How to Verify eCall Minimum Data Transmission

+ eCall Conformance Test Solution

Verify Emergency Data Transfer

Minimum Set of Data (MSD) transmission verification requires an in-vehicle system, controlled Global Navigation Satellite System (GNSS) coordinates, an emulated cellular network, and a Public Safety Answering Point (PSAP). The GNSS input provides the position information used by the in-vehicle system to compile the MSD, while the emulated network and PSAP create the emergency-call path needed to transfer it. Keysight source material identifies vehicle identification, location, and timestamp among the information carried in the MSD and describes verification of the correct raw MSD as a core part of the eCall and ERA-GLONASS test workflow.

Engineers trigger the emergency call and observe whether the in-vehicle system sends the expected raw MSD to the PSAP before the voice portion of the session is established. The controlled setup allows the same data-transfer sequence to be repeated without dependence on a live mobile network and with static or dynamic GNSS coordinates. Supporting eCall material also calls for logs of results, acknowledgements, negative acknowledgements, and timers to aid troubleshooting, and notes support for MSD content extensions and SMS-based MSD transfer in applicable workflows. By repeating the sequence with known position inputs, engineers can compare the transferred emergency data and call behavior against the relevant conformance requirements.

eCall Data Transmission Solution

Perform the test by supplying known GNSS coordinates to the in-vehicle system, triggering the emergency call, and monitoring the raw MSD transfer to the emulated PSAP. The solution combines GNSS simulation, cellular-network emulation, PSAP software, and automated test execution so the data exchange can be repeated without a live mobile network. Engineers can verify that the emergency call is triggered and that the correct raw MSD reaches the receiving side, while logs, acknowledgements, negative acknowledgements, and timers support troubleshooting. Static and dynamic GNSS inputs allow controlled variation of the position information used to compile the MSD.

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