Motorola has developed technology to enable mobile phone users to download music or video content faster than on existing 3G networks.

The company's High Speed Uplink Packet Access (HSUPA) technology offers 4Mbps speeds: 3G phone speeds offer up to 384Kbps.

The company is demonstrating the technology at the 3GSM World Congress.

HSUPA is designed to achieve potential peak network uplink speeds of up to 5.8Mbps that will further enhance mobile broadband services. However, in practice the peak network data rate capability is shared amongst multiple users at any one time - so individual user data speeds will be lower.

Raghu Rau, senior vice president, of global marketing and strategy at Motorola Networks said: "With HSUPA, multimedia applications such as music, email, interactive mobile gaming and video sharing offer operators valuable new revenue-generating opportunities."