{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9717098","patent":{"patent_number":"US-9717098","title":"Collision avoidance scheme for wireless communications over unlicensed spectrum","assignee":null,"inventors":[],"filing_date":"2014-05-19T00:00:00.000Z","publication_date":"2017-07-25T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04J","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":53,"abstract":"Methods and apparatuses are described in which an unlicensed spectrum is used for Long Term Evolution (LTE) communications. A first method includes performing clear channel assessment (CCA) to determine availability of an unlicensed spectrum, transmitting a request-to-send (RTS) signal to a set of user equipments (UEs) using the unlicensed spectrum when a determination is made that the unlicensed spectrum is available, and receiving, in the unlicensed spectrum, a common clear-to-send (CTS) signal and an individual CTS signal from one or more of the UEs in response to the RTS signal. A second method includes transmitting an RTS signal in an unlicensed spectrum or a V-RTS signal in a licensed spectrum, addressed to a set of UEs, and transmitting a CTS-to-self signal in the unlicensed spectrum along with the transmission of the V-RTS signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Collision avoidance scheme for wireless communications over unlicensed spectrum","description":"Methods and apparatuses are described in which an unlicensed spectrum is used for Long Term Evolution (LTE) communications. A first method includes performing clear channel assessment (CCA) to determi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9717098","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-9717098","citation_suggestion":"Patentable. \"Collision avoidance scheme for wireless communications over unlicensed spectrum\" (US-9717098). https://patentable.app/patents/US-9717098","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9717098","json":"https://patentable.app/api/llm-context/US-9717098","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:47:45.679Z"}