Ericsson keeps network turnaround hopes alive By S

By Simon Johnson STOCKHOLM (Reuters) - U.S. investment in superfast 4G infrastructure helped Ericsson's main network equipment business grow in the first quarter, supporting hopes the market for mobile equipment is expanding again after a lean 2012. The Sweden-based group's networks unit, which accounts for more than half of total sales, has been under pressure and last year saw sales drop 12 percent because of the economic downturn and competition from China. But the fourth quarter showed signs of an improvement which has carried through into this year. ...