{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9736686","patent":{"patent_number":"US-9736686","title":"Methods and apparatus for direct communication key establishment","assignee":null,"inventors":[],"filing_date":"2015-01-19T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04W","H04W","H04L","H04W","H04W","H04W"],"num_claims":27,"abstract":"Methods (100, 200, 300) and apparatus (400, 500, 600, 700, 800, 900) are disclosed for establishing a key for direct communication between a User Equipment device, UE, and a device. The methods and apparatus cooperate to form a system for securing direct communication between a UE and a device over an interface. The system comprises a UE (20), a device (30) and a Direct Communication Element (40). The UE (20) is configured to establish a UE shared key with a Bootstrapping Server Function, BSF (50), using a Generic Bootstrapping Architecture, GBA, procedure, to discover the device (30) through a discovery procedure after establishing the UE shared key, and to derive a direct communication key from at least the UE shared key. The device (30) is configured to receive a transaction identifier associated with the UE shared key from the UE (20), to send the transaction identifier to the Direct Communication Element (40), and to receive the direct communication key from the Direct Communication Element (40). The Direct Communication Element (40) is configured to receive the transaction identifier from the device (30), to obtain a shared session key from the BSF (50); to derive the direct communication key, and to send the direct communication key to the device (30).Also disclosed are a computer product operable to carry out methods according to the present invention and a computer program product comprising a computer readable medium having such a computer product stored thereon."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus for direct communication key establishment","description":"Methods (100, 200, 300) and apparatus (400, 500, 600, 700, 800, 900) are disclosed for establishing a key for direct communication between a User Equipment device, UE, and a device. The methods and ap","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9736686","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-9736686","citation_suggestion":"Patentable. \"Methods and apparatus for direct communication key establishment\" (US-9736686). https://patentable.app/patents/US-9736686","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9736686","json":"https://patentable.app/api/llm-context/US-9736686","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:00:01.087Z"}