HANOI -- Viettel Group, Vietnam's biggest mobile carrier, plans to launch ultrafast 5G networks in 2021, a move expected to promote self-driving car systems and other cutting-edge services that depend on nearly instantaneous data communication.
Rival mobile service providers like No. 2 and No. 3 MobiFone and Vinaphone are also expected to launch 5G around the same time. This would make Vietnam an early adopter of the advanced standard. The country was one of the last of Southeast Asia's larger economies to roll out 4G.