{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9635636","patent":{"patent_number":"US-9635636","title":"Location processing in a volte network","assignee":null,"inventors":[],"filing_date":"2015-12-31T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04L","H04M","H04M","H04M","H04M","H04M","H04M","H04M","H04W","H04W"],"num_claims":15,"abstract":"Systems and methods for processing location or time zone information updates during a VoLTE call session teardown are provided. In one aspect, a Network Element (NE) of the IP Multimedia Subsystem (IMS) transmits a Session Initiation Protocol (SIP) session end message to a subscriber User Equipment (UE) to teardown a VoLTE session. The NE generates (but does not send) an Accounting Charge Request (ACR) STOP message for the VoLTE session. The NE receives a SIP response message, and determines if it includes an update to the UE's last known User Location Information (ULI) or the UE's last known Time-Zone (TZ). The NE includes the any updates to the ULI or TZ in the generated ACR STOP message if included in the SIP response, and, transmits the ACR STOP message to an Offline Charging System (OFCS) of the telecommunications network using the Diameter Protocol."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Location processing in a volte network","description":"Systems and methods for processing location or time zone information updates during a VoLTE call session teardown are provided. In one aspect, a Network Element (NE) of the IP Multimedia Subsystem (IM","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9635636","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-9635636","citation_suggestion":"Patentable. \"Location processing in a volte network\" (US-9635636). https://patentable.app/patents/US-9635636","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9635636","json":"https://patentable.app/api/llm-context/US-9635636","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:25:01.719Z"}