Method and apparatus of codebook-based single-user closed-loop transmit beamforming (SU-CLTB) for OFDM wireless systems

A transmitter, comprising:

• a transmitting processor configured to perform a Orthogonal Frequency Division Multiplexing transmission;
• a plurality of antennas configured to broadcast a plurality of antenna array response vectors of a codebook to a receiver, the response vectors generated according to a plurality of codewords of a codebook, the codebook based upon an antenna configuration comprising at least one of a uniform linear array (ULA) and a uniform circular array (UCA), an antenna spacing and a number of antennas of a transmitter;
• and
• a beamformer configured to form an antenna beam utilizing feedback information from the receiver, the feedback information comprising a codeword selected at the receiver from among a plurality of codewords within a codebook known to the receiver in dependence upon a predetermined performance criteria of a data communication system and in dependence upon the response vectors.

A method for receiving data, the method comprising:

• receiving a plurality of antenna array response vectors generated according to a plurality of codewords of a codebook, the codebook based upon an antenna configuration comprising at least one of a uniform linear array (ULA) and a uniform circular array (UCA), an antenna spacing and a number of antennas of a transmitter;
• selecting a codeword from among the plurality of codewords within the codebook in dependence upon a predetermined performance criteria of a data communication system and in dependence upon the received response vectors;
• receiving and processing data signals in dependence upon the selected codeword within the codebook;
• and
• feedbacking to the transmitter information comprising the codeword selected by the receiver.

A receiver, comprising:

• a plurality of receiving antennas configured to receive a plurality of antenna array response vectors of a codebook to a receiver, the response vectors generated according to a plurality of codewords of a codebook, the codebook based upon an antenna configuration comprising at least one of a uniform linear array (ULA) and a uniform circular array (UCA), an antenna spacing and a number of antennas of a transmitter;
• an antenna beam selector configured to select a codeword among the plurality of codewords within the codebook in dependence upon a predetermined performance criteria of a data communication system and independence upon the broadcasted response vectors, and to feed back information comprising the codeword selected by the receiver;
• and
• a receiving processor configured to perform an Orthogonal Frequency Division Multiplexing reception in dependence upon the selected codeword within the codebook.

A method of data communication, comprising:

• broadcasting, at a transmitter, a plurality of antenna array response vectors of a codebook to a receiver, the response vectors generated according to a plurality of codewords of a codebook, the codebook based upon an antenna configuration comprising at least one of a uniform linear array (ULA) and a uniform circular array (UCA), an antenna spacing and a number of antennas of the transmitter, and the response vectors;
• receiving, at the receiver, the broadcasted response vectors;
• selecting, at the receiver, an codeword among the plurality of codewords within the codebook in dependence upon a predetermined performance criteria of a data communication system and in dependence upon the received broadcasted response vectors;
• feedbacking to the transmitter, at the receiver, information comprising the codeword selected by the receiver;
• selecting, at the transmitter, a beamforming process based upon the feedback information from the receiver;
• transmitting, at the transmitter, data signals by utilizing the selected beamforming process;
• and
• receiving and processing, at the receiver, the data signals in dependence upon the selected codeword within the codebook.