Method and apparatus for supporting network connection of terminal in next generation mobile communication system

Abstract

A communication scheme and a system thereof for converging an internet of things (IoT) technology and a fifth generation (5G) communication system for supporting a high data transmission rate beyond that of a fourth generation (4G) system are provided. The disclosure may be applied to a smart service (e.g., a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, a security and security related service, or the like) based on a 5G communication technology and an IoT related technology. The disclosure relates to a method and an apparatus for supporting a terminal to set up connection to a network in a next generation mobile communication system.

What is claimed is: 
     
         1 . A method of a terminal in a wireless communication system, the method comprising:
 receiving, from a base station, a setup message for radio resource control (RRC) connection establishment;   obtaining a 5G identifier of the terminal, which has been assigned before receiving the setup message;   transmitting, to the base station, if the setup message is received based on transmitting a request message for requesting the RRC connection establishment, a complete message for confirming the RRC connection establishment including part of the 5G identifier; and   transmitting, to the base station, if the setup message is received not based on transmitting the request message for requesting the RRC connection establishment, the complete message for confirming the RRC connection establishment including the 5G identifier.   
     
     
         2 . The method of  claim 1 , wherein the receiving of the setup message comprises:
 transmitting, to the base station, a resume request message for requesting a resumption of a suspended RRC connection; and   receiving, from the base station, the setup message in response to the resume request message.   
     
     
         3 . The method of  claim 2 , wherein the resume request message includes an inactive state radio network temporary identifier (I-RNTI) or a part of the I-RNTI. 
     
     
         4 . The method of  claim 1 , wherein the receiving of the setup message comprises:
 transmitting, to the base station, the request message for requesting the RRC connection establishment including a first part of the 5G identifier; and   receiving, from the base station, the setup message for the RRC connection establishment in response to the request message,   wherein the part of the 5G identifier included in the completer message is second part of the 5G identifier, and   wherein the first part of the 5G identifier is predetermined number of rightmost bits of the 5G identifier and the second part of the 5G identifier is remaining bits of the 5G identifier.   
     
     
         5 . The method of  claim 1 ,
 wherein the 5G identifier is included in a 5G globally unique temporary identifier (5G-GUTI) and the 5G identifier is 5G S-temporary mobile subscription identifier (5G-S-TMSI), and   wherein the 5G-GUTI has been assigned upon a successful registration of the terminal.   
     
     
         6 . A method of a base station in a wireless communication system, the method comprising:
 transmitting, to a terminal, a setup message for radio resource control (RRC) connection establishment;   receiving, from the terminal, if the setup message is transmitted based on receiving a request message for requesting the RRC connection establishment, a complete message for confirming the RRC connection establishment including part of a 5G identifier, the 5G identifier has been assigned before transmitting the setup message; and   receiving, from the terminal, if the setup message is transmitted not based on receiving the request message for requesting the RRC connection establishment, the complete message for confirming the RRC connection establishment including the 5G identifier.   
     
     
         7 . The method of  claim 6 , wherein the transmitting of the setup message comprises:
 receiving, from the terminal, a resume request message for requesting a resumption of a suspended RRC connection; and   transmitting, to the terminal, the setup message in response to the resume request message.   
     
     
         8 . The method of  claim 7 , wherein the resume request message includes an inactive state radio network temporary identifier (I-RNTI) or a part of the I-RNTI. 
     
     
         9 . The method of  claim 6 , wherein the transmitting of the setup message comprises:
 receiving, from the terminal, the request message for requesting the RRC connection establishment including a first part of the 5G identifier; and   transmitting, to the terminal, the setup message for the RRC connection establishment in response to the request message,   wherein the part of the 5G identifier included in the completer message is second part of the 5G identifier, and   wherein the first part of the 5G identifier is predetermined number of rightmost bits of the 5G identifier and the second part of the 5G identifier is remaining bits of the 5G identifier.   
     
     
         10 . The method of  claim 6 ,
 wherein the 5G identifier is included in a 5G globally unique temporary identifier (5G-GUTI) and the 5G identifier is 5G S-temporary mobile subscription identifier (5G-S-TMSI), and   wherein the 5G-GUTI has been assigned upon a successful registration of the terminal.   
     
