Agile and Adaptive Transmitter-Receiver Isolation
First Claim
1. A transceiver system, comprising:
- a reception path comprising one or more receive antennas configured to receive a first RF signal;
a transmission path comprising a plurality of transmit antennas configured to wirelessly transmit a second RF signal; and
a spatial filter element configured to assign antenna weights to the transmit or receive antennas, causing the transmit or receive antennas to operate in a manner that attenuates RF signals extending between the transmit and receive antennas without attenuating the RF signals in other directions, thereby providing isolation between the transmission path and the reception path.
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Accused Products
Abstract
The disclosed invention relates to a transceiver system having one or more receive antennas that receive a first radio frequency (RF) signal and a plurality of transmit antennas that wirelessly transmit a second RF signal. A local channel determination unit provides data corresponding to the environment of local communication channels (i.e., the communication channels between the transmit antennas and the receive antennas) to a beamforming element, which enables beamforming functionality within the transmit and/or receive antennas (e.g., by using analog or digital weights to vary the radiation pattern generated by the transmit antennas) so as to attenuate RF signals extending between the transmit antennas and the receive antennas. By attenuating signals extending between the transmit and the receive antennas, a high degree of isolation is achieved between transmission and reception paths
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Citations
20 Claims
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1. A transceiver system, comprising:
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a reception path comprising one or more receive antennas configured to receive a first RF signal; a transmission path comprising a plurality of transmit antennas configured to wirelessly transmit a second RF signal; and a spatial filter element configured to assign antenna weights to the transmit or receive antennas, causing the transmit or receive antennas to operate in a manner that attenuates RF signals extending between the transmit and receive antennas without attenuating the RF signals in other directions, thereby providing isolation between the transmission path and the reception path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile communication device, comprising:
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a reception path comprising a first number of receive antennas configured to receive a first RF signal; a transmission path comprising a second number of transmit antennas configured to wirelessly transmit a second RF signal, wherein the second number is greater than the first number; a local channel determination unit configured to determine an environment of local communication channels extending between the transmission path and the reception path; and a beamforming element configured to receive data corresponding to the environment of the local communication channels from the local channel determination unit and based thereupon to assign antenna weights to the first number of receive antennas or the second number of transmit antennas, so as to enable a beamforming functionality that reduces an amplitude of RF signals extending between the first number of receive antennas and the second number of transmit antennas. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for providing isolation between a transmission path and a reception path, comprising:
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operating a power supply to provide power to a transceiver system having a transmission path comprising a plurality of transmit antennas and a reception path comprising one or more receive antennas; operating the receive antenna to receive a first RF signal; and operating the transmit antennas or the receive antennas in a manner that reduces an amplitude of RF signals extending between the transmit and receive antennas without attenuating the RF signals in other directions, thereby providing isolation between the transmission path and the reception path. - View Dependent Claims (17, 18, 19, 20)
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Specification