China has launched a trial run of home-grown fourth-generation mobile technology in Shanghai in what it called the world's first rollout of the wireless application, state press reported Monday.
4G technology provides wireless services at much faster speeds, sharply improving high-quality images and data services, and potentially allowing for such features as multi-channel high-definition TV broadcasting.
The 4G trial in Shanghai cost 150 million yuan (19 million dollars) and was billed by the government as the world's first rollout of the technology.
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