{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9769640","patent":{"patent_number":"US-9769640","title":"Emergency center selection method, device, and system","assignee":null,"inventors":[],"filing_date":"2016-06-29T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W","H04W","H04M"],"num_claims":18,"abstract":"The present application discloses an emergency center selection method, device, and system. The method includes: receiving, by an MME, a request message initiated by UE located in an LTE network for CSFB of an emergency call, and sending, to an eNB, a first notification message that carries an emergency call indication; and sending, to an MSC, a first handover request message that carries information about a cell of a 3G network or information about a cell that is of the LTE network and on which the UE currently camps, so that after the MSC receives the first handover request message, the MSC may select an emergency center according to the information about the cell of the 3G network or the information about the cell of the LTE network in the first handover request message, and further quickly set up a call connection between the UE and the emergency center."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Emergency center selection method, device, and system","description":"The present application discloses an emergency center selection method, device, and system. The method includes: receiving, by an MME, a request message initiated by UE located in an LTE network for C","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9769640","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-9769640","citation_suggestion":"Patentable. \"Emergency center selection method, device, and system\" (US-9769640). https://patentable.app/patents/US-9769640","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9769640","json":"https://patentable.app/api/llm-context/US-9769640","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:01:04.919Z"}