6A LTE test models requiring GNSS support

37.571-43GPPPart 4: Test suitesRelease 16TSUser Equipment (UE) conformance specification for UE positioning

Several LTE test models specified in TS 36.523-3 [6] require the presence of a GNSS emulation. Those are:

– V2X services: refer to TS 36.523-3 [6] clause 4.2.11

– Aerial UE: refer to TS 36.523-3 [6] clause 4.2.12

The positioning simulator shall be capable of generating and broadcasting the following GNSS: GPS, Galileo, GLONASS and BDS.

The ASPs at POS Port for the both test models are used to:

– Load a pre-defined test scenario into the positioning simulator.

– Start or stop generating and broadcasting satellite signals from the positioning simulator.

The ASPs at POS Port for V2X services are additionally used to:

– Trigger the positioning simulator to move in the test scenario to the next geographical area or zone.

– Trigger the positioning simulator to switch on/off the transmitter without stopping the UTC time sequence.

The ASPs at POS Port for aerial UE communication are additionally used to:

– Set an initial altitude above the sea level. Geographical latitude and longitude are defined in the test scenario and remain constant during the test execution.

– Trigger the positioning simulator to simulate a vertical movement in the test scenario towards a specified altitude level.