CAIT Drive Test Tool

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ISSUEISSUE

ORG001605 CAIT Drive Test ToolORG001605 CAIT Drive Test ToolORG001605 CAIT Drive Test ToolORG001605 CAIT Drive Test Tool

1.01.0

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Security Level: Internal

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Objective Objective

Understand the basic functions of CAIT drive test

software

Master the installation method of CAIT software

Master the configuration of CAIT software

Perform drive test with CAIT software

Understand the background analysis tool of CAIT

software

After this course, you will be able to：



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Course ContentsCourse Contents

Chapter 1 Introduction to CAIT

Chapter 2 Installation of CAIT

Chapter 3 Configuration of CAIT

Chapter 4 DT with CAIT

Chapter 5 Introduction to Background

Processing Method



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CAIT （ CDMA Air Interface Tester ） CAIT （ CDMA Air Interface Tester ）

CDMA Air Interface Tester (CAIT) is a tool that can test and analyze

the information of MS.

It can be used to observe, collect and analyze the MS status,

network parameters and messages. It can run on a PC and can be

connected to the CDMA MS through serial port, dual-serial-port card

or USB port. CAIT provides the follow functions:

Assessing network conditions

Statistics of call performance

Recording air interface message

Obtaining the location information from GPS

Assessing the performance of air interface

Um



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System configuration requirementsSystem configuration requirements

CPU: Faster than P266MHz

Memory: More than 64M

OS: Win95/98/NT4.0/XP/2000

Accessories :CDMA MS , test data cable, hardware dongle, GPS

CAIT can communicate with the COM interface at the rate of 19.2kbps,

38.4kbps, 57.6kbps, 115.2kbps respectively and supports MS based

on Qualcomm chip or software. Unlike other drive test tools, it does not

need to select specific MS types.



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Typical Indexes of Voice TestTypical Indexes of Voice Test

Call setup success ratio>=95%

Call drop ratio<=2%

SHO success ratio 98％ HHO success ratio 80％ FER<=1%

Ec/Io>=-12dB

Tx_power<=0dBm

Rx_level>=75dBm



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Indexes of Packet Data TestIndexes of Packet Data Test

FER <5%

Throughput

Maximum and Minimum Throughput

Packet Retries

Delay

Connection performance

Connection Availability

Connection speed



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Chapter 2 Installing CAIT




Processing Method



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Installing CAIT-1Installing CAIT-1

Enter the SETUP directory of the CAIT installation directory. Double-click the setup.exe file to pop up the installation interface.



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Installing CAIT-2Installing CAIT-2

During the installation, it is required to acknowledge the registration agreement

and select the installation directory and installation type. If the CAIT software has

already been installed, CAIT will prompt to delete the software and then re-install it.



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Installing CAIT SoftwareInstalling CAIT Software

After the installed CAIT is entered, sometimes CAIT (Expired) will be prompted and the software cannot work normally. This is because each CAIT dongle is oriented to a specific version.



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Processing Method



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Configuring Phone-1Configuring Phone-1

After the installed CAIT is entered, it is required t

o configure the connection of hardware devices.

The MS connected should be configured first. C

lick OPTIONS→CONFIGURE CAIT in the menu

or the CONFIGURE CAIT icon in the tool bar. S

elect the PHONE page to view relevant options

of MS configurations.



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Configuring Phone-2Configuring Phone-2

Com port: It means the port on the computer used to connect MS. It depends on the physical connections.

Baud rates to search: Generally it is set to 115200. The value shall be the same as the rate set in the MS. It should also be the same as the rate set by the “SET MOBILE BAUD RATE” under the CAIT OPTIONS menu.

FORCE BAUD RATE: Generally it is set to “DO NOT FORCE”. Thus, the CAIT will automatically select a rate that can be used to communicate with the MS. Or a specific rate can be selected for communication to reduce the time for the CAIT to search the MS.

PHONE LINK ALARM: It is used to set whether alarm windows prompt and voice prompt will be generated when connection fault occurs during the test of the mobile phone.



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Configuring GPSConfiguring GPS

To collect GPS information, select

GPS SETTING page and then

select USE GPS check box. Thus,

the test path can be displayed

during background analysis and

such information as the movement

speed of the mobile phone can be

viewed during the test. GPS

ALARM and DISPLAY LATITUDE

AND LONGITUDE are respectively

used to set the alarm prompt and

GPS display modes.



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Configuring Mobile Baud RateConfiguring Mobile Baud Rate

Set the communication rate between the mobile and CAIT (Set Mobile Baud Rate).

The value of this option shall be with the same as the mobile phone rate set in CONFIGURE CAIT. It shall be set according to the actual situation.



