{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9705576","patent":{"patent_number":"US-9705576","title":"MIMO wireless communication system","assignee":null,"inventors":[],"filing_date":"2015-04-08T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["H04B","H04B","H04L","H04L","H04L","H04L","H04W"],"num_claims":15,"abstract":"In a LTE-based wireless communication system, a first user (UEB) in a first cell (Cell A) may experience significant interference from downlink transmissions in a second cell (Cell B). Interference can be reduced by selecting a precoder for downlink transmission to a second user (UEA) in the first cell which will result in reduced interference to the first user (UEB) after the first user (UEB) is handed-over to the second cell. The uplink/downlink channel reciprocity in TDD systems and the new transmission mode TM9 in LTE Release 10 are exploited to obtain channel information and determine precoding. After handover to the second cell, a resource allocation (RBB) to the first user (UEB) is notified to the first cell. In the first cell, the second user (UEA) receives the same resource allocation and a precoder selected to reduce interference to the first user."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"MIMO wireless communication system","description":"In a LTE-based wireless communication system, a first user (UEB) in a first cell (Cell A) may experience significant interference from downlink transmissions in a second cell (Cell B). Interference ca","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9705576","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-9705576","citation_suggestion":"Patentable. \"MIMO wireless communication system\" (US-9705576). https://patentable.app/patents/US-9705576","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9705576","json":"https://patentable.app/api/llm-context/US-9705576","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:18:15.224Z"}