{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9698954","patent":{"patent_number":"US-9698954","title":"Multiplexing demodulation reference signals in wireless communications","assignee":null,"inventors":[],"filing_date":"2016-02-08T00:00:00.000Z","publication_date":"2017-07-04T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L","H04L","H04J","H04J"],"num_claims":9,"abstract":"Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple layers in multiple-input multiple-output (MIMO) communications. A CS index can be received from a base station in downlink control information (DCI) or similar signaling. Based at least in part on the CS index, CS values for the plurality of DM-RS can be determined. In addition, OCC can be explicitly signaled or similarly determined from the CS index and/or a configured CS value received from a higher layer. In addition, controlling assignment of CS indices and/or OCC can facilitate providing orthogonality for communications from paired devices in multiuser MIMO."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multiplexing demodulation reference signals in wireless communications","description":"Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple la","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9698954","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-9698954","citation_suggestion":"Patentable. \"Multiplexing demodulation reference signals in wireless communications\" (US-9698954). https://patentable.app/patents/US-9698954","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9698954","json":"https://patentable.app/api/llm-context/US-9698954","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:02:59.889Z"}