{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11973549","patent":{"patent_number":"US-11973549","title":"Receiver, transmitter, system and method employing space-delay precoding","assignee":null,"inventors":[],"filing_date":"2021-01-27T00:00:00.000Z","publication_date":"2024-04-30T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B","H04B"],"num_claims":19,"abstract":"A receiver processes a radio signal received via a radio channel from a transmitter employing a plurality of antenna ports, determines complex precoder coefficients and delays of one or more space-delay precoders for one or more transmission layers and antenna ports at the transmitter so as to achieve a predefined property for a communication over the radio channel, and feeds back, explicitly or implicitly, delays and the complex precoder. The space-delay precoder has a dual-stage structure having a spatial codebook matrix including spatial beamforming vectors, a frequency-domain codebook matrix, and a combining element per layer for complex scaling or combining one or more of the vectors selected from the spatial and/or frequency-domain codebook matrices. The frequency-domain codebook matrix is defined by a sub-matrix of a DFT matrix, which the sub-matrix of the DFT matrix is associated with a range of delay values."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Receiver, transmitter, system and method employing space-delay precoding","description":"A receiver processes a radio signal received via a radio channel from a transmitter employing a plurality of antenna ports, determines complex precoder coefficients and delays of one or more space-del","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11973549","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-11973549","citation_suggestion":"Patentable. \"Receiver, transmitter, system and method employing space-delay precoding\" (US-11973549). https://patentable.app/patents/US-11973549","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11973549","json":"https://patentable.app/api/llm-context/US-11973549","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:23:34.902Z"}