High-speed train MIMO channel propagation conditions
the high-speed train (HST) MIMO channel model specified in TS 36.101  and TS 36.104 . The high-speed train propagation
condition is composed of a non-fading single path of unit amplitude
and zero phase with a changing Doppler shift. The columns of matrix
out = lteHSTChannel(
to the channel input waveforms at each transmit antenna. The channel
in with the characteristics specified
model. The matrix
the filtered waveform. Each column of
to the waveform at one of the receive antennas.
Model High-Speed Train Propagation Channel
Generate a frame and filter it with the high-speed train channel model.
Create a reference channel configuration structure initialized to
'R.10'. Generate a waveform.
rmc = lteRMCDL('R.10'); [txWaveform,txGrid,info] = lteRMCDLTool(rmc,[1;0;1]);
Initialize a propagation channel configuration structure for high-speed train profile. Pass the transmission waveform through the propagation channel.
chcfg.NRxAnts = 1; chcfg.Ds = 100; chcfg.Dmin = 500; chcfg.Velocity = 350; chcfg.DopplerFreq = 5; chcfg.SamplingRate = info.SamplingRate; chcfg.InitTime = 0; rxWaveform = lteHSTChannel(chcfg,txWaveform);
model — High-speed train propagation channel model
High-speed train propagation channel model, specified as a structure containing these fields.
|Parameter Field||Required or Optional||Values||Description|
Positive scalar integer
Number of receive antennas
Train-to-eNodeB double initial distance, in meters.
eNodeB to railway track distance, in meters
Train velocity, in kilometers per hour
Maximum Doppler frequency, in Hz.
Input signal sampling rate, the rate of each sample in the rows
of the input matrix,
Doppler shift timing offset, in seconds
Transmit antenna number normalization, specified as:
in — Channel input waveforms at transmit antennas
Channel input waveforms at transmit antennas, specified as a
in has size T-by-P,
where P is the number of antennas and T is
the number of time-domain samples. These waveforms are filtered with
the high-speed train channel model with the Doppler shift as specified
in parameter structure
Complex Number Support: Yes
out — Filtered waveform
Filtered waveform, returned as a numeric matrix. Each column
out corresponds to the
waveform at one of the receive antennas.
Complex Number Support: Yes
 3GPP TS 36.101. “Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) Radio Transmission and Reception.” 3rd Generation Partnership Project; Technical Specification Group Radio Access Network. URL: https://www.3gpp.org.
 3GPP TS 36.104. “Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) Radio Transmission and Reception.” 3rd Generation Partnership Project; Technical Specification Group Radio Access Network. URL: https://www.3gpp.org.