Mobile phone maker Sony Ericsson it expects half of all mobile phones sold in China to be smartphones by 2015, as prices for handsets fall amid growing popularity.

Sony Ericsson, a joint venture between Sony Corp and Sweden's Ericsson, also aimed to become the biggest Android phone brand globally, Sony Ericsson President Bert Nordberg told reporters in Beijing, declining to give a timetable.

"I think we have been decently successful in the short time, and we have a goal for the company to be the biggest supplier of Android phones," Nordberg said.

When asked about talk that Sony could buy out Ericsson from their joint venture, Nordberg said: "I expect no change for a while."

Sony Ericsson is the world's fifth-biggest handset maker, with an about 17% share of the global market for smartphones.

China is the world's largest mobile market, with roughly 800 million subscribers.

The company recently introduced its first phone using TD-SCDMA, a homegrown Chinese technology used in a 3G network operated by China Mobile Ltd, the world's biggest wireless carrier by users.