Adapter and Associated Method for Full-Duplex Wireless Communication
First Claim
1. A method comprising:
- receiving an outbound radio-frequency signal from a transceiver;
receiving a first inbound radio-frequency signal from an antenna, wherein the inbound radio frequency signal includes a self-interference component and a desired radio frequency component;
generating a first analog corrective signal from the outbound radio-frequency signal;
combining the first analog corrective signal with the first inbound radio-frequency signal to generate a second inbound radio-frequency signal with reduced self-interference;
shifting the frequency of at least one of the received outbound radio-frequency signal and the second inbound radio-frequency signal;
transmitting the outbound radio-frequency signal at the same frequency as the desired radio-frequency component; and
providing the second inbound radio-frequency signal to the transceiver at a frequency different from the frequency of the received outbound radio-frequency signal.
0 Assignments
0 Petitions
Accused Products
Abstract
An adapter for enabling full-duplex wireless communications is described, along with methods for operating the adapter. The adapter operates as an intermediary between a transmit antenna and receive antenna on the one hand, and a transceiver on the other hand. The adapter communicates with the transceiver using different frequencies for outbound and inbound radio-frequency signals. However, with respect to the transmit antenna and receive antenna, the adapter transmits outbound and receives inbound radio frequency signals using the same frequency. The adapter includes cancellation circuitry to reduce the self-interference cause by transmitting and receiving on the same frequency.
-
Citations
24 Claims
-
1. A method comprising:
-
receiving an outbound radio-frequency signal from a transceiver; receiving a first inbound radio-frequency signal from an antenna, wherein the inbound radio frequency signal includes a self-interference component and a desired radio frequency component; generating a first analog corrective signal from the outbound radio-frequency signal; combining the first analog corrective signal with the first inbound radio-frequency signal to generate a second inbound radio-frequency signal with reduced self-interference; shifting the frequency of at least one of the received outbound radio-frequency signal and the second inbound radio-frequency signal; transmitting the outbound radio-frequency signal at the same frequency as the desired radio-frequency component; and providing the second inbound radio-frequency signal to the transceiver at a frequency different from the frequency of the received outbound radio-frequency signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method comprising:
-
receiving a first outbound radio-frequency signal from a transceiver; demodulating the first outbound radio-frequency signal to generate a demodulated outbound signal; modulating the demodulated outbound signal to generate a second outbound radio-frequency signal; generating a first analog corrective signal based on the second outbound radio-frequency signal; transmitting the second outbound radio-frequency signal; receiving a first inbound radio frequency signal, wherein the first inbound radio-frequency signal includes a radio-frequency self-interference component and a desired radio frequency component at the same frequency as the second outbound radio frequency signal; combining the first analog corrective signal with the first inbound radio frequency signal to reduce the radio-frequency self-interference component; demodulating the second inbound radio-frequency signal to generate a demodulated inbound signal; modulating the demodulated inbound signal to generate a second inbound radio-frequency signal at a frequency different from the first outbound radio-frequency signal; and providing the second inbound radio-frequency signal to the transceiver. - View Dependent Claims (17, 18, 19)
-
-
20. A full-duplex transceiver adapter comprising:
-
an outbound radio-frequency connection node operative to receive a first outbound radio-frequency signal; an outbound radio-frequency demodulator operative to demodulate the first outbound radio frequency signal at a first radio frequency to generate a demodulated outbound signal; an outbound radio-frequency modulator operative to modulate the demodulated outbound signal at a second radio frequency to generate a second outbound radio-frequency signal; a transmit antenna connected to an output of the outbound radio-frequency modulator; a receive antenna operative to receive a first inbound radio-frequency signal; and an inbound radio-frequency demodulator operative to demodulate the first inbound radio frequency signal at the second radio frequency to generate a demodulated inbound signal; an inbound radio-frequency modulator operative to modulate the demodulated inbound signal at a third radio frequency different from the first radio frequency to generate a second inbound radio-frequency signal; and an inbound radio-frequency connection node connected to an output of the inbound radio-frequency modulator. - View Dependent Claims (21, 22, 23, 24)
-
Specification