LGU+, Successful Test of Voice Calls Based on 5G Standalone Network

[Asia Economy Reporter Koo Chae-eun] LG Uplus has successfully demonstrated the voice call service technology based on 5G Standalone (SA) mode on a commercial network for the first time in Korea.

According to LG Uplus on the 16th, the current 5G network used by subscribers in Korea is a 5G Non-Standalone (NSA) mode that partially uses the LTE core network. Because of this, voice calls on 5G smartphones use the LTE network. However, in the future 5G Standalone mode, 5G and LTE cannot be used simultaneously. Therefore, to make voice calls, either the EPS FB method, which switches to the LTE network before calling, or the Vo5G method, which allows calls directly on the 5G network, must be used.

Accordingly, LG Uplus has successfully demonstrated both EPS FB and Vo5G technologies on a commercial network. An LG Uplus official explained, "This demonstration success follows the successful data transmission and reception test based on 5G Standalone mode on the commercial network in May, meaning that preparations to provide stable and high-quality 5G services in anticipation of the launch of 5G Standalone mode devices have been completed."

LG Uplus plans to adopt technologies that can provide high-quality and stable voice services upon the commercialization of 5G Standalone mode by continuously conducting quality tests and deriving improvement measures. Previously, in 2012, LG Uplus was the first in the world to commercialize VoLTE, which enables high-quality voice calls on LTE networks. Park Song-cheol, Executive Vice President and Head of the NW Technology Operation Group at LG Uplus, said, "Through commercial tests of candidate voice call technologies based on 5G, we have succeeded in securing core technologies for the commercialization of 5G Standalone mode," adding, "We will make every effort to prepare for the commercialization of 5G Standalone mode."

This content was produced with the assistance of AI translation services.