	US 12,342,238 B2
	Seamless roaming of multi-radio station
Shivkumar Tadahal, Bengaluru (IN); Manoj Raveendranath Kamath, Bengaluru (IN); Jayaraman Nagarajan, Bengaluru (IN); Rohit Upmanyu, Bengaluru (IN); Deepak Kumar Damodaran, Bengaluru (IN); Sreenath Sharma, Bengaluru (IN); Raghvendra Gupta, Bengaluru (IN); Somaraju Dasam, Bengaluru (IN); Kumar Ramanna, Bengaluru (IN); and Samson Kativarapu, Hyderabad (IN)
Assigned to AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED, Singapore (SG)
Filed by AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED, Singapore (SG)
Filed on Jan. 24, 2022, as Appl. No. 17/582,712.
Prior Publication US 2023/0239762 A1, Jul. 27, 2023
Int. Cl. H04W 4/00 (2018.01); H04W 8/12 (2009.01); H04W 12/06 (2021.01); H04W 36/32 (2009.01); H04W 52/00 (2009.01); H04W 52/02 (2009.01); H04W 84/12 (2009.01)

CPC H04W 36/32 (2013.01) [H04W 8/12 (2013.01); H04W 12/06 (2013.01); H04W 52/00 (2013.01); H04W 52/02 (2013.01); H04W 84/12 (2013.01)]

20 Claims

1. A method for seamless WiFi roaming, comprising:

activating, by one of a multi-radio station or a target access point, a second communication link between the multi-radio station and the target access point to a higher power mode from a reduced power mode while a first communication link between the multi-radio station and an initial access point is still active, wherein activation of the second communication link comprises successful authentication and association via a physical layer medium and wherein the active first communication link has been successfully authenticated and associated; and

responsive to said activating the second communication link to the higher power mode, deactivating, by one of the multi-radio station or the target access point, a reduced power mode of the first communication link between the multi-radio station and the initial access point, wherein both the first communication link and the second communication link are maintained active with successful authentication and association for at least an overlap time interval.