tems investigation 15.0

7/23/2019 TEMS Investigation 15.0

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TEMS Investigation 15.0 Release Note

1 About This Release

Ascom 2013. All rights reserved.

TEMS is a trademark of Ascom. All other trademarks are the property of theirrespective holders.

2 Important Information

2.1 Rohde & Schwarz TSMW Firmware Upgrade

All customers using Rohde & Schwarz TSMW scanners must upgrade to firmwareversion 1.13. This is to match ViCom software interface version 14.75, which is what issupplied with TEMS Investigation 15.0.

Please refer towww.rohde-schwarz.com/en/firmware/tsmwfor R&S firmware downloadand release notes describing how to upgrade the firmware.

3 New Features

3.1 New Features in TEMS Investigation 15.0

3.1.1 Available Bandwidth Measurements: Blixt

Ascom has devised a method of available bandwidth measurement (ABM) in state-of-the-art wireless networks such as LTE. The patent-pending ABM algorithm,trademarked as Blixt, helps operators track the bandwidth being offeredto theirsubscribers with great precision and millisecond resolution. It has also been carefullydesigned for minimum intrusiveness, that is to say, to have the smallest possibleimpact on the quality-of-experience of paying network users.

What creates the need for a novel ABM algorithm is the rapid evolution of recentmobile telecom technologies such as LTE and HSPA, with their vastly higher data ratesand complex configuration options. For these technologies, traditional ABM methodsare no longer adequate; what is required are metrics and measurement techniquesdesigned specifically for the wireless environment.

Ascoms Blixt technology for ABM is characterized by:

High peak loadlow average load.Test data is sent in short, intense bursts(chirps) with much longer pauses in between. The peak load is high enough to hitthe networks theoretical maximum, while the average load is kept low. Thisscheme allows sounding out the available bandwidth while still making minimum

use of network resources.
http://www.rohde-schwarz.com/en/firmware/tsmwhttp://www.rohde-schwarz.com/en/firmware/tsmwhttp://www.rohde-schwarz.com/en/firmware/tsmwhttp://www.rohde-schwarz.com/en/firmware/tsmw


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Fast adaptation in time domain.The data bursts that probe the network are shortenough to track changes in radio conditions on a millisecond time scale. In this waya high-resolution profile of the available bandwidth is obtained.

Adaptation to network configuration.The amount of data sent is adjustedaccording to the networks maximum throughput (for example, when the UE movesbetween LTE and HSPA networks), while keeping the level of intrusiveness to aminimum at all times.

Server-based design.The device that is performing ABM communicates with aserver which reflects the packets back to the device, including timestamps andother data in the packets. That means it is easy to test different parts of the networkby having the device access different servers. Please contact TEMS support toobtain ABM server IP addresses. A timestamping protocol called TWAMP is used.

3.1.2 New Supplied Device: Sony Xperia V LT25iThis is an Android smartphone operating on LTE, WCDMA, and GSM networks.Equipped with TEMS software, it offers extensive control functionalityfor all of thesetechnologies, including LTE RAT lock and LTE band lock.

The casing of the Xperia V LT25i is water-resistant, making the phone lesssusceptible to moisture damage in wet or damp environments.

Frequency bands:

LTE 2100 (Band 1), 1800 (Band 3), 850 (Band 5), 2600 (Band 7), 800(Band 20)

WCDMA 850 (Band V), 900 (Band VIII), 2100 (Band I) GSM 850, 900, 1800, 1900

Throughput categories:

o LTE Category 3 (100/50 Mbit/s)

o HSDPA Category 24 (42 Mbit/s), HSUPA Category 6 (5.8 Mbit/s)

o GPRS/EDGE Class 12

Control capabilities:

o RAT lock on LTE, WCDMA, GSM

o Band lock on LTE, WCDMA, GSMBoth RAT and band lock are real-time functions. No reboot of the phone required.

o LTE carrier (EARFCN) lock

o WCDMA channel (UARFCN) lock

o WCDMA cell preferred

o GSM cell lock/multi-lock, cell prevention

o Voice codec control

o Cell barred control

o Access class control

Google Android 4.1


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Integrated GPS with A-GPS support

Chipset: Qualcomm MSM9615

CPU: Dual-core 1.4 GHz

3.1.3 New Supplied Device: HTC One XL X325S

This LTE/WCDMA/GSM Android smartphone is primarily intended for the CALA market(Caribbean and Latin America).

