H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 13/00 (2006.01) H03M 13/25 (2006.01) H03M 13/29 (2006.01) H03M 13/39 (2006.01) H03M 13/45 (2006.01)
Patent
CA 2340364
The present invention is a novel and improved technique for decoding with particular application to turbo, or iterative, coding techniques. In accordance with one embodiment of the invention a system for decoding includes a channel deinterleaver RAM for storing a block of symbol estimates and for reading out at least three different portions of said block in substantially simultaneous fashion. A set of 3 state metric calculators receives the three portions in a substantially simultaneous fashion and generate corresponding sets of state metric calculations from said three portions of the channel deinterleaver block.
La présente invention concerne une technique nouvelle et perfectionnée de décodage, cette technique s'appliquant notamment aux techniques de codage turbo ou itératif. Dans un mode de réalisation de l'invention, un système de décodage comprend une mémoire vive de dispositif de désentrelacement de canaux destinée à mémoriser un bloc d'estimations de symboles et à lire au moins trois parties différentes de ce bloc de façon sensiblement simultanée. Une série de trois calculateurs métriques d'états reçoit les trois parties de façon sensiblement simultanée et génère des séries correspondantes de calculs métriques d'états à partir de ces trois parties du bloc de désentrelacement de canaux.
Qualcomm Incorporated
Smart & Biggar
LandOfFree
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