Method for signaling a precoding in a cooperative beamforming transmission mode

摘要

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.

主权项

1. A method for operating a secondary station in a network, the method comprising:
in the secondary station: a controller performing the acts of: controlling a transceiver to receive transmissions from a first primary station controlling a first cell and to further receive transmissions from at least one second primary station controlling at least one respective second cell; selecting a first precoding matrix for the first cell from a first set of precoding matrices associated with the first cell; selecting a second precoding matrix for the second cell from a subset of precoding matrices associated with the second cell, the subset being dependent upon the first precoding matrix in accordance with a precoding scheme; determining a first and second indicator to identify the first and second precoding matrix respectively; and controlling the transceiver to transmit the first and second indicator; wherein an amount of data transmitted to transmit the second indicator is less than an amount of data transmitted to transmit the first indicator.