Build SA commercial network equipment in 5G base stations and cores
Applying network slicing function to wired network section
5G Quality Management with SDN-based Measurement, Analysis, and Monitoring


LG Uplus announced on the 20th that it has developed a network slicing function that can be utilized in wired network sections, following mobile base stations and core equipment, for commercialization of 5G standalone mode (SA).

Unlike the currently commercialized smartphone-centric 5G non-standalone mode (NSA), the SA environment can provide network slicing technology for differentiated service quality and low-latency services to corporate service subscribers.

In order to provide network slicing, in addition to base stations and core equipment, technology is needed to measure and analyze the 5G network in real time in the wired network section to notify of service and failure risks, and to actively maintain the shortest path when the network changes. This makes it possible to build an end-to-end SA commercial network from the terminal to the entire network section.

The technology applied this time is a solution that analyzes the 'Two Way Active Measurement Protocol (TWAMP)' through a software-defined network (SDN) controller and manages transmission quality. TWAMP (RFC 5357) is an international standard quality measurement technology designated by IETF that can measure and detect various errors in communication networks.

The quality of data loss, transmission delay, etc. in the 5G service section can be measured with TWAMP, and the measured data can be analyzed by the SDN controller to manage various risks and failure points in real time and in a multifaceted manner, and inconveniences to service customers can be detected and addressed without reports.

Previously, only limited quality status could be checked using a separate external quality measurement server. This time, the solution developed by LG U+ in cooperation with domestic and foreign equipment manufacturers measures the quality of the transmission section directly from each equipment, and the SDN controller manages the transmission quality in detail, allowing the optimal transmission path to be automatically selected according to the network status.

Meanwhile, LG Uplus successfully demonstrated heterogeneous equipment interconnection based on 5G SA in November of last year. In May and June of this year, it successfully conducted 5G SA tests and Vo5G commercial network tests on its commercial network.