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Configuring RetrieverConfiguring Retriever

If RETRIEVER need be used during the test, th

e setting is different from that of an ordinary mo

bile phone. RETRIEVER is used to retrieve vari

ous PNs. To use the RETRIEVE to retrieve the

pilot, click OPTIONS→CONFIGURE RETRIEV

ER in the menu to pop up the RETRIEVER SC

REEN window.



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This drop-down list lets you select whether to use oroverride the Over-the-Air PILOT_INC valuecontained in the IS-95A or J-STD-008 ExtendedNeighbor List. Select Normal - OTA to use this value.To override it and use instead the increment valuespecified in the Pilot Increment Value box, selectOverridden. Generally, “Normal-OTA” is selected.

On: Enables the Retriever mode.Off: Retriever functionality not used.

When the Pilot Increment Mode value is set toOverridden, this field lets you specify the INCRparameter setting of the Retriever phone. Possiblevalues are 1 through 15.

This box lets you to set the size of search windows.Select 64 * Pilot_Increment to use the default modeof Incr*64 (WIN_SIZ=0). Select Normal - OTA Valueto use the WinN mode (WIN_SIZ=1). SelectOverridden to use the search window size specifiedin the Search Window Size box (WIN_SIZ=2...512).Generally, “64*Pilot_increment” is selected.

The duration, in chips, that the Retriever searcher will dwell coherently on each pilot during a sweep of asearch window. Generally, it is set to 512.



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This box lets you select which of the Retrieverphone’s HO_TYP parameter settings to use todetermine how the Retriever phone maintains thechannel while scanning PNs.Select Normal - Neighbors Only to use the default setting of HO_TYP=0 and maintain the channel aswould a normal, operational phone. Select Any Pilotto allow idle handoffs to all pilots regardless ofwhether they are Neighbors (HO_TYP=1). SelectHandoffs Suppressed to suppress idle handoffsentirely (HO_TYP=2). Generally, “Normal-NeighborOnly” is selected.

This box lets you select which of the Retriever phone’s LOG_FMT parameter settings to use to control how the Retriever phone packages data for remote logging. Select Dense Pack Mode (LOG_FMT=0) to use the default, ondensed-searcher packet format, which allows logging of every search. Select Standard Searcher Mode (LOG_FMT=1) for interfacing with QUALCOMM’s and other vendors’ test gear, displays, and analysis tools that cannot use the denser packets.

When the Log Packet Format value is set to Standard Searcher Mode, this box can help overcome the link bandwidth limitations of older test tools by letting you set the energy threshold below which search scans are not logged, to limit the data collected to that which is most interesting. This value specifies the Retriever phone’s LOG_THR parameter settings to set that threshold.0



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This drop-down list lets you override the default

Over-the-Air system parameters with those that you

specify on this tab. Parameters that can be

overridden include handoff parameters, search

windows, and the Neighbor aging parameter.

Select Normal - OTA Values to use the default

system parameters. Select Overridden to use the

values specified in the other boxes on this tab. All

OTA defaults will be replaced with values specified

here; be sure to specify complementary values for all

parameters.

Once these settings are applied, the Retriever phone

uses them for all search and handoff operations in

Sync, Idle, and Traffic states until the Retriever

phone is power-cycled.



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Select Overridden to lock onto the CDMAchannel specified in the CDMA Channel box. Select Normal - OTA Value to use the Retriever’s default channel setting.

This box lets you specify whether the Retriever phone should register on the current CDMA channel according to the Active serving sector’s registration parameters. Generally, “Registration Suppressed” is selected

After all these parameters are set, click “APPLY” (note: you shall not only click “OK”; otherwise, the set parameters will not take effect). Then, select Retriever Dense-Pack in the Forward Channel/Multipath Info in the LOGGING MASK. For detail ,please see the next slide.




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One advantage of the CAIT software is that CAIT can collect air interface signaling in a comparatively

complete way. Thus, before the test, the range of the signaling information to be collected shall be

set according to the actual test requirements. This range can be set through LOGGING MASK.

Generally, these messages should be

selected

Click here to pop up the Logging Mask

windows

Configuring Logging MaskConfiguring Logging Mask



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Toggle LoggingToggle Logging

Click here to start the logging



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The Logging Status window displays a summary of logging activities, including a summary of the current log file and those log files already closed. This information is useful for managing the format and size of the file, and types of data collected.

Name of the log file being written

The directory where log files are currently being written.

Logging StatusLogging Status



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MS StatusMS Status

The Status window displays the MS status and current network parameters. Through it, we can

obtain the relatively important information of the MS, including ESN (hexadecimal), PHONE

STATE, CHANNEL, ACTIVE SECTOR PN, SID, NID, LOCAID and MOBILE P_REV.

