{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8514768","patent":{"patent_number":"US-8514768","title":"Method and apparatus for transmitting reference signal performed by relay station in wireless communication system","assignee":null,"inventors":[],"filing_date":"2009-12-10T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H04L","H04L","H04W","H04W"],"num_claims":6,"abstract":"A method of transmitting a reference signal performed by a Relay Station (RS) in a wireless communication system comprises allocating a guard time in the front of a backhaul subframe or the end of the backhaul subframe, the backhaul subframe comprising a plurality of slots, each of the plurality of slots comprising a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the guard time being a time interval for switching between an access link and a backhaul link, and transmitting a Demodulation Reference Signal (DMRS) to a Base Station (BS) in an OFDM symbol of the backhaul subframe. The OFDM symbol for the DMRS is not over-lapped with the guard time."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for transmitting reference signal performed by relay station in wireless communication system","description":"A method of transmitting a reference signal performed by a Relay Station (RS) in a wireless communication system comprises allocating a guard time in the front of a backhaul subframe or the end of the","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8514768","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-8514768","citation_suggestion":"Patentable. \"Method and apparatus for transmitting reference signal performed by relay station in wireless communication system\" (US-8514768). https://patentable.app/patents/US-8514768","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8514768","json":"https://patentable.app/api/llm-context/US-8514768","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T10:02:15.983Z"}