{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9787514","patent":{"patent_number":"US-9787514","title":"Method and apparatus for transmitting and receiving reference signal in wireless communication system","assignee":null,"inventors":[],"filing_date":"2015-05-04T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["H04L","H04J","H04L","H04L","H04L","H04L","H04W","H04W","H04W","H04W"],"num_claims":12,"abstract":"The present invention relates to a method and an apparatus for transmitting and receiving a reference signal in a wireless communication system. In the method, in order to dynamically switch an uplink (UL) Demodulation-Reference Signal (DM-RS) according to the communication environment, such as CoMP and MU-MIMO, a parameter set for generation of a reference signal sequence is configured to include a Virtual Cell Identifier (VCID) parameter configured by information of a total of 9 bits and a cyclic shift hopping initial value parameter cinitCSH, which is 9-bit information representing one integer value among 510 integer values. Therefore, it may be possible to achieve dynamic transmission or reception of a reference signal and channel estimation through the dynamic transmission or reception of the reference signal even when the communication environment dynamically changes as in a Cooperative Multiple Point transmission and reception (CoMP) scenario."},"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 and receiving reference signal in wireless communication system","description":"The present invention relates to a method and an apparatus for transmitting and receiving a reference signal in a wireless communication system. In the method, in order to dynamically switch an uplink","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9787514","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-9787514","citation_suggestion":"Patentable. \"Method and apparatus for transmitting and receiving reference signal in wireless communication system\" (US-9787514). https://patentable.app/patents/US-9787514","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9787514","json":"https://patentable.app/api/llm-context/US-9787514","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:19:27.119Z"}