Operating mode of phone under test. Mode types:CDMA, Analog, or PCN

Current used Walsh code

CDMA channel number



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Displays the number of seconds to wait for the phone to enter a CDMA conversation. If this timer expires, CAIT will resend the Dial command to the phone. Use the arrows to the right of this value to increase or decrease it. If you set this value to zero, the timer is deactivated and this value displays the time it takes to set up the call.

The number to dial.

Specifies a CDMA channel on which the call must be made. To set the Call Monitor to allow calls on any CDMA channel, leave this field blank.

The type of call selected, generally “EVRC” is selected.

Displays the number of seconds remaining in a timedcall, or the number of seconds elapsed during anuntimed (unlimited) call. Use the arrows to the right ofthis value to increase or decrease it. If you set thisvalue to zero, the timer is deactivated and this valuedisplays the time that passes before the call ends.

Configuring Call MonitorConfiguring Call Monitor



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Configuring Call MonitorConfiguring Call Monitor

Displays the number of seconds remaining until the call is redialed. Use the arrows to the right of this value to increase or decrease it.

Counter displaying the number of calls dialedcompared to the total number to be dialed.

Counter displaying the number of calls dropped. Can be reset by clicking the Clear Stats button.

Counter displaying the number of calls that failed. Can be reset by clicking the Clear Stats button.

Click to reset the counter values.

Click to start calling or end a call sequence.



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Stopping LoggingStopping Logging

Click here to stop the testing.

Click here to stop the logging



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Processing Method



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Common Tracing WindowsCommon Tracing WindowsCommon Tracing WindowsCommon Tracing Windows

During the test, we need to observe such information as Ec/Io, FER, TX and RX to analyze the problems. Most of these windows are under the VIEW menu.They can also be activated by clicking the icons in the tool bar.

Tool barView Menu



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Activating Common Tracing Windows Activating Common Tracing Windows

Click VIEW menu of the CAIT

window. At the top of the menu

there are two menu options:

Status Bar and Toolbars. The

former is used to control

whether to display the status bar

under the CAIT window. In the

Toolbars, the three sub-menu

options Tools, Screen and Help

are used to control whether to

display the tools, tracing window

and help shortcut icon in the tool

bar. By default all of them will be

displayed.

You may also activate the searching windows here. The result is the same to click the

icon the windows in the tool bars.



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Communications StatisticsCommunications Statistics

The Communication Statistics window is used for statistics of the communication

performance of the serial port connecting the mobile phone and the computer. Here statistics

can be conducted for the number of packets and bytes transmitted and received by CAIT,

bandwidth occupancy, internal delay, total duration of CAIT test with second as the unit, the

number of packets with CRC error received by CAIT as well as the number of packets

transmitted by CAIT for which no response is obtained. Besides, it can be set to adopt the

accumulation mode or variant display mode.



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The data received should correlate to the expected data. These values are color-coded and appear at column and row intersections.

Markov StatisticsMarkov Statistics

The transmission quality at each frame rate appears in the Markov Statistics window. The window also gives various combinations of dim and burst rate signaling statistics for Markov-originated calls in cell or subscriber station traffic channels. Markov statistics are used to determine the frame error rate (FER) of the system. The FER is used to approximate the voice quality of calls.

Number of frames recorded for the different rate



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MUX1 and Layer 2 StatisticsMUX1 and Layer 2 Statistics

Statistical data for the

forward and reverse MUX1

traffic channels and layer 2

protocol appear in the MUX1

and Layer 2 Statistics

window. These statistics

indicate the quality of the

traffic channels

and characterize the types

of traffic channel frames

being used.



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MUX2 StatisticsMUX2 Statistics

Statistical data for the forward and

reverse MUX1 traffic channels

and layer 2 protocol appear in the

MUX1 and Layer 2 Statistics

window. These statistics indicate

the quality of the traffic channels

and characterize the types of

traffic channel frames being used.



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IS2000 MUX StatisticsIS2000 MUX Statistics

The IS2000 MUX Statistics window displays statistical MUX data for the forward and reve

rse fundamental channel (FCH), dedicated,control channel (DCCH), and upplemental traf

fic channel (SCH0) of IS2000 calls. These statistics indicate the quality of the traffic

channels and characterize the types of traffic channel frames being used.



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Paging and Access StatisticsPaging and Access Statistics

Statistical data on both

paging and access

channels appears in the

Paging And Access

Statistics window. These

statistics indicate the

quality of channels

between the subscriber

station and the base

station.



