US 12,170,894 B2
Selective access point key caching
Jacob Thomas, Saratoga, CA (US); and Sanjoy Dey, Saratoga, CA (US)
Assigned to Juniper Networks, Inc., Sunnyvale, CA (US)
Filed by Juniper Networks, Inc., Sunnyvale, CA (US)
Filed on Mar. 31, 2022, as Appl. No. 17/657,588.
Prior Publication US 2023/0319555 A1, Oct. 5, 2023
Int. Cl. H04W 84/12 (2009.01); H04L 9/08 (2006.01); H04L 9/40 (2022.01); H04L 67/5681 (2022.01); H04W 8/12 (2009.01); H04W 12/0431 (2021.01); H04W 36/00 (2009.01); H04W 88/08 (2009.01)
CPC H04W 12/0431 (2021.01) [H04W 8/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a plurality of access point (AP) devices configured to provide a wireless network at a site, the plurality of AP devices including a first AP device comprising one or more processors configured to:
determine a set of roaming candidates within the site for client devices connected to the first AP device, wherein the set of roaming candidates includes one or more AP devices of the plurality of AP devices selected according to one or more selection criteria;
in response to establishing a connection with a client device, cache a key associated with the client device in a memory of the first AP device;
generate a packet that includes the key associated with the client device and a list of AP devices, wherein the list of AP devices includes one or more identifiers of the one or more AP devices within the set of roaming candidates for the first AP device; and
transmit the packet to the plurality of AP devices at the site.