Patent ID: 8116411

Claim:
A method to detect data transmitted from multiple transmit antennas, said method comprising: receiving the transmitted data using multiple receive antennas; detecting the transmitted data from the multiple receive antennas using a zero-forcing (ZF) data detector, said ZF data detector producing an output data block; detecting the transmitted data from the output data block using a likelihood ascent search (LAS) data detector, said detection step using the LAS data detector includes: i. selecting the output data block as a starting data block and calling the starting data block as previous data block; ii. defining a set of indices of bits to be checked for possible flip in the previous data block as a check candidate set; iii. applying an update rule to obtain updated data block using the previous data block and the check candidate set, wherein the update is made in such a manner that change in likelihood is positive; and iv. checking if the updated data block and several consecutive previous data blocks are the same; if yes, declare the updated data block as the detected data block; if no, make updated data block as previous data block and go to step ii, and wherein the transmit and receive antennas include at least ten in number.