AEROFLEX has introduced the TM500 LTE test mobile designed to address the challenges of 3GPP LTE (3G long term evolution) network infrastructure development test and rollout.
The TM500 LTE’s extensive Layer 1, Layer 2 and higher layer test features make it an indispensable testing peer.
It provides complete visibility into even the lowest layers of the radio modem by generating the detailed diagnostic data needed for engineers to verify the required functionality and optimise network operation and performance.
It targets data rates in excess of 100 Mbit/s over the downlink and 50 Mbit/s over the uplink when operating in 20MHz spectrum allocation, and climbing to peak rates of 300Mbps in the downlink for the highest category UEs.
LTE technology also ensures high performance for speeds up to 120km/h and mobility support across the cellular network for speeds up to 350km/h.
In addition to higher data rates, wide-area coverage is also being targeted. The throughput, efficiency and mobility targets must be met for 5km cells through to 30km cells and up to 100km cells.
Reduced latency is also being addressed with a target for U-plane latency less than 5ms in unload conditions with small IP packets.
The TM500 LTE incorporates test, logging, and measurement features at all layers of the protocol.
This includes advanced MIMO tests to verify that the network appropriately handles the MIMO related signaling and correctly applies the MIMO modes, which can be realised with or without the need for an external fading simulator.
Graphical displays and charts give a visualisation of the signal quality and the system status enabling engineers to quickly characterise and isolate problems.
It is also possible to override signaling, or even force data corruption, to enable simulation of abnormal conditions in order to test the system response and robustness or expose difficult problems.
The TM500 LTE also supports full local or remote automation of test scripts, which is essential when building extensive and repeatable testing.
The test script configuration tool enables the easy generation and management of scripts that can then be initiated manually or by an executive test entity.
The TM500 also makes it possible to alter parameters in real time to extend test coverage across a wide range of different configurations used in a live system.
This enables early detection of software bugs that may not otherwise be found until much later in the development cycle when diagnosing and rectifying errors is typically much more expensive.
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