| 摘要 |
A method includes receiving in a mobile communication terminal a precoded Multiple-Input Multiple-Output (MIMO) signal, which includes first and second signal components transmitted at respective different first and second polarizations. A difference between respective signal magnitudes of the first and second signal components received in the terminal is estimated in the terminal. Feedback information, which includes at least an indication of the difference between the signal magnitudes, is calculated and transmitted from the terminal.
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