FIELD: information technology.
SUBSTANCE: method for performing precoding based on a generalised phase shift or precoding based on an extended phase shift in a Multi-Input Multi-Output (MIMO) system employing several sub-carriers, and a transceiver for realising said method are disclosed. A phase-shift-based precoding matrix is generalised by multiplying a diagonal matrix for a phase shift by a unitary matrix for maintaining orthogonality between sub-carriers. In this case, a diagonal matrix part may be extended by multiplying a precoding matrix for removing interference between sub-carriers by a diagonal matrix for a phase shift.
EFFECT: high efficiency of transmitting data owing to generalisation and extension of phase shift based precoding.
8 cl, 8 dwg
