{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9591471","patent":{"patent_number":"US-9591471","title":"Non-call service processing method, apparatus and system in circuit switch fallback system","assignee":null,"inventors":[],"filing_date":"2013-09-09T00:00:00.000Z","publication_date":"2017-03-07T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W","H04W","H04W"],"num_claims":10,"abstract":"A non-call service processing method, apparatus and system in a Circuit Switch Fallback (CSFB) system are provided. The method includes that UE transmits a location updating request to VLR2 where a new LAI is located; VLR2 receiving the location updating request transmits a location updating request to a HLR; the HLR receiving the location updating request transmits a location cancellation message carrying an address of VLR2 to VLR1 where original LAI is located; VLR1 receiving the location cancellation message forwards a received non-call service request to VLR2; VLR2 processes the received non-call service request, and transmits a processing result to VLR1; and VLR1 transmits the received processing result to the HLR or a GMLC which transmitted the non-call service request. Thus the interruption of a non-call service can be avoided, and the normal use of UE can be ensured."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Non-call service processing method, apparatus and system in circuit switch fallback system","description":"A non-call service processing method, apparatus and system in a Circuit Switch Fallback (CSFB) system are provided. The method includes that UE transmits a location updating request to VLR2 where a ne","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9591471","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-9591471","citation_suggestion":"Patentable. \"Non-call service processing method, apparatus and system in circuit switch fallback system\" (US-9591471). https://patentable.app/patents/US-9591471","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9591471","json":"https://patentable.app/api/llm-context/US-9591471","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:04:27.981Z"}