The present invention relates to a method and system for transmitting in a
wireless communication system, a transmission signal divided into at
least two signal parts by using transmission beams of at least two
subarrays (SA1, SA2) of an antenna array. The transmission beam of at
least one of the at least two subarrays (SA1, SA2) is at least in part
controlled based on a feedback information received from the receiving
means (20). Thus, several beams are generated using an antenna array with
more than two antennas, wherein an open-loop diversity is used to split
the transmission between the beams, and a closed-loop feedback-based
diversity is used to optimize the beams, as well as possibly the division
of power between the beams. Thereby, the amount of feedback can be
controlled so as to achieve significant feedback gain in a multi-antenna
transmission even with non-maximal amounts of feedback.