{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9755795","patent":{"patent_number":"US-9755795","title":"System and method for WLAN OFDMA design of subcarrier groups and frame format","assignee":null,"inventors":[],"filing_date":"2014-07-07T00:00:00.000Z","publication_date":"2017-09-05T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04W","H04W","H04L","H04L","H04L","H04L","H04W"],"num_claims":28,"abstract":"Embodiments are provided for WLAN Orthogonal Frequency Division Multiple Access (OFDMA) design of subcarrier groups and corresponding frame format. An embodiment method includes grouping a plurality of subcarriers for OFDMA transmissions into a plurality of subcarrier groups in accordance with a pre-defined grouping structure for subcarriers. The method further includes allocating the subcarrier groups to a plurality of corresponding users, and signaling, to the users, a map of the subcarrier groups to the corresponding users. According to the pre-defined grouping structure, each one of the subcarrier groups includes a plurality of consecutive subcarriers, a plurality of non-consecutive subcarriers, or a combination of consecutive and non-consecutive subcarriers according to a deterministic structure. The map is signaled using an OFDMA PPDU comprising a legacy preamble portion configured to silence legacy users that do not use OFDMA communications, an OFDMA preamble portion indicating the map, and a data portion."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for WLAN OFDMA design of subcarrier groups and frame format","description":"Embodiments are provided for WLAN Orthogonal Frequency Division Multiple Access (OFDMA) design of subcarrier groups and corresponding frame format. An embodiment method includes grouping a plurality o","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9755795","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-9755795","citation_suggestion":"Patentable. \"System and method for WLAN OFDMA design of subcarrier groups and frame format\" (US-9755795). https://patentable.app/patents/US-9755795","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9755795","json":"https://patentable.app/api/llm-context/US-9755795","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:39:17.982Z"}