China Mobile could be on the hook for as much as $15 billion for the construction of the new national 700MHz network. The giant telco's partnership with newcomer China Broadcast Network (CBN) has never been thought to have been one of equals. But it has now revealed it will foot the entire bill for the construction of the greenfield 5G network. That's a departure from the original agreement, inked in January , in which both parties agreed to jointly invest at a 1:1 ratio. In a "supplemental agreement" announced on September 10, Hong Kong-listed China Mobile Ltd said its fully...