How to receive data from multiple dw1000 at the same time

Hi all
I use one dw1000 chip A to send data. After receiving the data from the others two dw1000 chip B&C ,will setdelayedtrxtime respectively and send it back to A. but at this time, only one data was received.
If I want to receive data from BC at the same time, is it possible? How to deal with it