Configurable receiver architecture for carrier aggregation with multiple-input multiple-output

摘要

A wireless communication system and method that includes configurable Carrier Aggregation (CA) and/or Multiple-input Multiple-output (MIMO) operational modes. In CA, multiple carriers (i.e., channel bundling) are aggregated and jointly used for transmission to/from a single terminal. Downlink inter-band carrier aggregation increases the downlink data rates by routing two signals, received in different frequency bands, simultaneously to two active receivers in the RF transceiver. MIMO utilizes two additional receivers as diversity paths and the frequency generation can be shared between main and diversity path for each carriers.

主权项

1. A communication device, comprising:
a first multiplexer configured to select between first and second oscillator signals to provide a first output signal; a first mixer configured to mix the first output signal with either a first amplified signal associated with a first antenna or a second amplified signal associated with a second antenna; a second multiplexer configured to select between the first and second oscillator signals to provide a second output signal; and a second mixer configured to mix the second output signal with either a third amplified signal associated with the first antenna or a fourth amplified signal associated with the second antenna.