Method for Selecting Antennas and Beams in MIMO Wireless LANs
First Claim
1. A computer implemented method for selecting antennas in a multiple-input, multiple-output wireless local area network including a plurality of stations, each station includes a set of antennas, comprising the steps of:
- receiving multiple transmitted sounding packets in a station, each sounding packet corresponding to a different subset of the set of antennas;
estimating a channel matrix for each subset of antennas;
sending a frame including a high throughput (HT) control field to initiate a selecting of antennas after estimating the channel matrix for each subset of antennas; and
selecting a subset of antennas according to the channel matrics.
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Accused Products
Abstract
A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets. A frame including a high throughput (HT) control field is sent to initiate a selecting of antennas, and a subset of antennas is selected according to the channel matrix.
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Citations
23 Claims
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1. A computer implemented method for selecting antennas in a multiple-input, multiple-output wireless local area network including a plurality of stations, each station includes a set of antennas, comprising the steps of:
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receiving multiple transmitted sounding packets in a station, each sounding packet corresponding to a different subset of the set of antennas; estimating a channel matrix for each subset of antennas; sending a frame including a high throughput (HT) control field to initiate a selecting of antennas after estimating the channel matrix for each subset of antennas; and selecting a subset of antennas according to the channel matrics. - 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)
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Specification