special counters for picking up tickets at Chongqing North Railway Station

Hi,

I have booked the CRH train tickets (CQ to CD and CD to CQ) online . I am curious that now it's still possible to exchange the e-tickets for the paper tickets at the train ticket office at the Airport or have to exchange at the Railway Station only .
Are there any special counters for picking up tickets for those who have the e-tickets at the North Railway Station? If yes, how can I find these special counters?