| 摘要 |
The present invention relates to a method for operating a primary station comprising a transceiver for communicating with a plurality of secondary stations, said transceiver including at least two antennas, the method comprising the primary station transmitting to a secondary station for a single spatial channel at least one first set of reference symbols with a first antenna and at least one second set of reference symbols with a second antenna, the second set of reference symbols being orthogonal to the first set of reference symbols.
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