An apparatus for a wireless communication device (200; 200a), the apparatus comprising: a transceiver module for transmitting and receiving wireless transmissions; and a processing module configured to: control the transceiver module, communicate with a further wireless communication device via the transceiver module, 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, wherein each data frame is an Orthogonal Time-Frequency Space, OTFS, data frame, wherein the processing module is configured to select a communication mode from a plurality of communication modes for the communication between the wireless communication device and the further 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 processing module is configured to negotiate a communication mode of the plurality of communication modes to select for a future communication between the wireless communication device and the further wireless communication device with the further wireless communication device. a transceiver module for transmitting and receiving wireless transmissions; and a processing module configured to: control the transceiver module, communicate with a further wireless communication device via the transceiver module, 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, wherein each data frame is an Orthogonal Time-Frequency Space, OTFS, data frame, wherein the processing module is configured to select a communication mode from a plurality of communication modes for the communication between the wireless communication device and the further 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 processing module is configured to negotiate a communication mode of the plurality of communication modes to select for a future communication between the wireless communication device and the further wireless communication device with the further wireless communication device. control the transceiver module, communicate with a further wireless communication device via the transceiver module, 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, wherein each data frame is an Orthogonal Time-Frequency Space, OTFS, data frame, wherein the processing module is configured to select a communication mode from a plurality of communication modes for the communication between the wireless communication device and the further 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 processing module is configured to negotiate a communication mode of the plurality of communication modes to select for a future communication between the wireless communication device and the further wireless communication device with the further wireless communication device.