Correct me if I am wrong, but Softbank received 30mhz of 2.5ghz from Willcom in 2010 and as such, plans to deploy TD-LTE in that band with Speeds of 110mbps (up to 1gbps to fixed locations) coming to Japan shortly. Seeing as Sprint/Clearwire, Softbank and China Mobile are all in the market for making the 2.5ghz spectrum a viable 4g space, there are many synergies here and economies of scale that will bring overall costs down.