Method and system for communicating feedback information in a multiple user multiple input multiple output (MU-MIMO) communication system
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Accused Products
Abstract
A method and system for communicating feedback information in a multiple user multiple input multiple output (MU-MIMO) communication system are presented. In one aspect of the method and system, a beamformer station may communicate a feedback information request to a plurality of beamformee stations. The feedback information request may request feedback data for a plurality of RF channel bands. The RF channel bands may form a multichannel. The beamformer may subsequently transmit a plurality of signals utilizing the RF channel bands within the multichannel. Each of the beamformees may receive the plurality of subsequently transmitted signals. A beamformee may generate the requested feedback data for each RF channel band within the multichannel. The beamformee may generate a beamforming report, which comprises the feedback data, which is generated across the plurality of RF channel bands in the multichannel. The beamformee may transmit the beamforming report to the beamformer.
8 Citations
21 Claims
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1. (canceled)
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2. A wireless communication device comprising:
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a communication interface configured to; transmit a sounding frame that includes a feedback information request to a plurality of other wireless communication devices; and receive first and second compressed beamforming report frames respectively from a first one and a second one of the plurality of wireless communication devices that are based on the feedback information request; and transmit a multi-user multiple-input-multiple-output (MU-MIMO) frame to the first one and the second one of the plurality of wireless communication devices; and a processor configured to; generate a beamforming matrix based on the first and second compressed beamforming report frames; and generate the MU-MIMO frame based on the beamforming matrix. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A wireless communication device comprising:
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a communication interface configured to; transmit a sounding frame that includes a feedback information request to a plurality of other wireless communication devices; and receive a first compressed beamforming report frame from a first one of the plurality of wireless communication devices that is based on the feedback information request, wherein the first compressed beamforming report frames includes a first multiband control field that includes a first multiple-input-multiple-output (MIMO) channel bandwidth field that indicates a first bandwidth of 20 mega-Hertz (MHz), 40 MHz, 80 MHz, or 120 MHz of a first reported channel band; receive a second compressed beamforming report frame from a second one of the plurality of wireless communication devices that is based on the feedback information request, wherein the second compressed beamforming report frames includes a second multiband control field that includes a second MIMO channel bandwidth field that indicates a second bandwidth of 20 MHz, 40 MHz, 80 MHz, or 120 MHz of a second reported channel band; a processor configured to; generate a beamforming matrix based on the first and second compressed beamforming report frames; and generate the MU-MIMO frame based on the beamforming matrix. - View Dependent Claims (11, 12, 13, 14)
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15. A method for execution by a wireless communication device, the method comprising:
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transmitting a sounding frame that includes a feedback information request to a plurality of other wireless communication devices; receiving a first compressed beamforming report frame from a first one of the plurality of wireless communication devices, wherein the first compressed beamforming report frame is based on the feedback information request; receiving a second compressed beamforming report frame from a second one of the plurality of wireless communication devices, wherein the second compressed beamforming report frame is based on the feedback information request; generating a beamforming matrix based on the first and second compressed beamforming report frames; generating a multi-user multiple-input-multiple-output (MU-MIMO) frame based on the beamforming matrix; and transmitting the MU-MIMO frame to the first one and the second one of the plurality of wireless communication devices. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification