A method by an apparatus comprising a chip-level linear turbo equalizer for interference cancellation, the method comprising: determining or receiving a scaling factor for a reliability factor, wherein the scaling factor depends on a system or a receiver design parameter and the reliability factor relates to an averaged reliability of bit estimates at an output of a Soft Input Soft Output, SISO, decoder and to relative power levels of potential undetected bits transmitted on a same carrier; receiving and sampling, in a sampler, an input signal of the apparatus for producing signal samples and providing the signal samples to a determinator and to a generator; determining, in the determinator, power or energy of the input signal of the apparatus based on the signal samples received from the sampler and providing the power or energy of the input signal of the apparatus to a divider; generating, in the generator, an estimated replica of a transmitted desired signal by using the signal samples received from the sampler; subtracting, in a residual processor, the estimated replica of the transmitted desired signal from the input signal of the apparatus for generating a residual signal; determining, in the residual processor, power or energy of the residual signal and providing the power or energy of the residual signal to the divider; and dividing, in the divider, the power or energy of the residual signal, received from the residual processor, by the power or energy of the input signal of the apparatus received from the determinator, and multiplying a result of the division by the scaling factor of the reliability factor for obtaining a reliability factor for adjusting equalizer coefficients of the chip-level linear turbo equalizer. determining or receiving a scaling factor for a reliability factor, wherein the scaling factor depends on a system or a receiver design parameter and the reliability factor relates to an averaged reliability of bit estimates at an output of a Soft Input Soft Output, SISO, decoder and to relative power levels of potential undetected bits transmitted on a same carrier; receiving and sampling, in a sampler, an input signal of the apparatus for producing signal samples and providing the signal samples to a determinator and to a generator; determining, in the determinator, power or energy of the input signal of the apparatus based on the signal samples received from the sampler and providing the power or energy of the input signal of the apparatus to a divider; generating, in the generator, an estimated replica of a transmitted desired signal by using the signal samples received from the sampler; subtracting, in a residual processor, the estimated replica of the transmitted desired signal from the input signal of the apparatus for generating a residual signal; determining, in the residual processor, power or energy of the residual signal and providing the power or energy of the residual signal to the divider; and dividing, in the divider, the power or energy of the residual signal, received from the residual processor, by the power or energy of the input signal of the apparatus received from the determinator, and multiplying a result of the division by the scaling factor of the reliability factor for obtaining a reliability factor for adjusting equalizer coefficients of the chip-level linear turbo equalizer.