{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11962436","patent":{"patent_number":"US-11962436","title":"User detection technique, and method and apparatus for channel estimation in wireless communication system supporting massive multiple-input multiple-output","assignee":null,"inventors":[],"filing_date":"2021-05-14T00:00:00.000Z","publication_date":"2024-04-16T00:00:00.000Z","cpc_codes":["H04L","H04L","H04B","H04L","H04L","H04L","H04L","H04L"],"num_claims":15,"abstract":"Disclosed are a user detection technique, and a method and apparatus for channel estimation in a wireless communication system supporting massive multiple-input multiple-output. The method comprises the steps of: receiving a superimposed signal including a transmission signal of at least one user equipment (UE) from among a plurality of user equipments, wherein each transmission signal includes a pilot signal of a corresponding user equipment; calculating a sample covariance matrix from the received superimposed signal by using the number of antennas of a base station and a pilot signal matrix of the at least one user equipment; calculating a likelihood function indicating the likelihood probability of the received superimposed signal, on the basis of the number of antennas of the base station and the received superimposed signal; detecting a user index set indicating whether or not the plurality of user equipments have transmitted signals, by using the calculated likelihood function and sample covariance matrix; and performing channel estimation of the at least one user equipment that is transmitting the signal, on the basis of the detected user index set."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"User detection technique, and method and apparatus for channel estimation in wireless communication system supporting massive multiple-input multiple-output","description":"Disclosed are a user detection technique, and a method and apparatus for channel estimation in a wireless communication system supporting massive multiple-input multiple-output. The method comprises t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11962436","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-11962436","citation_suggestion":"Patentable. \"User detection technique, and method and apparatus for channel estimation in wireless communication system supporting massive multiple-input multiple-output\" (US-11962436). https://patentable.app/patents/US-11962436","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11962436","json":"https://patentable.app/api/llm-context/US-11962436","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T13:42:43.130Z"}