{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9685997","patent":{"patent_number":"US-9685997","title":"Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems","assignee":null,"inventors":[],"filing_date":"2012-05-18T00:00:00.000Z","publication_date":"2017-06-20T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B"],"num_claims":36,"abstract":"Systems and methods are described for enhancing the channel spatial diversity in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”), by exploiting channel selectivity indicators. The proposed methods are: i) antenna selection; ii) user selection; iii) transmit power balancing. All three methods, or any combination of those, are shown to provide significant performance gains in DIDO systems in practical propagation scenarios."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems","description":"Systems and methods are described for enhancing the channel spatial diversity in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”), by exploiting channel selectivity indica","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9685997","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-9685997","citation_suggestion":"Patentable. \"Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems\" (US-9685997). https://patentable.app/patents/US-9685997","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9685997","json":"https://patentable.app/api/llm-context/US-9685997","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:58:41.771Z"}