Method and apparatus for superframe bit allocation

Details Method and apparatus for superframe bit allocation Method and apparatus for superframe bit allocation

H - Electricity

04

J

H04J 3/00 (2006.01) H04L 5/02 (2006.01) H04L 27/26 (2006.01)

Patent

CA 2291062

A method and apparatus for supporting multiple bit allocations in a multicarrier modulation system are disclosed. Hence, symbols being transmitted or received can make use of different bit allocations. By supporting the multiple bit allocations, the multicarrier modulation system is able to support bit allocation on a superframe basis. Also disclosed are techniques for selection and alignment of superframe formats to improve system performance. In the case of data transmission systems involving different transmission schemes, different bit allocations can be used to reduce undesired crosstalk interference.

Procédé et dispositif pour permettre des attributions de bits multiples, dans un système de modulation à porteuses multiples. Les symboles émis ou reçus peuvent par conséquent utiliser différentes attributions de bits. En acceptant les attributions de bits multiples, le système de modulation à porteuses multiples devient capable d'assurer les attributions de bits en supertrame. L'invention porte en outre sur des techniques de sélection et d'alignement de formats supertrame pour améliorer la performance du système. Pour les systèmes de transmission de données comprenant différents schémas de transmission, différentes attributions de bits peuvent être utilisées pour réduire les perturbations diaphoniques indésirables.

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