METHOD FOR REPAIRING AND DECODING AIR INTERFACE VOICE FRAME, AND SIGNAL SOURCE SIDE INFORMATION ACQUISITION METHOD AND DEVICE

摘要

Embodiments of the present invention relate to the field of communications, and provide a method for repairing and decoding an air interface voice frame, and a signal source side information acquisition method and device, which can improve the bit error rate and frame error rate performance. The method comprises: acquiring parameters formed of decoding bits; performing reliability calculation on the parameters to obtain soft information corresponding to the parameters and a parameter set containing the parameters which have been corrected using the soft information; performing first cyclic redundancy check on the corrected parameter set; if the first cyclic redundancy check fails, flipping a parameter satisfying a bit flipping rule in the parameter set after determining that the parameter set satisfies a preset rule, so as to obtain a flipped parameter set; performing second cyclic redundancy check on flipped parameter set; and if the second cyclic redundancy check is successful, saving and outputting the flipped parameter set. The embodiment of the present invention is used for joint decoding of signal source channels.