4.17.1. General
• If a 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 User’s Manual, section6.3.4 for details on how to operate this utility.
• 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 this in the office, before starting TEMS Investigation. When all devices have installed, start TEMS Investigation and check that all devices are detected properly and can be activated in the application.
• If the connection manager of a device is started automatically at device insertion, it will block the AT interrogation performed by TEMS
Investigation, and the device will show up as “Unknown”. To resolve this, terminate the connection manager, and click the Refresh button in TEMS Investigation to repeat the autodetect procedure.
WARNING: To ensure personal safety and to limit the exposure to electromagnetic fields, always keep a minimum distance of 20 cm from an external antenna.
4.17.2.1. General
• Certain Qualcomm LTE devices that require the use of a connection manager do not start reporting LL1 and Layer 3 signaling until an explicit PS Attach has 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 now ready for data service testing.
• NV interface: Care needs to be taken when using the NV interface to write to a Qualcomm device, since an inappropriate NV write may damage the device. See the User’s Manual, section14.10.
• LTE data service testing at high throughput rates with a Qualcomm device requires a very powerful processor, as detailed in the Installation Guide, section4.1. Please note that this limitation is not TEMS Investigation related.
• AT commands in Service Control scripts are not always executed by Qualcomm devices.
• RAT lock: When a Qualcomm device is locked to more than one RAT, the RAT lock dialog (User’s Manual, section14.13) will not show the correct state. When the device is locked to WCDMA + GSM, the dialog will have LTE + WCDMA + GSM checked.
• Band lock: For some Qualcomm devices that support this function, the following problem can be seen: If you exit TEMS Investigation after applying a band lock, and you do not reboot the device before next time
Chapter 4. Configuration of User Terminals
you start TEMS Investigation, then the band lock dialog will show the band(s) you locked on as the device’s band capabilities.
• Various devices (including Sony Xperia LT25i/LT30a, Samsung Galaxy S4 GT-I9505, Samsung Galaxy S III GT-I9305) have occasionally been observed to enter a state where it is tethered to a PC, yet is unable to run IP services as directed from the PC. The workaround in this situation is to reboot the phone (retethering does not help).
4.17.2.2. Vendor or Device Specific
• Anydata ADU-895: The connection manager must be started once after each device insertion to have device ports installed in Windows. After this, the connection manager can be terminated.
• Bandluxe devices: The PS Detach and PS Attach commands do not work with these devices.
• Bandluxe devices: No Layer 3 messages are obtained from these devices in LTE mode.
• HTC Touch Pro2 devices: See section 4.17.2.3.
• LG LTE modems sometimes take a long time (more than 30 seconds) to perform inter-RAT cell reselection between 3G (UMTS or EV-DO) and 4G (LTE). This has been observed for both 4G 3G and 3G 4G transitions.
• Samsung Galaxy Avant SM-G386T needs to be rebooted after an AQM session using its on-device AQM software. This is in order to re-enable the microphone.
• Samsung Galaxy S III GT-I9305 does not support MMS send/receive or streaming over RTP (but it does support HTTP streaming).
• Samsung Galaxy S III GT-I9305: If a CS or VoLTE call is ongoing, and you stop the script before it reaches the Hang Up activity, then the call will never be hung up.
• Samsung Galaxy S III GT-I9305, Samsung Galaxy S4 GT-I9505: For commercial devices (i.e. without TEMS software) of these models using RNDIS, the following applies: Only one device at a time can be connected in TEMS Investigation. That is, you can only connect one GT-I9305 or one GT-I9505, not one of each or several of either.
• Samsung Galaxy S III SPH-L710 reboots itself after the RAT lock setting has been changed.
• Sierra Wireless AirCard 319U: Repeated network connects/disconnects must be avoided with this device. The Network Connect activity must therefore not be placed inside a loop in a Service Control script; rather, it should be performed only once at the beginning.
• Sierra Wireless AirCard 503 stops sending RF logs after 10–20 minutes of dual data session testing. To restore RF data delivery, you need to disconnect and reconnect the device.
• Sony Xperia V LT25i, Xperia T LT30a: When one of these phones is on an LTE network, and the network performs an RRC Connection Release with a redirect to another EARFCN, the phone might begin to use the other EARFCN even if LTE inter-frequency handover is disabled and/or Lock on EARFCN is enabled.
• Sony Ericsson Xperia arc S LT18: When using this device for multi-RAB testing with CS voice and a data service in parallel, it is necessary to establish the voice call before initiating the data session and to conclude the data session before hanging up the voice call. In other words, the Service Control script needs to be structured as follows: Dial Network Connect <data service activities> Network Disconnect Hang Up.
• Sony Ericsson Xperia arc S LT18: To run the SMS Send script activity on this device, you must set the parameter Request Delivery Report to False. If the default setting True is retained, sending of SMS messages will not work.
4.17.2.3. HTC Touch Pro2 Phones
HTC Touch Pro2 phones (including HTC Imagio) need some configuring before TEMS Investigation can detect them. The details of the configuration differ depending on the phone (unbranded, AT&T branded, Verizon branded, etc.). Below, a brief description is given of what needs to be done.
