{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9681487","patent":{"patent_number":"US-9681487","title":"Signal designs for D2D subframes","assignee":null,"inventors":[],"filing_date":"2014-09-26T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H04W","H04B","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":16,"abstract":"Embodiments of the present disclosure describe apparatuses and methods for signal designs for device-to-device (D2D) subframes. Various embodiments may include a UE with a radio transceiver to communicate with another UE via D2D communications. The UE may further include processing circuitry to generate a cyclic prefix (CP) for a first or second symbol of a D2D subframe at an orthogonal frequency division multiplexing (OFDM) resource block or a single-carrier frequency-division multiple access (SC-FDMA) resource block. Other embodiments may be described and/or claimed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Signal designs for D2D subframes","description":"Embodiments of the present disclosure describe apparatuses and methods for signal designs for device-to-device (D2D) subframes. Various embodiments may include a UE with a radio transceiver to communi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9681487","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-9681487","citation_suggestion":"Patentable. \"Signal designs for D2D subframes\" (US-9681487). https://patentable.app/patents/US-9681487","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9681487","json":"https://patentable.app/api/llm-context/US-9681487","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:00:30.407Z"}