{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11272540","patent":{"patent_number":"US-11272540","title":"Channel access and uplink switching","assignee":null,"inventors":[],"filing_date":"2019-08-09T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W","H04W","H04W"],"num_claims":20,"abstract":"A wireless device receives configuration parameters of a first uplink carrier and a second uplink carrier of an unlicensed cell. A switch is made from the first uplink carrier to the second uplink carrier. A first contention window size determining based on the switch. Based on the first contention window size, a listen before talk procedure is performed for transmission of a transport block in one or more subbands of the second uplink carrier. A transport block is transmitted based on the listen before talk procedure indicating a clear channel."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Channel access and uplink switching","description":"A wireless device receives configuration parameters of a first uplink carrier and a second uplink carrier of an unlicensed cell. A switch is made from the first uplink carrier to the second uplink car","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11272540","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-11272540","citation_suggestion":"Patentable. \"Channel access and uplink switching\" (US-11272540). https://patentable.app/patents/US-11272540","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11272540","json":"https://patentable.app/api/llm-context/US-11272540","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:20:50.342Z"}