Patent ID: 7336636

Claim:
A transmission method, comprising: transmitting a plurality of symbols from a base station of a MC-CDMA telecommunication system to a plurality (K) of users, said base station including a plurality (M) of antenna elements; spreading each symbol (d k ) to be transmitted to the plurality of users being with a coding sequence (c k (l)) over a plurality (L) of carriers (l) to produce a plurality of corresponding frequency components; and weighting, at the base station, each frequency component produced by a symbol of a user (k) by a plurality (M) of weighting complex coefficients (w k *(l,m),m=1, . . . ,M) to obtain a plurality (LM) of weighted frequency components (z k m (l)), each weighting coefficient being relative to a user (k), a carrier (l) and an antenna element (m), said plurality of weighting coefficients being determined from estimates of channel coefficients (h k (l,m)) of downlink transmission channels between each antenna element and each user for each carrier frequency.