{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9801209","patent":{"patent_number":"US-9801209","title":"Method for transmitting random access preamble, and wireless device","assignee":null,"inventors":[],"filing_date":"2013-05-09T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["H04L","H04W","H04W","H04L","H04W","H04W"],"num_claims":10,"abstract":"Provided is a method and an apparatus for transmitting a random access preamble in a time division duplex (TDD)-based wireless communication system. A wireless device selects an UL subframe in which a random access preamble is to be transmitted in a first serving cell. If the next subframe following the selected UL subframe is a DL subframe and the length of the random access preamble exceeds the UL subframe, the random access preamble may be generated such that the length of the random access preamble may not exceed the UL subframe."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for transmitting random access preamble, and wireless device","description":"Provided is a method and an apparatus for transmitting a random access preamble in a time division duplex (TDD)-based wireless communication system. A wireless device selects an UL subframe in which a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9801209","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-9801209","citation_suggestion":"Patentable. \"Method for transmitting random access preamble, and wireless device\" (US-9801209). https://patentable.app/patents/US-9801209","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9801209","json":"https://patentable.app/api/llm-context/US-9801209","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:20:01.965Z"}