     
         11 . A terminal in a wireless communication system, the terminal comprising:
 a transceiver; and   a controller configured to:
 control the transceiver to receive, from a base station, a setup message for radio resource control (RRC) connection establishment, 
 obtain a 5G identifier of the terminal, which has been assigned before receiving the setup message, 
 control the transceiver to transmit, to the base station, if the setup message is received based on transmitting a request message for requesting the RRC connection establishment, a complete message for confirming the RRC connection establishment including part of the 5G identifier, and 
 control the transceiver to transmit, to the base station, if the setup message is received not based on transmitting the request message for requesting the RRC connection establishment, the complete message for confirming the RRC connection establishment including the 5G identifier. 
   
     
     
         12 . The terminal of  claim 11 , wherein the controller is further configured to:
 control the transceiver to transmit, to the base station, a resume request message for requesting a resumption of a suspended RRC connection, and   control the transceiver to receive, from the base station, the setup message in response to the resume request message.   
     
     
         13 . The terminal of  claim 12 , wherein the resume request message includes an inactive state radio network temporary identifier (I-RNTI) or a part of the I-RNTI. 
     
     
         14 . The terminal of  claim 11 , wherein the controller is further configured to:
 control the transceiver to transmit, to the base station, the request message for requesting the RRC connection establishment including a first part of the 5G identifier, and   control the transceiver to receive, from the base station, the setup message for the RRC connection establishment in response to the request message,   wherein the part of the 5G identifier included in the completer message is second part of the 5G identifier, and   wherein the first part of the 5G identifier is predetermined number of rightmost bits of the 5G identifier and the second part of the 5G identifier is remaining bits of the 5G identifier.   
     
     
         15 . The terminal of  claim 11 ,
 wherein the 5G identifier is included in a 5G globally unique temporary identifier (5G-GUTI) and the 5G identifier is 5G S-temporary mobile subscription identifier (5G-S-TMSI), and   wherein the 5G-GUTI has been assigned upon a successful registration of the terminal.   
     
     
         16 . A base station in a wireless communication system, the base station comprising:
 a transceiver; and   a controller configured to:
 control the transceiver to transmit, to a terminal, a setup message for radio resource control (RRC) connection establishment, 
 control the transceiver to receive, from the terminal, if the setup message is transmitted based on receiving a request message for requesting the RRC connection establishment, a complete message for confirming the RRC connection establishment including part of a 5G identifier, the 5G identifier has been assigned before transmitting the setup message, and 
 control the transceiver to receive, from the terminal, if the setup message is transmitted not based on receiving the request message for requesting the RRC connection establishment, the complete message for confirming the RRC connection establishment including the 5G identifier. 
   
     
     
         17 . The base station of  claim 16 , wherein the controller is further configured to:
 control the transceiver to receive, from the terminal, a resume request message for requesting a resumption of a suspended RRC connection, and   control the transceiver to transmit, to the terminal, the setup message in response to the resume request message.   
     
     
         18 . The base station of  claim 17 , wherein the resume request message includes an inactive state radio network temporary identifier (I-RNTI) or a part of the I-RNTI. 
     
     
         19 . The base station of  claim 6 , wherein the controller is further configured to:
 control the transceiver to receive, from the terminal, the request message for requesting the RRC connection establishment including a first part of the 5G identifier, and   control the transceiver to transmit, to the terminal, the setup message for the RRC connection establishment in response to the request message,   wherein the part of the 5G identifier included in the completer message is second part of the 5G identifier, and   wherein the first part of the 5G identifier is predetermined number of rightmost bits of the 5G identifier and the second part of the 5G identifier is remaining bits of the 5G identifier.   
     
     
         20 . The base station of  claim 16 ,
 wherein the 5G identifier is included in a 5G globally unique temporary identifier (5G-GUTI) and the 5G identifier is 5G S-temporary mobile subscription identifier (5G-S-TMSI), and   wherein the 5G-GUTI has been assigned upon a successful registration of the terminal.