Wireless channel prediction technique aiming at railcar traffic
A technology of wireless channel and prediction method, applied in baseband system components and other directions, can solve the problems of limited prediction accuracy and short prediction time, and achieve the effect of reducing the number of
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[0025] Theoretically, the channel state information is determined by the propagation path and time of the radio wave. If all the scatterer environment (the physical position of the scatterer, the reflection coefficient and the relative position to the transceiver antenna) from transmission to reception are known, Then the channel state information can be accurately predicted according to the incoming wave direction and arrival time of a specific location. In the rail traffic environment, most of the scattering objects are stationary, and the time-varying channel is mainly caused by the movement of the train itself. In fact, the channel state information of a train at a certain position can be obtained through the statistics of multiple measurement data at this point. Based on this idea, the present invention proposes a wireless channel prediction method applied to rail transit.
[0026] The following examples illustrate the application of the present invention in rail transit...
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