{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10484212","patent":{"patent_number":"US-10484212","title":"Inter-eNB over-the-air calibration for reciprocity-based coordinated multipoint communications","assignee":null,"inventors":[],"filing_date":"2018-07-20T00:00:00.000Z","publication_date":"2019-11-19T00:00:00.000Z","cpc_codes":["H04L","H04B","H04B","H04B","H04B","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04B"],"num_claims":28,"abstract":"Wireless communications systems and methods related to over-the-air uplink-downlink (UL-DL) reciprocity calibration. A central unit transmits downlink (DL) calibration reference signal (RS) and a calibration request. The central unit receives, in response to the calibration request, a first uplink (UL) calibration RS and a first DL channel estimate associated with a first transmission point (TP) and a first wireless communication device. The central unit transmits a DL coordinated multipoint (CoMP) joint transmission signal according to an uplink-downlink (UL-DL) reciprocity calibration. The UL-DL reciprocity calibration is based on at least a first UL channel estimate based on the first UL calibration RS, the first DL channel estimate, a second UL channel estimate associated with a second TP and the first wireless communication device, and a second DL channel estimate associated with the second TP and the first wireless communication device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Inter-eNB over-the-air calibration for reciprocity-based coordinated multipoint communications","description":"Wireless communications systems and methods related to over-the-air uplink-downlink (UL-DL) reciprocity calibration. A central unit transmits downlink (DL) calibration reference signal (RS) and a cali","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10484212","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-10484212","citation_suggestion":"Patentable. \"Inter-eNB over-the-air calibration for reciprocity-based coordinated multipoint communications\" (US-10484212). https://patentable.app/patents/US-10484212","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10484212","json":"https://patentable.app/api/llm-context/US-10484212","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:24:09.604Z"}