Frequency bands:

LTE 1800 (Band 3), 2600 (Band 7)

WCDMA 850 (Band V), 900 (Band 8), 1900 (Band 2), 2100 (Band 1)

GSM 850, 900, 1800, 1900 Throughput categories:

LTE Category 3 (100/50 Mbit/s)

HSDPA Category 14 (21 Mbit/s), HSUPA Category 6 (5.8 Mbit/s)

GPRS/EDGE Class 12

Control capabilities: RAT/band lock

Google Android 4.0

Integrated GPS with A-GPS support

Chipset: Qualcomm MSM8960

CPU: Dual-core 1.5 GHz

3.1.4 Other New Supported Devices

Huawei E3276 (LTE Category 4 device, downlink throughput up to 150 Mbit/s)

Samsung Galaxy S III SPH-L710

Samsung Mpower TV SCH-S239

Cellient MX200

ZTE AC2738

3.1.5 Video Streaming over HTTP

TEMS Investigation has long supported streaming over RTP, both live and on-demand.The 15.0 release adds HTTP streamingto the repertoire, enabling testing of (forexample) video upload websites. Behind the scenes, HTTP streaming relies on InternetExplorer 9 and Flash.

Besides a host ofother information elements diagnostic of streaming sessionperformance, the viewer-perceived streaming qualityis evaluated using the VQmonalgorithm. Developed by Telchemy, VQmon bases its scoring on a parametric model

taking IP sniffing data (among other things) as input. The algorithm is content-sensitive, which means that it allows properties of the streamed video to influence thequality scores, preventing inexpertly shot or edited footage from unduly biasing the


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scores. For example, VQmon detects blank or frozen images as well as suspiciouslyblurry footage that might result from the camera not being properly controlled.

3.1.6 RouteFinder

RouteFinder is a stand-alone utility for searching logfilesin TRP format recorded withTEMS products. Logfiles can be searched according to a wide variety of criteria,including:

Originating TEMS productsand data-collecting devices

Dateof recording

Locationwhere the recording was made

Services tested or measurements performed in the logfile

Eventsand messagesoccurring in the logfile

Information elementshaving valid values in the logfile.

So this means you can now very easily and speedily retrieve from your storehouse oflogfiles such things as: all logfiles recorded with your recently acquired Samsung S IIIdevice; all logfiles from the downtown leg of last Thursdays drive test; all logfiles whereaudio quality was measured; or all logfiles containing dropped calls in that rural areawith known coverage issues.

No matter what logfile data you want to lay your hands on, RouteFinder lets you siftthe gold from the grit, potentially saving you massive amounts of time otherwisespent trawling manually through your collected data.

3.1.7 RouteUtility

This is another logfile-related utility introduced with TEMS Investigation 15.0. It enablesyou to split a TEMS product TRP logfile intoseveral self-contained logfilesaccording to various criteria:

Data-collecting devices used

Date and time

Location

The benefit brought by RouteUtility is that it permits a more relaxed approachto

logfile recording: if you wish you can simply turn recording on at the start of your drivetest, then divide your data into more manageable chunks later.

3.1.8 Voice Call Sequence: MT Voice Call Support

Testing voice by trading calls back and forth between a mobile device and a fixed-sideCall Generator is a long-standing feature of TEMS Automatic and TEMS Symphony.Such call sequences can now be set up in TEMS Investigation as well. A new scriptingconstruct (Synchronized Call Sequence) is provided in the Service Control Designer,looping mobile-terminated and mobile-originatedvoice calls in alternating fashionand measuring voice quality with POLQA or PESQ.


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3.1.9 IMAP Email Retrieval Testing

In the Email Receive script activity, IMAP has been added as an option alongside

POP3. The IMAP (Internet Message Access)protocolfor email retrieval is arefinement of POP3, which it is gradually supplanting.

3.1.10 HTTP Post

The HTTP Post script activity offers an alternative route to testing uplink performance,with a Web server at the other end instead of an FTP server.

3.1.11 LTE Tx Antenna Diagnostics

A new information element indicates the difference in transmit powerbetween the Txantennas of an eNodeB. These measurements can be used to determine in real time ifa newly deployed site has a problem with one of the Tx antennas. Compared totraditional methods of diagnosis, this feature can reduce turnaround time by severaldays.

3.1.12 IPv6 Support

TEMS Investigation 15.0 fully supports the IPv6 address space, which is now beingincreasingly deployed in practical use by Internet providers. This secures uninterrupteddata service testing as traffic flows between the IPv6 and IPv4 domains.

3.1.13 Usability Improvements

Apart from the RouteFinder and RouteUtility tools, TEMS Investigation 15.0 boaststhese usability-enhancing features:

Simplified voice dial.Scripting of voice calls, both CS and VoIP, has beenstreamlined and simplified in the user interface. A single set of dial, answer, andhang up commands now controls any voice call, regardless of bearer.

