Mobile devices with dual conversion of multiple frequency bands using a shared intermediate frequency

A radio frequency module comprising:

• a module substrate;
• and
• a semiconductor die attached to the module substrate and including a frequency range two front end system including a first local oscillator configured to upconvert a first intermediate frequency transmit signal to generate a first radio frequency transmit signal of a first frequency band in fifth generation frequency range two, and a second local oscillator configured to upconvert a second intermediate frequency transmit signal to generate a second radio frequency transmit signal of a second frequency band in fifth generation frequency range two, the first frequency band and the second frequency band being different frequency bands, the semiconductor die further including a transceiver configured to generate the first intermediate frequency transmit signal and the second intermediate frequency transmit signal on a common intermediate frequency, the transceiver further configured to generate the first intermediate frequency transmit signal based on a first baseband transmit signal for the first frequency band and to generate the second intermediate frequency transmit signal based on a second baseband transmit signal for the second frequency band, the transceiver including a shared local oscillator configured to provide frequency conversion for both upconverting the first baseband transmit signal to generate the first intermediate frequency transmit signal and upconverting the second baseband transmit signal to generate the second intermediate frequency transmit signal, the first intermediate frequency transmit signal and the second intermediate frequency transmit signal being non-overlapping at the common intermediate frequency.

A method of wireless communication m a mobile device, the method comprising:

• upconverting a first intermediate frequency transmit signal to generate a first radio frequency transmit signal of a first frequency band in fifth generation frequency range two using a first local oscillator of a frequency range two front end system;
• upconverting a second intermediate frequency transmit signal to generate a second radio frequency transmit signal of a second frequency band in fifth generation frequency range two using a second local oscillator of the frequency range two front end system, the first frequency band and the second frequency band being different frequency bands;
• and
• generating the first intermediate frequency transmit signal and the second intermediate frequency transmit signal on a common intermediate frequency using a transceiver, including generating the first intermediate frequency transmit signal based on a first baseband transmit signal for the first frequency band and generating the second intermediate frequency transmit signal based on a second baseband transmit signal for the second frequency band, and further including using a shared local oscillator of the transceiver to provide frequency conversion for both upconverting the first baseband transmit signal to generate the first intermediate frequency transmit signal and upconverting the second baseband transmit signal to generate the second intermediate frequency transmit signal, the first intermediate frequency transmit signal and the second intermediate frequency transmit signal being non-overlapping at the common intermediate frequency.