Method and apparatus for interference decorrelation in time...

H - Electricity – 04 – B

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H04B 1/12 (2006.01) H04B 7/08 (2006.01) H04L 1/02 (2006.01)

Patent

CA 2252101

Receivers and methods for receiving transmitted symbols are disclosed in which techniques are applied to jointly combat fading, time dispersion, and interference that is correlated in both space and time. These objects are accomplished by, for example, providing an inverse impairment correlation sequence estimate to the branch metric processor in addition to a channel estimate. The branch metric processor can then use this additional information to provide branch metrics that take into account the time correlation of impairment to improve the symbol hypotheses.

L'invention concerne des récepteurs et des procédés pour recevoir les symboles transmis, avec lesquels des techniques sont mises en oeuvre pour combattre, en même temps, l'évanouissement, la dispersion temporelle et les interférences corrélées, aussi bien dans l'espace que dans le temps. On atteint ces objectifs, par exemple, en fournissant une estimation de la séquences de corrélation de la dégradation inverse à un processeur de la métrique des branches, en plus d'une estimation des canaux. Le processeur de la métrique des branches peut, ensuite, utiliser cette information additionnelle pour fournir une métrique de branche qui prend en compte la corrélation temporelle de la dégradation pour améliorer les hypothèses de symboles.

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