Patent ID: 8451922

Claim:
A method of transmitting data blocks at a transmitting end having M transmit antennas in a multiple input multiple output (MIMO) wireless communication system, M being greater than 1, the method comprising: selecting N transmit antennas from among the M transmit antennas, wherein N is less than M, wherein the selection is based on feedback information, wherein the selected N transmit antennas are used for transmitting the data blocks, and wherein the other (M−N) transmit antennas are not used for transmitting the data blocks; attaching cyclic redundancy check (CRC) to each of the data blocks; allocating each of the CRC-attached data blocks to each of the selected N transmit antennas; and transmitting, from the transmitting end to a receiving end, each of the CRC-attached data blocks via each of the selected N transmit antennas, wherein the CRC is independently attached to each of the data blocks, wherein the feedback information is based on channel status estimation of the M transmit antennas, wherein the feedback information includes indices on which the selection of the N transmit antennas is based, wherein the feedback information is received by the transmitting end from the receiving end, wherein at least one predetermined signal is transmitted via at least one of the M transmit antennas, and wherein, if information indicating that a specific predetermined signal, which is transmitted via a specific transmit antenna, is not correctly received by the receiving end is received by the transmitting end from the receiving end, the specific predetermined signal is retransmitted via the specific transmit antenna.