Patent ID: 8892057

Claim:
A carrier aggregation radio system comprising: a transceiver comprising; main receiver intermediate frequency (IF) de-modulation and processing circuitry coupled to a first RF mixer that receives a first local oscillator signal to mix with RF signals captured by a main antenna; diversity receiver IF de-modulation and processing circuitry coupled to a second RF mixer that receives a second local oscillator signal to mix with diversity signals captured by a diversity antenna; carrier aggregation receiver IF de-modulation and processing circuitry coupled to a third RF mixer that receives a third local oscillator signal to mix with carrier aggregation signals captured by the diversity antenna; and a control system configured to: command a radio front end to route diversity signals from the diversity antenna to the main receiver IF de-modulation and processing circuitry and the diversity receiver IF de-modulation and processing circuitry in a first mode; command the radio front end to route carrier aggregation signals from the diversity antenna to the carrier aggregation receiver IF de-modulation and processing circuitry in a second mode; and command the radio front end via a third mode in which diversity signals are routed from the diversity antenna to the main receiver IF de-modulation and processing circuitry and the diversity receiver IF de-modulation and processing circuitry while carrier aggregation signals are routed from the diversity antenna to the carrier aggregation receiver IF de-modulation and processing circuitry.