GPX-format planned routes.TEMS Investigation 15.0 is capable of loadingplanned routes for drive testing created in the XML-based GPX (GPS Exchange)format. The point of doing that is to have the routes displayed in a Map window as adriving aid, so that you do not have to rely on your GPS to follow the correct route.One tool that can be used to create GPX files is Garmins freeware applicationBasecamp; another is Google Maps.

4 Corrected Bugs

4.1 Bugs Corrected in TEMS Investigation 15.0

WCDMA information element E-DCH TTI wrongly described in documentation asnot supported by Sony Ericsson W995 and similar phone models.

Logfile recording failed during execution of scripted SMS Send activity.

Inadequate instructions in documentation on how to enter LTE cell identities in XMLcell file.Description of LOCALCELLID revised.


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GSM/WCDMA scanning with PCTel MX failed in TEMS Investigation 14.6.2.

In logfiles exported in MapInfo TAB format, route segments with no GPS coverage(tunnels) were assigned incorrect positions.The problem was that the GPSinternally reports positions (lat, long) = (0, 0) while lacking coverage and indicatesthese positions as valid. TEMS Investigation now disregards such positions.

LTE: PMI (Precoding Matrix Indicator) from Qualcomm devices always presentedas zero.

Spurious call blocks indicated by TEMS Investigation 14.6.2, associated withtimeouts in call setup procedure.

Spurious call drops indicated by TEMS Investigation 14.6.2, associated withtimeouts in call re-establishment procedure.

No Dropped Call events generated in TEMS Investigation 14.6.2 for drops in GSM

where the UE released the radio connection due to poor downlink quality. LTE logfiles failed to open in TEMS Investigation 14.6.2.

Huawei E392 USB modem was not detected by TEMS Investigation.UEDescription.xmlmodified to cover the firmware version used by the device(PID="151B").

5 Removed Features

5.1 Features Removed in TEMS Investigation 15.0

Windows XP support withdrawn


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6 Known Bugs and Limitations

6.1 PC Application Related

6.1.1 Installation and Start-up

The PC must have a working Internet connection when executing the TEMSInvestigation EXE file, since various software components will be retrieved over theInternet. This includes .NET 4.5 in case the PC does not already have it installed.

When installing TEMS Investigation for the first time, it may take 1020 minutes forthe installation to complete if .NET Framework 4.5 was not already present on thePC. On some PCs, a reboot may take place after the .NET Framework installation.

The application start-up time may be prolonged if slow network shares are mountedon the machine.

For the license attach/detach mechanism in the Admin Control Center to workcorrectly, the Sentinel HASP License Manager on the license server and clientmachines must be of the same version. Always crosscheck the versions manuallyto avoid attach/detach failures.

If TEMS Investigation takes a long time to start up (more than about 45 seconds),the delay may be caused by the OS trying unsuccessfully to check the applicationsVerisign certificate. If a network has been detected, the OS will try to contactVerisign to verify that the certificate is not on the Certificate Revocation List (CRL).TEMS Investigation will not continue until this procedure times out.

There are two ways to remedy this:

1) Open up your proxy to enable access to the Certificate Revocation List. Thedetails of how to accomplish this may vary between countries.

2) Turn off the certificate revocation check in Internet Explorer:

Open Internet Explorer, and from the Tools menu select Internet Options.

On the Advanced tab, under Security, uncheck the option Check forpublishers certificate revocation and click Apply.

(This procedure can be automated by the use of Group Policies.)

When installing TEMS Investigation under Chinese or Japanese Windows, TEMSInvestigation will not recognize file paths such as C:\User\\..., wherecontains Chinese or Japanese characters. This will prevent properuse of the application. (Similar problems may occur with other non-ASCIIcharacters.)

UAC must be set to the lowest level (i.e. turned off) for the TEMS Investigationautomatic software update to work. If an error dialog stating The requestedoperation requires elevation appears upon start-up of TEMS Investigation, thatindicates there is a problem with the UAC level. A workaround is to start TEMSInvestigation using the Run as administrator option.


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6.1.2 Application Use

Note:PC settings and hardware capabilities that are checked by the Computer

Diagnostics utility are not covered here. See the Getting Started Manual, chapter 9.

User-created workspaces from previous versions of TEMS Investigation need to berecreated. New workspaces are supplied with the application.

When using the Copy Worksheet function, any Map settings will be lost.

When many devices are used for data collection, the number of windows in theworkspace should be kept to a minimum to lower the CPU load. It is also advisableto start a new logfile recording at least once every hour in order to reduce RAMconsumption.

The XML cell file format permits only YYYY-MM-DD as date format.

