US 12,256,280 B2
Mechanism for coordinating seamless service continuity to edge application server at relocation
Attila Mihály, Dunakeszi (HU); and Maria Luisa Mas Rosique, Tres Cantos (ES)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/020,647
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 12, 2021, PCT No. PCT/IB2021/057451
§ 371(c)(1), (2) Date Feb. 10, 2023,
PCT Pub. No. WO2022/034539, PCT Pub. Date Feb. 17, 2022.
Claims priority of provisional application 63/064,689, filed on Aug. 12, 2020.
Prior Publication US 2023/0337095 A1, Oct. 19, 2023
Int. Cl. H04W 36/18 (2009.01); H04L 67/148 (2022.01); H04W 36/12 (2009.01); H04W 76/22 (2018.01)
CPC H04W 36/18 (2013.01) [H04L 67/148 (2013.01); H04W 36/125 (2018.08); H04W 76/22 (2018.02)] 21 Claims
OG exemplary drawing
 
2. A method for coordinating seamless service continuity to Edge Application Server, EAS, at relocation in a cellular communications system, the method comprising sending, by an Application Function, AF, to a Policy Control Function, PCF, a steering request comprising application steering information that comprises a keepExistingPSA indication that indicates that a current user plane, UP, path to a current Data Network Access Identifier, DNAI, and to an Edge Application Server, EAS, should be maintained while a new path to a new DNAI and EAS is established.