HYBRID PRECODER

A method employing precoding, performing gain coordination between at least one of at least two transmitters that define a transmitter side and respective at least one receiver of at least two receivers that define a receiver side that are communicatively coupled via a plurality communication channels over a plurality of subcarrier frequencies, the method comprising the procedures of calculating precoding coefficients for each of said subcarrier frequencies, at said transmitter side; for at least part of said subcarrier frequencies, determining a gain scaling factor, normalizing a respective transmitted output signal from each of said at least two transmitters, limited by respective power spectral density (PSD) values; and applying substantially simultaneously said gain scaling factor to at least one of said at least two transmitters and respective at least one of said at least two receivers, according to respective determined said gain scaling factor.