Chapter 4. Configuration of User Terminals
On all phones you need to activate tethering via USB while the phone is connected to the PC by the USB cable. The terminology used to refer to tethering differs between phones:
• On a Verizon branded phone, activate the “Modem link”.
• On other HTC Touch Pro2 phones, activate “Internet Sharing”.
In each case, this operation creates ports in Windows that TEMS Investigation can detect.
Of phones having the “Internet Sharing” function, only one phone at a time can be used with TEMS Investigation. This limitation does not apply to the Verizon branded phones.
On all HTC Touch Pro2 phones except Verizon branded ones, you also need to install TCP Router software. This is provided by Ascom in the form of a CAB file.
For HTC Touch Pro2 phones generally, IP sniffing needs to be disabled. This means that KPI data cannot be collected with these phones. For instructions, please refer to the User’s Manual, section 12.23.3.
4.17.3. Samsung Devices Based on Samsung Chipset
• The event IP Interruption Time cannot be generated.
4.17.4. Samsung Devices Based on Samsung and Qualcomm Chipsets
• For Samsung Android based LTE devices using a Samsung chipset for LTE and a Qualcomm chipset for CDMA (such as SCH-R920, SCH-I510), each chipset is seen by Windows as a separate device. Depending on which RAT mode the device is in, it will expose either its LTE ports or its CDMA ports in the Windows Device Manager, but never both sets of ports at the same time.
4.17.5. Samsung Devices Based on Samsung and Via Chipsets
• Samsung Stratosphere SCH-I405: If a scripted VoLTE call is in progress on this device and you stop the script before it reaches the Hang Up activity, then the call will not be hung up.
4.17.8. Hisilicon Chipset Based Devices
• After pulling the device cable, the Hisilicon UE Agent needs to be restarted.
• With two devices activated in TEMS Investigation, if the Hisilicon UE Agent loses its connection to one device, the agent will crash and the other device will be deactivated as well.
• To the Huawei E3276-150 the following limitations apply:
– Band lock and Cell lock (whether in idle or dedicated mode) do not work.
– Information elements are updated only for LTE; for WCDMA and GSM, only Layer 3 signaling and mode reports are presented.
• The following GSM logs should not be enabled in the device properties, since they may crash the Hisilicon UE Agent causing the phone connection to be lost:
– GPRS Data Throughput TTF_SNDCP_DL REQ (0x151E556) – GPRS Data Throughput TTF_LLC_DL REQ (0x151E55C) – GPRS Data Throughput TTF_RLC_DL REQ (0x151E563) Compare the User’s Manual, section16.4.
• Some instability issues have been noted with the Hisilicon UE Agent:
– The agent will sometimes lose the connection to the device for no apparent reason. When this happens it may be necessary to uninstall and reinstall the agent.
– The agent has trouble detecting high port numbers. All port numbers
Chapter 4. Configuration of User Terminals
– Sometimes when the device has been activated in TEMS
Investigation, the agent still does not indicate its ports as connected, or only some of the ports are shown as connected. Occasionally, when some port is indicated as missing, the flow of Layer 3 messages will stop.
4.17.9. Sony Ericsson R13 Phones (W995, etc.)
• Avoid mixing USB 2.0 (High Speed) and USB 1.1 (Full Speed) Sony Ericsson phones, as doing so will cause some SEMC devices not to communicate correctly over AT with TEMS Investigation. See also section4.14.
– USB 1.1 default Sony Ericsson phones are: Z750, C702 and W760.
– USB 1.1 and 2.0 changeable Sony Ericsson phones are: C905 and W995.
• In Windows Vista, device drivers can take a while to get running after you plug in a Sony Ericsson phone, so that the detect may take some time to complete. (Look at the status indicator on the Navigator’s Equipment tab to view the current detect status for the device.)
• When connecting a USB hub with Sony Ericsson phones to a Windows Vista PC, the phone with the lowest port number in the USB hub is sometimes not detected. This is solved by unplugging and reinserting the phone.
• When using a USB hub with a Windows Vista PC for connecting Sony Ericsson phones, it is best to plug the phones into the USB hub one at a time.
• The driver software for the memory stick needs to be installed on the PC to avoid problems when connecting a phone that is turned off. For a K790 or K800 equipped with a memory stick, do as follows when first
connecting the phone:
1 Insert the USB cable.
2 Wait for drivers to install.
3 Unplug and insert again to make the memory stick driver install.
• If a Sony Ericsson TEMS Pocket phone is activated in TEMS Investigation and the USB cable is pulled, TEMS Pocket will remain disabled until:
– the phone is restarted, or
• When sending SMS messages from Sony Ericsson phones such as Z750 and W760, the number of characters is severely limited (worst case: max 23 characters).
• GSM channel verification:
– The phone must be on GSM before start of test; otherwise the test will stall, and after 20 seconds an error “BCCH Lost” will be displayed.
– The channel verification function attempts to disable handover on the phone, but this does not work for phones prior to W760i and C702.
– The channel verification function causes the W600 to be deactivated, and the phone cannot be re-activated until after restart of TEMS Investigation.
• Sony Ericsson K600, W600: If CKPD is going to be used to execute video calls, it is necessary to disable the keylock first.
Chapter 5. Using a Device’s Wi-Fi Hotspot for PC Tethering