{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9848434","patent":{"patent_number":"US-9848434","title":"Methods and devices for contention based random access","assignee":null,"inventors":[],"filing_date":"2013-07-29T00:00:00.000Z","publication_date":"2017-12-19T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W","H04W","H04W"],"num_claims":17,"abstract":"The present teachings relates to methods performed in a network node of a wireless communication network. The method comprises: broadcasting one or more threshold values enabling the wireless devices to determine fulfillment of one or more criteria for selecting a contention based random access preamble either from a first preamble group or from a second preamble group for use in a contention based random access procedure; transmitting to a selected wireless device one or more threshold values using dedicated signaling, the one or more threshold values sent in the dedicated signaling overriding a corresponding broadcasted threshold value and being set so that the wireless device fulfills the criteria to select a preamble from the first preamble group, wherein the threshold values sent on the dedicated signaling differ from the broadcast threshold values; and prioritizing preambles of the first preamble group over preambles of the second preamble group."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and devices for contention based random access","description":"The present teachings relates to methods performed in a network node of a wireless communication network. The method comprises: broadcasting one or more threshold values enabling the wireless devices ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9848434","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-9848434","citation_suggestion":"Patentable. \"Methods and devices for contention based random access\" (US-9848434). https://patentable.app/patents/US-9848434","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9848434","json":"https://patentable.app/api/llm-context/US-9848434","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:00:11.668Z"}