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

Claim 9:
10. 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;
based on the first CSI, determining a first precoding matrix;
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 second CSI, determining a second precoding matrix, the second precoding matrix indicating a change in a state of the channel from the state of the channel at the first time of the first sounding to the second time of the second sounding;
based on the first and second precoding matrices, determining a forward-predictive precoding matrix, wherein the forward-predictive precoding matrix comprises a state of the channel at a future time and is consistent with the change in the state of the channel over a 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.