Patent ID: 9001877
Filing Date: 2015-04-07
Classification: H04B

Abstract:
1. A signal processing device for a diversity combining radio receiver, wherein the signal processing device comprises: a plurality of receive branches, wherein each receive branch is adapted to process an input signal originating from a corresponding radio reception path; a joint detector adapted to determine a joint received symbol based on a combined signal, which is a combination of weighted output signals from the plurality of receive branches, wherein, for each receive branch, the output signal of that receive branch is weighted with a branch weight associated with that receive branch; and a control unit adapted to, for each receive branch, determine a branch signal error associated with that receive branch based on the joint received symbol and the input signal of that receive branch, wherein each receive branch comprises an adaptive filter; the control unit is adapted to, for each receive branch, update coefficients of the adaptive filter of that receive branch based on the branch signal error of that receive branch; and the control unit is adapted to determine a joint signal error of the combined signal and, for each receive branch, update coefficients of the adaptive filter of that receive branch based on a weighted signal error combination of the branch signal error of that receive branch and the joint signal error, wherein a weight of the weighted signal error combination is selected based on channel conditions.