A METHOD AND SYSTEM FOR BEAMFORMING IN A MULTIPLE USER MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) COMMUNICATION SYSTEM USING A CODEBOOK

摘要

A beam forming method and a system using a code book in a multi user multiple input multiple output communications system including a plurality of circuits enabling the production of an interference cancellation matrix are provided to generate beam forming matrix based on beam forming matrix and precoding matrix. A beam forming system comprises the production of an interference cancellation matrix in which the composite signal is expressed as a plurality of annex signal or a plurality of circuits. Each of a plurality of annex signals is generated based on the corresponding to data stream signal among a plurality of data stream signals. One or a plurality of circuits based on the generated interference cancellation matrix is generated. A plurality of signals for transmission one or a plurality of circuits is generated based on the generated precoding matrices and a plurality of data stream signals.