{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9603183","patent":{"patent_number":"US-9603183","title":"Method and system for keeping single radio voice call continuity session alive","assignee":null,"inventors":[],"filing_date":"2011-03-31T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["H04W","H04L","H04W"],"num_claims":10,"abstract":"A method and system are provided for keeping a single radio voice call continuity session alive. The method comprises, during switching of a terminal from a packet switch domain to a circuit switch domain, an application layer gateway establishing a new signaling connection with an enhanced mobile switch center after receiving a first transfer request and notifying a service centralization and continuity application server (SCC AS) to establish a new signaling connection with the application layer gateway, and the SCC AS establishing a new signaling connection with the application layer gateway according to the notification. Using the technical scheme of the method and system provided, the problem of call interruption due to a UE being unable to perform IMS re-registration in a destination domain in a single radio voice call continuity process in the prior art is solved."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and system for keeping single radio voice call continuity session alive","description":"A method and system are provided for keeping a single radio voice call continuity session alive. The method comprises, during switching of a terminal from a packet switch domain to a circuit switch do","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9603183","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-9603183","citation_suggestion":"Patentable. \"Method and system for keeping single radio voice call continuity session alive\" (US-9603183). https://patentable.app/patents/US-9603183","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9603183","json":"https://patentable.app/api/llm-context/US-9603183","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:09:16.840Z"}