Methods and systems are provided for allowing an FDD radio to be
configured to operate in Rx-high/Tx-low or Rx-low/Tx-high modes of
operation. In accordance with one aspect, this is achieved in an FDD
radio configuration that includes multiple switches, multiple Rx
electronics, and multiple Tx electronics, allowing a diplexing filter to
have selectively coupled to its high and low terminals desired Tx or Rx
paths, such as to allow the radio to operate in one or another mode.