Radio architecture for switching among transmission paths

A method for signal processing, comprising:

• directing at least a first communication signal on a first transmission path of a plurality of available transmission paths;
• selectively connecting a plurality of power amplifier and low noise amplifier (PA/LNA) modules to the plurality of available transmission paths;
• and
• selectively connecting the at least first communication signal to any of the plurality of PA/LNA modules prior to power amplification, while preventing the first communication signal from affecting or being affected by another communication signal on another of the plurality of available transmission paths,
• wherein the selectively connecting comprises switching a local oscillator (LO) input and the first communication signal between the first transmission path and the another of the plurality of available transmission paths respectively prior to mixing.

A device, comprising:

• means for directing at least a first communication signal on a first transmission path of a plurality of available transmission paths;
• means for selectively connecting a plurality of power amplifier and low noise amplifier (PA/LNA) modules to the plurality of available transmission paths;
• and
• means for selectively connecting the at least first communication signal to any of the plurality of PA/LNA modules prior to power amplification, while preventing the first communication signal from affecting or being affected by another communication signal on another of the plurality of available transmission paths,
• wherein the means for selectively connecting comprises means for switching a local oscillator (LO) input and the first communication signal between the first transmission path and the another of the plurality of available transmission paths respectively prior to mixing.

A radio system architecture, comprising:

• a modem;
• a radio frequency integrated circuit (RFIC) connected to the modem;
• and
• a switch logic associated with the RFIC, the switch logic configured to selectively connect at least a first communication signal in the RFIC to any of a plurality of available power amplifier and low noise amplifier (PA/LNA) modules prior to power amplification,
• wherein the switch logic is located external to the RFIC, wherein the RFIC and at least one of the plurality of available PA/LNA modules are mounted on a board, and wherein the switch logic comprises one or more discrete components mounted on the board.