Bidirectional iterative beam forming
First Claim
1. A wireless device, comprising:
- a phased antenna array;
a transceiver communicatively coupled to the phased antenna array; and
an antenna control module communicatively coupled to the transceiver and the phased antenna array, the antenna control module operative to;
initiate beam formation operations using an iterative training scheme between a first device and a second device of a wireless personal area network,communicate training signals and feedback information between the first device and the second device using only high rate physical channels, andduring a beam refinement phase, iteratively determine antenna-array weight vectors for a directional transmit beam pattern for the phased antenna array of the first device using feedback information from the second device and send feedback information to the second device using the directional transmit beam pattern for the phased antenna array of the first device determined from feedback information from the second device until a determined signal to noise ratio (SNR) value for a reliable data communication is reached.
1 Assignment
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Accused Products
Abstract
Bidirectional iterative beam forming techniques are described. An apparatus may include a wireless device having an antenna control module operative to initiate beam formation operations using an iterative training scheme to form a pair of communications channels for a wireless network, the antenna control module to communicate training signals and feedback information with a peer device via the transceiver and phased antenna array using partially or fully formed high rate channels, and iteratively determine antenna-array weight vectors for a directional transmit beam pattern for the phased antenna array using feedback information from the peer device. Other embodiments are described and claimed.
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Citations
21 Claims
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1. A wireless device, comprising:
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a phased antenna array; a transceiver communicatively coupled to the phased antenna array; and an antenna control module communicatively coupled to the transceiver and the phased antenna array, the antenna control module operative to; initiate beam formation operations using an iterative training scheme between a first device and a second device of a wireless personal area network, communicate training signals and feedback information between the first device and the second device using only high rate physical channels, and during a beam refinement phase, iteratively determine antenna-array weight vectors for a directional transmit beam pattern for the phased antenna array of the first device using feedback information from the second device and send feedback information to the second device using the directional transmit beam pattern for the phased antenna array of the first device determined from feedback information from the second device until a determined signal to noise ratio (SNR) value for a reliable data communication is reached. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of beamforming comprising:
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initiating beam formation operations using an iterative training scheme between a first device and a second device of a wireless personal area network; communicating training signals and feedback information between the first device and the second device using only high rate physical channels; and during a beam refinement phase, determining antenna-array weight vectors for a directional transmit beam pattern for a phased antenna array of the first device using feedback information from the second device, and sending feedback information from the first device to the second device using the directional transmit beam pattern for the phased antenna array of the first device determined from feedback information from the second device until a determined signal to noise ratio (SNR) value for a reliable data communication is reached. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An article comprising a non-transitory computer-readable storage medium containing instructions that when executed enable a system to:
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initiate beam formation operations using an iterative training scheme between a first device and a second device of a wireless personal area network; communicate training signals and feedback information between the first device and the second device using only high rate physical channels; and during a beam refinement phase, determine antenna-array weight vectors for a directional transmit beam pattern for a phased antenna array of the first device using feedback information from the second device, and send feedback information from the first device to the second device using the directional transmit beam pattern for the phased antenna array of the first device determined from feedback information from the second device until a determined signal to noise ratio (SNR) value for a reliable data communication is reached. - View Dependent Claims (18, 19, 20, 21)
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Specification