TSC-5G QoS mapping with consideration of assistance traffic information and PCC rules for TSC traffic mapping and 5G QoS flows binding

A method performed by a first network function for Quality of Service (QOS) mapping in a Fifth Generation System (5GS) for a virtual Time Sensitive Networking (TSN) bridge, the method comprising:

• obtaining information from a TSN Application Function (AF), the information comprising:
• baseline Time Sensitive Communication (TSC) QOS parameters;
• and
• one or more additional parameters comprising either or both of:
• one or more additional TSC QoS attributes and one or more additional traffic attributes;
• generating one or more Policy and Charging Control (PCC) rules based on the obtained information;
• and
• providing the one or more PCC rules to a second network function,
• wherein:
• the one or more PCC rules provide a QoS mapping for one or more TSC traffic class;
• each of the one or more TSC traffic class consists of a plurality of TSC streams;
• and
• the one or more PCC rules are such that the TSC traffic class is mapped to N QoS flows in the 5GS based on at least one of the one or more additional parameters, wherein N is an integer number greater than 1.

A method performed by a second network function for Quality of Service (QOS) binding in a Fifth Generation System (5GS) for a virtual Time Sensitive Networking (TSN) bridge, the method comprising:

• receiving one or more Policy and Control (PCC) rules from a first network function, the one or more PCC rules comprising information that enables QoS mapping from a Time Sensitive Communication (TSC) traffic class to N QoS flows in the 5GS based on a plurality of parameters, wherein N is an integer number greater than 1 and the plurality of parameters comprise:
• baseline QoS parameters;
• and
• one or more additional parameters comprising either or both of:
• one or more additional TSC QoS attributes and one or more additional traffic attributes;
• and
• performing QoS binding based on the one or more PCC rules such that each PCC rule of the one or more PCC rules is associated to a respective QoS flow of a respective Protocol Data Unit (PDU) session,
• wherein:
• the one or more PCC rules provide a QoS mapping for one or more TSC traffic class;
• each of the one or more TSC traffic class consists of a plurality of TSC streams;
• and
• the one or more PCC rules are such that the TSC traffic class is mapped to N QoS flows in the PDU session based on at least one of the one or more additional parameters,
• wherein N is an integer number greater than 1.