{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9742543","patent":{"patent_number":"US-9742543","title":"Acknowledgment mechanisms for OFDMA operation","assignee":null,"inventors":[],"filing_date":"2015-07-13T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04W"],"num_claims":16,"abstract":"In an example of wireless communications based on orthogonal frequency-division multiple access (OFDMA), an access point may send a downlink frame to multiple stations. In response, some or all of the stations may transmit their respective uplink frames simultaneously after a predetermined time period. The uplink frames from the stations may be aggregated or multiplexed to form a final uplink frame that is received by the access point. Each of the uplink frames from the stations may include at least a legacy header and an acknowledgment frame. While a legacy header occupies the entire channel bandwidth of its uplink frame, an acknowledgment frame occupies a sub-band assigned to its station, where a sub-band is a portion of the channel bandwidth. Other methods, apparatus, and computer-readable media are also disclosed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Acknowledgment mechanisms for OFDMA operation","description":"In an example of wireless communications based on orthogonal frequency-division multiple access (OFDMA), an access point may send a downlink frame to multiple stations. In response, some or all of the","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9742543","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-9742543","citation_suggestion":"Patentable. \"Acknowledgment mechanisms for OFDMA operation\" (US-9742543). https://patentable.app/patents/US-9742543","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9742543","json":"https://patentable.app/api/llm-context/US-9742543","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:39:55.245Z"}