B.3 High speed train scenario

36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception

The high speed train condition for the test of the baseband performance is a non fading propagation channel with one tap. Doppler shift 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 eNodeB, and is eNodeB Railway track distance, both in meters; is the velocity of the train in m/s, is time in seconds.

Doppler shift and cosine angle are given by equation B.3.1 and B.3.2-B.3.4 respectively, where the required input parameters listed in table B.3-1 and the resulting Doppler shift shown in Figure B.3-1 are applied for all frequency bands.

Table B.3-1: High speed train scenario

Parameter	Value
	300 m
	2 m
	300 km/h
	750 Hz

NOTE 1: Parameters for HST conditions in table B.3-1 including and Doppler shift trajectories presented on figure B.3-1 were derived from Band 7 and are applied for performance verification in all frequency bands.

Figure B.3-1: Doppler shift trajectory

For 1×2 antenna configuration, the same h(t,τ) is used to describe the channel between every pair of Tx and Rx.

For 2×2 antenna configuration, the same h(t,τ) is used to describe the channel between every pair of Tx and Rx with phase shift according to .