{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9820290","patent":{"patent_number":"US-9820290","title":"Virtual antenna mapping method and apparatus for feedback of virtual antenna mapping information in MIMO system","assignee":null,"inventors":[],"filing_date":"2015-03-03T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04W","H04B","H04B","H04B","H04L","H04L","H04W"],"num_claims":26,"abstract":"A Virtual Antenna Mapping (VAM) method of a base station and a transmission apparatus equipped with M physical antennas and Q Transceiver Units (TXRUs) are provided. The method includes transmitting Reference Signals (RSs) arranged differently according to respective VAM patterns to a terminal in a transmission mode supporting N logical antennas; receiving a feedback including information regarding a VAM pattern selected as a result of channel measurement with respect to the RSs transmitted according to the VAM pattern from the terminal; and transmitting a signal to the terminal through the M physical antennas by applying the selected VAM pattern, wherein the selected VAM pattern maps N data streams corresponding to the N logical antennas to the M physical antennas through the Q TXRUs."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Virtual antenna mapping method and apparatus for feedback of virtual antenna mapping information in MIMO system","description":"A Virtual Antenna Mapping (VAM) method of a base station and a transmission apparatus equipped with M physical antennas and Q Transceiver Units (TXRUs) are provided. The method includes transmitting R","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9820290","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-9820290","citation_suggestion":"Patentable. \"Virtual antenna mapping method and apparatus for feedback of virtual antenna mapping information in MIMO system\" (US-9820290). https://patentable.app/patents/US-9820290","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9820290","json":"https://patentable.app/api/llm-context/US-9820290","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:21:18.848Z"}