Patent ID: 9641213
Date: 2017-05-02
CPC Classifications: H04B,H04L

Claim:
1. A transceiver comprising: a transmission unit configured to modulate and to amplify at least one of a plurality of baseband transmit signals to an RF band; a duplexer configured to transmit signals outputted from the transmission unit to an antenna by selecting a signal in a downlink frequency band or an uplink frequency band or filtering a receive signal received from the antenna by the downlink frequency band or the uplink frequency band; a reception unit configured to demodulate the receive signals in the downlink frequency band or the uplink frequency band from the duplexer into at least one baseband signal; a mixing switch configured to mix a plurality of RF band transmit signals according to a selected communication mode, wherein the selected communication mode comprises at least one of a first communication mode, a second communication mode, or a third communication mode; a first switch configured to deliver a transmit signal provided from the transmission unit to a first RF band filter of the duplexer in the first communication mode and the second communication mode; and a second switch configured to deliver a first receive signal delivered from a second RF band filter of the duplexer to the reception unit in the first communication mode and the third communication mode, wherein each of the transmission unit and the reception unit comprises a power amplifier and a low noise amplifier.