Turbo decoder with early termination of iterations

Details Turbo decoder with early termination of iterations Turbo decoder with early termination of iterations

H - Electricity

03

M

H03M 13/29 (2006.01)

Patent

CA 2522498

An apparatus and method is disclosed for decoding a received sequence of symbols using a decoding process that comprises a plurality of decoder iterations. According to one embodiment of the invention, a method comprises determining whether a pre-determined decoder termination threshold metric has been met; only if the threshold metric has been met, determining whether a decoder termination test based on a cyclic redundancy check code has been passed; and, only if the cyclic redundancy check test has been passed, terminating the decoder iterations.

L'invention porte sur un appareil et sur un procédé de décodage d'une séquence reçue de symboles utilisant un processus de décodage qui comprend une pluralité d'itérations de décodage. Selon un mode de mise en oeuvre de l'invention, le procédé consiste à déterminer si une métrique de seuil de terminaison de décodage prédéterminée a été effectuée et, seulement si c'est le cas, déterminer un test de terminaison de décodage basé sur un code de contrôle de redondance cyclique a été fait; et, seulement si ce test a été fait, terminer les itérations de décodage.

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