{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621239","patent":{"patent_number":"US-9621239","title":"System and method for nonlinear MU-MIMO downlink channel precoding with arbitrary precoder","assignee":null,"inventors":[],"filing_date":"2013-03-28T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H04B","H04L","H04B"],"num_claims":25,"abstract":"Method and apparatus are provided for transmission of data. A precoder is selected, and a feedforward filter is derived in accordance with the precoder. In some embodiments, the precoder is an arbitrary effective precoder. Data prepared using the precoder and the feedforward filter can then be transmitted."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for nonlinear MU-MIMO downlink channel precoding with arbitrary precoder","description":"Method and apparatus are provided for transmission of data. A precoder is selected, and a feedforward filter is derived in accordance with the precoder. In some embodiments, the precoder is an arbitra","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621239","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-9621239","citation_suggestion":"Patentable. \"System and method for nonlinear MU-MIMO downlink channel precoding with arbitrary precoder\" (US-9621239). https://patentable.app/patents/US-9621239","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621239","json":"https://patentable.app/api/llm-context/US-9621239","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T18:31:13.915Z"}