Signals representing data, methods and devices for generating such signals and methods and devices for determining represented data from such signals

摘要

The current invention concerns a method and a device for generating a signal representing data. The method for generating a signal comprises modulating a portion (1 P, 2P) of the data using phase shift keying and spreading the modulated portion over the at least one frequency base band using at least one highly auto-correlated spread code sequence (1C, 2C) associated with the frequency base band. The method for generating a signal is characterized by delaying, according to a delay determined using a remainder (1R, 2R) of the data (ID), the at least one spread code sequence (1C, 2C) by a time delay wherein the modulated portion (1 MP, 2MP) is spread according the delayed spread code sequence (1DC, 2DC). This allows for additional bit rate through encoding of the data remainder in the delay.