{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10516449","patent":{"patent_number":"US-10516449","title":"Multi-user MIMO-OFDM system","assignee":null,"inventors":[],"filing_date":"2018-01-12T00:00:00.000Z","publication_date":"2019-12-24T00:00:00.000Z","cpc_codes":["H04B","H04B","H04L","H04L","H04L","H04B","H04L","H04L","H04L"],"num_claims":22,"abstract":"The present invention discloses various improvements to multi-user multiple-input multiple-output orthogonal frequency division multiplexing (MU-MIMO-OFDM) wireless communication systems. In one aspect there is disclosed an efficient and accurate channel estimation method and system using locally consecutive pilot sub-carriers. In another aspect there is disclosed an efficient channel feedback method and system by applying a discrete cosine transform to channel coefficients. In another aspect there is disclosed an efficient method and system to calculate a part of the channel inverse by interpolation. These aspects can be used in combination to improve the MU-MIMO-OFDM system."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multi-user MIMO-OFDM system","description":"The present invention discloses various improvements to multi-user multiple-input multiple-output orthogonal frequency division multiplexing (MU-MIMO-OFDM) wireless communication systems. In one aspec","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10516449","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-10516449","citation_suggestion":"Patentable. \"Multi-user MIMO-OFDM system\" (US-10516449). https://patentable.app/patents/US-10516449","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10516449","json":"https://patentable.app/api/llm-context/US-10516449","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:22:50.986Z"}