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Methods and apparatus are provided for beam forming and information feedback are provided. Signals for beams to be transmitted through corresponding antenna ports, are gen erated. The beams are formed by precoding the signals with beam forming vectors. The beams are sorted into a number of resource reuse groups based on a resource that is to be shared. The beams are transmitted, using resources allocated per group, to a receiver. Feedback information is generated on at least one antenna port, based on the received beams.