Telecoms giant Vodafone is edging higher on the Footsie, helping gains in the mobile telecommunications sector.Strong growth in the emerging markets and the increasing popularity of smartphones helped Vodafone post higher revenues and profits in the year to 31 March.Meanwhile, the technology hardware and equipment sector is the worst performing sector.Telecoms equipment firm BATM Advanced Communication, chip giant ARM Holdings and communications technology business Spirent are among those in the red.---BCTop performing sectors so far todayMobile Telecommunications 3,907.41 +1.57%Gas, Water & Multiutilities 4,706.51 +0.71%Fixed Line Telecommunications 2,392.73 +0.41%Financial Services 5,944.26 +0.35%Industrial Metals & Mining 7,588.92 +0.24%Bottom performing sectors so far todayTechnology Hardware & Equipment 741.34 -2.48%Industrial Engineering 7,189.31 -1.93%Software & Computer Services 742.65 -1.68%Pharmaceuticals & Biotechnology 9,556.33 -1.47%Health Care Equipment & Services 3,800.95 -1.43%