Transmitter module, receiver module and data transmission system

A receiver circuit for a broadband data transmission system for radio communications, comprising:

• at least one polyphase FFT filter bank, wherein the at least one polyphase FFT filter bank is established as an analysis polyphase FFT filter bank, wherein the at least one polyphase FFT filter bank comprises several filters, wherein the receiver circuit is configured to receive and process a transmission signal;
• wherein the filters have a M-fold oversampling, wherein M is an integer greater than one;
• and/or
• wherein the receiver circuit comprises a spread sequence generator and a de-spreading unit, wherein the spread sequence generator is configured to generate a spread sequence and to forward the spread sequence to the de-spreading unit, and wherein the de-spreading unit is configured to de-spread the symbol sequence comprised in the transmission signal in frequency domain.

A data transmission system for a broadband transmission of data for radio communications, comprising at least one of:

• at least one transmitter circuit comprising at least one polyphase FFT filter bank, wherein the at least one polyphase FFT filter bank is established as a synthesis polyphase FFT filter bank, wherein the at least one polyphase FFT filter bank comprises several filters, wherein the at least one transmitter circuit is configured to receive an input signal comprising a symbol sequence, wherein the at least one transmitter circuit is configured to transmit a transmission signal based on the received input signal;
• wherein the filters have a M-fold oversampling with M being an integer greater than one or wherein the transmitter circuit comprises a spread sequence generator and a spreading unit, the spread sequence generator being configured to generate a spread sequence and to forward the spread sequence to the spreading unit, and the spreading unit being configured to spread the symbol sequence comprised in the input signal in frequency domain, or
• at least one receiver circuit comprising at least one polyphase FFT filter bank, wherein the at least one polyphase FFT filter bank is established as an analysis polyphase FFT filter bank, wherein the at least one polyphase FFT filter bank comprises several filters, wherein the receiver circuit is configured to receive and process a transmission signal;
• wherein the filters have a M-fold oversampling with M being an integer greater than one;
• or wherein the receiver circuit comprises a spread sequence generator and a de-spreading unit, the spread sequence generator being configured to generate a spread sequence and to forward the spread sequence to the de-spreading unit, and the de-spreading unit being configured to de-spread the symbol sequence comprised in the transmission signal in frequency domain.