A separately powered USB hub (USB 2.0 or later) is strongly recommended fordrive tests. That is, the USB hub should not be powered through the USB portalone. Depending on the type and number of devices connected, the hub mayotherwise not be able to deliver sufficient power. It needs also to be stressed thatan uninterrupted USB connection between PC and device is vital for successfulrecording of realtime measurement data.

Some GPS units may be erroneously identified in Windows as an MS SerialBallpoint device. If this occurs, perform the following steps:

1) With Administrator privileges on the PC, choose Start > Run > regedit.

2) Navigate to HKEY_LOCAL_MACHINE > System > Current Control Set >

Services > sermouse.

3) Locate the entry Start and double-click on it.

4) Change the value Data from 3 to 4. This will prevent Windows from identifyingthe GPS device as a mouse. Note, however, that leaving the setting Data = 4will prevent you from identifying new mouse devices until you change the valueback to 3.

During logfile recording as well as during logfile replay, temporary files are createdby the application to enable the user to browse the history of the logfile. These filescan become very large (34 times the logfile size), the exact size depending on thenumber of devices activated in the application at recording time. The temporary files

are named according to the format temsn and created in the Windows tempdirectory (default: C:\path\tmp, where the path is defined by the environmentvariable TMP). Make sure there is plenty of space on the disk where the tempdirectory resides. The temporary files are removed when you exit the application;however, if the application terminates abnormally, this might not happen. The filesmust then be removed manually.

When using the pinpointing function in the Map window, you must click the Pinpointbutton before starting logfile recording, not the other way around.

You cannot zoom or manually pan the map (using the toolbar buttons) whilepinpointing in the Map window. (However, as soon as you pinpoint close to theedge of the window, the map will scroll automatically.)

When turning on all extended logs for Sony Ericsson and Qualcomm chipset baseddevices (without turning off something else), the data volume logged will be huge,


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and it may be necessary to start recording of a new logfile once every hour or ateven shorter intervals to prevent RAM usage from becoming excessive.

TEMS Pocket 8.x (HTC) logfiles are not positioned correctly using the TEMSPocket Positioning Tool, so that the TAB file cannot be opened in TEMSInvestigation. The workaround is to create a new TAB file manually in TEMSInvestigation using the Position Map function.

Service Control Designer: In a script workflow, it is not possible to collapse theindividual branches (Sequence activities) of a Parallel activity. Only the Parallelactivity as a whole can be collapsed.

Service Control Designer: The Wait For example in the Users Manual, section13.10.6.2 does not work, since a Wait For activity cannot be triggered by anotheractivity that is inside a (different) while loop.

Service Control Designer: If multiple Service Control Designers are open

simultaneously, a script run from one of them could fail.

When you save a Service Control script to file, any user names and passwords(e.g. for FTP or HTTP servers) given in commands are saved with the file(encrypted). Note that another user who runs your script will be accessing theserver using the same user name and password.

When running video telephony from a Service Control script, the phone shouldpreferably be locked on WCDMA.

SMS and MMS testing with Service Control scripts does not work for devices thatdo not support AT commands.

Streaming over HTTP requires admin rights on the PC, since it needs a successfulIP trace to be able to execute.

At high throughput rates, the application layer throughput as presented in TEMSInvestigation is more spiky and unstable than the throughput in lower protocollayers. Most probably, this phenomenon is caused by the buffering in the third-partyFTP client used by TEMS Investigation. By contrast, CPU load or buffering capacityare unlikely causes of the application throughput fluctuations.

UDP upload testing tends to cause very high CPU load, especially when multipleusers are running UDP concurrently.

During CS voice testing, PESQ is not computed for the AMR-WB speech codec.(This limitation does not apply to VoIP.)

When doing on-device testing with ODM Call Control, a Wait of at least 3 secondsneeds to be inserted after each dial/answer/hangup activity to enable slowerphones to execute.

Only one Synchronized Voice Call Sequence snippet can be in use at a time.

At the end of a Synchronized Voice Call Sequence, be sure not to abort theSequence Cancel call (which is not visible in the Service Control Designer). If youdo abort it, the device will keep receiving calls from the Call Generator.

The phone must be locked to GSM when performing GSM Channel Verification witha WCDMA capable phone. How to set this lock (on Radio Access Technology) is

described in the Users Manual, section 14.13.


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The Channel Verification tool causes the Sony Ericsson W600i phone to bedeactivated, and moreover it cannot be reactivated until the application has beenrestarted.

If Iperf is installed on a Linux/Unix server, the network port on that server must bemapped to terminal vt100.

Map the port by editing a line in /etc/profile:tset -I -Q -m network:vt100

An incorrect mapping will cause the following error:tset:unknown terminal type networkTerminal type?

