IMAGINE a karaoke on-screen moment where you can be in one country and your co-singers in another,singing the same song at the same time!This seamless blend of separated performances is not some sci-fi fantasy,but one of the endless possibilities of the power of 5G,which provides minimum time lag and maximum broadband.In a speech delivered at the 2019 World 5G Convention held in Beijing on November 20,2019,Lei Jun.