Siano Mobile Silicon Ltd.

Tomer Yablonka

Roy Oren

A method includes receiving an input signal carrying transmitted values by a receiver, which includes a decision device that produces estimates of the transmitted values. The input signal is filtered using a forward filter to produce a forward-filtered signal, and the estimates of the transmitted values are filtered using a backward filter to produce a backward-filtered signal. The decision device is applied to a composite signal produced from the forward-filtered and backward-filtered signals, so as to produce the estimates of the transmitted values. An accuracy of the estimates of the transmitted values is assessed, and coefficients of the forward filter are adapted depending on the assessed accuracy.

Forward filter training scheme

Apparatus includes a slave equalizer chain, which includes a first decoder and a first adaptive filter including first coefficients, and is configured to filter a first signal using the first adaptive filter to produce a first filtered signal, to decode the first filtered signal using the first decoder to generate a first output, and to adapt the first coefficients based at least on the first output. A master equalizer chain includes a second decoder and a second adaptive filter including second coefficients, and is configured to filter a second signal using the second adaptive filter to produce a second filtered signal, to calculate a weighted combination of the second filtered signal and the first filtered signal produced in the slave equalizer chain, to decode the weighted combination using the second decoder to generate a second output, and to adapt the second coefficients based at least on the second output.

Turbo equalization for diversity receivers

A method for communication includes receiving a signal carrying data including multiple data units using at least first and second reception channels. The data units are encoded with first and second codes such that, when the data units are arranged in rows and columns, the rows are encoded with the first code and the columns are encoded with the second code. The data units received by the first and second reception channels are selectively combined to produce composite data, which includes at least one row or column that includes a first data unit received from the first reception channel and at least a second data unit received from the second reception channel. The first and second codes for the composite data are decoded, including the at least one row or column, so as to reconstruct the data.

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Tel Aviv, Israel

Tomer Yablonka