Patent ID: 11936453
Assignee: CISCO TECHNOLOGY, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method comprising:
establishing a wireless communication with a receive antenna of a client device over a channel;
performing a first sounding to the receive antenna;
responsive to the first sounding, receiving first channel state information (CSI) from the client device at a first time;
performing a second sounding to the receive antenna;
responsive to the second sounding, receiving second CSI from the client device at a second time;
based on the first CSI and the second CSI, determining a change in a state of the channel over a time period between the first time and the second time;
based on the change in the state of the channel, determining a forward-predictive channel state matrix, wherein the forward-predictive channel state matrix comprises the state of the channel at a future time and is consistent with the determined change in the state of the channel over the time period between the first time of the first sounding and the second time of the second sounding;
based on the forward-predictive channel state matrix, determining a forward-predictive precoding matrix, wherein the forward-predictive precoding matrix comprises the state of the channel at the future time and is consistent with the determined change in the state of the channel over the time period between the first time of the first sounding and the second time of the second sounding; and
applying the forward-predictive precoding matrix to a data transmission transmitted to the receive antenna of the client device after the second time.