{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10541773","patent":{"patent_number":"US-10541773","title":"Methods and systems for OFDM using code division multiplexing","assignee":null,"inventors":[],"filing_date":"2019-04-03T00:00:00.000Z","publication_date":"2020-01-21T00:00:00.000Z","cpc_codes":["H04L","H04B","H04B","H04B","H04J","H04J","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04J","H04L","H04L","H04L"],"num_claims":20,"abstract":"In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and systems for OFDM using code division multiplexing","description":"In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol duratio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10541773","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-10541773","citation_suggestion":"Patentable. \"Methods and systems for OFDM using code division multiplexing\" (US-10541773). https://patentable.app/patents/US-10541773","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10541773","json":"https://patentable.app/api/llm-context/US-10541773","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:18:36.791Z"}