| 摘要 |
A radio channel estimator 100 for estimating a radio channel, the radio channel having at least a first dimension and a second dimension, the first and second dimensions being different and corresponding to a frequency, a time or a spatial dimension. The radio channel estimator 100 comprises a receiver 100 for receiving reference symbols being separated in the first dimension and being separated in the second dimension, a processor 120 for processing the reference symbols to obtain a reference radio channel estimate for each of the separated reference symbols, a radio channel condition detector 130 for detecting a first radio channel condition, in which the radio channel has a higher correlation in the first dimension than in the second dimension, or a second radio channel condition, in which the radio channel has a higher correlation in the second dimension than in the first dimension. The radio channel estimator 100 further comprises an interpolator 140 for determining a radio channel estimate lying between at least two reference radio channel estimates by interpolating between two reference radio channel estimates of the first dimension, when the first radio channel condition is detected and by interpolating between two reference radio channel estimates of the second dimension, when the second radio channel condition is detected.
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