{HEAD ~ The method} 3, wherein {TAIL ~ the step} of transmitting is performed when information regarding availability of the specific radio communication service is not currently retained by the radio communication unit 
wherein
{ HEAD ~ The method } 3 , wherein { TAIL ~ the step } of transmitting is performed when information regarding availability of the specific radio communication service is not currently retained by the radio communication unit
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH