{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9838863","patent":{"patent_number":"US-9838863","title":"Device-to-device communication in a cellular communication system","assignee":null,"inventors":[],"filing_date":"2015-03-12T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W"],"num_claims":25,"abstract":"A method performed in a device-to-device (D2D) enabled device, for transmitting discovery signals for enabling D2D communication establishment in a cellular communication system is disclosed. The method comprises assigning, by a controller of the device, a time in a periodic time schedule and at least a subcarrier among a plurality of subcarriers assigned for carrier for D2D communication of the communication system based on a dynamic rule for spreading timing and/or subcarrier selection for the discovery signal. Furthermore, the method comprises transmitting, by a transceiver of the device, the discovery signal according to the time and subcarrier assignment provided by the controller."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Device-to-device communication in a cellular communication system","description":"A method performed in a device-to-device (D2D) enabled device, for transmitting discovery signals for enabling D2D communication establishment in a cellular communication system is disclosed. The meth","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9838863","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-9838863","citation_suggestion":"Patentable. \"Device-to-device communication in a cellular communication system\" (US-9838863). https://patentable.app/patents/US-9838863","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9838863","json":"https://patentable.app/api/llm-context/US-9838863","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:27:05.424Z"}