Lower complexity layered modulation signal processor

Details Lower complexity layered modulation signal processor Lower complexity layered modulation signal processor

H - Electricity

04

B

H04B 14/04 (2006.01) H04L 29/06 (2006.01) H04N 5/21 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2503530

A method and apparatus for transmitting and receiving a coded signal having an upper layer signal (130) and a lower layer signal (1312) is disclosed. The method comprises the steps of combining the upper layer signal and the lower layer signal, encoding the combined upper layer signal and lower layer signal, delaying the upper layer signal, modulating the delayed upper layer signal, modulating the lower layer signal, transmitting the delayed upper layer signal and transmitting the lower layer signal. The apparatus comprises an encoder (1301), for encoding a combined upper layer signal and lower layer signal, a delay communicatively coupled to the encoder, for delaying the upper layer signal, a first modulator, for modulating the upper layer signal, a second modulator, for modulating the lower layer signal, a transmitter (1314), communicatively coupled to the first modulator, for transmitting the delayed upper layer signal, and a second transmitter (13, 16), communicatively coupled to the second modulator.

L'invention concerne un procédé et un appareil d'émission et de réception d'un signal codé comportant un signal de couche supérieure et un signal de couche inférieure. Le procédé comprend les étapes consistant à combiner le signal de couche supérieure et le signal de couche inférieure, à coder le signal de couche supérieure et le signal de couche inférieure combinés, à retarder le signal de couche supérieure, à moduler le signal de couche supérieure retardé, à moduler le signal de couche inférieure, et à émettre le signal de couche supérieure retardé et le signal de couche inférieure. L'appareil comprend un codeur, servant à coder le signal de couche supérieure et le signal de couche inférieure combinés, une unité retard, couplé de façon communicante au codeur, destinée à retarder le signal de couche supérieure, un premier modulateur, modulant le signal de couche supérieure retardé, un second modulateur, modulant le signal de couche inférieure, un émetteur, couplé, de façon communicante, au premier modulateur, émettant le signal de couche supérieure retardé, et un second émetteur, couplé de la même manière au second modulateur.

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