Originally Posted by
sinoflyer
If separate tickets, then there are no ifs, ands, or buts. You must clear immigration and proceed as a domestic passenger. This process is uniform throughout China. Whereas in places like PEK you can check in right next to baggage claim, after clearing customs, in XIY no such facility exists so that you must go upstairs to domestic departures in T3.
Oh!? I didn't realise this. I thought that it was only for linked itineraries. I'll have to try this next time I pass through.