![A staff member shows remote control with 5G and artificial intelligence (AI) technologies during the Mobile World Conference Shanghai (MWCS) 2018 in east China\'s Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)](http://www.ecns.cn/hd/2018/06/28/5b30520ef11d449da1bb407e2af14dff.jpg)
A staff member shows remote control with 5G and artificial intelligence (AI) technologies during the Mobile World Conference Shanghai (MWCS) 2018 in east China's Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)
![Visitors try out electronic ink devices during the Mobile World Conference Shanghai (MWCS) 2018 in east China\'s Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)](http://www.ecns.cn/hd/2018/06/28/551e098df0fd469594736060b94e14bf.jpg)
Visitors try out electronic ink devices during the Mobile World Conference Shanghai (MWCS) 2018 in east China's Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)
![A visitor walks past an exhibitor booth during the Mobile World Conference Shanghai (MWCS) 2018 in east China\'s Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)](http://www.ecns.cn/hd/2018/06/28/d85fc50deb9e4fae9e235d299a17899f.jpg)
A visitor walks past an exhibitor booth during the Mobile World Conference Shanghai (MWCS) 2018 in east China's Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)
![Visitors look at an interactive car dashboard that uses wireless network technologies during the Mobile World Conference Shanghai (MWCS) 2018 in east China\'s Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)](http://www.ecns.cn/hd/2018/06/28/5ca9f7f5439148ffa30a648abdf33dcc.jpg)
Visitors look at an interactive car dashboard that uses wireless network technologies during the Mobile World Conference Shanghai (MWCS) 2018 in east China's Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)
![Visitors look at a wireless network device on a driverless car during the Mobile World Conference Shanghai (MWCS) 2018 in east China\'s Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)](http://www.ecns.cn/hd/2018/06/28/fa9661ed078542ff99bd78081483220a.jpg)
Visitors look at a wireless network device on a driverless car during the Mobile World Conference Shanghai (MWCS) 2018 in east China's Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)
![A staff member (L) introduces solar-powered bus stop display panels based on electronic ink and wireless network technologies during the Mobile World Conference Shanghai (MWCS) 2018 in east China\'s Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)](http://www.ecns.cn/hd/2018/06/28/57b5c98206554e51b49b3b994e635705.jpg)
A staff member (L) introduces solar-powered bus stop display panels based on electronic ink and wireless network technologies during the Mobile World Conference Shanghai (MWCS) 2018 in east China's Shanghai, June 27, 2018. The three-day MWCS 2018 kicked off at the Shanghai New International Expo Center on Wednesday, showing trending mobile products, services and technologies. (Xinhua/Fang Zhe)