| 摘要 |
A method and apparatus for QR decomposition-based multiple-input multiple-output (MIMO) detection and soft bit generation are disclosed. QR decomposition is performed on the MIMO channel matrix H to compute a Q matrix and an R matrix such that H=QR. The R matrix, or diagonal elements of the R matrix, is stored in a memory. An R matrix is computed by dividing elements in each row of the R matrix with a corresponding diagonal element of the R matrix. A Y vector is computed by dividing each element of the received symbol vector Y with a corresponding diagonal element of the R matrix. A tree search process is performed using the R matrix and the Y vector to generate an approximate maximum likelihood (ML) estimate of transmitted symbols.
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