{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10524139","patent":{"patent_number":"US-10524139","title":"Methods and apparatuses for signaling with geometric constellations in a Raleigh fading channel","assignee":null,"inventors":[],"filing_date":"2017-08-21T00:00:00.000Z","publication_date":"2019-12-31T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04L","H04L","H04W","H04W"],"num_claims":24,"abstract":"Communication systems are described that use signal constellations which have unequally spaced (i.e. “geometrically spaced,” or “non-uniform”) points. In many embodiments, the transmitters and receivers use specific non-uniform quadrature amplitude modulation (NU-QAM) constellations. In a variety of embodiments, NU-QAM constellations are capacity optimized using a bit-interleaved coded modulation (BICM, also referred to as “parallel decode”) capacity measure. In a number of embodiments, the transmitters and receivers are described that use specific NU-QAM constellations that provide gains in BICM capacity relative to constellations that maximize the minimum distance between constellation points."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatuses for signaling with geometric constellations in a Raleigh fading channel","description":"Communication systems are described that use signal constellations which have unequally spaced (i.e. “geometrically spaced,” or “non-uniform”) points. In many embodiments, the transmitters and receive","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10524139","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-10524139","citation_suggestion":"Patentable. \"Methods and apparatuses for signaling with geometric constellations in a Raleigh fading channel\" (US-10524139). https://patentable.app/patents/US-10524139","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10524139","json":"https://patentable.app/api/llm-context/US-10524139","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:24:20.274Z"}