Hi Siri,
Problem found, the CC1101 is working perfectly, the problem is that after putting the radio in WOR state, I need to put Microcontroller (a stm32f) in power down state, and the problem is it, when the instruction is executed to power it down, but I dont know why it is not going immediatly to power-down state, resulting in a loss of interrupts.
Thank you very much for your help and attention again, and sorry for taking your time.
Bruno.