Link path calculation method, apparatus, terminal and computer-readable storage medium

A link path calculation device, comprising:

• a first acquisition module configured to acquire a topology containing a TSN bridge, the TSN bridge comprising a 5GS TSN virtual bridge and a common TSN bridge;
• a second acquisition module configured to acquire a latency parameter of a link of the TSN bridge;
• a third acquisition module configured to acquire a minimum latency Tmin achievable by the 5GS-TSN-VB as a 5GS, wherein UE connected to a listener is located at the 5GS-TSN-VB, and a maximum latency MaxLatency in service requirements;
• a first calculation module configured to calculate an optimal path and determine a sum Tc of all link latencies on the optimal path;
• a second calculation module configured to determine, according to the Tc, Tmin, and MaxLatency, a maximum latency Tmax tolerated by the 5GS-TSN-VB;
• a third calculation module configured to determine an optimal value Tmax−O of the Tmax according to the Tmax, the Tmax−O being less than or equal to the Tmax and the Tmax−O being greater than zero;
• and
• a sending module configured to send service flow information and the Tmax−O as latency requirements to a 5GS system corresponding to the 5GS-TSN-VB, and send the service flow information to a corresponding TSN bridge in response to path calculation being successful.

A link path calculation terminal device applied to a 5GS-TSN-VB link, comprising:

• a memory storing one or more computer programs;
• a processor configured to execute the one or more computer programs to implement a link path calculation method applied to the 5GS-TSN-VB link, comprising:
• acquiring a topology containing a TSN bridge, the TSN bridge comprising a 5GS TSN virtual bridge and a common TSN bridge;
• acquiring a latency parameter of a link of the TSN bridge;
• acquiring a minimum latency Tmin achievable by the 5GS-TSN-VB as a 5GS, wherein UE connected to a listener is located at the 5GS-TSN-VB;
• and acquiring a maximum latency MaxLatency in service requirements;
• calculating an optimal path and determining a sum Tc of all link latencies on the optimal path;
• determining, according to the Tc, Tmin, and MaxLatency, a maximum latency Tmax tolerated by the 5GS-TSN-VB;
• determining an optimal value Tmax−O of the Tmax according to the Tmax, the Tmax−O being less than or equal to the Tmax and the Tmax−O being greater than zero;
• and
• sending service flow information and the Tmax−O as latency requirements to a 5GS system corresponding to the 5GS-TSN-VB, and sending the service flow information to a corresponding TSN bridge in response to path calculation being successful;
• and
• a communication bus
• configured to implement connection and communication between the processor and the memory.