Apparatus, system and method for mobile communication

Abstract

In order for making MTC more efficient and/or secure, a base station forming a communication system connects a UE to a core network. A node serves as an entering point to the core network for a service provider, and transmits traffic between the service provider and the UE. The node establishes, as a connection to the base station, a first connection for directly transceiving messages between the node and the base station. Alternatively, the node establishes a second connection for transparently transceiving the messages through a different node that is placed within the core network and has established a different secure connection to the base station.

1 . A first node in a mobile communication system, the first node comprising:
 a processor; and   a memory having stored thereon a set of instructions executable by the processor, wherein upon execution of the instructions the processor causes the first node to:   establish a connection between the first node and a second node,   receive small data from the second node using first information indicating the small data, the second node receiving, from a UE (User Equipment), a message including the small data, and   send a release request to the second node so that the second node deletes second information for the small data when the first node determines a release of the connection.   
     
     
         2 . The first node of  claim 1 , wherein the UE sends the message to the second node with integrity and confidentiality protection. 
     
     
         3 . The first node of  claim 1 , wherein in roaming case, the first node is located in HPLMN (Home PLMN (Public Land Mobile Network)) and a third node is located in VPLMN (Visited PLMN (Public Land Mobile Network)) for inter-connection with the first node, and the third node connects to the second node. 
     
     
         4 . The first node of  claim 1 , wherein the first node comprises a MTC-IWF (Machine-Type-Communication Inter-Working Function). 
     
     
         5 . The first node of  claim 1 , wherein the second node comprises an eNB (evolved NodeB). 
     
     
         6 . A method of a first node in a mobile communication system, the method comprising:
 establishing a connection between the first node and a second node;   receiving small data from the second node using first information indicating the small data, the second node receiving, from a UE (User Equipment), a message including the small data; and   sending a release request to the second node so that the second node deletes second information for the small data when the first node determines a release of the connection.   
     
     
         7 . The method of  claim 6 , wherein the UE sends the message to the second node with integrity and confidentiality protection. 
     
     
         8 . The method of  claim 6 , wherein in roaming case, the first node is located in HPLMN (Home PLMN (Public Land Mobile Network)) and a third node is located in VPLMN (Visited PLMN (Public Land Mobile Network)) for inter-connection with the first node, and the third node connects to the second node. 
     
     
         9 . The method of  claim 6 , wherein the first node comprises a MTC-IWF (Machine-Type-Communication Inter-Working Function). 
     
     
         10 . The method of  claim 6 , wherein the second node comprises an eNB (evolved NodeB). 
     
     
         11 . A UE (User Equipment) in a mobile communication system, the UE comprising:
 a processor; and   a memory having stored thereon a set of instructions executable by the processor, wherein upon execution of the instructions the processor causes the UE to:   send, to a second node, a message including small data, the second node sending the small data to a first node using first information indicating the small data; and   receive a response from the second node after the first node sends a release request of a connection between the first node and the second node to the second node so that the second node deletes second information for the small data.   
     
     
         12 . The UE of  claim 11 , wherein the UE sends the message to the second node with integrity and confidentiality protection. 
     
     
         13 . The UE of  claim 11 , wherein in roaming case, the first node is located in HPLMN (Home PLMN (Public Land Mobile Network)) and a third node is located in VPLMN (Visited PLMN (Public Land Mobile Network)) for inter-connection with the first node, and the third node connects to the second node. 
     
     
         14 . The UE of  claim 11 , wherein the first node comprises a MTC-IWF (Machine-Type-Communication Inter-Working Function). 
     
     
         15 . The UE of  claim 11 , wherein the second node comprises an eNB (evolved NodeB). 
     
     
         16 . A method of a UE (User Equipment) in a mobile communication system, the method comprising:
 sending, to a second node, a message including small data, the second node sending the small data to a first node using first information indicating the small data; and   receiving a response from the second node after the first node sends a release request of a connection between the first node and the second node to the second node so that the second node deletes second information for the small data.   
     
     
         17 . The method of  claim 16 , wherein the UE sends the message to the second node with integrity and confidentiality protection. 
     
     
         18 . The method of  claim 16 , wherein in roaming case, the first node is located in HPLMN (Home PLMN (Public Land Mobile Network)) and a third node is located in VPLMN (Visited PLMN (Public Land Mobile Network)) for inter-connection with the first node, and the third node connects to the second node. 
     
     
         19 . The method of  claim 16 , wherein the first node comprises a MTC-IWF (Machine-Type-Communication Inter-Working Function). 
     
     
         20 . The method of  claim 16 , wherein the second node comprises an eNB (evolved NodeB).