The present invention relates to {HEAD ~ a mobile terminal}, a network node, and {TAIL ~ a packet transfer management node} relating to a communication technique using Internet Protocol  
The present invention relates to { HEAD ~ a mobile terminal } , a network node , and { TAIL ~ a packet transfer management node } relating to a communication technique using Internet Protocol
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH