Mode switching available wireless transceiver
First 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.
1 Assignment
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Accused Products
Abstract
Provided is a transceiver. The transceiver includes: a transmission unit modulating at least one of a plurality of baseband transmit signals to an RF band and amplifying the modulated at least one; a duplexer transmitting 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 demodulating the receive signals in the downlink frequency band or the uplink frequency band from the duplexer into at least one baseband signal; a first switch delivering a transmit signal provided from the transmission unit to a first RF band filter of the duplexer in a first communication mode and a second communication mode; and a second switch delivering a first receive signal delivered from a second RF band filter of the duplexer to the reception unit in the first communication mode and a third communication mode, wherein each of the transmission unit and the reception unit includes one power amplifier and one low noise amplifier.
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Citations
15 Claims
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1. A transceiver comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A transceiver comprising:
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a transmission switch terminal configured to select one or all of a first transmit signal of a downlink frequency and a second transmit signal of an uplink frequency; a power amplifier configured to amplify a transmit signal delivered from the transmission switch terminal; a duplexer configured to separate the amplified transmit signal into a downlink or uplink frequency band and to transmit the separated signal to an antenna or to filter a receive signal received from the antenna by the downlink or uplink frequency band; a low noise amplifier configured to amplify receive signals in the downlink or uplink frequency band from the duplexer; a reception switch terminal configured to distribute a receive signal outputted from the low noise amplifier into first and second demodulation units configured to demodulate signals into the downlink or uplink frequency band; a mixing switch configured to mix the first transmit signal and the second transmit signal and to deliver the mixed signal to a selection switch in a time division transmission mode; a first switch configured to deliver a transmit signal of the power amplifier to a first RF band filter of the duplexer in a frequency division mode and the time division transmission mode; and a second switch configured to deliver a first receive signal delivered from a second RF band filter of the duplexer to the low noise amplifier in the frequency division mode and a time division reception mode. - View Dependent Claims (12, 13, 14, 15)
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Specification