If Iperf is installed on a Linux/Unix server, the PS1 variable must be changed toPS1=> in the Unix shell Bash in order for Iperf information to be correctlydisplayed.

If Iperf is installed on a Linux/Unix server, then to enable the use of passwords inIperf testing, make sure the default setting for passwords (PasswordAuthenticationyes) is used in the configuration file on the SSH server /etc/ssh/sshd_config.

The waveform in Network Bandwidth line charts will be jagged and not smooth, dueto the low resolution of the Iperf process.

IP sniffing (unless restricted using the Optimized Performance option) cannot beturned on while doing data service testing at throughputs above 25 Mbit/s. If turnedon, it will cause TEMS Investigation to crash. The FullIP sniffing option is notrecommended at all at such high throughputs.

When using the serving cell indication in the Map window to show the strongestscanned CPICH, this works only for the 1st UMTS frequency (the one decoded intothe information elements named 1st).

The information element LTE Total RS Power is valid only for the bandwidths5 MHz and 10 MHz.

The information element Frequent AQM Score Downlink is not populated whenloading a logfile where uplink PESQ data has been merged in.

6.1.3 Windows 7 Specific

User Access Control needs to be turned off to allow IP trace. It may also need to be

disabled for other reasons, depending on its configuration.

6.1.4 Windows Vista Specific

User Access Control needs to be turned off to allow IP trace. It may also need to bedisabled for other reasons, depending on its configuration.

When starting the GeoSet Manager, an error message about writing to theWindows registry appears; however, .gst files can still be created.


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6.2 Device Related: General

6.2.1 Network Connect Some LTE devices must be connected to the network manually using their

connection managers, or by means of tethering, rather than automatically in theService Control script. See the Users Manual, section 13.16.3.2.1, where this isdetailed for a range of devices.

Note that when the network connect is performed manually, a Network Connect activitymust still be included in the Service Control script for the subsequent data serviceactivities to execute correctly.

6.2.2 TCP Settings

Windows Vista and Windows 7 have a function for automatic tuning of TCPsettings. Check whether that function is enabled as follows:

1) Open a Command Prompt using the Run As Administrator option (right-click theCommand Prompt item on the Start menu).

2) Type netsh interface tcp show globaland inspect the value returned for ReceiveWindow Auto-Tuning Level.

3) If this parameter is disabled, give the command netsh interface tcp set globalautotuninglevel=to enable it. The value of should be highlyrestricted if the server you are contacting does not haveRFC1323 implemented or does not support the TCP receive window scaling

factor. Otherwise, should have the value normal.

6.2.3 MTU Size

For LTE operation it may be necessary to adjust the MTU (Maximum TransmissionUnit) size, that is, the maximum IP packet size in bytes. The optimum MTU sizedepends on the network bandwidth and other factors, so it is impossible to give auniversally valid recommendation. In general, however, the faster the LTE network, themore important it is to choose a good MTU setting to be able to approach the maximumachievable throughput.

Here is how to change the MTU size:

Windows Vista, Windows 7:

1) Open a Command Prompt using the Run As Administrator option (right-click theCommand Prompt item on the Start menu).

2) Run the command netsh interface ipv4 show interfacesand note the identity ofthe relevant interface.

3) Run the commandnetsh interface ipv4 set subinterface mtu= store=persistent.

Example: netsh interface ipv4 set subinterface 25 mtu=1460 store=persistent


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6.3 User Terminal Related

6.3.1 General If you intend to use a USB hub for connecting multiple devices, install the devices

one at a time to avoid problems with driver mix-up in Windows. It is wise to do thisin the office, before starting TEMS Investigation. When all devices have installed,start TEMS Investigation and check that all devices are detected properly and canbe activated in the application.

If the connection manager of a device is started automatically at device insertion, itwill block the AT interrogation performed by TEMS Investigation, and the device willshow up as Unknown. To resolve this, terminate the connection manager, andclick the Refresh button in TEMS Investigation to repeat the autodetect procedure.

Certain connectable devices respond to very few AT commands. One example isthe Samsung SPH-M320.

When the device is used for highly demanding tests of extended duration (forexample, LTE data transfer), it may happen that the charging cannot keep up withthe power consumption, so that the battery eventually will be drained even ifcontinuously recharged (by whatever method).

6.3.2 Sony Ericsson Android Phones (Qualcomm Chipset Based)

6.3.2.1 Instructions for Driver Installation

Connect the Xperia phone to the PC. Windows will try to find drivers; when theautomatic driver installation fails, open the Device Manager on your computer.

Locate the Xperia phone with missing drivers under Device Manager > Otherdevices.

Right-click the first SEMC HSUSB Device and select Update Driver Software >Browse my computer for driver software.

