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29. January 2008 |
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New Qosmotec Product: Protocol Analyzer QUANT |
The Qosmotec suite of test tools features another newcomer: The protocol analyzer QUANT (Qosmotec Universal Analyzer for Network Traces)
QUANT is an easy-to-use PC-based protocol analyzer for GSM / GPRS / EDGE / UMTS / HSPA. Probe heads are available either in form of compact external boxes with USB 2.0 interface for any kind of Windows computer (laptop, desktop, industrial PC), or as PCI plug-in boards for desktop or industrial PCs.
Advantages of the QUANT solution are:
* Portability
- Compact (140x135x30 mm / 225 g) USB unit can be controlled by a laptop
* Flexibility
- E1 PHY interface for PCM 64K/16K / 2M HSL / IMA links
- STM-1/OC3 interface for ATM links
- Ethernet interface for IP links
- Channelized interface
* Versatility
- Support of all 3GPP R99, R4, R5 and R6 protocol suites
- GSM, GPRS, EDGE, UMTS, HSUPA, HSDPA, SS7, IMS, WiMax
- Live monitoring with capture and display filter capabilities
- Single call representation in form of message sequence charts
- Counters and customizable KPI analysis
- Trace export and post processing
* Affordability
- Most affordable protocol analyzer on the market – request an offer!
QUANT will be presented by Qosmotec at Mobile World Congress in Barcelona and is available immediately.
» About Quant... |
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22. January 2008 |
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Qosmotec presents Channel Simulator QPER at Mobile World Congress |
As announced in 2007, Qosmotec will present its new channel simulator QPER (Qosmotec Propagation Effects Replicator) at Mobile World congress in Barcelona for the first time.
QPER can replicate all relevant propagation conditions such as path loss, delay, phase shift, Doppler shift, Doppler spread, additive white Gaussian noise, and multipath.
Advantages of the QPER solution are:
* Scalability
- a single compact 19” / 7U unit fits 1-8 channels
- system can be expanded by adding plug-in boards or by cascading multiple units
- channels can be partitioned into 1-4 subchannels yielding up to 32 separate links per unit for SISO, SIMO/MISO or MIMO tests
* Flexibility
- effects implemented as upgradeable firmware,
- supports all networks with frequencies within 380 – 6000 MHz
- can be controlled from our automatic call tester LTS and can be joined seamlessly with our handover simulator AIS
* Unique easy-to-use Mobility Simulation Interface
- real-life-like replication of mobiles moving between base stations, with associated effects (Doppler shift according to radial motion relative to BS, delay and signal strength changing with distance, smart antenna angle of incidence varying with direction)
- simulation of multipath (multiple paths with individual delay / attenuation / fading) in user-definable areas with individual settings
- simulation of static propagation conditions and sinusoidal sliding delay / birth-death-process provided in complementary GUI
Come and visit us in hall 2, ground floor, booth 2H71.
» About QPER |
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01. July 2007 |
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Open jobs at Qosmotec... |
Ab sofort suchen wir wieder engagierte und fähige Mitarbeiter im Bereich Software Entwicklung.
» Click here to navigate to our open job list |
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25. June 2007 |
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LTS-P Promotional Sales |
With immediate effect, Qosmotec offers a limited number of LTS-P drive testers for a bargain price.
The drive testers are equipped with a GPS receiver and two mobile phones, one of them providing tracing functions. The drive tester offers a full set of automated test cases for KPI measurements. A test case editor allows the user to modify or add test cases. A voice quality measurement feature can be included for a small surcharge.
» Click here to find out more about this special offer. |
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17. January 2007 |
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Qosmotec Announces QPER at 3GSM World Congress 2007 |
Qosmotec's new QPER Propagation Effects Replicator emulates propagation conditions on mobile radio channels between 400 MHz and 6 GHz (TETRA - WiMax).
With QPER, testers can replicate all relevant propagation conditions such as amplitude variation (handover test), delay (Timing Advance, delay spread), phase shift (active antenna simulation), Doppler shift, white noise (quality handover), interference, and multipath. In particular, QPER can emulate all propagation conditions as specified in 3GPP 25.141/2, Annex D/B.
The QPER GUI allows to model a real-life-like network scenery rather than handling complex parameters and to run test scenarios unattendedly.
QPER integrates seamlessly with Qosmotec’s Air Interface Simulator AIS, enhancing it with realistic propagation condition simulation.
QPER will be officially announced at 3 GSM World Congress 2007 in Barcelona, where details about the tool will be published. |
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15. January 2007 |
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LTS-P now with integreated SIM multiplexing |
Effective immediately, Qosmotec’s LTS-P drive test solution is available with an optional integrated SIM server.
The SIM-Server, integrated in the lid of the LTS-P carrying case, can hold up to 32 SIMs or USIMs, that can be mapped onto the individual mobiles inside the LTS-P system. Thus, GPS-located drive tests can be combined with IREG roaming tests.
LTS-P can be fitted with 1 to 8 mobiles, some or all of which can have their SIMs replaced with an adapter that connects them to the SIM server. Assigning SIMs to the mobiles is a simple drag-&-drop action in the LTS-P GUI. By assigning lists of SIMs, it is easy to schedule tests that automatically swap SIMs from the list between test cases. A freshly assigned SIM is detected after the mobile has been automatically switched off and on by LTS-P.
For mobiles not equipped with a SIM adapter, the SIM is easily replaceable by means of an externally accessible extension slot.
LTS-P allows automatic access of nearly all network services (circuit-switched calls, supplementary services, USSD, SMS, MMS, WAP/FTP/http and other data transfers, video calls, and more) within GSM, GPRS and UMTS networks. HSDPA is supported as well.
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10. January 2007 |
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Smart Antenna Simulation with AIS |
Some WiMax, WiFi and TD-SCDMA systems employ MISO and MIMO technologies that allow them to modify the direction of maximum coverage (beam forming, see figure). Transmitting the same signal via multiple antennas with different phase shifts, the wave front can be directed. The direction can rapidly be modified, so the beam can quickly alter between several receivers that require extraordinary coverage. This mode of operation is called “smart antenna”.
Smart antennas can now be tested with AIS. The multiple feeds of the active antenna are fed into an array of delay lines in front of AIS, which simulates the delayed arrival of the signals from different antenna elements of the sending antenna at the receiving terminal. The terminal is in the focus of the active antenna only, if the antenna adjusts its phase shifters so that it exactly cancels out the phase shifts induced by the AIS delay lines.
This solution, being based on real delay elements with 5 ps step size, is unique on the market. Competitor systems can only perform a simple phase shift without introducing any delay (and associated delay spread) and are an order of magnitude more expensive.
In the AIS GUI, the operation is transparent to the user. As the mobile moves along a user-defined path relative to the antenna in a virtual landscape, the delay lines are automatically adjusted to simulate the changing angle of incidence. Thus, the antenna constantly has to adapt its focus to follow the terminal. It is also possible to have multiple mobiles move in different locations and thus force the antenna to alternate between them.
For more information, please contact us.
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