Adaptive beam-steering methods to maximize wireless link budget and reduce delay-spread using multiple transmit and receive antennas
First Claim
Patent Images
1. A method comprising:
- performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.
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Abstract
A method and apparatus for adaptive beam-steering are disclosed. In one embodiment, the method comprises performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.
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Citations
58 Claims
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1. A method comprising:
performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus comprising:
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a transceiver having a first digital baseband processing unit coupled to a first phased array antenna; and
a receiver having a second digital baseband processing unit coupled to a second phased array antenna, wherein the first and second digital baseband processing units cooperate to perform adaptive beam steering, using multiple transmit and receive antennas, by iteratively performing a pair of trainings, wherein the pair of trainings includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A method comprising:
performing adaptive beam forming that includes performing a beam search process to identify a beam direction and performing a beam tracking process during a data transfer state to track the beam. - View Dependent Claims (56)
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57. A transmitter for use in communication with a receiver, the transmitter comprising:
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a processor; and
a phased array beamforming antenna, wherein the processor controls the antenna to perform adaptive beam steering using multiple transmit antennas in conjunction with receive antennas of the receiver by iteratively performing a set of training operations, wherein one of the training operations comprises the processor causing the phased array beamforming antenna to transmit a first training sequence while a receive antenna-array weight vector of the receiver is set and a transmitter antenna-array weight vector switches between weight vectors with a set of weight vectors, and further wherein another of the training operations comprises the processor causing the phased array beamforming antenna to transmit a second training sequence while a transmitter antenna-array weight vector is set as part of a process to calculate the receive antenna-array weight vector.
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58. A receiver for use in communication with a transmitter, the receiver comprising:
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a processor; and
a phased array beamforming antenna, wherein the processor controls the antenna to perform adaptive beam steering using multiple receive antennas in conjunction with transmit antennas of the transmitter by iteratively performing a set of training operations, wherein one of the training operations comprises the processor setting a receive antenna-array weight vector during a process for estimating a transmit antenna-array weight vector by having the transmitter transmit a first training sequence while the receive antenna-array weight vector is set, and further wherein another of the training operations comprises the processor calculate the receive antenna-array weight vector when the transmitter transmits a second training sequence while the transmitter antenna-array weight vector is set.
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Specification