Data transmission method, base station and transmitter for compensating for non-linearities in a transmission chain

A transmitter configured to compensate for non-linearities of a transmission chain, the transmitter comprising:

• a first forming unit configured to form at least one time-domain compensation parameter vector;
• a second forming unit configured to form at least one frequency-domain compensation parameter vector;
• a determining unit configured to determine at least one set of signal properties modeling the non-linearities in a transmission chain;
• a third forming unit configured to form, based on the at least one set of signal properties, at least one state expansion vector comprising quantities characterizing a signal;
• a modifier configured to modify the signal characterizing quantities of at least one state expansion vector with the at least one time-domain compensation parameter vector and with the at least one frequency-domain compensation parameter vector to form a pre-distorted signal;
• a fourth forming unit configured to form a feedback signal from an output signal of a transmission chain;
• a filter configured to filter the feedback signal to minimize a non-linear frequency response of a feedback chain;
• a first adapter configured to adapt the at least one time-domain compensation parameter vector based on a residual error between a transmit signal and the feedback signal;
• a second adapter configured to adapt the at least one frequency-domain compensation parameter vector based on the residual error between the transmit signal and the feedback signal;
• and
• a third adapter configured to adapt at least one compensation parameter vector of a feedback filter based on the residual error between the transmit signal and the feedback signal.

A module, wherein non-linearities of a transmission chain are compensated for, the module comprising:

• a first forming unit configured to form at least one time-domain compensation parameter vector;
• a second forming unit configured to form at least one frequency-domain compensation parameter vector;
• a determining unit configured to determine at least one set of signal properties modeling nonlinearities in a transmission chain;
• a third forming unit configured to form, based on the at least one set of signal properties, at least one state expansion vector comprising quantities characterizing a signal;
• a modifier configured to modify the signal characterizing quantities with the at least one time-domain compensation parameter vector and with the at least one frequency-domain compensation parameter vector to form a pre-distorted signal;
• a fourth forming unit configured to form a feedback signal from a transmission chain output signal;
• a first adapter configured to adapt the at least one time-domain compensation parameter vector based on a residual error between a transmit signal and the feedback signal;
• and
• a second adapter configured to adapt the at least one frequency-domain compensation parameter vector based on the residual error between the transmit signal and the feedback signal.

A module, wherein nonlinearities of a transmission chain are compensated for, the module comprising:

• a first forming unit configured to form at least one time-domain compensation parameter vector;
• a second forming unit configured to form at least one frequency-domain compensation parameter vector;
• a determining unit configured to determine at least one set of signal properties modeling the nonlinearities in a transmission chain;
• a third forming unit configured to form, based on the at least one set of signal properties, at least one state expansion vector comprising quantities characterizing a signal;
• a modifier configured to modify the signal characterizing quantities with the at least one time-domain compensation parameter vector and with the at least one frequency-domain compensation parameter vector to form a pre-distorted signal;
• a fourth forming unit configured to form a feedback signal from an output signal of a transmission chain;
• a filter configured to filter the feedback signal to minimize a non-linear frequency response of a feedback chain;
• a first adapter configured to adapt the at least one time-domain compensation parameter vector based on a residual error between a transmit signal and the feedback signal;
• a second adapter configured to adapt the at least one frequency-domain compensation parameter vector based on the residual error between the transmit signal and a feedback signal;
• and
• a third adapter configured to adapt at least one compensation parameter vector of a feedback filter based on the residual error between the transmit signal and the feedback signal.

A module, wherein non-linearities of a transmission chain are compensated for, the module comprising:

• first forming unit means for forming at least one time-domain compensation parameter vector;
• second forming means for forming at least one frequency-domain compensation parameter vector;
• determining means for determining at least one set of signal properties modeling nonlinearities in a transmission chain;
• third forming means for forming, based on the at least one set of signal properties, at least one state expansion vector comprising quantities characterizing a signal;
• modifying means for modifying the signal characterizing quantities with the at least one time-domain compensation parameter vector and with the at least one frequency-domain compensation parameter vector to form a pre-distorted signal;
• fourth forming unit means for forming a feedback signal from a transmission chain output signal;
• first adapting means for adapting the at least one time-domain compensation parameter vector based on a residual error between a transmit signal and the feedback signal;
• and
• second adapting means for adapting the at least one frequency-domain compensation parameter vector based on the residual error between the transmit signal and the feedback signal.

A module, wherein nonlinearities of a transmission chain are compensated for, the module comprising:

• first forming means for forming at least one time-domain compensation parameter vector;
• second forming means for forming at least one frequency-domain compensation parameter vector;
• determining means for determining at least one set of signal properties modeling the nonlinearities in a transmission chain;
• third forming means for forming, based on the at least one set of signal properties, at least one state expansion vector comprising quantities characterizing a signal;
• modifying means for modifying the signal characterizing quantities with the at least one time-domain compensation parameter vector and with the at least one frequency-domain compensation parameter vector to form a pre-distorted signal;
• fourth forming means for forming a feedback signal from an output signal of a transmission chain;
• filtering means for filtering the feedback signal to minimize a non-linear frequency response of a feedback chain;
• first adapting means for adapting the at least one time-domain compensation parameter vector based on a residual error between a transmit signal and the feedback signal;
• second adapting means for adapting the at least one frequency-domain compensation parameter vector based on the residual error between the transmit signal and a feedback signal;
• and
• third adapting means for adapting at least one compensation parameter vector of a feedback filter based on the residual error between the transmit signal and the feedback signal.