Radio frequency (RF) front end to support various simultaneous, synchronous and asynchronous communication modes

An apparatus, comprising:

• a first switched diplexer including a first switching device and a first filter and a second filter;
• a second switched diplexer including a second switching device and a third filter and a fourth filter;
• a first transceiver coupled to the first switching device, the first switching device configured to selectively couple the first transceiver to the first filter of the first switched diplexer;
• a second transceiver coupled to the second switching device, the second switching device configured to selectively couple the second transceiver to the third filter of the second switched diplexer;
• a third transceiver coupled to the first switching device, the first switching device further configured to selectively switch between coupling the third transceiver to the first filter and coupling the third transceiver to the second filter of the first switched diplexer;
• and
• a fourth transceiver coupled to the second switching device, the second switching device configured to selectively switch between coupling the fourth transceiver the third filter and coupling the fourth transceiver to the fourth filter of the second switched diplexer.

A method of operating a radio frequency (RF) front end, comprising:

• generating a first RF signal;
• generating a second RF signal;
• generating a third RF signal;
• generating a fourth RF signal;
• selectively routing the first RF signal to a first diplexer filter via a first switching device;
• selectively routing the third RF signal to the first diplexer filter or a second diplexer filter via the first switching device that is configured to selectively switch between routing the third RF signal to the first diplexer filter and routing the third RF signal to the second diplexer filter;
• selectively routing the second RF signal to a third diplexer filter via a second switching device;
• and
• selectively routing the fourth RF signal to the third diplexer filter or a fourth diplexer filter via the second switching device that is configured to selectively switch between routing the fourth RF signal to the third diplexer filter and routing the fourth RF signal to the fourth diplexer filter.