17386325. METHOD AND APPARATUS FOR ACQUISITION OF RELIABLE TIME IN A WIRELESS NETWORK simplified abstract (QUALCOMM Incorporated)
Contents
METHOD AND APPARATUS FOR ACQUISITION OF RELIABLE TIME IN A WIRELESS NETWORK
Organization Name
Inventor(s)
Stephen William Edge of Escondido CA (US)
METHOD AND APPARATUS FOR ACQUISITION OF RELIABLE TIME IN A WIRELESS NETWORK - A simplified explanation of the abstract
This abstract first appeared for US patent application 17386325 titled 'METHOD AND APPARATUS FOR ACQUISITION OF RELIABLE TIME IN A WIRELESS NETWORK
Simplified Explanation
The patent application describes a method for obtaining accurate and reliable time in a wireless network. Here are the key points:
- User equipment (UE) acquires time from a base station in a wireless network.
- The base station ciphers at least a portion of the time before broadcasting it.
- The UE determines the propagation delay between itself and the base station using timing advance, known locations, or measured round trip propagation time (RTT).
- A corrected time is determined by the UE based on the time received from the base station and the propagation delay.
- The base station includes a digital signature with the broadcast time to increase reliability.
- The UE can detect spoofing of the broadcast time by an attacking device by checking if the propagation delay falls outside an expected range.
Potential applications of this technology:
- Mobile communication networks
- Internet of Things (IoT) devices
- Location-based services
- Financial transactions
- Network synchronization
Problems solved by this technology:
- Ensures accurate and reliable time synchronization in wireless networks
- Prevents spoofing or tampering of broadcasted time information
- Enables secure and trustworthy communication between devices in the network
Benefits of this technology:
- Improved accuracy and reliability of time synchronization
- Enhanced security and protection against attacks
- Enables efficient and precise coordination between devices in the network
Original Abstract Submitted
Accurate and reliable time is acquired by a user equipment (UE) from a base station in a wireless network. The base station may obtain the time, e.g., UTC time or a GNSS time, and ciphers at least a portion of the time before broadcasting the time. The UE determines a propagation delay between the UE and the base station based on a timing advance, known locations of the UE and the base station, or a measured round trip propagation time (RTT) between the UE and the base station. A corrected time can be determined based on the time received from the base station and the propagation delay. A digital signature included with the time broadcast by the base station increases reliability. Spoofing of the broadcast time by an attacking device may be detected by the UE based on the propagation delay being outside an expected range.
