{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9614653","patent":{"patent_number":"US-9614653","title":"Method and apparatus for performing Quasi Co-Location in wireless access system","assignee":null,"inventors":[],"filing_date":"2014-01-20T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["H04L","H04J","H04J","H04L","H04L","H04L","H04L","H04J","H04L"],"num_claims":8,"abstract":"The present invention relates to various methods for performing quasi co-location (QCL) and apparatuses supporting the same. As an embodiment of the present invention, a method for performing quasi co-location (QCL) for a new carrier type (NCT) by a terminal in a wireless access system may include the steps of: receiving a higher layer signal including a QCL reference CRS information parameter indicating CRS information of a reference carrier; receiving a physical downlink control channel (PDCCH) signal including a PDSCH remapping and quasi co-location indicator (PQI) field; receiving a CSI-RS of a QCLed NCT and a CRS of a reference carrier on the basis of a PQI field and a QCL reference CRS information parameter; and performing frequency tracking of the NCT and the reference carrier on the basis of the CSI-RS of the NCT and the CRS of the reference carrier."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for performing Quasi Co-Location in wireless access system","description":"The present invention relates to various methods for performing quasi co-location (QCL) and apparatuses supporting the same. As an embodiment of the present invention, a method for performing quasi co","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9614653","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-9614653","citation_suggestion":"Patentable. \"Method and apparatus for performing Quasi Co-Location in wireless access system\" (US-9614653). https://patentable.app/patents/US-9614653","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9614653","json":"https://patentable.app/api/llm-context/US-9614653","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:19:28.311Z"}