BEIJING, March 20-- China Mobile started 4G service on the Yongshu Reef and Zhubi Reef on Friday, part of the Nansha Islands in the South China Sea.

The company said the construction and testing of 4G on the islands started before Chinese Lunar New Year on February 19 and took over one month under severe weather and geographical conditions.

The TD-LTE station on the Yongshu Reef is China's first 4G station opened through satellite transmission, according to the company.