Antenna interface circuits for carrier aggregation on multiple antennas

An apparatus comprising:

• a triplexer operatively coupled to a first antenna and comprising a first transmit (TX) filter for a first band, a first receive (RX) filter for the first band, and a second RX filter for a second band, the first RX filter and the second RX filter receiving on the first antenna, the first and second bands configured for carrier aggregation;
• and
• a multiplexer operatively coupled to a second antenna and comprising a second TX filter for the second band and a third RX filter for the first band.

A method comprising:

• filtering in a first antenna interface circuit a first radio frequency (RF) signal with a first transmit (TX) filter for a first band prior to transmission via a first antenna;
• and
• filtering in a second antenna interface circuit a second RF signal with a second TX filter for a second band prior to transmission via a second antenna, the first and second RF signals being transmitted simultaneously on the first and second bands for carrier aggregation, and at least one of the first and second antenna interface circuits including a receive (RX) filter for the first band, and another RX filter for the second band, the RX filter and the another RX filter receiving on a common antenna, the first and second bands configured for carrier aggregation.

An apparatus comprising:

• means for filtering in a first antenna interface circuit a first radio frequency (RF) signal for a first band prior to transmission via a first antenna;
• and
• means for filtering in a second antenna interface circuit a second RF signal for a second band prior to transmission via a second antenna, the first and second RF signals being transmitted simultaneously on the first and second bands for carrier aggregation, and at least one of the first and second antenna interface circuits including a receive (RX) filter for the first band, and another RX filter for the second band, the RX filter and the another RX filter receiving on a common antenna, the first and second bands configured for carrier aggregation.