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US 9,432,065 B2Granted
Communication transceiver interface
AssigneeEntropic Communications, Inc.
InventorsBranislav Petrovic, Michael Farese
Life of this patent
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Abstract
A communication system includes a communication transceiver with analog interfaces to interface to baseband circuitry and PAs/LNAs. The communication transceiver can include digital tuning and an analog-to-digital and digital-to-analog converter to allow the digital tuner to communicate with the baseband circuitry and PAs/LNAs A plurality of switches may be provided so that the analog-to-digital converter and digital-to-analog converter may be shared for both the interface to the baseband circuitry and the interface to the PAs/LNAs.
Claims26
A communication transceiver for wireless communications, comprising:
- a first multiplexer including two inputs and an output, the inputs configured to receive analog signals for transmission across a wireless communication channel;
- an analog-to-digital converter including an input and an output;
- a first switch comprising a first input, a second input communicatively couplable to the output of the multiplexer, and an output coupled to the input of the analog-to-digital converter;
- a digital-to-analog converter including an input and an output;
- a digital tuner module, comprising a modulator and a demodulator, and including an input coupled to the output of the analog-to-digital converter and an output coupled to the input of the digital-to-analog converter;
- a second switch including an input coupled to the output of the digital-to-analog converter and first and second outputs;
- a demultiplexer including an input communicatively coupled to the output of the digital-to-analog converter and first and second outputs;
- and
- a sample and hold module including a first input coupled to the first output of the demultiplexer.
6 more elements
A communication system for wireless communications, comprising:
- a baseband module comprising a plurality of inputs, and outputs;
- a communication transceiver, comprising:
- a first multiplexer including two inputs and an output, the inputs configured to receive analog signals for transmission across a wireless communication channel;
- an analog-to-digital converter including an input and an output;
- a first switch comprising a first input, a second input communicatively couplable to the output of the multiplexer, and an output coupled to the input of the analog-to-digital converter;
- a digital-to-analog converter including an input and an output;
- a digital tuning module, comprising a modulator and a demodulator, and including an input coupled to the output of the analog-to-digital converter and an output coupled to the input of the digital-to-analog converter;
- a second switch including an input coupled to the output of the digital-to-analog converter and first and second outputs;
- a demultiplexer including an input communicatively coupled to the first output of the second switch, and first and second outputs;
- and
- a hold module including a first input coupled to the first output of the demultiplexer;
- and
- a transmit/receive module comprising:
- an input communicatively coupled to the second output of the second switch;
- a first output communicatively coupled to the second input of the first switch;
- and a second output for connection to an antenna.
13 more elements
A method for providing an interface of a communication transceiver for use in a communication system, the method comprising:
- configuring first and second switches of the communication transceiver to a transmit mode;
- receiving I and Q channels of analog information to be transmitted by the communication system;
- a multiplexer multiplexing the received I and Q channels into a multiplexed transmission signal and routing the multiplexed transmission signal to an analog-to-digital converter via the first switch;
- an analog-to-digital converter digitizing the multiplexed transmission signal;
- upconverting the digitized multiplexed transmission signal;
- a digital-to-analog converter converting the digitized, upconverted multiplexed transmission signal to an analog RF signal;
- and
- routing the analog RF signal via the second switch to a transmitter for transmission.
5 more elements
A communication system for wireless communications, comprising:
- a first multiplexer including two inputs and an output, the inputs configured to receive analog signals for transmission across a wireless communication channel;
- an analog-to-digital converter including an input and an output;
- a first switch comprising a first input, a second input communicatively couplable to the output of the multiplexer, and an output coupled to the input of the analog-to-digital converter;
- a first digital-to-analog converter including an input and an output;
- a second digital-to-analog converter including an input and an output;
- a digital tuner module, comprising a modulator and a demodulator, and including an input coupled to the output of the analog-to-digital converter, a first output coupled to the input of the first digital-to-analog converter, and a second output coupled to the input of the second digital-to-analog converter;
- a second switch including an input coupled to the output of the first digital-to-analog converter and first and second outputs.
4 more elements
Dependencies are inferred from the claim text.