{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11265928","patent":{"patent_number":"US-11265928","title":"Method for adjusting contention window size on basis of HARQ-ACK information in wireless access system supporting unlicensed band, and device for supporting same","assignee":null,"inventors":[],"filing_date":"2020-04-30T00:00:00.000Z","publication_date":"2022-03-01T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04W","H04L","H04L"],"num_claims":10,"abstract":"The present invention relates to a wireless access system that supports an unlicensed band, and provides various methods for adjusting a contention window size, methods for determining the time when the adjusted contention window size is applied, methods for distinguishing between a collision and a channel error, and devices for supporting the same. As an embodiment of the present invention, a method for adjusting a contention window size in a wireless access system supporting an unlicensed band may comprise the steps of: performing a channel access procedure; when it is determined through the performed channel access procedure that a serving cell (Scell) in the unlicensed band is in an idle state, transmitting a transmission burst including a downlink signal through the unlicensed band; receiving hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmission burst; and adjusting the CWS using the number of DTX states in the HARQ-ACK information when the transmission burst is scheduled in a self-carrier scheduling scheme."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for adjusting contention window size on basis of HARQ-ACK information in wireless access system supporting unlicensed band, and device for supporting same","description":"The present invention relates to a wireless access system that supports an unlicensed band, and provides various methods for adjusting a contention window size, methods for determining the time when t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11265928","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-11265928","citation_suggestion":"Patentable. \"Method for adjusting contention window size on basis of HARQ-ACK information in wireless access system supporting unlicensed band, and device for supporting same\" (US-11265928). https://patentable.app/patents/US-11265928","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11265928","json":"https://patentable.app/api/llm-context/US-11265928","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:58:47.526Z"}