{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9820196","patent":{"patent_number":"US-9820196","title":"Mobile communication system, radio base station, and mobile station","assignee":null,"inventors":[],"filing_date":"2013-11-15T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04L","H04J","H04L","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04L","H04W","H04W"],"num_claims":10,"abstract":"A mobile station UE is enabled to perform appropriate security processing when the mobile station UE connected to a plurality of radio base stations eNB performs a handover while performing “Inter-site CA”. In a mobile communication system of the present invention, a radio base station eNB#1 and a radio base station eNB#2 are configured to manage security data in cells #1 to #3 under control, and a radio base station eNB#3 and a radio base station eNB#10 are configured to manage no security data in a cell #10 under control. When the mobile station UE switches from a state where CA is performed through the cells #1 and #10 to a state where CA is performed through the cells #2 and #10, the mobile station UE is configured to be notified of information indicating from which PDCP-PDU the security data in the cell #2 is to be applied."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Mobile communication system, radio base station, and mobile station","description":"A mobile station UE is enabled to perform appropriate security processing when the mobile station UE connected to a plurality of radio base stations eNB performs a handover while performing “Inter-sit","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9820196","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-9820196","citation_suggestion":"Patentable. \"Mobile communication system, radio base station, and mobile station\" (US-9820196). https://patentable.app/patents/US-9820196","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9820196","json":"https://patentable.app/api/llm-context/US-9820196","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:15:08.360Z"}