Invention Grant
- Patent Title: Time synchronization in a satellite network
- Patent Title (中): 卫星网络中的时间同步
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Application No.: US14569339Application Date: 2014-12-12
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Publication No.: US09544079B2Publication Date: 2017-01-10
- Inventor: Aneesh Vasudev Dalvi , Mohsen Amiri Farahani
- Applicant: VT IDIRECT, INC.
- Applicant Address: US VA Herndon
- Assignee: VT IDIRECT, INC.
- Current Assignee: VT IDIRECT, INC.
- Current Assignee Address: US VA Herndon
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04J3/06 ; G01S19/23 ; H04B7/185

Abstract:
A remote device comprising a remote clock oscillator with relatively low precision, a receiver that receives time packets transmitted periodically from the hub device via the satellite, each time packet including a hub real time clock (RTC) value and a hub network clock reference (NCR) value, a remote RTC counter that represents a remote RTC value at the remote, a remote NCR counter that represents a remote NCR value at the remote, and processing circuitry that extracts the hub RTC value and the hub NCR value from a current time packet, compares contents of the current time packet with contents of a previously received time packet, and adjusts the remote RTC counter based on the result of the comparison to synchronize the remote RTC value at the remote with the hub RTC value.
Public/Granted literature
- US20150215031A1 TIME SYNCHRONIZATION IN A SATELLITE NETWORK Public/Granted day:2015-07-30
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