Method and apparatus for performing repetitive transmission of information in time division duplex based cell in wireless communication system

Abstract

Methods and apparatuses are provided in a wireless communication system in which DCI is received from a base station and includes a subband indicator indicating a subband among at least one subband configured for the terminal as an active subband and information indicating at least one frequency resource allocated for a PDSCH within the active subband. The active subband is identified based on the subband indicator. The PDSCH is received from the base station in the active subband based on the information. A size of the DCI is configured based on a size of the active subband.

What is claimed is: 
     
         1 . A method performed by a terminal in a wireless communication system, the method comprising:
 receiving, from a base station, downlink control information (DCI) including a subband indicator indicating a subband among at least one subband configured for the terminal as an active subband and information indicating at least one frequency resource allocated for a physical downlink shared channel (PDSCH) within the active subband;   identifying the active subband based on the subband indicator; and   receiving, from the base station, the PDSCH in the active subband based on the information,   wherein a size of the DCI is configured based on a size of the active subband.   
     
     
         2 . The method of  claim 1 , further comprising:
 receiving, from the base station, another DCI including another subband indicator indicating another subband among the at least one subband as the active subband; and   receiving, from the base station, another PDSCH in the another subband based on a predetermined time delay required for active subband change in the terminal.   
     
     
         3 . The method of  claim 2 , wherein the predetermined time delay is determined based on a predetermined value that is set for the terminal. 
     
     
         4 . The method of  claim 2 , wherein further comprising:
 receiving, from the base station, another information associated with the predetermined time delay.   
     
     
         5 . A method performed by a base station in a wireless communication system, the method comprising:
 configuring downlink control information (DCI) including a subband indicator indicating a subband among at least one subband configured for a terminal as an active subband and information indicating at least one frequency resource allocated for physical downlink shared channel (PDSCH) within the active subband;   transmitting, to the terminal, the configured DCI; and   transmitting, to the terminal, the PDSCH in the active subband based on the information,   wherein a size of the DCI is configured based on a size of the active subband.   
     
     
         6 . The method of  claim 5 , further comprising:
 transmitting, to the terminal, another DCI including another subband indicator indicating another subband among the at least one subband as the active subband; and   transmitting, to the terminal, another PDSCH in the another subband based on a predetermined time delay required for active subband change in the terminal.   
     
     
         7 . The method of  claim 6 , wherein the predetermined time delay is determined based on a predetermined value that is set for the terminal. 
     
     
         8 . The method of  claim 6 , further comprising:
 transmitting, to the terminal, another information associated with the predetermined time delay.   
     
     
         9 . A terminal in a wireless communication system, the terminal comprising:
 a transceiver; and   at least one processor configured to:
 receive, from a base station, downlink control information (DCI) including a subband indicator indicating a subband among at least one subband configured for the terminal as an active subband and information indicating at least one frequency resource allocated for physical downlink shared channel (PDSCH) within the active subband; 
 identify the active subband based on the subband indicator; and 
 receive, from the base station, the PDSCH in the active subband based on the information, 
 wherein a size of the DCI is configured based on a size of the active subband. 
   
     
     
         10 . The terminal of  claim 9 , wherein the at least one processor is further configured to:
 receive, from the base station, another DCI including another subband indicator indicating another subband among the at least one subband as the active subband; and   receive, from the base station, another PDSCH in the another subband based on a predetermined time delay required for active subband change in the terminal.   
     
     
         11 . The terminal of  claim 10 , wherein the predetermined time delay is determined based on a predetermined value that is set for the terminal. 
     
     
         12 . The terminal of  claim 10 , wherein at least one processor is further configured to:
 receive, from the base station, another information associated with the predetermined time delay.   
     
     
         13 . A base station in a wireless communication system, the base station comprising:
 a transceiver; and   at least one processor configured to:
 configure downlink control information (DCI) including a subband indicator indicating a subband among at least one subband configured for a terminal as an active subband and information indicating at least one frequency resource allocated for a physical downlink shared channel (PDSCH) within the active subband; 
 transmit, to the terminal, the configured DCI; and 
 transmit, to the terminal, the PDSCH in the active subband based on the information, 
 wherein a size of the DCI is configured based on the size of the active subband. 
   
     
     
         14 . The base station of  claim 13 , wherein the at least one processor is further configured to:
 transmit, to the terminal, another DCI including another subband indicator indicating another subband among the at least one subband as the active subband; and   transmit, to the terminal, another PDSCH in the another subband based on a predetermined time delay required for active subband change in the terminal.   
     
     
         15 . The base station of  claim 14 , wherein the predetermined time delay is determined based on a predetermined value that is set for the terminal. 
     
     
         16 . The base station of  claim 14 , wherein the at least one processor is further configured to:
 transmit, to the terminal, another information associated with the predetermined time delay.