HiI have tickets that have me going via Dubai, giving me with 1hr 10min transit time. I will be coming from LHR to Dubai on Emirates EK0030 and leaving on Emirates EK0376 to BKK. I don't know either the arrival gate or the next flight's departure gate. I only know that both will be in the same terminal, T3. How large is this terminal and what is the maximum amount of time that it might take to get from one gate to another? Also, during the transit, is there a possibility that a bus/train needs to be taken? I have a knee problem.

many thanks