Wireless communication network in wireless communication system

A method performed by a terminal in a 5th generation system (5GS), the method comprising:

• receiving, from a device for a user plane function (UPF) in the 5GS, a message for synchronization including:
• information for determining a residence time spent within the 5GS, and
• information of a link delay from a node of a time sensitive network (TSN) in a correction field of the message;
• identifying a residence time;
• and
• transmitting, to a slave associated with the TSN, an updated message including the residence time added to the correction field of the updated message.

A terminal in a 5th generation system (5GS), the terminal comprising:

• a transceiver;
• and
• at least one processor configured to:
• receive, from a device for a user plane function (UPF) in the 5Gs, a message for synchronization including:
• information for determining a residence time spent within the 5GS, and
• information of a link delay from a node of a time sensitive network (TSN) in a correction field of the message;
• identify a residence time;
• and
• transmit, to a slave associated with the TSN, an updated message including the residence time added to the correction field of the updated message.

A device for a user plane function (UPF) in a 5th generation system (5GS), the device comprising:

• a transceiver;
• and
• at least one processor configured to:
• receive, from a node of a time sensitive network (TSN), a message for synchronization;
• generate an updated message for synchronization by including:
• information for determining a residence time spent within the 5GS, and
• information of a link delay from the node of TSN, wherein the link delay is added to a correction field of the message;
• and
• transmit, to a terminal in the 5GS, the updated message for synchronization.