{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9801100","patent":{"patent_number":"US-9801100","title":"Enabling eCSFB in HETNETs","assignee":null,"inventors":[],"filing_date":"2014-06-05T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["H04W","H04M","H04W","H04W","H04W","H04W","H04W"],"num_claims":19,"abstract":"An enhanced Circuit Switch Fallback enabled Heterogeneous Network (HETNET) is provided by the present invention in which the 1×IWS functionality is co-located with LTB eNB. It also tunnels 1×RTT over LTE messages directly to the Convergence Server over SIP, Further, it enables distributed PN-FAP identification determination. A mobile management, entity is configured to maintain multiple 1×CS IWS tunnels. Multiple 1×CS IWS tunnels are established, by using the same S1 tunnel end point used in establishing a Borne evolved Node B Gateway of the HETNET. The HETNET is configured to provide a correct FAP identification to the convergence server so that handover preparation can be done."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Enabling eCSFB in HETNETs","description":"An enhanced Circuit Switch Fallback enabled Heterogeneous Network (HETNET) is provided by the present invention in which the 1×IWS functionality is co-located with LTB eNB. It also tunnels 1×RTT over ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9801100","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-9801100","citation_suggestion":"Patentable. \"Enabling eCSFB in HETNETs\" (US-9801100). https://patentable.app/patents/US-9801100","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9801100","json":"https://patentable.app/api/llm-context/US-9801100","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:04:28.501Z"}