B.3 High speed train condition

36.1413GPPBase Station (BS) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA)Release 17TS

High speed train conditions are as follows:

Scenario 1 / Scenario 1-LTE500a / Scenario 1-LTE500b: Open space

Scenario 3 / Scenario 3-LTE500a / Scenario 3-LTE500b: Tunnel for multi-antennas

The high speed train conditions for the test of the baseband performance are two non-fading propagation channels in both scenarios. For BS with Rx diversity defined in scenario 1 / Scenario 1-LTE500a / Scenario 1-LTE500b, the Doppler shift variation is the same between antennas.

Doppler shift for both scenarios is given by:

(B.3.1)

where is the Doppler shift and is the maximum Doppler frequency. The cosine of angle is given by:

, (B.3.2)

, (B.3.3)

, (B.3.4)

where is the initial distance of the train from BS, and is BS-Railway track distance, both in meters; is the velocity of the train in m/s, is time in seconds.

Doppler shift and cosine angle is given by equations B.3.1 and B.3.2-B.3.4 respectively, where the required input parameters listed in Table B.3-1 and B.3-2, and the resulting Doppler shift is shown in Figure B.3-1, B.3-2, B.3-3, B.3-4, B.3-5 and B.3-6 are applied for all frequency bands.

Table B.3-1: Parameters for high speed train conditions for UE velocity up to 350 km/h

Parameter	Value
	Scenario 1	Scenario 3
	1000 m	300 m
	50 m	2 m
	350 km/h	300 km/h
	1340 Hz	1150 Hz

Table B.3-2: Parameters for high speed train conditions for UE velocity up to 500 km/h

Parameter	Value
	Scenario 1-LTE500a	Scenario 3-LTE500a	Scenario 1-LTE500b	Scenario 3-LTE500b
	1000 m	300 m	1000 m	300 m
	50 m	2 m	50 m	2 m
	500 km/h	500 km/h	500 km/h	500 km/h
	1944 Hz	1944 Hz	1750 Hz	1750 Hz

NOTE 1: Parameters for HST conditions in table B.3-1 including and Doppler shift trajectories presented on figures B.3-1 and B.3-2 were derived from Band 1 and are applied for performance verification in all frequency bands.

NOTE 2: Parameters for scenario 1-LTE500a and scenario 3-LTE500a in table B.3-2 including and Doppler shift trajectories presented on figures B.3-3 and B.3-4 were derived from Band1 and are applied for performance verification in all frequency bands.

NOTE 3: Parameters for scenario 1-LTE500b and scenario 3-LTE500b in table B.3-2 including and Doppler shift trajectories presented on figures B.3-5 and B.3-6 were derived from Band3 and are applied for performance verification in all frequency bands.

Figure B.3-1: Doppler shift trajectory for scenario 1

Figure B.3-2: Doppler shift trajectory for scenario 3

Figure B.3-3: Doppler shift trajectory for scenario 1-LTE500a

Figure B.3-4: Doppler shift trajectory for scenario 3-LTE500a

Figure B.3-5: Doppler shift trajectory for scenario 1-LTE500b

Figure B.3-6: Doppler shift trajectory for scenario 3-LTE500b