One method for sending a first data packet from a source network node to a network node destination, the method comprising the steps of: receiving (502) a control signal data rate from node destination network; determining a number of copies of the first data packet for delivery to destination network node based on said control signal data rate; encoding a first copy of the first data packet into a first signal; sending (506) said first signal to the destination network node; receiving (510) a signal of Stop-Repeat from the destination network node, and send less than said number of copies to the destination network node based on said signal Detener- Repetition.