Qosmotec:
The Propagation Effects Replicator (QPER):
Qosmotec's Propagation Effects Replicator is a channel simulator that can emulate all effects of disturbance relevant for a radio channel transmission tests, such as propagation delay, Doppler shift and spread, phase shift, multipath and noise. QPER is suited for radio path verification of any radio broadcasting equipment operating between 380 and 6000 MHz, including MIMO systems, for which QPER offers up to 32 individual links per 19" / 7U rack unit.
Being based on the same real-life-like virtual drive test mode QPER, makes radio path verification vivid and dynamic. In addition, QPER supports traditional tapped channel models like ITU/3GPP (incl."sinusoidal delay", "birth-death" and "high-speed train" models) as well as simulation of MIMO-related channel matrix, correlation matrix (arbitrary/Kronecker) and geometric channel models (SCME, WINNER I/II):
The Propagation Effects Replicator emloys a completely intuitive graphical user interface, enabling the user to define dynamic real-life-like simulations in virtual sceneries of cells and sectors, obstacles (radio shades, areas with multipath), and mobile trails. Delay, Doppler, signal level and phase shift are automatically adjusted in accordance with motion, angle and position of the terminals relative to the base stations. In Multipath Areas (yellow area in the picture below) the user can define multiple paths with individual delay, attenuation, Dopplrt spread and phade shift. A scenery may include multiple areas with individual settings. QPER futhermore provides a static simulation GUI to enable testers to implement channel models as defined by the 3GPP / 3GPP2 and the WiMax Forum:
The Propagation Effects Replicator seamlessly integrates with Qosmotec's AIS. Both tools can share a common GUI and control server, so an AIS system with numerous handover channels can be combined with a QPER system providing extra channels with full propagation effects simulation under the same GUI.
As an extension option, every channel with 12 (or 24) multipath tabs can be partitioned under software control into 2, 3 or 4 subchannels of the same frequency, providing 6 (12), 4 (8), or 3 (6) taps each. A subchannel emulates one link between MIMO antenna elements of BS and mobile. This way, the number of channels can be increased fourfold. An 8 channel QPER system will enable you to simulate all 16 uplinks and 16 downlinks between 4 BS and 4 MS antenna elements. Furthermore, individual control of phase shift on each link allows tests of smart antenna array pointing by simulating the varying phase shift of signals arriving from different angles of incidence:
Airtrace Ltd. currently provide full pre and post sales support for this product. Fo more information on our current support levels, processes and technical assistance standards please visit out support page. In the unlikely event that the issue cannot be solved quickly and efficiently by our staff, a hotline to the development team shall be made available.
Airtrace Ltd. are the sole distributor of the Qosmotec LTS, QPER and AIS products in the UK.
Telephone: +44 (0)1409 211 424
Managing Director's Mobile: +44 (0)7960 916 567
For further information or to send us an e-mail enquiry please use our contact page.
Qosmotec - Company Description:
Qosmotec Software Solutions is the most flexible provider of standardized and customizable test systems for mobile communication networks. The Qosmotec concept embraces the entire range of network verification via test automation and unattended test execution. It enables network operators and infrastructure vendors to test their complex systems faster, more thoroughly and at lower expense. Airtrace are the UK vendor for the Qosmotec Air Interface Simulator, Propagation Effects Replicator and Lab Test System.