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GPS InfoGPS Info

GPS information and geographic

location appear in the GPS Info

window. This window provides data

only when CAIT is operating

with the GPS option selected. Values

that are “stale”—that are no

longer valid—appear in red.

Changing the size of this window

changes the size of its contents as

well.



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Temporal AnalyzerTemporal Analyzer

The Temporal Analyzer window displays graphs or line plots of active signals and neighbor signals for a mobile phone under test.

This window shows signal power relative to the time offset in PN (pseudo noise) chips.



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Temporal AnalyzerTemporal Analyzer

PN Offset

Finger number

Ec/Io



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TA ConfigurationTA Configuration

You can configure the way informa

tion appears in the Temporal Analy

zer window by using the TA Config

uration dialog box. To access this

dialog box, press C or choose Conf

iguration from the Temporal Analyz

er menu.



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Pilot SetPilot Set

The searcher information for the test

phone appears in the Pilot Sets

window. The window shows the pilots

belonging to the Active, Candidate,

and Neighbor sets, as well the PN

offset values and power levels for

each pilot.



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Signal GraphsSignal Graphs

The Signal Graphs window displays a user-selectable set of graphs providing call performance information about the phone under test.

Click the check box for the graph you want to view.

You can configure the graphs in this window by

right-clicking in a graph, then choosing

Configure from the resulting pop-up menu. A

graph-specific configuration dialog box appears.



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Signal InformationSignal Information

Performance characteristics for the test phone appear in the Signal Information window. This window has colored bar indicators to show instantaneous call performance measurements.

：



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Log Message SummariesLog Message Summaries

The Log Message Summaries window displays a continuallyrefreshing view of t

he most recent log messages. The newest message is highlighted by a yellow b

ar to indicate the progress of the message list’s refreshing.

you select the type of messages you

want to see by selecting check boxes

in an expandable list of messages.

As CAIT receives messages of the

types selected, it populates the panel

on the right.

By double-clicking a message in the L

og Message Summaries window, you c

an view the details of that message in t

he Log Message Inspector window.



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Log Message InspectorLog Message Inspector

The upper window

shows the message

The lower windows

shows the detail fields

of each message



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Processing Method



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DT Data AnalysisDT Data Analysis

When the collection of data is finished through the CAIT drive test software, th

e test data need be analyzed at the background. Unlike other drive test softwa

res, CAIT has no dedicated or recommended background analysis tool. At pre

sent, the data collected by CAIT can be processed in three ways:

(1) Converting the data into text format

(2) Processing the data with OPAS32 of ANGILENT

(3) Converting the data with ACTIX



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Converting data into test format Converting data into test format

Processing procedures: Use the batch processing program NPAR.EXE to

convert the data collected by CAIT into TXT file and then open the file by

ULTRAEDIT. This method is suitable for viewing some signalings and for s

ignaling analysis.

1. Copy NPAR.EXE to the CAIT-collected data directory.

2. Create a TXT file. Write the NPAR file name> filename.TXT in the file.

(The file name above refers to the name of the file to be converted.) Then sav

e the TXT file as a .BAT file.

3. Run the BAT file. In this case the TXT file will be converted out.

4. Use ULTREDIT to open the file. Then the file can be edited and used for sig

naling analysis.



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Processing the data with OPAS32 of ANGILENTProcessing the data with OPAS32 of ANGILENT

Though the first method can be used to convert the data, it is difficult for d

ata statistics and is particularly inconvenient for the statistics of Ec/Io, TX

and RX data. However, when OPAS32 is used for processing the data, no

background dongle is required, which facilitates the use. Besides, distribut

ion graph can be output. At present, however, OPAS32 product does not

support the analysis of data service data. Moreover, it is known that the d

evelopment of the product is stopped at present. Therefore, its function is

limited and it only supports the analysis of voice service.



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Processing the data with OPAS32 of ANGILENTProcessing the data with OPAS32 of ANGILENT

Precautions for OPAS32 conversion:

1. Generally OPAS32 supports the conversion method where one piece

of data is collected in every 1000ms. Therefore, before the conversion, a

display layer shall be defined by the user and its display duration shall

be set to collect one piece of data in every 20ms.

2. The form of time display should better be changed into HH:MM:SS:

SSSS.



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Converting the data with ACTIX Converting the data with ACTIX

The background conversion tool ACTIX supports the conversion of

Qualcomm data and features good effect. Its advantage lies in its ability

to analyze both voice service and data service and output test analysis

graph, while the disadvantage lies in its requirement for a dongle and its

high price. For new service functions, fees for upgrade are required and

the technical support is provided according to the ID of the dongle. Once

the ID has expired, the service will no longer be provided.



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CAIT Drive Test Tool

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