{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11483781","patent":{"patent_number":"US-11483781","title":"Channel usage indication and synchronization for LTE operation in unlicensed bands","assignee":null,"inventors":[],"filing_date":"2019-04-17T00:00:00.000Z","publication_date":"2022-10-25T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04W","H04W","H04W","H04W"],"num_claims":18,"abstract":"Systems, methods, and instrumentalities are disclosed for LTE operation in an unlicensed spectrum (LTE-U). A wireless transmit/receive unit (WTRU) may establish a connection with a first cell on a licensed frequency band. The WTRU may receive a first downlink transmission from a second cell operating on an unlicensed frequency band. The WTRU may determine that a synchronization signal transmission from a third cell operating on the unlicensed frequency band is transmitted using one or more resource elements. The WTRU may perform frequency and/or timing estimation based on the synchronization signal transmission. The WTRU may perform rate matching around the one or more resource elements that correspond to the synchronization signal transmission. The WTRU may perform rate matching around the one or more resource elements by de-mapping symbols of the downlink transmission."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Channel usage indication and synchronization for LTE operation in unlicensed bands","description":"Systems, methods, and instrumentalities are disclosed for LTE operation in an unlicensed spectrum (LTE-U). A wireless transmit/receive unit (WTRU) may establish a connection with a first cell on a lic","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11483781","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-11483781","citation_suggestion":"Patentable. \"Channel usage indication and synchronization for LTE operation in unlicensed bands\" (US-11483781). https://patentable.app/patents/US-11483781","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11483781","json":"https://patentable.app/api/llm-context/US-11483781","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:42:01.237Z"}