{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10530621","patent":{"patent_number":"US-10530621","title":"Transmission apparatus and transmission method for transmitting a control signal in a wireless communication system","assignee":null,"inventors":[],"filing_date":"2016-12-21T00:00:00.000Z","publication_date":"2020-01-07T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L","H04L","H04L","H04L","H04W"],"num_claims":7,"abstract":"Provided is a transmission apparatus including a transmission signal generator which, in operation, generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field. The non-legacy preamble comprises a first signal field and a second signal field. The first signal field comprises a second signal field compression subfield and a number of second signal field symbols subfield. The second signal field symbols subfield indicates a number of second signal field symbols when the second signal field compression subfield indicates that a full bandwidth containing first and second frequency subbands is not allocated for multi-user (MU) MIMO transmission. The number of second signal field symbols indicates a number of MU MIMO users when the second signal field compression subfield indicates that the full bandwidth is allocated for MU MIMO transmission. The transmission apparatus includes a transmitter which, in operation, transmits the generated transmission signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Transmission apparatus and transmission method for transmitting a control signal in a wireless communication system","description":"Provided is a transmission apparatus including a transmission signal generator which, in operation, generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data fi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10530621","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-10530621","citation_suggestion":"Patentable. \"Transmission apparatus and transmission method for transmitting a control signal in a wireless communication system\" (US-10530621). https://patentable.app/patents/US-10530621","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10530621","json":"https://patentable.app/api/llm-context/US-10530621","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:52:57.398Z"}