Lens antenna array system with power optimization for improved signal quality
AssigneeQUALCOMM Incorporated
InventorsYehonatan DALLAL, Shay LANDIS, Ran BERLINER, Assaf TOUBOUL
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Abstract
A lens antenna array system for wireless communication is provided that includes a transmitter having a first lens and a receiver having a second lens. The transmitter transmits a first plurality of RF signals across a plurality of near-field communication links to the receiver. Based upon a first signal quality determination at the receiver, the transmitter adjusts a plurality of gains to increase a signal quality for a second plurality of RF signals transmitted across the plurality of near-field communication links.
Claims28
A lens antenna array system, comprising:
- a first processor configured to provide a plurality of baseband input data streams;
- a plurality of modulators corresponding to the plurality of baseband input data streams, each modulator in the plurality of modulators configured to modulate a respective baseband input data stream from the plurality of baseband input data streams to produce a modulated RF signal;
- a plurality of power amplifiers corresponding to the plurality of modulators, each power amplifier configured to amplify a respective modulator's modulated RF signal according to a gain to produce an amplified modulated RF signal;
- a first lens;
- a plurality of transmit antennas corresponding to the plurality of power amplifiers, each transmit antenna in the plurality of transmit antennas being configured to transmit the amplified modulated RF signal from a respective power amplifier, the plurality of transmit antennas being arranged in a focal region of the first lens;
- and
- a power controller configured to adjust each gain so that a gain of a first subset of power amplifiers in the plurality of power amplifiers is reduced from a default gain level and so that a gain of a second subset of power amplifiers in the plurality of power amplifiers is increased from the default gain level.
A method of wireless communication, comprising:
- at a transmitter including an array of transmit antennas arranged in a focal region of a transmit lens, amplifying a plurality of first modulated RF signals through a plurality of power amplifiers according to a default gain to produce a corresponding plurality of first amplified modulated RF signals;
- transmitting from each transmit antenna a respective first amplified modulated RF signal from the plurality of first amplified modulated RF signals to form a plurality of first transmitted RF signals, each first transmitted RF signal refracting through the transmit lens and near-field propagating to a receiver;
- adjusting the default gain for each power amplifier responsive to a first signal quality determination for the plurality of first transmitted RF signals to form a plurality of adjusted gains;
- and
- amplifying a plurality of second modulated RF signals through the plurality of power amplifiers according to the plurality of adjusted gains to produce a corresponding plurality of second amplified modulated RF signals.
A method of wireless communication, comprising:
- in a lens antenna system including a receiver having an array of receive antennas arranged in a focal region of a second lens, receiving at each receive antenna a first RF signal that near-field propagated from a transmitter to form a plurality of first received RF signals;
- at the receiver, forming a plurality of first signal quality determinations corresponding to the plurality of first received RF signals;
- and
- reporting the plurality of first signal quality determinations to the transmitter.
A method of wireless communication, comprising:
- in a lens antenna array system including a transmitter and a receiver, near-field propagating from a transmit lens in the transmitter to the receiver a plurality of first amplified RF signals;
- at the transmitter, receiving from the receiver a signal quality determination for the plurality of first amplified RF signals;
- and
- adjusting a plurality of gains for a plurality of power amplifiers in the transmitter responsive to the signal quality determination.
Dependencies are inferred from the claim text.