Adaptive filter circuit having low complexity and flexible structure and device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJoontae Kim, Daeyoung Kim, Hyunseok Yu, Youngik Cho
Life of this patent
Estimating the term…
Abstract
An adaptive filter circuit includes a plurality of filter cores associated with each other and configured to perform a calculation operation on a first target input signal, and an auxiliary core configured to generate cross-terms between block correlation matrices respectively corresponding to kernels that correspond to the first target input signal and provide the cross-terms to the plurality of filter cores, where the plurality of filter cores are further configured to estimate effective channels respectively corresponding to the kernels based on the cross-terms.
Claims20
An adaptive filter circuit comprising:
- a plurality of filter cores associated with each other and configured to perform a calculation operation on a first target input signal;
- and
- an auxiliary core configured to:
- generate cross-terms between block correlation matrices respectively corresponding to kernels that correspond to the first target input signal;
- and
- provide the cross-terms to the plurality of filter cores,
- wherein the plurality of filter cores are further configured to estimate effective channels respectively corresponding to the kernels based on the cross-terms.
A method of operating an adaptive filter circuit comprising a first filter core, a second filter core, and an auxiliary core, the method comprising:
- receiving a first target input signal from a first signal route;
- generating, by the auxiliary core, a first cross-term and a second cross-term between a first block correlation matrix corresponding to a first kernel and a second block correlation matrix corresponding to a second kernel;
- estimating, by the first filter core, a first effective channel of the first target input signal and corresponding to the first kernel by subtracting the second cross-term from a first input vector corresponding to the first target input signal;
- and
- estimating, by the second filter core, a second effective channel of the first target input signal and corresponding to the second kernel by subtracting the first cross-term from a second input vector corresponding to the first target input signal.
A wireless communication device comprising:
- a transceiver comprising a plurality of transmission chains and a plurality of reception chains;
- an adaptive filter circuit comprising filter cores and an auxiliary core configured to remove interference due to at least one of the plurality of transmission chains from a target input signal received through a signal route comprising at least one of the plurality of reception chains;
- and
- a baseband processor configured to process the target input signal from which the interference is removed by the adaptive filter circuit,
- wherein the auxiliary core is configured to generate cross-terms between block correlation matrices corresponding to kernels that correspond to characteristics of the signal route, and
- wherein the filter cores are configured to remove the interference from the target input signal by estimating effective channels corresponding to the kernels based on the cross-terms.
Dependencies are inferred from the claim text.