Motor vehicle with radio modem, radio modem, and method for exchanging communication data

A motor vehicle, comprising:

• a radio modem, the radio modem comprising:
• an antenna arrangement;
• an analog-to-digital and digital-to-analog (AD-DA) converter coupled to the antenna arrangement;
• a control unit configured to generate a selection signal;
• and
• a processor configured to:
• provide support for a plurality of communications standards, wherein each communications standard of the plurality of communications standards comprises a digital radio protocol stack, and a radio frequency for a radio signal;
• select at least one of the supported communications standards for the radio signal as a function of the selection signal;
• implement the selected at least one of the supported communications standards by operating the digital radio protocol stack as a software module;
• and
• implement a digital mixer to generate the radio frequency, to modulate using a digital modulation signal, and to demodulate using a digital demodulation signal,
• wherein the digital mixer is coupled to the digital radio protocol stack on a baseband side and to the AD-DA converter on a high-frequency (HF) side, and
• wherein the control unit is further configured to:
• select sequentially one communications standard from the plurality of communications standards for the radio signal,
• verify the selected one communications standard is required to exchange communications data with at least one object, and
• in response to verifying that the selected one communications standard is required, send the radio signal using the selected one communications standard,
• thereby exchanging the communications data between the motor vehicle and the at least one object in a vicinity of the motor vehicle.

A method, comprising:

• selecting, at a radio modem, a radio protocol stack from a plurality of radio protocol stacks for a radio signal, wherein the radio protocol stack is selected as a function of a selection signal, and wherein the selection signal is generated at a control unit of the radio modem;
• sequentially selecting, at the radio modem, one communications standard from the plurality of communications standards for the radio signal;
• verifying, at the radio modem, the selected one communications standard is required to exchange communications data with at least one object;
• and
• in response to verifying that the selected one communications standard is required, sending the radio signal using the selected one of the communications standard;
• operating, at a processor of the radio modem, the selected radio protocol stack as a software module;
• and
• operating, at the processor of the radio modem, a digital mixer to generate the radio frequency, to modulate using a digital modulation signal, and to demodulate using a digital demodulation signal,
• wherein the digital mixer is coupled to the radio protocol stack on a baseband side and to an AD-DA converter on a high-frequency (HF) side,
• thereby exchanging the communications data between the motor vehicle and the at least one object in a vicinity of the motor vehicle.