{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8493874","patent":{"patent_number":"US-8493874","title":"Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system","assignee":null,"inventors":[],"filing_date":"2009-04-21T00:00:00.000Z","publication_date":"2013-07-23T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L","H04B","H04B","H04B","H04L","H04L","H04L","H04L"],"num_claims":8,"abstract":"In an OFDM communication system, a mobile station provides a radio access network (RAN) a channel quality metric second order statistic, in one embodiment a signal to noise plus interference power ratio (SINR) second order statistic and in particular an SINR standard deviation and/or variance, along with a mean channel quality metric, that is, a mean SINR. By providing both a mean channel quality metric and a channel quality metric second order statistic, the communication system permits the RAN to create a more accurate fading profile of an associated air interface, and in particular a downlink of the air interface, thereby facilitating an improved scheduling decision over the prior art and assuring that a packet has a higher probability to go through a downlink channel without too many retransmissions."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system","description":"In an OFDM communication system, a mobile station provides a radio access network (RAN) a channel quality metric second order statistic, in one embodiment a signal to noise plus interference power rat","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8493874","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-8493874","citation_suggestion":"Patentable. \"Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system\" (US-8493874). https://patentable.app/patents/US-8493874","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8493874","json":"https://patentable.app/api/llm-context/US-8493874","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:31:28.295Z"}