{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9674825","patent":{"patent_number":"US-9674825","title":"LTE channel access over unlicensed bands","assignee":null,"inventors":[],"filing_date":"2014-06-27T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W"],"num_claims":28,"abstract":"Methods, systems, and devices are described for wireless communications. In one method, a clear channel assessment (CCA) may be performed at a base station to determine availability of an unlicensed spectrum. A first waveform may be transmitted to a set of user equipments (UEs) over the unlicensed spectrum when available. The first waveform may indicate a first time period and a second time period during which the base station has channel access over the unlicensed spectrum. A second waveform may be received from one or more UEs responsive to the first waveform. Each second waveform may be received over the unlicensed spectrum during the first time period and may indicate that the respective UE has channel access over the unlicensed spectrum to receive data from the base station during the second time period."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"LTE channel access over unlicensed bands","description":"Methods, systems, and devices are described for wireless communications. In one method, a clear channel assessment (CCA) may be performed at a base station to determine availability of an unlicensed s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9674825","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-9674825","citation_suggestion":"Patentable. \"LTE channel access over unlicensed bands\" (US-9674825). https://patentable.app/patents/US-9674825","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9674825","json":"https://patentable.app/api/llm-context/US-9674825","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:32:03.991Z"}