{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10498405","patent":{"patent_number":"US-10498405","title":"Codebook restriction","assignee":null,"inventors":[],"filing_date":"2014-10-29T00:00:00.000Z","publication_date":"2019-12-03T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B"],"num_claims":37,"abstract":"Systems and methods for codebook restriction for closed-loop codebook-based precoding in a Multiple-Input-Multiple-Output (MIMO) wireless communications system based on antenna correlation are disclosed. In some embodiments, a method of operation of a wireless device to provide feedback for a closed-loop codebook-based precoding system is provided. The method comprises determining a codebook restriction based on an antenna correlation for a MIMO channel between a network node and the wireless device. The antenna correlation is transmit antenna correlation, receive antenna correlation, or both transmit and receive antenna correlation. The codebook restriction is a restriction that reduces a full codebook of the wireless device to a reduced codebook. The method of operation of the wireless device further comprises generating a feedback report using the reduced codebook and transmitting the feedback report to the network node. By generating the feedback report using the reduced codebook, complexity is substantially reduced."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Codebook restriction","description":"Systems and methods for codebook restriction for closed-loop codebook-based precoding in a Multiple-Input-Multiple-Output (MIMO) wireless communications system based on antenna correlation are disclos","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10498405","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-10498405","citation_suggestion":"Patentable. \"Codebook restriction\" (US-10498405). https://patentable.app/patents/US-10498405","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10498405","json":"https://patentable.app/api/llm-context/US-10498405","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:20:26.933Z"}