H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 13/00 (2006.01) H04B 7/208 (2006.01) H04L 27/26 (2006.01)
Patent
CA 2533443
The present invention provides an iterative decoding circuit for a wireless multiuser communications receiver comprising a first signal processing means for receiving at least one received signal, said first signal processing means comprising at least two linear iterative filters such that the first linear iterative filter provides an estimate of a selected received signal to an estimated signal output and a second linear iterative filter provides estimates of at least one other received signal, delayed by one iteration cycle, to an input of said first linear iterative filter, a second signal processing means for receiving the estimated signal output of the first linear iterative filter and providing a further received signal estimate to the input of the first signal processing means in a succeeding iteration cycle of the decoding circuit. The application also includes a method of communication with packet sample hypothesis and a method of communicating using estimating time varying channel impairments.
L'invention concerne un circuit de décodage itératif destiné à un récepteur de radiocommunication multi-usagers sans fil, comprenant des premiers moyens de traitement du signal qui reçoivent au moins un signal reçu, ces premiers moyens de traitement du signal comprenant au moins deux filtres itératifs linéaires, à savoir un premier filtre itératif linéaire qui fournit une estimation d'un signal reçu sélectionné, à une sortie de signal estimé, et un second filtre itératif linéaire qui fournit des estimations d'au moins un autre signal reçu, retardé d'un cycle d'itération à l'entrée dudit premier filtre itératif linéaire, de seconds moyens de traitement du signal qui reçoivent une sortie comprenant le signal estimé du premier filtre itératif linéaire, et fournissent une seconde estimation du signal reçu à l'entrée des premiers moyens de traitement du signal, lors du cycle d'itération subséquent du circuit de décodage. L'invention se rapporte également à un procédé de communication comprenant une hypothèse d'échantillon de paquet, et à un procédé de communication faisant appel à des estimations des dégradations des voies variant dans le temps.
Alexander Paul Dean
Grant Alexander James
Jakas Stephen Peter
Rasmussen Lars Kildehoj
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Cohda Wireless Pty Ltd
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