Patent ID: 7505510
Filing Date: 2009-03-17
Classification: H04B

Abstract:
1. A system for canceling multiple user interference in a communications system wherein a plurality of users communicate over a shared channel, the system comprising: a plurality of configurable multi-user detection (MUD) modules arranged to provide multi-stage MUD, the plurality of configurable MUD modules including a first MUD module and a second MUD module, the first MUD module and the second MUD module respectively comprising: an input for receiving a plurality of discrete values; a gain factor module that is configurable to select a gain factor corresponding to a desired multi-user detection algorithm; and a function module that is configurable to select a non-linear function corresponding to the desired multi-user detection algorithm, wherein a first multi-user detection algorithm corresponding to the first MUD module differs from a second multi-user detection algorithm corresponding to the second MUD module.