Patent ID: 7260161
Filing Date: 2007-08-21
Classification: H04B

Abstract:
1. A hybrid multi-user interference cancellation method for canceling interference between a plurality of user signals, comprising: (a) receiving a plurality of external user signals, calculating powers of the user signals, and providing user numbers to the calculated signal powers in their intensity orders; (b) sorting the user numbers in descending order; (c) forming at least one user cluster so that the signal powers following the sorted user numbers may differ less from a central value or a mean value in the same cluster; and (d) performing parallel interference cancellation on the respective user signals within the same cluster, and performing successive interference cancellation between the formed clusters; wherein said forming comprises: configuring a trellis including nodes and branches, the sorted user numbers being provided to the nodes; and forming at least one user cluster including at least one user number from a start node to an arrival node moving along the branches of the trellis.