{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9813951","patent":{"patent_number":"US-9813951","title":"Method and apparatus for cell update while in an enhanced cell—FACH state","assignee":null,"inventors":[],"filing_date":"2016-08-02T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04L","H04W","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":20,"abstract":"A method and apparatus for cell update while in a Cell_FACH state are disclosed. After selecting a target cell, system information is read from the target cell including high speed downlink shared channel (HS-DSCH) common system information. A radio network temporary identity (RNTI) received in a source cell is cleared and a variable HS_DSCH_RECEPTION is set to TRUE. An HS-DSCH medium access control (MAC-hs) entity is configured based on the HS-DSCH common system information. High speed downlink packet access (HSDPA) transmission is then received in the target cell. A CELL UPDATE message is sent to notify of a cell change. The HSDPA transmission may be received using a common H-RNTI broadcast in the system information, a reserved H-RNTI as requested in a CELL UPDATE message, or a temporary identity which is a subset of a U-RNTI. The MAC-hs entity may be reset."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for cell update while in an enhanced cell—FACH state","description":"A method and apparatus for cell update while in a Cell_FACH state are disclosed. After selecting a target cell, system information is read from the target cell including high speed downlink shared cha","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9813951","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-9813951","citation_suggestion":"Patentable. \"Method and apparatus for cell update while in an enhanced cell—FACH state\" (US-9813951). https://patentable.app/patents/US-9813951","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9813951","json":"https://patentable.app/api/llm-context/US-9813951","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:29:14.511Z"}