Nokia may be preparing to kick off a monstrous advertising blitz alongside the launch of its first round of Windows Phones, UK-based Marketing Magazine reports. The advertising campaign, which will apparently kick off in October when Nokia finally begins pushing out Microsoft-powered smartphones, is reportedly valued at just under $130 million. The new global campaign will seemingly be a rebranding mission of sorts, and will reportedly run for six months. Nokia has a steep climb ahead as it attempts to slow its bleeding market share while simultaneously attempting to get customers on board with a fledgling Windows Phone operating system that has not been well received thus far. Despite our love of the platform here at BGR, Microsoft’s share of the U.S. smartphone market has dropped by 35% since Windows Phone first launched in November, and International sales have been lackluster so far according to reports. Looking past its slow start, however, some analysts believe Windows Phone will quickly become one of the most popular mobile operating systems in the world. Pyramid Research, for example, believes Nokia will help propel Windows Phone sales faster than even Android saw during its rapid ascent to the No. 1 spot. Pyramid expects global Windows Phone sales to top Android in 2013.