{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8532647","patent":{"patent_number":"US-8532647","title":"Method and apparatus for determining downlink beamforming vectors in hierarchical cell communication system","assignee":null,"inventors":[],"filing_date":"2011-09-19T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04W","H04W","H04W","H04W"],"num_claims":10,"abstract":"Provided is a method and apparatus for determining a downlink beamforming vector in a hierarchical cell communication system. Small base stations may determine transmit beamforming vectors of the small base stations so that interference from the small base stations may be reduced in a macro terminal. A macro terminal and small terminals may determine receive beamforming vectors based on the transmit beamforming vectors of the small base stations. A macro base station may determine a transmit beamforming vector based on effective channels to terminals using the receive beamforming vectors of the terminals."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for determining downlink beamforming vectors in hierarchical cell communication system","description":"Provided is a method and apparatus for determining a downlink beamforming vector in a hierarchical cell communication system. Small base stations may determine transmit beamforming vectors of the smal","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8532647","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-8532647","citation_suggestion":"Patentable. \"Method and apparatus for determining downlink beamforming vectors in hierarchical cell communication system\" (US-8532647). https://patentable.app/patents/US-8532647","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8532647","json":"https://patentable.app/api/llm-context/US-8532647","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:09:40.571Z"}