{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9661579","patent":{"patent_number":"US-9661579","title":"Per-tone power control in OFDM","assignee":null,"inventors":[],"filing_date":"2014-05-02T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04W","H04L","H04W","H04W","H04W","H04W"],"num_claims":9,"abstract":"A first communication device calculates channel state information (CSI), and based on the CSI, (i) determines a first signal attenuation level corresponding to signals transmitted over a first sub-carrier frequency signal, and (ii) determines a second signal attenuation level corresponding to signals transmitted over a second sub-carrier frequency signal. The first communication device transmits data encoded over the first sub-carrier frequency and the second and second sub-carrier frequency to a second communication device by (i) increasing power loaded to signals transmitted over a sub-carrier frequency from among the first sub-carrier frequency and the second sub-carrier frequency that is associated with greater signal attenuation, and (ii) decreasing power loaded to signals transmitted over a sub-carrier frequency from among the first sub-carrier frequency and the second sub-carrier frequency that is associated with lesser signal attenuation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Per-tone power control in OFDM","description":"A first communication device calculates channel state information (CSI), and based on the CSI, (i) determines a first signal attenuation level corresponding to signals transmitted over a first sub-car","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9661579","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-9661579","citation_suggestion":"Patentable. \"Per-tone power control in OFDM\" (US-9661579). https://patentable.app/patents/US-9661579","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9661579","json":"https://patentable.app/api/llm-context/US-9661579","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:43:46.311Z"}