Browse all the way to the directory where the applicable driver for your operatingsystem is stored; note that 32-bit and 64-bit Windows must be distinguished.Example of path: ...\Drivers\Sony Ericsson\x10\Win64.

Click Next.

Repeat the procedure for the remaining SEMC HSUSB Device items.

6.3.2.2 Other

Xperia T LT30a:Streaming and SMS send/receive are not supported.

Xperia T LT30a:If a CS call is ongoing and you stop the script before it reaches theHang Up activity, then the call will not be hung up.

Xperia arc S, arc, X10:Activate USB debugging so that all relevant ports becomevisible: Press the Menu button, then choose Settings > Applications >Development, and make sure USB debugging is enabled.

Xperia arc, X10:Make sure no APN is set in the phone: Press the Menu button,then choose Settings > Wireless & networks > Mobile networks > Access PointNames, and make sure nothing is set. (If an APN is already present in the phone,


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displayed. 2) The channel verification function attempts to disable handover on thephone, but this does not work for phones prior to W760i and C702.

Sony Ericsson K600/W600: If CKPD is going to be used to execute video calls, it isnecessary to disable the keylock first.

When sending SMS messages from Sony Ericsson phones such as Z750 andW760, the number of characters is severely limited (worst case: max 23characters).

The phone must have been activated at least once in TEMS Investigation for themessage tree to be fully populated in the device properties, Layer 3 Messages item(from where you can discard messages of selected types).

6.3.4 Qualcomm Chipset Based Phones and PC Cards

(Notes specific to Sony/Sony Ericsson Xperia models are found in section6.3.2) Some Qualcomm chipset based commercial UEs may not have test reporting

activated. The device may then be impossible to activate in TEMS Investigation, orseem to be locked to GSM, and/or only deliver low-level reports. Please contact theUE vendor; Ascom is not authorized to change this behavior.

Certain Qualcomm chipset based LTE devices that require the use of a connectionmanager do not start reporting LL1 and Layer 3 signaling until an explicit PS Attachhas been performed. A workaround is as follows:

1) Activate the device in TEMS Investigation.

2) Execute the Service Control activities PS Detach and PS Attach.

3) Connect the device using the connection manager.

4) In TEMS Investigation, execute the Network Connect activity. The device is nowready for data service testing.

Care needs to be taken when using the NV interface to write to a Qualcommchipset based device, since an inappropriate NV write may damage the device.

LTE data service testing at high throughput rates (above 50 Mbit/s) with aQualcomm chipset based device requires a very powerful processor, for example a2nd generation Intel Core i5 or comparable Intel Core i7. Please note that thislimitation is not TEMS Investigation related.

AT commands in Service Control scripts are not always executed by Qualcommchipset based devices.

When an Ericsson Fixed Wireless Terminal is activated, it is not possible to do dataservice testing with any other devices at the same time.

To enable detection of the Ericsson Fixed Wireless Terminals, uncomment the linecontaining "QualcommNetworkDetector" in the file \Application\Configuration\Investigation.Equipment.config. If TEMS Investigationis running, you must restart the application for the change to take effect.

If a Qualcomm chipset based device is not detected by TEMS Investigation,although it is built on a supported chipset, you can run the Manual UE Configuration

utility to help TEMS Investigation recognize the device. See the Users Manual,section 7.3.4 for details on how to operate this utility.


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For some Qualcomm chipset based devices that support band lock, the followingproblem can be seen: If you exit TEMS Investigation after applying a band lock, andyou do not reboot the device before next time you start TEMS Investigation, then

the band lock dialog will show the band(s) you locked on as the devices bandcapabilities.

For Anydata ADU-895, the connection manager must be started once after eachdevice insertion to have device ports installed in Windows. After this, the connectionmanager can be terminated.

The PS Detach and PS Attach commands do not work with Bandluxe devices.

No Layer 3 messages are obtained from Bandluxe devices in LTE mode.

HTC Touch Pro2 phones with TCP router need special configuration to be usablewith TEMS Investigation. See the Users Manual, section7.3.3.4.

LG LTE modems sometimes take a long time (more than 30 seconds) to performinter-RAT cell reselection between 3G (UMTS or EV-DO) and 4G (LTE). This hasbeen observed for both 4G 3G and 3G 4G transitions.

On the Samsung Galaxy S III GT-I9305, if a CS or VoLTE call is ongoing and youstop the script before it reaches the Hang Up activity, then the call will not be hungup.

Samsung Galaxy S III GT-I9305 does not support SMS send/receive, MMSsend/receive, or streaming over RTP (but it does support HTTP streaming).

Samsung Galaxy S III SPH-L710 reboots itself after the RAT lock setting has beenchanged.

