B.4 Moving propagation conditions
36.1043GPPBase Station (BS) radio transmission and receptionEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TS
Figure B.4-1 illustrates the moving propagation conditions for the test of the UL timing adjustment performance. The time difference between the reference timing and the first tap is according Equation (B.4-1). The timing difference between moving UE and stationary UE is equal to Δτ – (TA −31)×16Ts. The relative timing among all taps is fixed. The parameters for the moving propagation conditions are shown in Table B.4-1.
Figure B.4-1: Moving propagation conditions
(B.4-1)
Table B.4-1: Parameters for UL timing adjustment
|
Parameter |
Scenario 1 |
Scenario 2 |
|
Channel model |
Stationary UE: AWGN Moving UE: ETU200 |
AWGN |
|
UE speed |
120 km/h |
350 km/h |
|
CP length |
Normal |
Normal |
|
A |
10 s |
10 s |
|
|
0.04 s-1 |
0.13 s-1 |
NOTE 1: Multipath fading propagation conditions for Scenario 1 were derived for Band 1 with additional rounding applied to the Doppler frequency calculated for the specified UE speed.
NOTE 2: In Scenario 2, Doppler shift is not taken into account.