Wireless communication device and corresponding apparatus, method and computer program

A method for a wireless communication device, the method comprising:

• communicating with a further wireless communication device,
• wherein the communication with the further wireless communication device is based on a transmission of data frames between the wireless communication device and the further wireless communication device,
• wherein each data frame is:
• based on a two-dimensional grid in a time-frequency plane having a time dimension resolution and a frequency dimension resolution,
• comprises a pilot symbol, and
• comprises a plurality of guard symbols surrounding the pilot symbol,
• wherein the two-dimensional time-frequency grid is derived from a two-dimensional grid in a delay-Doppler plane having a delay dimension and a Doppler dimension,
• performing an inverse symplectic Fourier transform on the received data frame, wherein the inverse symplectic Fourier transform is performed for the points on the two-dimensional grid in the delay-Doppler plane corresponding to the pilot symbol and a subset of the plurality of guard symbols,
• determining a spreading function of a channel that is used for the communication based on the pilot symbol of the previously received data frame, wherein the spreading function is determined using a result of the inverse symplectic Fourier transform,
• selecting a communication mode from a plurality of communication modes for the communication between the wireless communication device and the wireless communication device, wherein the communication mode defines a combination of a frequency dimension resolution and a time dimension resolution of the two-dimensional grid in the time-frequency plane,
• wherein the communication mode is selected from the plurality of communication modes based on an estimated self-interference of the plurality of communication modes, and
• wherein the self-interference is estimated based on the pilot symbol and the plurality of guard symbols of a previously received data frame.

A non-transitory, computer-readable medium comprising a program code for performing a method for a wireless communication device when the program code is executed on a computer, a processor, or a programmable hardware component, the method comprising:

• communicating with a further wireless communication device,
• wherein the communication with the further wireless communication device is based on a transmission of data frames between the wireless communication device and the further wireless communication device,
• wherein each data frame:
• is based on a two-dimensional grid in a time-frequency plane having a time dimension resolution and a frequency dimension resolution,
• comprises a pilot symbol, and
• comprises a plurality of guard symbols surrounding the pilot symbol,
• wherein the two-dimensional time-frequency grid is derived from a two-dimensional grid in a delay-Doppler plane having a delay dimension and a Doppler dimension,
• performing an inverse symplectic Fourier transform on the received data frame, wherein the inverse symplectic Fourier transform is performed for the points on the two-dimensional grid in the delay-Doppler plane corresponding to the pilot symbol and a subset of the plurality of guard symbols,
• determining a spreading function of a channel that is used for the communication based on the pilot symbol of the previously received data frame, wherein the spreading function is determined using a result of the inverse symplectic Fourier transform,
• selecting a communication mode from a plurality of communication modes for the communication between the wireless communication device and the wireless communication device, wherein the communication mode defines a combination of a frequency dimension resolution and a time dimension resolution of the two-dimensional grid in the time-frequency plane,
• wherein the communication mode is selected from the plurality of communication modes based on an estimated self-interference of the plurality of communication modes, and
• wherein the self-interference is estimated based on the pilot symbol and the plurality of guard symbols of a previously received data frame.