{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9819460","patent":{"patent_number":"US-9819460","title":"Downlink physical layer protocol data unit format in a high efficiency wireless LAN","assignee":null,"inventors":[],"filing_date":"2015-07-02T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L","H04L","H04L","H04W","H04W","H04L","H04L","H04L","H04W","H04W"],"num_claims":20,"abstract":"The present invention provides a new downlink frame format to support MU-MIMO and OFDMA, and methods, apparatuses, etc. therefor. In an aspect of the present invention, a method for transmitting data to a plurality of STAs by an AP in a WLAN may include generating a HE-LTF field for the plurality of STAs, and transmitting a PPDU frame to the plurality of STAs, the PPDU frame including the HE-LTF field and data for the plurality of STAs. The data for the plurality of STAs may be transmitted to different STA on each of a plurality of subchannels, and a starting point of the HE-LTF field may be same across the plurality of STAs and an end point of the HE-LTF field may be same across the plurality of STAs."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Downlink physical layer protocol data unit format in a high efficiency wireless LAN","description":"The present invention provides a new downlink frame format to support MU-MIMO and OFDMA, and methods, apparatuses, etc. therefor. In an aspect of the present invention, a method for transmitting data ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9819460","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-9819460","citation_suggestion":"Patentable. \"Downlink physical layer protocol data unit format in a high efficiency wireless LAN\" (US-9819460). https://patentable.app/patents/US-9819460","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9819460","json":"https://patentable.app/api/llm-context/US-9819460","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:05:47.676Z"}