Method and apparatus for transceiving data in wireless communication system

Abstract

A method, performed by a user equipment (UE), of reselecting a cell in a wireless communication system is provided. The method includes determining, by using at least one parameter received from a serving cell, whether to reselect at least one non-serving cell and reselecting a target cell from among the at least one non-serving cell, based on a result of the determining, wherein the reselecting of the target cell includes determining, by using at least one parameter received from the target cell, whether the target cell satisfies a cell selection criterion.

1 - 13 . (canceled) 
     
     
         14 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
 receiving, from a base station, a radio resource control (RRC) release message including suspend configuration information;   starting a T380 timer and transitioning to an RRC inactive state;   identifying whether the UE is camped on a suitable cell in case that the T380 timer expires; and   performing an RRC state transition based on identifying that the UE is not camped on the suitable cell.   
     
     
         15 . The method of  claim 14 , wherein identifying that the UE is not camped on the suitable cell comprises:
 identifying that the UE is temporarily out of coverage from camped normally state.   
     
     
         16 . The method of  claim 14 , wherein identifying that the UE is not camped on the suitable cell comprises:
 identifying that the UE is in an any cell selection state.   
     
     
         17 . The method of  claim 14 , wherein performing the RRC state transition comprises:
 performing a transition from the RRC inactive state to an RRC idle state based on identifying that the UE is not camped on the suitable cell.   
     
     
         18 . The method of  claim 17 , further comprising:
 triggering an non access stratum (NAS) recovery procedure.   
     
     
         19 . The method of  claim 14 , wherein performing the RRC state transition comprises:
 starting a wait timer and maintaining the RRC inactive state based on the wait timer.   
     
     
         20 . The method of  claim 19 , further comprising:
 identifying a suitable cell to camp on and performing RRC connection resume process.   
     
     
         21 . The method of  claim 19 , further comprising:
 performing a transition from the RRC inactive state to an RRC idle state in case that the wait timer expires.   
     
     
         22 . A user equipment (UE) in a wireless communication system, the UE comprising:
 a transceiver; and   at least one processor coupled with the transceiver and configured to:
 receive, from a base station, a radio resource control (RRC) release message including suspend configuration information, 
 start a T380 timer and transitioning to an RRC inactive state, 
 identify whether the UE is camped on a suitable cell in case that the T380 timer expires, and 
 perform an RRC state transition based on identifying that the UE is not camped on the suitable cell. 
   
     
     
         23 . The UE of  claim 22 , wherein identifying that the UE is not camped on the suitable cell comprises:
 identifying that the UE is temporarily out of coverage from camped normally state.   
     
     
         24 . The UE of  claim 22 , wherein identifying that the UE is not camped on the suitable cell comprises:
 identifying that the UE is in an any cell selection state.   
     
     
         25 . The UE of  claim 22 , wherein the at least one processor is further configured to:
 perform a transition from the RRC inactive state to an RRC idle state based on identifying that the UE is not camped on the suitable cell.   
     
     
         26 . The UE of  claim 25 , wherein the at least one processor is further configured to:
 trigger an non access stratum (NAS) recovery procedure.   
     
     
         27 . The UE of  claim 22 , wherein the at least one processor is further configured to:
 based on identifying that the UE is not camped on the suitable cell, start a wait timer and maintain the RRC inactive state based on the wait timer.   
     
     
         28 . The UE of  claim 27 , wherein the at least one processor is further configured to:
 identify a suitable cell to camp on and perform RRC connection resume process.   
     
     
         29 . The UE of  claim 27 , wherein the at least one processor is further configured to:
 perform a transition from the RRC inactive state to an RRC idle state in case that the wait timer expires.