Patent ID: 11943016
Assignee: CISCO TECHNOLOGY, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method performed by a serving wireless access point capable of wireless communication with one or more wireless client devices within a physical space within which a plurality of shield wireless transceiver devices are positioned around a perimeter of, or in an arrangement within, the physical space, wherein each of the shield wireless transceiver devices includes one or more directional antennas pointing outward from the physical space so that transmissions from respective shield wireless transceiver devices are strongest in a predetermined area within the physical space or outside of the physical space where shielding is to be achieved for transmissions between the serving wireless access point and the one or more wireless client devices, the method including:
for a downlink transmission to be sent from the serving wireless access point to a first wireless client device of the one or more wireless client devices:
sending a multi-user multiple-input multiple-output (MU-MIMO) transmission that includes a stream containing downlink traffic intended for the first wireless client device; and
causing one or more first shield wireless transceiver devices of the plurality of shield wireless transceiver devices to send a downlink cover transmission while the downlink traffic is being transmitted to the first wireless client device that creates interference with reception of the downlink traffic outside of the physical space of the downlink traffic transmitted to the first wireless client device.