Patent ID: 8687740

Claim:
A receiver for receiving a layer-modulated signal, the receiver comprising: a base layer decoding unit configured to calculate a bit metric including code bit information of a base layer based on a reception signal and decode an information bit of the base layer; and at least one enhancement layer decoding unit configured to decode an information bit of an upper layer based on decoding results of a lower layer, wherein the base layer decoding unit and the at least one enhancement layer decoding unit are sequentially connected according to an order of corresponding layers, and wherein the base layer decoding unit comprises: a base layer deinterleaving unit configured to deinterleave the reception signal to generate a deinterleaved signal; a base layer bit metric calculation unit configured to calculate the bit metric of the base layer including the code bit information of the base layer based on the deinterleaved signal; a base layer branch metric calculation unit configured to calculate a branch metric of the base layer based on the bit metric of the base layer; and a base layer decoding unit configured to decode the information bit of the base layer based on the branch metric of the base layer.