TSN Time Synchronization Updates for Lower 3GPP Signaling Load

The patent implements dynamic adjustment of TSCAI update intervals based on actual network conditions and traffic characteristics. The SMF determines whether to update TSCAI by evaluating current latency requirements against configured thresholds, allowing the system to adaptively change update frequency rather than using fixed periodic updates. This resolves the contradiction by making the update rate flexible - increasing it only when necessary to meet latency requirements while reducing it during stable periods to minimize signaling load.

The patent changes the parameter of TSCAI update interval from a fixed value to a dynamically determined value based on multiple factors including latency requirements, traffic type, and network conditions. The SMF adjusts the update interval parameter adaptively, extending it when latency requirements are met and reducing it when latency degradation is detected. This parameter transformation allows the system to optimize between latency performance and signaling overhead.

The patent implements a feedback mechanism where the SMF continuously monitors time synchronization accuracy and latency performance, then uses this feedback to adjust TSCAI update frequency. When synchronization drift or latency degradation is detected, the system increases update frequency; when performance is adequate, it reduces updates. This feedback-controlled approach maintains synchronization precision while minimizing unnecessary updates that consume network resources.

The patent applies partial updates of TSCAI information rather than complete periodic refreshes. The SMF determines whether to update TSCAI based on actual need, performing updates only when latency requirements indicate degradation or when synchronization accuracy falls below thresholds. This partial action approach maintains necessary precision while avoiding excessive updates that would waste network resources.