Radio transmission system and method and transmission...

Details Radio transmission system and method and transmission... Radio transmission system and method and transmission...

H - Electricity

04

J

H04J 11/00 (2006.01) H04W 4/00 (2009.01) H04L 1/00 (2006.01) H04L 5/02 (2006.01) H04B 1/69 (2006.01) H04J 13/04 (2006.01)

Patent

CA 2459129

A radio transmission system is configured to, on the occasion of radio transmission of information between a transmitter and a receiver, perform the radio transmission of information using an orthogonal frequency and code division multiplexing transmission scheme of parallelly transmitting identical information by a plurality of sub-carriers. The radio transmission system has a spreading factor variable control transmitting device for parallelly converting information channel-coded at the transmitter, according to symbols transmitted simultaneously, and for spreading a sequence of parallelized symbols in at least one of a frequency direction and a time direction by a spreading code sequence of a designated spreading factor.

L'invention concerne un système d'émission radio permettant une émission radio d'informations entre une station d'émission et une station de réception, au moyen d'un procédé d'émission de multiplexage par code/division de fréquence orthogonale, pour une émission parallèle des mêmes informations par une pluralité de sous-porteuses. Le système comprend un moyen d'émission de commande variable de rapport d'étalement permettant une conversion parallèle d'informations codées par canaux au niveau de la station d'émission, en fonction d'un symbole émis simultanément, et un étalement des séries de symboles parallélisés au moyen de séries de code d'étalement du rapport d'étalement spécifié, au moins dans l'une des directions de fréquence et des directions temporelles.

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