{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9819457","patent":{"patent_number":"US-9819457","title":"Device and method for adaptive channel estimation","assignee":null,"inventors":[],"filing_date":"2015-09-04T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L"],"num_claims":20,"abstract":"A user equipment and method performs an adaptive channel estimation. The method performed at a user equipment includes receiving physical downlink control channel (PDCCH) information for a subframe from a network, the subframe including reference symbols at predetermined times therein. If the PDCCH information does not include a downlink grant for the user equipment, a measured value of a network metric experienced by the user equipment is determined and compared to a threshold criteria. A first set of the reference symbols is used for channel estimation when the threshold value is satisfied and a second set of the reference symbols is used for channel estimation when the threshold is not satisfied, the first set of references symbols is a subset of the second set of the reference symbols. In another embodiment, a previously determined channel estimation at a previous subframe is used for the subframe when the threshold is satisfied."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Device and method for adaptive channel estimation","description":"A user equipment and method performs an adaptive channel estimation. The method performed at a user equipment includes receiving physical downlink control channel (PDCCH) information for a subframe fr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9819457","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-9819457","citation_suggestion":"Patentable. \"Device and method for adaptive channel estimation\" (US-9819457). https://patentable.app/patents/US-9819457","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9819457","json":"https://patentable.app/api/llm-context/US-9819457","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:31:18.340Z"}