Network slicing is a technology that splits a single physical 5G network into multiple virtual networks and sets different bandwidth, latency, reliability and security for each service. It can keep communications for safety staff stable even when traffic surges at major events. Full implementation hinges on 5G standalone mode, which builds a 5G core network. South Korea has launched an emergency communications priority service and carriers are testing business models, while capacity, security and net neutrality issues remain.

KT said on June 28 it conducted a pilot test of 5G standalone network slicing at a World Cup street cheering site in Seoul’s Gwanghwamun area on June 25. The technology divides a single 5G network into multiple virtual networks and allocates resources by service. KT assigned separate network resources to devices used by event staff and local government officials, using them for walkie-talkie-style communication and emergency contacts.