The duplicated data packets are sent to the mobile station over a target radio access node from {HEAD ~ the packet data source node} acting as {TAIL ~ target node} 
acting as
The duplicated data packets are sent to the mobile station over a target radio access node from { HEAD ~ the packet data source node } acting as { TAIL ~ target node }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL