{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9629181","patent":{"patent_number":"US-9629181","title":"Link aware clear channel assessment","assignee":null,"inventors":[],"filing_date":"2015-03-13T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H04W","H04B","H04B","H04W","H04W","H04W","H04B","H04W"],"num_claims":23,"abstract":"A pair of Clear Channel Assessment (CCA) rules are presented that protect an initiator's transmission at the responder, and the responder's transmission at the initiator, using additional fields transmitted in a preamble (header) of a Physical Layer Convergence Procedure (PLCP) Protocol Data Unit (PPDU) or in a Media Access Control (MAC) header, if unencrypted and robustly modulated. These techniques enable more parallel/simultaneous transmissions between devices that might otherwise interfere with each other, subject to ensuring an adequate Signal-to-Interference and-Noise Ratio (SINR) for the initiator's transmission at the responder and ensuring an adequate SINR for the responder's transmission at the initiator."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Link aware clear channel assessment","description":"A pair of Clear Channel Assessment (CCA) rules are presented that protect an initiator's transmission at the responder, and the responder's transmission at the initiator, using additional fields trans","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9629181","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-9629181","citation_suggestion":"Patentable. \"Link aware clear channel assessment\" (US-9629181). https://patentable.app/patents/US-9629181","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9629181","json":"https://patentable.app/api/llm-context/US-9629181","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:05:22.406Z"}