Internet technology manufacturer Huawei is planning to unveil a dongle capable of reaching speeds of up to 28Mb.

The firm is expected to show off the world's first HSPA+ USB modem stick at the Mobile World Congress in Barcelona next month.

This could be good news for Vodafone mobile broadband customers because Huawei is thought to be working with the provider in its ongoing trials.

Vodafone recently announced it has successfully tested HSPA+ technology capable of reaching speeds of up to 16Mb.

Andy MacLeod, global networks director of Vodafone, commented: "Successfully demonstrating a live HSPA+ high speed connection has been a key milestone in continuing to build confidence in this new technology."

Currently, Vodafone's mobile broadband customers can enjoy speeds of up to 7.2Mb, comparing favourably with many fixed-line speeds available in the UK.