{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9729216","patent":{"patent_number":"US-9729216","title":"Multiple transmitter codebook methods and devices","assignee":null,"inventors":[],"filing_date":"2014-03-07T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["H04B","H04B","H04L"],"num_claims":18,"abstract":"Various communication systems may benefit from codebook methods and devices for multiple transmitters. For example, a codebook for four transmitters (4Tx) may provide further enhancement for downlink multiple-input multiple-output (DL-MIMO) systems. A method can include weighting a signal for transmission based on a precoder selected according to a feedback from a codebook, such as codebooks A, B, C, D, or E, described herein. The method can also include sending the weighted signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multiple transmitter codebook methods and devices","description":"Various communication systems may benefit from codebook methods and devices for multiple transmitters. For example, a codebook for four transmitters (4Tx) may provide further enhancement for downlink ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9729216","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-9729216","citation_suggestion":"Patentable. \"Multiple transmitter codebook methods and devices\" (US-9729216). https://patentable.app/patents/US-9729216","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9729216","json":"https://patentable.app/api/llm-context/US-9729216","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:15:54.768Z"}