US Patent Issued to Telefonaktiebolaget LM Ericsson on March 25 for "Restoration of a PDN connection at PGW failure" (Swedish Inventor)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,915, issued on March 25, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).

"Restoration of a PDN connection at PGW failure" was invented by Yong Yang (Kallered, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operation of a cellular communications system is disclosed. The method comprises: at a MME: receiving an attach request from a UE; sending a location update request to a HSS; receiving a location update acknowledgement; sending, to a DNS, a DNS query request comprising an APN FQDN; receiving a DNS query response comprising information that indicates candidate PGWs that satisfy the DNS query request and at le...