5g system support for conveying tsn time synchronization

Abstract

Systems and methods to enable 5G system support for conveying time synchronization are provided. In some embodiments, a method performed by a wireless device for conveying external time domain information is provided. The method includes receiving a message in a first time domain used by the wireless device, the message comprising external time domain information; determining information about a second time domain based on the external time domain information; and conveying information about the second time domain to another node. In some embodiments, timing information is included into a GPRS Tunneling Protocol (GTP) payload, and the wireless device can get timing information directly from the data payload. This minimizes the RAN and/or gNB impact and adds the potential for multiple time domain support.

What is claimed is: 
     
         1 . A method performed by a wireless device in a telecommunication system connected to an external (g)PTP domain for conveying external time domain information, the method comprising:
 receiving, from a network translator in the telecommunication system, a Precision Time Protocol, (g)PTP, message originated by the external (g)PTP domain, the g(PTP) message comprises a (g)PTP suffix and   a correction field value; where the (g)PTP suffix and the correction field value are modified by the network translator in the telecommunication system;   determining a timestamp delta that indicates a difference between a first timestamp provided in the (g)PTP suffix and a second timestamp provided by the wireless device;   updating the correction field value to include the determined timestamp delta; and   conveying the updated correction field value to an end station.