{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9712223","patent":{"patent_number":"US-9712223","title":"Method of transmitting frames, and corresponding stations and computer program","assignee":null,"inventors":[],"filing_date":"2012-10-29T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":8,"abstract":"A frame transmission method is provided for use in a multiuser MIMO system having a transmitter with a plurality of antennas and receivers that are respectively associated with users. The method includes: constructing a sounding frame in which a first portion has at least one symbol for synchronizing destination receivers and a second portion has at least as many pre-coded pilot symbols as there are destination receivers; transmitting the sounding frame in a broadcast mode for its first portion and in a directional mode for its second portion to each of the destination receivers; and constructing a respective data frame for sending to each of the destination receivers by taking account of feedback information coming from the destination receivers and, for each destination receiver, coding interference between destination receivers."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of transmitting frames, and corresponding stations and computer program","description":"A frame transmission method is provided for use in a multiuser MIMO system having a transmitter with a plurality of antennas and receivers that are respectively associated with users. The method inclu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9712223","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-9712223","citation_suggestion":"Patentable. \"Method of transmitting frames, and corresponding stations and computer program\" (US-9712223). https://patentable.app/patents/US-9712223","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9712223","json":"https://patentable.app/api/llm-context/US-9712223","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:18:48.083Z"}