Full duplex reconfigurable antenna self-interference cancellation systems
First Claim
1. A transceiver, comprising:
- a transmit chain configured to transmit over a first antenna;
a receive chain configured to receive over a second antenna, wherein at least one of the first antenna and the second antenna comprises a reconfigurable antenna having plurality of reconfigurable antenna modes;
a digital signal processor configured to transmit a set of training symbols over the first antenna during a training interval; and
an antenna controller configured to;
to select a respective mode of the reconfigurable antenna for individual training symbols in the set of training symbols during the training interval; and
set a mode of the reconfigurable antenna after the training interval.
1 Assignment
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Accused Products
Abstract
Embodiments of transceivers with one or more reconfigurable antennas are described. In one embodiment, a reconfigurable antenna transceiver includes a transmit chain, a receive chain, and a reconfigurable antenna having a plurality of reconfigurable modes. The transceiver may also include an antenna controller configured to set a mode of the reconfigurable antenna. According to other aspects, the transceiver may also include a signal processor configured to transmit a set of training symbols during a training interval. The antenna controller may be further configured to select a respective mode of the reconfigurable antenna for each training symbol in the set of training symbols. Additionally, the antenna controller may be configured to calculate a received Signal-of-Interest to Interferer Ratio (SIR) for each training symbol of the set of training symbols. In this context, a system utilizing a reconfigurable antenna may achieve significant rate improvement compared to half-duplex systems.
24 Citations
20 Claims
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1. A transceiver, comprising:
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a transmit chain configured to transmit over a first antenna; a receive chain configured to receive over a second antenna, wherein at least one of the first antenna and the second antenna comprises a reconfigurable antenna having plurality of reconfigurable antenna modes; a digital signal processor configured to transmit a set of training symbols over the first antenna during a training interval; and an antenna controller configured to; to select a respective mode of the reconfigurable antenna for individual training symbols in the set of training symbols during the training interval; and set a mode of the reconfigurable antenna after the training interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of reconfiguring a transceiver, comprising:
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transmitting, with a transmit chain of the transceiver, a set of training symbols during a training interval; selecting, with an antenna controller, a respective mode of a reconfigurable antenna of the transceiver for individual training symbols in the set of training symbols, the reconfigurable antenna having a plurality of reconfigurable antenna modes; calculating, with the antenna controller, a performance metric associated with one of the plurality of reconfigurable antenna modes of the reconfigurable antenna for each of the set of training symbols; and based on the performance metric, selecting, with the antenna controller, a mode of the reconfigurable antenna for use during a data transmission interval. - View Dependent Claims (11, 12, 13, 14)
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15. A transceiver, comprising:
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a digital signal processor configured to transmit a set of training symbols during a training interval; a transmit chain configured to transmit the set of training symbols over a reconfigurable antenna, the reconfigurable antenna having a plurality of reconfigurable antenna modes; a receive chain configured to receive at least one of the set of training symbols as self-interference; and an antenna controller configured to; select a respective mode of the reconfigurable antenna for individual training symbols in the set of training symbols during the training interval to calculate a performance metric; and set a mode of the reconfigurable antenna to reduce the self-interference based on the performance metric during a data transmission interval. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification