TOKYO -- Rakuten Group's mobile communications unit is a step closer to accessing high-frequency bands that it hopes will improve service as it seeks to generate cash on years of network investments.
Money-losing wireless carrier rushes to overcome connectivity problems

Rakuten Mobile is hoping improved service will help it achieve a goal of between 8 million and 10 million users. (Photo by Mayumi Tsumita)
TOKYO -- Rakuten Group's mobile communications unit is a step closer to accessing high-frequency bands that it hopes will improve service as it seeks to generate cash on years of network investments.