{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9768923","patent":{"patent_number":"US-9768923","title":"Method and apparatus for acquiring uplink synchronization in wireless communication system","assignee":null,"inventors":[],"filing_date":"2012-12-20T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["H04L","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":18,"abstract":"The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for acquiring uplink synchronization in a terminal having a plurality of cells in a carrier aggregation-based wireless communication system and an apparatus therefor, the method comprising the steps of: transmitting a random access preamble on a first cell; receiving a random access response message including an uplink timing adjustment value for the first cell after transmitting the random access preamble; and performing uplink transmission in the first cell by using the uplink timing adjustment value, wherein a transmission time point of the random access preamble is given based on a specific time point related to a second cell."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for acquiring uplink synchronization in wireless communication system","description":"The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for acquiring uplink synchronization in a terminal having a plurality of ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9768923","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-9768923","citation_suggestion":"Patentable. \"Method and apparatus for acquiring uplink synchronization in wireless communication system\" (US-9768923). https://patentable.app/patents/US-9768923","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9768923","json":"https://patentable.app/api/llm-context/US-9768923","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:33:18.113Z"}