{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11953585","patent":{"patent_number":"US-11953585","title":"Secure ranging with passive devices","assignee":null,"inventors":[],"filing_date":"2021-10-27T00:00:00.000Z","publication_date":"2024-04-09T00:00:00.000Z","cpc_codes":["G01S","H04W","G01S","G01S","G01S","G01S","H04B","H04L","H04W","H04B","H04L","H04L","H04W"],"num_claims":27,"abstract":"Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE via reflection by one or more passive devices, a first reference signal (RS) that is based at least in part on a shared first key that corresponds to a configuration of the one or more passive devices. The first UE may receive, from the second UE via reflection, a second RS that is based at least in part on the first key. The first UE may generate a second key based at least in part on a measurement of the second RS. The first UE may transmit a positioning reference signal that is based at least in part on the second key and that is associated with a measurement of a range between the first UE and the second UE. Numerous other aspects are described."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secure ranging with passive devices","description":"Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE via reflection by one or more passive de","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11953585","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-11953585","citation_suggestion":"Patentable. \"Secure ranging with passive devices\" (US-11953585). https://patentable.app/patents/US-11953585","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11953585","json":"https://patentable.app/api/llm-context/US-11953585","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:45:57.330Z"}