{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9615343","patent":{"patent_number":"US-9615343","title":"Method for obtaining synchronization for device-to-device communication between user equipment inside coverage area and user equipment outside of coverage area in wireless communication system, and apparatus for same","assignee":null,"inventors":[],"filing_date":"2013-12-05T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["H04W","H04L","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":6,"abstract":"Disclosed in the present invention is a method for a first user equipment inside a coverage area of a base station conducting device-to-device communication with a second user equipment outside the coverage area in a wireless communication system. More specifically, the method comprises the steps of: dividing into a plurality of candidate sections a specific time unit for the device-to-device communication; and transmitting a reference signal for obtaining synchronization to the second user equipment from one section from among the candidate sections, when a random number that is generated is bigger than or equal to a critical value corresponding to the inside of the coverage area, wherein the critical value corresponding to the inside of the coverage area is smaller than a critical value corresponding to the outside of the coverage area."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for obtaining synchronization for device-to-device communication between user equipment inside coverage area and user equipment outside of coverage area in wireless communication system, and apparatus for same","description":"Disclosed in the present invention is a method for a first user equipment inside a coverage area of a base station conducting device-to-device communication with a second user equipment outside the co","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9615343","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-9615343","citation_suggestion":"Patentable. \"Method for obtaining synchronization for device-to-device communication between user equipment inside coverage area and user equipment outside of coverage area in wireless communication system, and apparatus for same\" (US-9615343). https://patentable.app/patents/US-9615343","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9615343","json":"https://patentable.app/api/llm-context/US-9615343","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:36:11.803Z"}