{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9843425","patent":{"patent_number":"US-9843425","title":"Method and apparatus for transmitting channel state information-reference signals in wireless communication system","assignee":null,"inventors":[],"filing_date":"2016-11-01T00:00:00.000Z","publication_date":"2017-12-12T00:00:00.000Z","cpc_codes":["H04L","H04B","H04B","H04L","H04L","H04L","H04L"],"num_claims":9,"abstract":"A method of transmitting channel state information (CSI)-reference signals (RS) at a base station in a wireless communication system includes generating a reference signal sequence, and mapping the reference signal sequence to resource elements (REs) included in one or more patterns for 8-port CSI-RS transmission among five patterns for 8-port CSI-RS transmission located in a first region of a PRB pair and three patterns for 8-port CSI-RS transmission located in a second region of the PRB pair. A maximum of two OFDM (orthogonal frequency division multiplexing) symbols is used for a physical downlink control channel in a subframe including the PRB pair."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for transmitting channel state information-reference signals in wireless communication system","description":"A method of transmitting channel state information (CSI)-reference signals (RS) at a base station in a wireless communication system includes generating a reference signal sequence, and mapping the re","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9843425","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-9843425","citation_suggestion":"Patentable. \"Method and apparatus for transmitting channel state information-reference signals in wireless communication system\" (US-9843425). https://patentable.app/patents/US-9843425","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9843425","json":"https://patentable.app/api/llm-context/US-9843425","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:36:51.583Z"}