{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11290169","patent":{"patent_number":"US-11290169","title":"Methods, systems and units of a distributed base station system for handling of downlink communication","assignee":null,"inventors":[],"filing_date":"2017-11-20T00:00:00.000Z","publication_date":"2022-03-29T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B","H04W"],"num_claims":18,"abstract":"A method performed by a RRU of a distributed base station system, which further comprising a BBU, connected to the RRU. The RRU is arranged to wirelessly communicate with at least one UE. The method comprises determining a downlink channel estimate from received uplink signals and determining a first part of precoding coefficients to be used for precoding signals to be sent downlink to the at least one UE based on the determined downlink channel estimate. The method further comprises receiving a second part of the precoding coefficients from the BBU, precoding downlink signals of data received from the BBU using the first and the second part of the precoding coefficients and sending the precoded downlink signals to the at least one UE via the plurality of antennas."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods, systems and units of a distributed base station system for handling of downlink communication","description":"A method performed by a RRU of a distributed base station system, which further comprising a BBU, connected to the RRU. The RRU is arranged to wirelessly communicate with at least one UE. The method c","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11290169","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-11290169","citation_suggestion":"Patentable. \"Methods, systems and units of a distributed base station system for handling of downlink communication\" (US-11290169). https://patentable.app/patents/US-11290169","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11290169","json":"https://patentable.app/api/llm-context/US-11290169","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:18:24.758Z"}