{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9609647","patent":{"patent_number":"US-9609647","title":"Method for receiving downlink signal, and user device; and method for transmitting downlink signal, and base station","assignee":null,"inventors":[],"filing_date":"2013-09-25T00:00:00.000Z","publication_date":"2017-03-28T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04W","H04W","H04W","H04W","H04W","H04L","H04L","H04L"],"num_claims":8,"abstract":"In the present invention, a demodulation reference signal is transmitted using a plurality of settings in which demodulation reference signals occupy different positions in at least a density or time-frequency resource region of the demodulation reference signals. A base station can transmit, to the user device, information indicating a setting related to a downlink signal or a setting related to an uplink signal from among the plurality of settings, and the user device can receive the demodulation reference signal with the downlink signal or transmit the demodulation reference signal With the uplink signal according to the indicated setting."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for receiving downlink signal, and user device; and method for transmitting downlink signal, and base station","description":"In the present invention, a demodulation reference signal is transmitted using a plurality of settings in which demodulation reference signals occupy different positions in at least a density or time-","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9609647","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-9609647","citation_suggestion":"Patentable. \"Method for receiving downlink signal, and user device; and method for transmitting downlink signal, and base station\" (US-9609647). https://patentable.app/patents/US-9609647","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9609647","json":"https://patentable.app/api/llm-context/US-9609647","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:36:23.166Z"}