LUANDA, June 13 (Xinhua) -- The number of Angolans subscribing to wireless services has grown to about 74 in every 100 inhabitants, up from one in every 130 in 2002, a government minister has said.

今年6月，5G商用牌照发放迎来六周年。近期，不少用户发现手机上的“5G”信号标识变成了“5G-A”。什么是“5G-A”？“5G-A”又会带来什么改变？