US 11,659,559 B2
Antenna beam switching in multi-access point coordination
Ardalan Alizadeh, Milpitas, CA (US); Sivadeep Reddy Kalavakuru, Akron, OH (US); Gautam D. Bhanage, Milpitas, CA (US); John Matthew Swartz, Lithia, FL (US); and Matthew Aaron Silverman, Shaker Heights, OH (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Feb. 28, 2022, as Appl. No. 17/682,049.
Application 17/682,049 is a continuation of application No. 17/145,226, filed on Jan. 8, 2021, granted, now 11,265,857.
Prior Publication US 2022/0225325 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/21 (2023.01); H04B 7/06 (2006.01); H04L 43/0829 (2022.01); H04B 17/318 (2015.01)
CPC H04W 72/21 (2023.01) [H04B 7/0617 (2013.01); H04B 7/0695 (2013.01); H04B 17/318 (2015.01); H04L 43/0841 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method comprising:
establishing Multi-Access Point (AP) coordination between at least a first AP and a second AP;
determining an uplink operation is scheduled;
switching a first antenna of the first AP to a first narrow beamwidth;
sending a trigger frame to a first client in a first coverage area to trigger a first uplink transmission wherein the trigger frame is not received by a second client outside the first coverage area;
receiving the first uplink transmission from at least the first client in the first coverage area of the first narrow beamwidth;
switching the first antenna, of the first AP, to a first larger beamwidth for a next Multi-AP coordination operation;
switching a second antenna of the second AP to a second narrow beamwidth;
receiving a second uplink transmission from the second client in a second coverage area of the second narrow beamwidth; and
switching the second antenna of the second AP to a second larger beamwidth for the next Multi-AP coordination operation.