Mobile World Congress

By fully automated, unattended 24/7 testing the LTS-LTE call generator does away with poorly organized or documented manual testing, inefficient usage of testing time and poorly reproducible test results

LTS drives real mobile terminals under stored program control for functional tests, generation of voice & data traffic, KPI measurement or in billing verification of the mobile network. Every test step performed and every resulting test verdict are retained in a database for test analysis. Almost any mobile type can be used with LTS, in particular state-of-the-art LTE data sticks. By using dedicated CPUs to drive small groups of terminals each, the system can be scaled up and extended as desired.

LTS-LTE provides the following test features:

• LTE Data speeds up to 100 Mbps downlink / 50 Mbps uplink
• Adjustable bandwidth in uplink and downlink.
• Support of various data transmission protocols (ICMP, FTP, HTTP, …)
• Measurements of KPIs such as payload and network throughput, delay, call setup times, MOS etc.
• Direct TCP dump to Wireshark for detailed traffic flow analysis.
• VoIP and speech call & quality test
• Adjustable and synchronised graphical result views for live monitoring or post processing.

The call generator can be combined with our handover testing platform. The signal between base station and mobile is modified in amplitude and phase to simulate changing location and - important for MIMO - orientation of the mobile terminals.

RF Guard Mobile Shielding Solution

Another newcomer in our portfolio is the RF Guard shielding solution for individual terminals. Employed in laboratory setups, e.g. for call generation & handover tests within a lab network, the ultra-compact (16 x 11 x 6 cm) enclosure achieves an amazing 50 dB isolation from external networks for 2G, 3G, and 4G bands. The RF Guard enclosure provides 2 separate antenna connectors for MIMO terminals, and most importantly a filtered USB 2.0 connection to the terminal for remote operation and data transfer without compromising the screening performance. The USB power connection to the terminal can be interrupted by software command to enforce a reset or simulate a drop-out. 8 RF Guard units fit a single19” extractable shelf, consuming only 2U of rack space.

 Thus, the RF guard is perfectly suited to supplement our call generation and channel emulation equipment.