Samsung Metro GT-S5350 does not support video call dialing; however, it doeshave the capability to answer a video call. SMS Send works, but may generateerror messages.

Samsung Omnia II does not answer incoming voice or video calls.

FTP does not work with Samsung Omnia SCH-i910.

Service testing with Samsung SPH-M320 does not work.

Sierra Wireless AC319U: Repeated network connects/disconnects must be avoidedfor this device. The Network Connect activity must therefore not be placed inside aloop in a Service Control script; rather, it should be performed only once at the

beginning. Sierra Wireless AC503 stops sending RF logs after 1020 minutes of dual data

session testing. To restore RF data delivery, you need to disconnect and reconnectthe device.

Notes on Huawei C8600 supporting AQM with TerraTec ACU

For the Huawei C8600 to be able to perform data calls governed by TEMSInvestigation, the Data Service option in the NetManager application must be turnedoff. To accomplish this, turn off the up-arrow/down-arrow button on the phonestop-level menu. Alternatively, go to Applications > NetManager and deselect theData Serviceoption. Note that by default, the Data Service option is turned on.

This instruction applies to prototype Huawei C8600 devices sharing the same IMEI.If you connect two such devices to the PC, and the detect in TEMS Investigationfails, do as follows:


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www.microsoft.com/en-us/download/details.aspx?id=26368and download the filevcredist_x86.exe. Knowledge Base reference: KB2538243.

6.3.12 Nokia NTM3 Phones

When the Nokia phone switches from GSM to WCDMA, GSM values remain inTEMS Investigation presentation windows. These are old values and lingerbecause Nokia NTM3 phones stop reporting on GSM after the switch.

If you encounter problems activating a Nokia NTM3 phone in TEMS Investigation,there is a need for a power reboot of the phone.

When locking the Nokia phone on a band, this action should be preceded bydisabling the band lock. If you click OK between selections of different bands, thephone will lock on all bands that you have selected at some point.

When WCDMA band lock is enabled, any attempt to access a cell on any otherWCDMA band will result in that cell being barred for approximately 20 minutes.Therefore you cannot immediately go back to the band you were on before applyingthe band lock (or to a cell on that band). Furthermore, if the phone is locked on aWCDMA band and you lock on a different band, then release that lock, you will getno substantial phone logs for 20 minutes. For the above reasons, if you do not wantto wait through the 20-minute period, it is recommended that you restart the phonebefore locking on a different WCDMA band or releasing the band lock.

To run the SMS Send script activity on a Nokia 6720, you must set the parameterRequest Delivery Report to False. If the default setting True is retained, sending ofSMS messages will not work.

High data throughput may cause the Nokia C7-00 phone to reboot (see Nokiarelease notes).

The video call capability of the Nokia C7-00 is not supported in TEMS Investigation.

6.4 ACU R2 Related

Any GSM phones need to be kept at a minimum distance of 15 cm from theACU R2 box, otherwise they will interfere with measurements.

For the answering party, a 3 s Wait before the Voice Quality activity isrecommended in order to prevent any possible problems with the calculation of the

first AQM score. This Wait duration is suitable for two phones of identical make andmodel; if two different phones are used, the duration may need to be modified.

6.5 ACU TerraTec Related

This section relates to the TerraTec box Audio Capturing Unit.

USB 3.0 should not be used in conjunction with the ACU, since it introduces noise intothe recordings and degrades AQM scores.

6.6 AQM Module Related

This section relates to AQM modules used in combination with a Call Generator orMRU.
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If you need to power cycle the scanner during use, pull the USB cable before doingso, and do not reconnect it until the scanner has started up again (green LED).

If you do not deactivate the scanner properly in TEMS Investigation, problems mayarise when you try to activate it again. For example, if you remove the cable fromthe serial port without first deactivating the scanner in the application,measurements will continue to run in the scanner, and when it is connected to theport again the activation might fail. To solve the problem, turn the scanner off andon and the activation function will work again.

When plugging in a PCTel SeeGull LX scanner that uses a serial connection, clickthe Refresh button on the Navigators Equipment tab to ensure that the scanner isdetected.

With some PCTel scanners only 2560 measurement points can be allocated forspectrum scanning, even though the scanner in fact has more measurement points

available. The PCTel scanners may sometimes report many scan drop messages. The

scanner uses this message to tell the host how many scan data messages weredropped and not delivered through the data link. Scan data is dropped automaticallywhen the scanner is scanning faster than the data can be delivered through thedata link, causing the pipeline to overfill.

For EV-DO scanners, the Use Pilot Increment option is not available.

When setting up a follow phone scan in CDMA, all fields in the setup dialog musthave some value set, otherwise you cannot click OK. Enter dummy values in thedialog as needed.

