Method and apparatus for performing communication in wireless communication system

Abstract

Disclosed is a method of a User Equipment, UE, in a telecommunication network, performing a measurement in an idle state, comprising the steps of: the network broadcasting a first message; the network transmitting a dedicated second message to the UE; wherein the first message comprises information related to one or more frequencies used in a particular cell in the network and the second message comprises information concerning frequencies specific to the LIE, wherein the UE receives the first and second messages and performs the measurement on at least one frequency present in both the first and second messages.

What is claimed is: 
     
         1 . A method of operating a terminal in a wireless communication system, the method comprising:
 receiving a dedicated message including information associated with a first list including at least one frequency to be measured;   receiving system information including information associated with a second list including at least one frequency to be measured via a broadcast signaling;   identifying whether a first frequency included in the first list is same as one of the at least one frequency included in the second list; and   in case that the first frequency is same as the one of the at least one frequency included in the second list, performing measurement on the first frequency in an idle state or in an inactive state.   
     
     
         2 . The method of  claim 1 ,
 wherein in case that the first frequency is not same as the one of the at least one frequency included in the second list, the first frequency is not measured in the idle state or in the inactive state.   
     
     
         3 . The method of  claim 1 , further comprising:
 entering the idle state or the inactive state based on the dedicated message.   
     
     
         4 . The method of  claim 1 , wherein the performing the measurement comprises:
 in case that a second frequency included in the second list is same as the first frequency, configuration information for measurement on the first frequency is not included in the dedicated message, and configuration information for measurement on the second frequency is included in the system information, performing measurement on the first frequency based on the configuration information for measurement on the second frequency included in the system information.   
     
     
         5 . The method of  claim 1 ,
 wherein in case that the first frequency is included in the first list and the dedicated message further includes configuration information for measurement on the first frequency, the performing the measurement comprises performing measurement on the first frequency based on the configuration information for measurement on the first frequency in the dedicated message even if a different measurement configuration is included for the first frequency in the system information.   
     
     
         6 . The method of  claim 1 , wherein the terminal operates in one of a Carrier Aggregation (CA) or Dual Connectivity (DC) mode prior to entering the idle state or the inactive state. 
     
     
         7 . A method of operating a base station (BS) in a wireless communication system, the method comprising:
 transmitting, to a terminal, a dedicated message including information associated with a first list including at least one frequency to be measured;   transmitting, to the terminal, system information including information associated with a second list including at least one frequency to be measured via a broadcast signaling; and   receiving, from the terminal, a result of measurement on a first frequency included in the first list and same as one of the at least one frequency included in the second list,   wherein the result of measurement on the first frequency comprises information measured in an idle state or in an inactive state of the terminal.   
     
     
         8 . The method of  claim 7 ,
 wherein in case that the first frequency is not same as the one of the at least one frequency included in the second list, the first frequency is not measured in the idle state or in the inactive state of the terminal.   
     
     
         9 . The method of  claim 7 , wherein the dedicated message is used to enter the idle state or the inactive state by the terminal. 
     
     
         10 . The method  claim 7 , wherein the result of measurement on the first frequency included in the first list and same as the one of the at least one frequency included in the second list comprises:
 in case that a second frequency included in the second list is same as the first frequency, configuration information for measurement on the first frequency is not included in the dedicated message, and configuration information for measurement on the second frequency is included in the system information, the result of measurement on the first frequency based on the configuration information for measurement on the second frequency included in the system information.   
     
     
         11 . The method  claim 7 , wherein the first frequency is included in the first list and the dedicated message further includes measurement configuration information for measurement on the first frequency, and
 wherein the result of measurement on the first frequency included in the first list and same as the one of the at least one frequency included in the second list comprises:   the result of measurement on the first frequency based on the measurement configuration information for measurement on the first frequency in the dedicated message even if a different measurement configuration is included for the first frequency in the system information.   
     
     
         12 . The method of  claim 7 , wherein the terminal operates in one of a Carrier Aggregation (CA) or Dual Connectivity (DC) mode prior to entering the idle state or the inactive state. 
     
     
         13 . A terminal in a wireless communication system, the terminal comprising:
 a transceiver; and   at least one processor configured to:
 control the transceiver to receive a dedicated message including information associated with a first list including at least one frequency to be measured, 
 control the transceiver to receive system information including information associated with a second list including at least one frequency to be measured via a broadcast signaling, 
 identify whether a first frequency included in the first list is same as one of the at least one frequency included in the second list, and 
 in case that the first frequency is same as the one of the at least one frequency included in the second list, perform measurement on the first frequency in an idle state or in an inactive state. 
   
     
     
         14 . The terminal of  claim 13 ,
 wherein in case that the first frequency is not same as the one of the at least one frequency included in the second list, the first frequency is not measured in the idle state or in the inactive state.   
     
     
         15 . The terminal of  claim 13 , wherein the at least one processor is configured to:
 in case that a second frequency included in the second list is same as the first frequency, configuration information for measurement on the first frequency is not included in the dedicated message, and configuration information for measurement on the second frequency is included in the system information, perform measurement on the first frequency based on the configuration information for measurement on the second frequency included in the system information.   
     
     
         16 . The terminal of  claim 13 ,
 wherein in case that the first frequency is included in the first list and the dedicated message further includes measurement configuration information for measurement on the first frequency, the at least one processor is further configured to:   perform measurement on the first frequency based on the measurement configuration information for measurement on the first frequency in the dedicated message even if a different measurement configuration is included for the first frequency in the system information.   
     
     
         17 . A base station in a wireless communication system, the base station comprising:
 a transceiver; and   at least one processor configured to:
 control the transceiver to transmit, to a terminal, a dedicated message including information associated with a first list including at least one frequency to be measured, 
 control the transceiver to transmit, to the terminal, system information including information associated with a second list including at least one frequency to be measured via a broadcast signaling, and 
 control the transceiver to receive, from the terminal, a result of measurement on a first frequency included in the first list and same as one of the at least on frequency included in the second list, 
 wherein the result of measurement on the first frequency comprises information measured in an idle state or in an inactive state of the terminal. 
   
     
     
         18 . The base station of  claim 17 ,
 wherein in case that the first frequency is not same as the one of the at least one frequency included in the second list, the first frequency is not measured in the idle state or in the inactive state of the terminal.   
     
     
         19 . The base station of  claim 17 , wherein the result of measurement on the first frequency included in the first list and same as the one of the at least one frequency included in the second list comprises:
 in case that a second frequency included in the second list is same as the first frequency, configuration information for measurement on the first frequency is not included in the dedicated message, and configuration information for measurement on the second frequency is included in the system information, the result of measurement on the first frequency based on the configuration information for measurement on the second frequency included in the system information.   
     
     
         20 . The base station of  claim 17 ,
 wherein the first frequency is included in the first list and the dedicated message further includes measurement configuration information for measurement on the first frequency, and   wherein the result of measurement on the first frequency included in the first list and same as the one of the at least one frequency included in the second list comprises:   the result of measurement on the first frequency based on the measurement configuration information for measurement on the first frequency in the dedicated message even if a different measurement configuration is included for the first frequency in the system information.