CPC H04B 7/0626 (2013.01) [H04B 7/0478 (2013.01); H04B 7/0632 (2013.01); H04B 7/0639 (2013.01); H04B 7/0663 (2013.01)] | 20 Claims |
1. A user equipment (UE), comprising:
at least one processor configured to:
construct a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams;
determine a number of bits for a precoding matrix indicator (PMI) of the precoding matrix;
determine a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix;
compress the space frequency matrix; and
determine a compressed PMI based, at least in part, on the space frequency matrix; and
radio front end circuitry configured to transmit the compressed PMI over a wireless network to a base station (BS).
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