{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9794821","patent":{"patent_number":"US-9794821","title":"Channel reservation for operation in an unlicensed spectrum","assignee":null,"inventors":[],"filing_date":"2014-11-17T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":23,"abstract":"Embodiments described herein relate generally to a communication between a user equipment (“UE”) and an evolved Node Bs (“eNBs”) in a plurality of frequency bands. An eNB may transmit cross-carrier, cross-subframe scheduling information to a UE in a licensed frequency band. In response reception of the scheduling information, the UE may sense a wireless transmission medium to determine if the medium is idle. If the medium is idle, the UE may generate and transmit a request to reserve the medium in the unlicensed frequency band (e.g., a Clear-to-Send message). The eNB may transmit downlink data to the UE in the unlicensed frequency band. Other embodiments may be described and/or claimed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Channel reservation for operation in an unlicensed spectrum","description":"Embodiments described herein relate generally to a communication between a user equipment (“UE”) and an evolved Node Bs (“eNBs”) in a plurality of frequency bands. An eNB may transmit cross-carrier, c","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9794821","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-9794821","citation_suggestion":"Patentable. \"Channel reservation for operation in an unlicensed spectrum\" (US-9794821). https://patentable.app/patents/US-9794821","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9794821","json":"https://patentable.app/api/llm-context/US-9794821","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:17:26.073Z"}