{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9762283","patent":{"patent_number":"US-9762283","title":"Method and apparatus for antenna calibration","assignee":null,"inventors":[],"filing_date":"2012-09-13T00:00:00.000Z","publication_date":"2017-09-12T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B","H04B"],"num_claims":12,"abstract":"Method and apparatus for antenna calibration have been disclosed. A radio unit (510) is provided. The radio unit (510) may comprise: a plurality of transmit/receive (TX/RX) paths; a plurality of radio frequency (RF) ports (512) connected with the plurality of TX/RX paths; and a coupling unit (516), coupled with the plurality of TX/RX paths and configured to inject an uplink (UL) calibration signal (550) into at least one of the plurality of TX/RX paths and extract a downlink (DL) calibration signal (540) from at least one of the plurality of TX/RX paths. A normal TX/RX path may be reused both for antenna calibration and antenna supervision. Thus, a low cost hardware solution for antenna calibration is provided. An AIR base station (500) comprising such radio unit (510) is also provided."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for antenna calibration","description":"Method and apparatus for antenna calibration have been disclosed. A radio unit (510) is provided. The radio unit (510) may comprise: a plurality of transmit/receive (TX/RX) paths; a plurality of radio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9762283","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-9762283","citation_suggestion":"Patentable. \"Method and apparatus for antenna calibration\" (US-9762283). https://patentable.app/patents/US-9762283","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9762283","json":"https://patentable.app/api/llm-context/US-9762283","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:18:21.615Z"}