{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9838097","patent":{"patent_number":"US-9838097","title":"Method for reporting channel state information, user equipment, and base station","assignee":null,"inventors":[],"filing_date":"2017-02-22T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B"],"num_claims":28,"abstract":"Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of three matrices being w1, Z, and w2, that is, w=w1zw2, where both w1 and Z are block diagonal matrices, w1=a formula (I), Z=a formula (II), each of w1 and Z includes at least one block matrix, that is, NB≧1, and each column of each block matrix zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for reporting channel state information, user equipment, and base station","description":"Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9838097","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-9838097","citation_suggestion":"Patentable. \"Method for reporting channel state information, user equipment, and base station\" (US-9838097). https://patentable.app/patents/US-9838097","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9838097","json":"https://patentable.app/api/llm-context/US-9838097","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:31:15.920Z"}