{
  "patent_number": "US 12464567",
  "country": "US",
  "title": "How Satellites Sync Timing for Faster 5G Internet Connections",
  "original_title": "Random access for broadband 4G and 5G over satellite",
  "summary": "A method for terminal devices to calculate precise timing offsets when connecting to 5G satellite networks, reducing the need for constant data updates from base stations.",
  "what_it_does": "This patent describes a way for a user's device (like a satellite phone or remote terminal) to figure out exactly when to send data to a satellite so it arrives at the base station at the right moment. Because satellites move quickly and are very far away, signals take time to travel, which can cause data collisions. The device uses a pre-agreed rule (a convention) that links the satellite's internal clock (System Frame Numbers) to a global time reference (GNSS time). By comparing when a signal arrives from the satellite to when it was supposedly sent, the device calculates a 'timing advance' to offset its own transmission. This allows the device to 'pre-compensate' for the delay, ensuring its data hits the base station's network window perfectly.",
  "what_it_does_not_cover": [
    "Does not cover systems that rely solely on real-time satellite ephemeris data broadcasts from the base station.",
    "Does not cover terrestrial-only 5G networks that do not utilize satellite relays.",
    "Does not cover methods that do not use a pre-established convention relating system frame numbers to a GNSS epoch.",
    "Does not cover non-broadband satellite communication protocols."
  ],
  "filed": "2023-07-13",
  "granted": "2025-11-04",
  "expires": null,
  "status": "active",
  "holder": "Lockheed Martin Corp",
  "holder_url": "https://patentbrief.org/company/lockheed-martin-corp",
  "inventors": [
    {
      "name": "Xiangdong Liu",
      "url": "https://patentbrief.org/inventor/xiangdong-liu"
    }
  ],
  "times_cited": 0,
  "tags": [
    "telecommunications",
    "aerospace",
    "consumer_electronics"
  ],
  "abstract": "Systems and methods for communication in 4G and 5G broadband satellite networks are provided. The disclosed methods include Global Navigation Satellite System (GNSS)-independent methods, and GNSS assisted methods that do not require transmission of satellite ephemeris information from a base station to user equipment.",
  "url": "https://patentbrief.org/patent/us/12464567/raptor-future",
  "markdown_url": "https://patentbrief.org/patent/us/12464567/raptor-future/md",
  "google_patents_url": "https://patents.google.com/patent/US12464567",
  "relatedPatents": []
}