{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9614707","patent":{"patent_number":"US-9614707","title":"PHY frame formats in a system with more than four space-time streams","assignee":null,"inventors":[],"filing_date":"2016-01-25T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L","H04W","H04W","H04W","H04W","H04L","H04L","H04L"],"num_claims":17,"abstract":"In generating a data unit for transmission via a communication channel, a preamble of the data unit is generated, including i) generating a set of training fields, and ii) mapping each training field in the set of training fields to a plurality of space-time streams. When the set of training fields consist of four training fields, each training field in the set of training fields is mapped to four space-time streams according to a first space-time stream mapping matrix. When the set of training fields consists of six training fields, each training field in the set of training fields is mapped to six space-time streams according to a second space-time stream mapping matrix, wherein the first space-time stream mapping matrix is not a submatrix of the second space-time stream mapping matrix. A data portion of the data unit is generated so that a receiver device can receive the data portion via a corresponding number of space-time streams using channel information derived from the set of training fields."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"PHY frame formats in a system with more than four space-time streams","description":"In generating a data unit for transmission via a communication channel, a preamble of the data unit is generated, including i) generating a set of training fields, and ii) mapping each training field ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9614707","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-9614707","citation_suggestion":"Patentable. \"PHY frame formats in a system with more than four space-time streams\" (US-9614707). https://patentable.app/patents/US-9614707","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9614707","json":"https://patentable.app/api/llm-context/US-9614707","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:24:14.172Z"}