{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10505601","patent":{"patent_number":"US-10505601","title":"Method and device for feeding back channel state information in multi-input multi-output system","assignee":null,"inventors":[],"filing_date":"2015-09-24T00:00:00.000Z","publication_date":"2019-12-10T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04L"],"num_claims":20,"abstract":"A method and device for feeding back Channel State Information (CSI) in a multi-input multi-output system are provided. In the method, User Equipment (UE) feeds back CSI comprising codebook index information to an evolved Node B (eNodeB). The codebook index information may include a first type of codebook index set I and a second type of codebook index set J, where a combination of the first type of index set I and the second type of index set J is used for indicating a precoding matrix U, and the precoding matrix U is an Nt×r matrix and is composed of at least Q×r basic vectors having a dimension of Nt/Q. The basic vectors are columns extracted from a matrix B composed of M columns of Nt/Q-dimensional vectors."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and device for feeding back channel state information in multi-input multi-output system","description":"A method and device for feeding back Channel State Information (CSI) in a multi-input multi-output system are provided. In the method, User Equipment (UE) feeds back CSI comprising codebook index info","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10505601","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-10505601","citation_suggestion":"Patentable. \"Method and device for feeding back channel state information in multi-input multi-output system\" (US-10505601). https://patentable.app/patents/US-10505601","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10505601","json":"https://patentable.app/api/llm-context/US-10505601","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:23:38.456Z"}