FIELD: radio engineering, communication.
SUBSTANCE: invention relates to wireless communication engineering and can be used to generate codes. A reference signal (RS) generator includes a sequence generator configured to generate a sequence for the reference signal of a first resource block, a first spectrum spreading unit, a second spectrum spreading unit, a third spectrum spreading unit, a fourth spectrum spreading unit and a mapping unit configured to map elements with spectra thereof, spread by the first and second spectrum spreading units, to the first and second frequency resources of the first resource block, respectively, and map elements with spectra thereof, spread by the third and fourth spectrum spreading units, to the third and fourth frequency resources of the first resource block, respectively.
EFFECT: improved RS randomisation, eliminating the problem of RS transmission power imbalance and satisfying orthogonality requirements in two dimensions - time and frequency.
11 cl, 15 dwg
