{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8472506","patent":{"patent_number":"US-8472506","title":"Method and system for codebook design of MIMO pre-coders with finite rate channel state information feedback","assignee":null,"inventors":[],"filing_date":"2011-07-19T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":23,"abstract":"Channel state information in a multiple-input multiple-output (MIMO) pre-coding system is quantized onto a codebook, which comprises one or more unitary matrices, using a cost function. Voronoi regions are computed from the codebook. The codebook may be updated based on the computed Voronoi regions. The channel state information may comprise a matrix V. The cost function f(A) is defined by the following relationship:where A is a matrix of size N by N and aij is element (i,j) of matrix A. Voronoi regions may be generated from the codebook for the unitary matrices. A set of matrices based on the Voronoi regions and the unitary matrices may be generated. Updating the codebook may be achieved by modifying the set of matrices into a new set of unitary matrices, where the new set of unitary matrices become the codebook."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and system for codebook design of MIMO pre-coders with finite rate channel state information feedback","description":"Channel state information in a multiple-input multiple-output (MIMO) pre-coding system is quantized onto a codebook, which comprises one or more unitary matrices, using a cost function. Voronoi region","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8472506","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-8472506","citation_suggestion":"Patentable. \"Method and system for codebook design of MIMO pre-coders with finite rate channel state information feedback\" (US-8472506). https://patentable.app/patents/US-8472506","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8472506","json":"https://patentable.app/api/llm-context/US-8472506","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T02:40:24.691Z"}