{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11963220","patent":{"patent_number":"US-11963220","title":"Channel access mechanisms in wireless communication","assignee":null,"inventors":[],"filing_date":"2019-11-07T00:00:00.000Z","publication_date":"2024-04-16T00:00:00.000Z","cpc_codes":["H04W","H04W","H04L","H04W","H04W","H04W","H04W","H04W"],"num_claims":18,"abstract":"Apparatuses, systems, and methods for selecting channel access mechanisms in wireless communications, and particularly in 3GPP NR-U. For example, an appropriate listen-before talk (LBT) channel access category (Cat) may be defined for certain messages, such as certain DL and/or UL control messages and certain RACH messages. For other messages, an appropriate Cat may be signaled by the base station, e.g., in a DCI message or SIB. Mechanisms are provided for the base station to signal to the UE certain channel access profile parameters, such as an appropriate LBT Cat, CAPC, and/or CP extension. Mechanisms are also provided for adjustment of contention window duration."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Channel access mechanisms in wireless communication","description":"Apparatuses, systems, and methods for selecting channel access mechanisms in wireless communications, and particularly in 3GPP NR-U. For example, an appropriate listen-before talk (LBT) channel access","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11963220","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-11963220","citation_suggestion":"Patentable. \"Channel access mechanisms in wireless communication\" (US-11963220). https://patentable.app/patents/US-11963220","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11963220","json":"https://patentable.app/api/llm-context/US-11963220","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:25:43.687Z"}