{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9660766","patent":{"patent_number":"US-9660766","title":"Robust symbol transmission and reception method using hierarchical modulation in wireless access system","assignee":null,"inventors":[],"filing_date":"2014-07-18T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H04L","H04L","H04W","H04B","H04B"],"num_claims":8,"abstract":"The present invention provides hierarchical modulation methods for robust symbol transmission and reception in a wireless access system, and devices supporting same. A method for transmitting a hierarchically modulated (HM) symbol in a wireless access system, according to an embodiment of the present invention, comprises the steps of: generating a first symbol; generating a second symbol; generating an HM symbol by combining the first symbol and the second symbol; and transmitting the HM symbol, wherein the first symbol can be generated by means of a spatial multiplexing (SM) technique, a beam-forming technique, or a space-time coding technique and the second symbol can be generated by means of a spatial multiplexing (SM) technique, a beam-forming technique, or a space-time coding technique."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Robust symbol transmission and reception method using hierarchical modulation in wireless access system","description":"The present invention provides hierarchical modulation methods for robust symbol transmission and reception in a wireless access system, and devices supporting same. A method for transmitting a hierar","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9660766","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-9660766","citation_suggestion":"Patentable. \"Robust symbol transmission and reception method using hierarchical modulation in wireless access system\" (US-9660766). https://patentable.app/patents/US-9660766","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9660766","json":"https://patentable.app/api/llm-context/US-9660766","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:30:15.151Z"}