{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11943842","patent":{"patent_number":"US-11943842","title":"Secondary authorization at PDU session establishment for home routed roaming","assignee":null,"inventors":[],"filing_date":"2022-12-01T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["H04L","H04W","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":20,"abstract":"Exemplary embodiments include methods for establishing a user-requested protocol data unit (PDU) session in a user's visited public land mobile network (VPLMN), by a session management function (V-SMF) in the VPLMN. Such methods include receiving, from an access and mobility management function (AMF) in the VPLMN, a PDUSession_CreateSMContext Request to establish the PDU session to be routed through the user's home PLMN (HPLMN). The PDUSession_CreateSMContext Request identifies an SMF (H-SMF) in the user's HPLMN. Such methods include sending, to the identified H-SMF, a PDUSession_Create Request to create the PDU session. The PDUSession_Create Request includes an identifier of a session management (SM) context, in the V-SMF, that is associated with the PDU session. Such methods include receiving, from the H-SMF, a PDUSession_Update Request that includes an identifier of an SM context, in the H-SMF, that is associated with the PDU session. Embodiments also include complementary methods performed by the H-SMF."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secondary authorization at PDU session establishment for home routed roaming","description":"Exemplary embodiments include methods for establishing a user-requested protocol data unit (PDU) session in a user's visited public land mobile network (VPLMN), by a session management function (V-SMF","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11943842","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11943842","citation_suggestion":"Patentable. \"Secondary authorization at PDU session establishment for home routed roaming\" (US-11943842). https://patentable.app/patents/US-11943842","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11943842","json":"https://patentable.app/api/llm-context/US-11943842","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T17:58:41.769Z"}