Soon Clearwire, once a JV between Sprint Nextel, Comcast, Time Warner Cable, Bright House Networks, Google and Intel, might be wholly owned by Sprint. The telco wants to buy the WiMAX operator shares that it doesn't already own, according to an SEC filing Thurs. Clearwire confirmed in a filing that it's currently in discussions with Sprint regarding “a potential strategic transaction.” Sprint gained a majority stake (50.4%) earlier this year. As the telco worked to increase its stake, its cable partners have been dropping out. Time Warner Cable sold its 7.8% stake in Aug, followed by Comcast converting its Class B stake to Class A common shares, a move that many said signals a sale.