For the PCTel SeeGull EX scanner, version 2.0.1.0 and later, be sure to install thedriver delivered with TEMS Investigation. Do not install any driver provided onPCTels web site. The reason is as follows: If you have PCTels own driver installed,then if the scanner is activated in TEMS Investigation and you pull its cable, thescanner port will not disappear from Windows and thus not from the TEMSInvestigation user interface either. The driver delivered with TEMS Investigationcontains a modification that removes the scanner port in the situation justdescribed.

For Enhanced signal scan (RF Path and Subband options) in TD-LTE, themeasurement bandwidths 15 MHz and 20 MHz are not supported.

When a PCTel LX MM2 scanner is connected to TEMS Investigation you cannotuse the Activate All function; rather, you must activate each device separately.

6.7.7 PCTel SeeGull MX

Detection of PCTel SeeGull MX scanner:

After the driver has installed and Windows has detected the device for the first time,the scanner should be rebooted.

Always wait for the scanner to boot completely (LED turns dark green) beforestarting TEMS Investigation. This can take up to 90 seconds (during which time theLED is pale green or orange).


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6.7.8 PCTel SeeGull PCT

PCTel SeeGull PCT scanner may not be detected on some PCs. If this problem

occurs, disable the Intel Active Management Technology SOL driver if it existson the PC, then restart TEMS Investigation.

6.7.9 Rohde & Schwarz TSMW

Rohde & Schwarz TSMW scanners must have firmware version 1.13 installed.

6.7.10 Transcom

The Transcom scanner is not capable of scanning more than one LTE band at atime.

Transcoms Eagle PC software cannot run concurrently with TEMS Investigation.

6.8 GPS Related

To activate the Nokia LD-3W Bluetooth GPS device, first start up TEMSInvestigation. Then connect the GPS logically in Windows, outside of the TEMSInvestigation application. Only after this can the GPS be successfully activated onthe Navigators Equipment tab.

If the power is lost on a Bluetooth GPS device, you may need to restart TEMSInvestigation to be able to activate the device in the application.

If a Bluetooth GPS cannot be found, try to restart the GPS. Wait for the applicationand computer to establish the pairing. A Refresh equipment operation may beneeded in the Navigator if the device still does not appear.

6.9 Call Generator Related

The Call Generator installation requires an English-language edition of Windows.

If the Call Generator PC is not running Windows Server 2008 R2, make sure thatyou have Windows Management Framework (Windows PowerShell 2.0, WinRM2.0, and BITS 4.0) installed. To check what version you have, run a commandprompt as administrator and type $host.version. This command should return

Major= 2. If it does not, download the correct software version via WindowsUpdate or by following this link:support.microsoft.com/kb/968929.In PowerShell,also check that Get-ExecutionPolicyreturns RemoteSigned. Ifyou get a differentresponse, run the command Set-ExecutionPolicy RemoteSigned.

6.10 TEMS UDP Server Related

If the following error message appears when the server is starting up: Error1053:The service did not respond to the start or control request in a timely fashion, doone of the following (the two procedures have the same effect):

1) Remove the internet cable. Start the service. Plug in the internet cable.

2) Open a command prompt and type ipconfig/release. Start the service. At thecommand prompt, type: ipconfig/renew.
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7 Contact Information

Please visit our website atwww.ascom.com/networktesting.

For customer support contact information, see the pagewww.ascom.com/en/index/support/support-tems.htm.

8 Appendices

8.1 Open Source Licensing Information

The USB driver (libusb0) used for the AQM module is part of the open source libusbWindows project. This project can be found on the Internet at

sourceforge.net/apps/trac/libusb-win32/wiki.The libusb-win32 project retains all rightsand copyrights to the libusb-win32 code. The library (DLL) is distributed under theterms of the GNU Lesser General Public License (LGPL) and the driver is distributedunder the terms of the GNU General Public License (GPL). The LGPL and GPL licensetext can be found on TEMS Investigation driver installation CD. The source code forlibusb-win32 is freely available and can be found on the TEMS Investigation driverinstallation CD.

8.2 AQM with TerraTec ACU: Certification and StandardCompliance

All system components used in the TEMS Investigation AQM configuration withTerraTec ACU are declared to be CE compliant by the corresponding manufacturers.Additionally, Ascom Network Testing tested the entire abovementioned AQMconfiguration to ensure that no additional emission resulted from interconnecting theindividual components. The TEMS Investigation AQM configuration was found tocomply with the EN55022:2006 A1:2007 standard for a Class B device. Tests wereperformed by a certified laboratory, and the test reports are available upon request.
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tems investigation 15.0

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