{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8514957","patent":{"patent_number":"US-8514957","title":"Method and apparatus for spectrally efficient link adaptation using HARQ in OFDMA systems","assignee":null,"inventors":[],"filing_date":"2009-04-28T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H04W","H04B","H04B","H04J","H04L","H04L"],"num_claims":20,"abstract":"A method to increase spectral efficiency in a communication system is described herein. The communication system includes at least one mobile station and is capable of transmitting messages encoded according to a plurality of available modulation coding schemes (“MCSs”). Each available MCS includes a modulation scheme and an effective coding rate. The MCSs are indexed according to increasing complexity. A signal-to-interference ratio (“SINR”) is determined which is sufficient to satisfy a predetermined frame error rate (“FER”). A first MCS and a corresponding amount of transmissions needed to satisfy the predetermined FER at the SINR using the first MCS are determined. The first MCS has a higher effective coding rate than a second MCS. The second MCS sufficiently satisfies the predetermined FER at the SINR in a single transmission. A message encoded according to the first MCS is transmitted through the communication system using hybrid automatic repeat request (“HARQ”)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for spectrally efficient link adaptation using HARQ in OFDMA systems","description":"A method to increase spectral efficiency in a communication system is described herein. The communication system includes at least one mobile station and is capable of transmitting messages encoded ac","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8514957","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-8514957","citation_suggestion":"Patentable. \"Method and apparatus for spectrally efficient link adaptation using HARQ in OFDMA systems\" (US-8514957). https://patentable.app/patents/US-8514957","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8514957","json":"https://patentable.app/api/llm-context/US-8514957","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:46:59.850Z"}