Invention Grant
US09270428B2 Method for signaling a precoding in a cooperative beamforming transmission mode 有权
用于在协同波束成形传输模式中用信号通知预编码的方法

Method for signaling a precoding in a cooperative beamforming transmission mode
Abstract:
In a method for operating a secondary station in a network, the secondary station: controlling a transceiver configured for simultaneously receiving transmissions from a first primary station controlling a first cell and at least one second primary station controlling a second cell; selecting a first precoding matrix for the first cell out of a first set of precoding matrices for the first cell; selecting, depending on the first precoding matrix, in accordance with a precoding scheme, a subset out of a second set of precoding matrices for the second cell, the subset comprising at least one precoding matrix for the second cell; selecting a second precoding matrix for the at least one second cell out of the selected subset of precoding matrices; transmitting a first and second indicator representative of the respective first and second precoding matrix; wherein the second precoding matrix is based on the value of the first indicator, so that the amount of data used for transmitting the second indicator is less than the amount of data used for transmitting the first indicator.
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