{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9749975","patent":{"patent_number":"US-9749975","title":"Systems and methods for implementing protected access based on a null data packet in a wireless network","assignee":null,"inventors":[],"filing_date":"2015-04-27T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04W","H04W","H04L","H04L","H04W","H04W","H04W"],"num_claims":31,"abstract":"An access point including a generation module, a transceiver, and an acknowledgment module. The generation module is configured to generate a synchronization signal. The transceiver is configured to (i) transmit the synchronization signal to a station, (ii) receive a medium access control protocol data unit based on the synchronization signal during a transmit opportunity period for the station. The acknowledgment module is configured to generate an acknowledgment signal based on the reception of the medium access control protocol data unit. The synchronization signal or the acknowledgment signal includes a null data packet frame. The null data packet frame includes a legacy signal field. The legacy signal field comprises a length of a portion of the null data packet frame subsequent to the legacy signal field. The transceiver is configured to transmit the acknowledgment signal to the station."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Systems and methods for implementing protected access based on a null data packet in a wireless network","description":"An access point including a generation module, a transceiver, and an acknowledgment module. The generation module is configured to generate a synchronization signal. The transceiver is configured to (","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9749975","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-9749975","citation_suggestion":"Patentable. \"Systems and methods for implementing protected access based on a null data packet in a wireless network\" (US-9749975). https://patentable.app/patents/US-9749975","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9749975","json":"https://patentable.app/api/llm-context/US-9749975","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:45:52.112Z"}