rejected

(RA Rejection Cause)

Dropped data session during which Routing Area

Update rejection occurs (NumRAReject > 0)

D2.41 Dropped, No Progress after Routing Area

Update Complete


a successful Routing Area Update (NumRAComplete >

0)

D2.50 Dropped, No Progress After DCCH Setup Dropped data session during which a signaling channel

was set up but the call did not proceed (numRRCConn-

SetupComplete + numImmASS > 0)

D2.60 Dropped, Low RxLev Dropped session in which the last Rxlevel measure-

ments was below the configured threshold (avgRxLev


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D2.98 Dropped, No Layer 3 Messages If Layer3Messages = 0, then layer 3 messages have not

been received during the entire session

D2.99 Dropped, others

Failed Sessions. The criterions for a com-

pleted session are: unsuccessful Dialup

D3.02 Failed, SM Status Message Received (SM

Status Cause)

Failed data session during which an SM Status mes-

sage from the network occurred but no PDP context

deactivation. (NumSMStatus > 0 AND SMStatusDirec-

tion = ‘D’)

D3.03 Failed, SM Status Message sent (SM Sta-

tus Cause)

Failed data session during which an SM Status mes-

sage from the network occurs but no PDP context deac-

tivation. (NumSMStatus > 0 AND SMStatusDirection =

‘U’)

D3.10 Failed, PDP Context Deactivation Requestby Network (PDP Deactivation Cause)

Failed data session during which the PDP context deac-tivation is requested by the network (NumDeactivation-

Request>0 and PDPDeactDirection = ‚D‘)

D3.11 Failed, PDP Context Deactivation Request

by Device (PDP Deactivation Cause)

Failed data session during which the PDP context deac-

tivation is requested by the device (NumDeactivationRe-

quest>0 and PDPDeactDirection = ‚U‘)

D3.20 Failed, No Progress after PDP Context

accept

Failed data session during which no progress occurs

after PDP Context activation accept (NumPDPContex-

taccept > 0)

D3.21 Failed, PDP Context Activation Rejected

(PDP Rejection Cause)

Failed data session during which the PDP Context Acti-

vation Request is rejected (NumPDPContextReject > 0)

D3.22 Failed, PDP Context Activation notanswered

Failed data session during which the PDP Context acti-vation fails (NumPDPContextRequest > 0)

D3.30 Failed, No Progress After Service Accept Failed data session in which no progress occurs after

Service Accept (NumServiceAccept > 0)

D3.31 Failed, Service Rejected Failed data session during which the Service Request is

rejected (NumServiceReject > 0)

D3.32 Failed, Service Request failed Failed data session during which the Service Request is

not answered (NumServiceRequest > 0)

D3.33 Failed, RRCConnection for Data Call not

established

Failed data session during which a signaling connection

cannot be established (RRCConnReqforDataCall = 1

and numRRCConnSetupComplete = 0)

D3.34 Failed, No Progress After DialUp Failed data session in which no progress occurs after aDialUp attempt (NumAttachComplete > 0 and DialTi-

meStamp is not NULL)

D3.38 Failed, Detach requested by the phone Failed data session during which the phone requests a

detach (NumDetachRequest > 0 and DetachDirection =

‘U’)

D3.39 Failed, Detach requested by the network

(Detach Cause)

Failed data session during which the network requests

to detach (NumDetachRequest > 0 and DetachDirection

= ‘D’)

D3.40 Failed, Routing Area Update Rejected (RA

Rejection Cause)

Failed data session during which a Routing Area Update

rejection occurs (NumRAReject > 0)

Data Call Code Description


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D3.41 Failed, No Progress after Routing Area

Update Complete

Failed data session during which no progress occurs

after a successful Routing Area Update (NumRACom-

plete > 0)

D3.50 Failed, No Progress after Attach Complete Failed data session during which no progress occurs

after Attach Complete (NumAttachComplete > 0)

D3.51 Failed, Attach not completed Failed data session in which the attach procedure does

not complete (NumAttachAccept > 0 and NumAttach-

Complete = 0)

D3.52 Failed, Attach Reject (Attach Rejection

Cause)

Failed data session during which the attach request is

rejected (NumAttachReject > 0)

D3.53 Failed, Attach Request not answered Failed data session during which the Attach request is

not answered (NumAttachRequest > 0)

D3.60 Failed, No Progress after DCCH Setup Failed data session in which no progress occurs after

DCCH setup (numRRCConnSetupComplete + numIm-mASS > 0)

D3.61 Failed, DCCH setup not completed Failed data session in which the DCCH setup is not suc-

cessful (numRRCConnSetup > 0)

D3.62 Failed, DCCH setup Rejected Failed data session in which the DCCH setup request is

rejected (numRRCConnRej + numImmAssRej > 0)

D3.64 Failed, No Answer to DCCH Request Fai led data session during which the DCCH request is

not answered (numRRCConnReq + numChnReq > 0)

D3.70 Failed, Low RxLev Failed session in which the last Rxlevel measurements

is below the configured threshold (avgRxLev


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Low RxLev Failed call in which the average of the last 8 RxLev mes-

sages is less then or equal to the threshold value

(avgRxLev


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Generating a Data Call Analysis ReportSwissQual ... NetQual


5 Generating a Data Call Analysis Report

After you run the analysis script, you can generate the DataCallAnalysis.XLSreport file in Excel format. The report groups, the calls according to the "Operator",

"Status", and "Code Description" fields. If you want, you can use the "Technology" field

to further distinguish between the different technologies.

► To generate the report file, click "Reports" on the "Tools" menu, point to "Internet",

and then click "Session Analysis".

Fig. 5-1: Data Call Analysis Report Example

manual - nqdi - data call analysis description

Documents