Patent ID: 7277407

Claim:
A Node B apparatus having at least two antennas, for controlling a diversity of data transmitted through the antennas, comprising: a first spreader for spreading first data and outputting a first spread signal; a second spreader for spreading second data and outputting a second spread signal; a first multiplier for multiplying a first weight for a first antenna by the first spread signal output from the first spreader, and outputting a first weighted spread signal; a second multiplier for multiplying a second weight for a second antenna by the first spread signal output from the first spreader, and outputting a second weighted spread signal; a third multiplier for multiplying a third weight for the first antenna by the second spread signal output from the second spreader, and outputting a third weighted spread signal; a fourth multiplier for multiplying a fourth weight for the second antenna by the second spread signal output from the second spreader, and outputting a fourth weighted spread signal; a first adder for adding the first weighted spread signal to the third weighted spread signal, and transmitting the added signal through the first antenna; a second adder for adding the second weighted spread signal to the fourth weighted spread signal, and transmitting the added signal through the second antenna; and a weight generator for determining the first to fourth weights from feedback information received from a UE (User Equipment), and providing the determined first to fourth weights to the first to fourth multipliers, respectively.