{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9787449","patent":{"patent_number":"US-9787449","title":"Method for triggering aperiodic sounding reference symbol, base station and user equipment","assignee":null,"inventors":[],"filing_date":"2016-01-11T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["H04L","H04W","H04W","H04W","H04W","H04W","H04L","H04W","H04W"],"num_claims":16,"abstract":"A method for triggering an aperiodic sounding reference symbol, includes: receiving a Downlink Control Information (DCI) indicating a transmission of an aperiodic Sounding Reference Symbol (SRS) from a base station which configures a resource used for transmission of the aperiodic SRS; maintaining the resource for transmitting the aperiodic SRS when there is at least one of a loss of uplink synchronization when a timer relating to the uplink synchronization expires and a failure in transmission of a scheduling request transmitted more than a predetermined number of times; and executing a random access procedure."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for triggering aperiodic sounding reference symbol, base station and user equipment","description":"A method for triggering an aperiodic sounding reference symbol, includes: receiving a Downlink Control Information (DCI) indicating a transmission of an aperiodic Sounding Reference Symbol (SRS) from ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9787449","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-9787449","citation_suggestion":"Patentable. \"Method for triggering aperiodic sounding reference symbol, base station and user equipment\" (US-9787449). https://patentable.app/patents/US-9787449","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9787449","json":"https://patentable.app/api/llm-context/US-9787449","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:51:36.136Z"}