Adapter and associated method for full-duplex wireless communication
First Claim
Patent Images
1. An apparatus comprising:
- a half-duplex transceiver including one or more half-duplex antenna terminals;
a full-duplex transceiver including one or more full-duplex antennas; and
an interface coupled between the half-duplex transceiver and the full duplex transceiver, the interface configured to;
(i) receive an outbound radio-frequency (RF) signal from and to send an inbound RF signal to the one or more half-duplex antenna terminals, (ii) shift at least one of the outbound RF signal and the inbound RF signal to have a frequency of a full-duplex frequency band, and (iii) send and receive the shifted inbound and outbound RF signals over the full-duplex frequency band simultaneously via the one or more full-duplex antennas and including;
one or more RF self-interference cancellation components comprising RF filter banks, each of the one or more RF filter banks including one or more tunable phase and magnitude elements and one or more tunable delay elements capable of feed-forward injection of a corrective signal for self-interference cancellation for injection into a receive path; and
at least one low-noise amplifiers (LNAs) coupled to at least one of the one or more RF filter banks and configured to amplify and isolate the receive path between one or more self-interference cancellation stages, the at least one LNA configured to provide a desired level of isolation and signal amplitude.
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Abstract
An apparatus is described, along with methods, the apparatus including a half-duplex transceiver including one or more half-duplex antenna terminals, a full-duplex transceiver including one or more full-duplex antennas, and an interface coupled between the half-duplex transceiver and the full duplex transceiver, the interface enabling the one or more half-duplex antenna terminals and the one or more full-duplex antennas to send and receive radio-frequency (RF) signals over a same frequency band simultaneously.
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Citations
20 Claims
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1. An apparatus comprising:
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a half-duplex transceiver including one or more half-duplex antenna terminals; a full-duplex transceiver including one or more full-duplex antennas; and an interface coupled between the half-duplex transceiver and the full duplex transceiver, the interface configured to;
(i) receive an outbound radio-frequency (RF) signal from and to send an inbound RF signal to the one or more half-duplex antenna terminals, (ii) shift at least one of the outbound RF signal and the inbound RF signal to have a frequency of a full-duplex frequency band, and (iii) send and receive the shifted inbound and outbound RF signals over the full-duplex frequency band simultaneously via the one or more full-duplex antennas and including;one or more RF self-interference cancellation components comprising RF filter banks, each of the one or more RF filter banks including one or more tunable phase and magnitude elements and one or more tunable delay elements capable of feed-forward injection of a corrective signal for self-interference cancellation for injection into a receive path; and at least one low-noise amplifiers (LNAs) coupled to at least one of the one or more RF filter banks and configured to amplify and isolate the receive path between one or more self-interference cancellation stages, the at least one LNA configured to provide a desired level of isolation and signal amplitude. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method comprising:
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receiving, at an interface, an outbound radio-frequency (RF) signal from a half-duplex transceiver; receiving a first inbound RF signal from a full-duplex transceiver, wherein the inbound radio frequency signal includes a self-interference component and a desired radio frequency component; generating a corrective signal; combining the corrective signal with the first inbound RF signal to generate a second inbound RF signal with reduced self-interference; shifting the frequency of at least one of the received outbound RF signals and the second inbound RF signal; and transmitting the outbound radio-frequency signal at the same frequency as the desired radio-frequency component. - View Dependent Claims (19, 20)
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Specification