US Patent No. 10,798,753

METHODS AND DEVICES FOR SUPPORTING NETWORK INITIATED PDU SESSION ESTABLISHMENT BETWEEN AN USER EQUIPMENT, UE, AND A DATA NETWORK NAME, DNN, IN A TELECOMMUNICATION NETWORK


Patent No. 10,798,753
Issue Date October 06, 2020
Title Methods And Devices For Supporting Network Initiated Pdu Session Establishment Between An User Equipment, Ue, And A Data Network Name, Dnn, In A Telecommunication Network
Inventorship David Castellanos Zamora, Madrid (ES)
Cristina Ruiz Balmaseda, Madrid (ES)
Assignee TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)

Claim of US Patent No. 10,798,753

1. A method of operation by an Access and Mobility Function (AMF) node in a telecommunication network, the method comprising:receiving a registration request for registering a User Equipment (UE) in the telecommunication network;
retrieving subscription data associated with the UE from a Unified Data Management (UDM) node, responsive to authentication of the UE for registration in the telecommunication network, the subscription data indicating a Data Network (DN) to which the UE should establish a Packet Data Unit (PDU) session via the telecommunication network upon registration of the UE in the telecommunication network, the subscription data including a Data Network Name (DNN) identifying the DN; and
triggering the UE to establish the PDU session with the DN by sending a registration complete message for the UE that confirms registration of the UE in the telecommunication network and conveys instructions instructing the UE to establish the PDU session with the DN.