I am arriving in Beijing for a connection to Bangkok with American Airlines. My next flight is more than two hours later with another "One World Airline" Cathay Pacific. I have been told that I must collect my bags at Beijing, clear immigration and customs, and then check in again for the flight to Bangkok. This is because I have two separate tickets and, apparently, new rules were applied by airlines that with separate tickets I must clear immigration and customs.
My question is, since I only have carry-on luggage, can I simply transit through a transfer desk?