Transmitter module, data transmission system and data transmission method
AssigneeRohde & Schwarz GmbH & Co. KG
InventorThomas Valten
Life of this patent
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Abstract
A transmitter module for a broadband data transmission system for radio communications, comprising at least one transmitter filter bank and a shaping module is described. The at least one transmitter filter bank is established as a synthesis polyphase FFT filter bank, wherein the transmitter module is configured to generate a transmission signal, wherein the transmitter module is configured to forward the transmission signal to the shaping module, wherein the shaping module is connected to the at least one transmitter filter bank downstream of the at least one synthesis polyphase FFT filter bank, and wherein the shaping module is configured to reduce a crest factor of the transmission signal. Moreover, a data transmission system and a data transmission method are described.
Claims16
A transmitter module for a broadband data transmission system for radio communications, comprising:
- at least one transmitter filter bank and a shaping module, wherein the at least one transmitter filter bank is established as a synthesis polyphase FFT filter bank, wherein the transmitter module is configured to generate a transmission signal, wherein the transmitter module is configured to forward the transmission signal to the shaping circuit,
- wherein the shaping circuit is connected to the at least one transmitter filter bank downstream of the at least one synthesis polyphase FFT filter bank, and
- wherein the shaping circuit is configured to reduce a crest factor of the transmission signal.
A data transmission method for a broadband transmission of data for radio communications, comprising:
- generating a transmission signal via transmitter filter bank that is established as a synthesis polyphase FFT filter bank;
- clipping the transmission signal via a clipping circuit, thereby generating a clipped transmission signal;
- subtracting the clipped transmission signal from the transmission signal, thereby generating a noise signal;
- filtering the noise signal via a noise shaping filter bank, thereby generating a filtered noise signal;
- and
- subtracting the filtered noise signal from the transmission signal.
Dependencies are inferred from the claim text.