Patent ID: 8638721

Claim:
A method in a base station of a GSM/EDGE cellular radio system for modulating and processing a slot of data to be transmitted from the base station to a user, the slot comprising at least one user data block and a training sequence, the method being comprising the steps of: modulating the one user block and the training sequence in the time domain to generate time domain-modulated symbols corresponding to the one user block and time domain-modulated symbols corresponding to the training sequence, and further processing the time domain-modulated symbols corresponding the one user data block into a transformed domain to generate transform domain symbols by performing one or more of a Discrete Fourier Transform, a Discrete Cosine Transform, Discrete Sine Transform, Discrete Wavelet Transform, Discrete Hartley Transform or their respective inverse transforms, transmitting the slot including the transform domain symbols corresponding to the one user data block and the time domain-modulated symbols corresponding to the training sequence over a radio channel.