{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9806781","patent":{"patent_number":"US-9806781","title":"Codebook design and structure for advanced wireless communication systems","assignee":null,"inventors":[],"filing_date":"2016-01-13T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B"],"num_claims":20,"abstract":"A base station capable of communicating with a user equipment (UE) includes a transceiver configured to transmit downlink signals containing first and second antenna numbers, first and second oversampling factors indicating respective oversampling rates in first and second dimensions for each beam group, first and second quantities of beams indicating respective quantities of beams in the first and second dimensions for each beam group, and first and second beam skip numbers indicating respective differences of leading beam indices of two adjacent beam groups in the first and second dimensions, receive uplink signals containing a plurality of precoding matrix indicators (PMIs) from the UE. Other embodiments including methods and UEs and methods are disclosed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Codebook design and structure for advanced wireless communication systems","description":"A base station capable of communicating with a user equipment (UE) includes a transceiver configured to transmit downlink signals containing first and second antenna numbers, first and second oversamp","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9806781","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-9806781","citation_suggestion":"Patentable. \"Codebook design and structure for advanced wireless communication systems\" (US-9806781). https://patentable.app/patents/US-9806781","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9806781","json":"https://patentable.app/api/llm-context/US-9806781","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:27:01.537Z"}