| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the number of computing elements required for MLD processing in the QRM-MLD of 4×4MIMO. <P>SOLUTION: A circuit 21xb for computing the partial log likelihood L3 of a third stage includes: a first arithmetic circuit 51 for executing a part of operation in common to transmission signal component candidates x3 whose real part is in common; a second arithmetic circuit 52 for executing part of the operation in common to the transmission signal component candidates x3 whose imaginary part is in common; and a third arithmetic circuit 53 for executing the operation in common to the transmission signal component candidates x3 whose distance from an origin is in common. <P>COPYRIGHT: (C)2008,JPO&INPIT |
