The method and apparatus for demodulating data

The method and apparatus provided by the embodiment of the present invention, the demodulated data. The method comprising: determining the number M reliable channel data bits per data channel and for demodulating the modulation scheme of each data channel reliable bits, where M is a positive integer; each channel for demodulating modulated according to reliable data bits manner, reliable demodulation data bits per channel; the maximum likelihood ML method, the demodulated data channel for each remaining bits except the bits reliably. Embodiments of the present invention, by determining the number of reliable bits for each data channel and for demodulating the modulation scheme of each data channel reliable bits, ML method in accordance with the demodulated data for each channel remaining bits except the bits reliable than the conventional Technically, without demodulation method according to ML channel all of the bits of each data, thereby reducing the complexity of the ML demodulation method.