{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11477640","patent":{"patent_number":"US-11477640","title":"Security protection method and apparatus in wireless communication system","assignee":null,"inventors":[],"filing_date":"2019-05-13T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["H04L","H04W","H04L","H04W","H04L","H04L"],"num_claims":20,"abstract":"A method of performing a security mode control procedure by a user equipment (UE), and an apparatus therefor are disclosed. The method includes performing, over a 3rd generation partnership project (3GPP) access, a first authentication procedure and a first key agreement procedure with an access and mobility management function (AMF), wherein a key set identifier (ngKSI) is changed during the first authentication procedure and the first key agreement procedure, receiving, from the AMF over the 3GPP access, a first security mode command message including the ngKSI, and receiving, from the AMF over a non-3GPP access, a second security mode command message including the ngKSI, wherein the UE is registered to the AMF and a same public land mobile network (PLMN) over both the 3GPP access and the non-3GPP access."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Security protection method and apparatus in wireless communication system","description":"A method of performing a security mode control procedure by a user equipment (UE), and an apparatus therefor are disclosed. The method includes performing, over a 3rd generation partnership project (3","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11477640","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-11477640","citation_suggestion":"Patentable. \"Security protection method and apparatus in wireless communication system\" (US-11477640). https://patentable.app/patents/US-11477640","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11477640","json":"https://patentable.app/api/llm-context/US-11477640","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:11:40.676Z"}