Compact Transceiver Architecture for Achieving Device to Device (D2D) Communication Using Uplink and Downlink Carrier Frequencies
First Claim
1. An apparatus for direct device-to-device communication using an uplink carrier frequency and a downlink carrier frequency, the apparatus comprising:
- a frequency synthesizer configured to provide the uplink carrier frequency and the downlink carrier frequency to both an up-converter and a down-converter;
a transmission circuit comprising the up-converter and configured to generate a cellular uplink signal when the up-converter receives the uplink carrier frequency, and configured to generate a first device-to-device signal when the up-converter receives the downlink carrier frequency; and
a reception circuit comprising the down-converter and configured to receive a second device-to-device signal when the down-converter receives the uplink carrier frequency, and configured to receive a cellular downlink signal when the down-converter receives the downlink carrier frequency.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for device-to-device (D2D) communication is disclosed. A preferred embodiment comprises a frequency synthesizer configured to provide a first carrier frequency and a second carrier frequency, an up-converter coupled to the frequency synthesizer and configured to up-convert a first baseband signal into a cellular uplink signal when receiving the first carrier frequency from the frequency synthesizer, and configured to up-convert the first baseband signal into a first device-to-device signal when receiving the second carrier frequency from the frequency synthesizer, and a down-converter coupled to the frequency synthesizer and configured to down-convert a second device-to-device signal into a second baseband signal when receiving the first carrier frequency from the frequency synthesizer, and configured to down-convert a cellular downlink signal into the second baseband signal when receiving the second carrier frequency from the frequency synthesizer.
18 Citations
30 Claims
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1. An apparatus for direct device-to-device communication using an uplink carrier frequency and a downlink carrier frequency, the apparatus comprising:
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a frequency synthesizer configured to provide the uplink carrier frequency and the downlink carrier frequency to both an up-converter and a down-converter; a transmission circuit comprising the up-converter and configured to generate a cellular uplink signal when the up-converter receives the uplink carrier frequency, and configured to generate a first device-to-device signal when the up-converter receives the downlink carrier frequency; and a reception circuit comprising the down-converter and configured to receive a second device-to-device signal when the down-converter receives the uplink carrier frequency, and configured to receive a cellular downlink signal when the down-converter receives the downlink carrier frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for conducting direct device-to-device communication with a peer mobile device, the apparatus comprising:
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a frequency synthesizer configured to provide a first carrier frequency and a second carrier frequency; an up-converter coupled to the frequency synthesizer and configured to up-convert a first baseband signal into a cellular uplink signal when receiving the first carrier frequency from the frequency synthesizer, and configured to up-convert the first baseband signal into a first device-to-device signal when receiving the second carrier frequency from the frequency synthesizer; and a down-converter coupled to the frequency synthesizer and configured to down-convert a second device-to-device signal into a second baseband signal when receiving the first carrier frequency from the frequency synthesizer, and configured to down-convert a cellular downlink signal into the second baseband signal when receiving the second carrier frequency from the frequency synthesizer. - View Dependent Claims (15, 16)
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17. A method for device-to-device communication with uplink and downlink monitoring and control functionality, the method comprising:
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generating a cellular uplink signal using a serially connected up-converter and power-amplifier during a first time period of a time division multiplexing (TDM) synchronization window; generating a first device-to-device signal using the serially connected up-converter and power-amplifier during a second time period of the TDM synchronization window; receiving a cellular downlink signal using a serially connected down-converter and low-noise-amplifier during the first time period of the TDM synchronization window; and receiving a first device-to-device signal using the serially connected down-converter and low-noise-amplifier during the second time period of the TDM synchronization window. - View Dependent Claims (18, 19, 20)
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21. An apparatus comprising:
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an up-converter coupled to an output port of a baseband processor; a power amplifier circuit connected in series with the up-converter and the output port of the baseband processor, wherein the up-converter is positioned between the power amplifier circuit and the baseband processor; and a switch comprising a first port that is coupled in series with the power amplifier circuit, the up-converter, and the output port of the baseband processor. - View Dependent Claims (22, 23, 24, 25, 26)
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27. An apparatus comprising:
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a down-converter coupled to an input port of a baseband processor; a low-noise amplifier circuit connected in series with the down-converter and the input port of the baseband processor, wherein the down-converter is positioned between the low-noise amplifier circuit and the input port of the baseband processor; and a switch comprising a first port connected in series with the low-noise amplifier circuit, the down-converter, and the input port of the baseband processor. - View Dependent Claims (28, 29, 30)
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Specification