{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11490404","patent":{"patent_number":"US-11490404","title":"Demodulation reference signal patterns for dynamic spectrum sharing with increased spectral efficiency for 5G or other next generation network","assignee":null,"inventors":[],"filing_date":"2019-08-23T00:00:00.000Z","publication_date":"2022-11-01T00:00:00.000Z","cpc_codes":["H04L","H04W","H04L","H04L","H04W","H04L"],"num_claims":20,"abstract":"The disclosed subject matter is directed towards semi-static or dynamic shifting of New Radio demodulation reference signals to avoid collisions with LTE cell specific reference signals (LTE CRS) in a physical downlink shared channel symbol (PDSCH). In dynamic spread spectrum (DSS) deployments, where NR PDSCH mapping type B is used, e.g., to allow for two NR physical downlink control channel symbols, when the NR PDSCH starts on a symbol carrying LTE CRS, the NR DMRS of the NR PDSCH is shifted to the first symbol of the NR PDSCH not carrying LTE CRS. Whether mapping type A or mapping type B, shifting the symbol containing NR DMRS facilitates the use of two DMRS symbols without colliding with LTE CRS."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Demodulation reference signal patterns for dynamic spectrum sharing with increased spectral efficiency for 5G or other next generation network","description":"The disclosed subject matter is directed towards semi-static or dynamic shifting of New Radio demodulation reference signals to avoid collisions with LTE cell specific reference signals (LTE CRS) in a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11490404","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-11490404","citation_suggestion":"Patentable. \"Demodulation reference signal patterns for dynamic spectrum sharing with increased spectral efficiency for 5G or other next generation network\" (US-11490404). https://patentable.app/patents/US-11490404","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11490404","json":"https://patentable.app/api/llm-context/US-11490404","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:21:37.322Z"}