5 results about "Precoding" patented technology

A method for communicating with a plurality of communication devices (UEs) using a phased array antenna system including an array of antenna elements, the method involving: receiving a plurality of port signal streams, wherein the plurality of port signal streams was obtained by preceding a plurality of data streams., each data stream of the plurality of data streams intended for a different corresponding UE; and within the phased array antenna system, processing the plurality of port, signal streams to (1) undo the preceding that was performed on the plurality of data streams, and (2) generate via the array of antenna elements a plurality of transmit beams, wherein each transmit beam is directed towards a corresponding different UE among the plurality of UEs and carries a corresponding transmit signal that is derived exclusively from the data stream among the plurality of data streams that is intended for that UE.

The embodiments herein relate to method performed by a radio network node (700), a network node (700), a method performed by a UE (500) and a UE (500) for reducing feedback overhead. The method perform by the UE (500) comprises at least: (401) decomposing each entry corresponding to a (i, j)-th combining coefficient of a precoder matrix into at least two coefficients; (402) quantizing, separately,each of said at least two coefficients with a least one bit, and (403) reporting information related to at least one phase value or at least one amplitude value or at least one phase value and an amplitude value of said quantized coefficient.