US Patent No. 10,925,113
SECONDARY AUTHORIZATION AT PDU SESSION ESTABLISHMENT AT HOME ROUTED ROAMING
| Patent No. | 10,925,113 |
|---|---|
| Issue Date | February 16, 2021 |
| Title | Secondary Authorization At Pdu Session Establishment At Home Routed Roaming |
| Inventorship | Juying Gan, Shanghai (CN) Yunjie Lu, Shanghai (CN) |
| Assignee | Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE) |
Claim of US Patent No. 10,925,113
1. A method, performed by a session management function (V-SMF) of a visited public land mobile network (VPLMN) for establishing a user-requested PDU session to be routed through the user's home PLMN (HPLMN) the method comprising:receiving, a first request to establish a home-routed PDU session, wherein the first request identifies an SMF, H-SMF, in the HPLMN;
sending, to the H-SMF, a second request to create the home-routed PDU session, wherein the second request includes an identifier of a resource in the V-SMF that is associated with the PDU session; and
receiving, from the H-SMF in response to the second request, an identifier of a resource in the H-SMF that is associated with the PDU session and allows the V-SMF to address services of the H-SMF related to the PDU session.
sending, to the H-SMF, a second request to create the home-routed PDU session, wherein the second request includes an identifier of a resource in the V-SMF that is associated with the PDU session; and
receiving, from the H-SMF in response to the second request, an identifier of a resource in the H-SMF that is associated with the PDU session and allows the V-SMF to address services of the H-SMF related to the PDU session.