{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9820271","patent":{"patent_number":"US-9820271","title":"Downlink information sending method and receiving method, base station, and user device","assignee":null,"inventors":[],"filing_date":"2015-11-06T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W"],"num_claims":18,"abstract":"The present invention relates to a downlink information sending method, the sending method includes: allocating a cell radio network temporary identifier (C-RNTI) and an extension identifier to first user device user device, where a combination of the extension identifier and the C-RNTI is used to identify the first user device; notifying the first user device of the C-RNTI and the extension identifier; scrambling downlink control information (DCI) of the first user device by using the C-RNTI; and sending the scrambled DCI, where the scrambled DCI carries the C-RNTI and the extension identifier, so that the first user device communicates with a network according to the DCI when determining that the notified C-RNTI and the C-RNTI in the scrambled DCI are the same and the notified extension identifier and the extension identifier carried in the DCI are the same."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Downlink information sending method and receiving method, base station, and user device","description":"The present invention relates to a downlink information sending method, the sending method includes: allocating a cell radio network temporary identifier (C-RNTI) and an extension identifier to first ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9820271","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-9820271","citation_suggestion":"Patentable. \"Downlink information sending method and receiving method, base station, and user device\" (US-9820271). https://patentable.app/patents/US-9820271","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9820271","json":"https://patentable.app/api/llm-context/US-9820271","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:16:31.466Z"}