{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8503404","patent":{"patent_number":"US-8503404","title":"Uplink synchronization request method in mobile communication system, CDMA allocation IE thereof, and apparatus using the same","assignee":null,"inventors":[],"filing_date":"2007-03-20T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["H04W","H04W"],"num_claims":10,"abstract":"The present invention relates to an uplink synchronization request method in a mobile communication system, a CDMA allocation information element structure thereof, and an apparatus using the same. For this purpose the uplink synchronization request method includes: when uplink traffic is generated, determining whether an uplink synchronization error occurs; when the uplink synchronization error occurs, calculating a timing adjustment value; and transmitting a bandwidth request code including the calculated timing adjustment value to a base station and performing a bandwidth request. According to the present invention, the PSS compares a reference adjustment value and an arrival time of a downlink preamble to calculate uplink synchronization timing and synchronize an uplink of the PSS that requests bandwidth allocation through a bandwidth request ranging process to thereby maximize resource use efficiency in the uplink synchronization."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Uplink synchronization request method in mobile communication system, CDMA allocation IE thereof, and apparatus using the same","description":"The present invention relates to an uplink synchronization request method in a mobile communication system, a CDMA allocation information element structure thereof, and an apparatus using the same. Fo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8503404","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-8503404","citation_suggestion":"Patentable. \"Uplink synchronization request method in mobile communication system, CDMA allocation IE thereof, and apparatus using the same\" (US-8503404). https://patentable.app/patents/US-8503404","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8503404","json":"https://patentable.app/api/llm-context/US-8503404","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:07:02.788Z"}