Method and device for communication in wireless communication system supporting groupcast

Abstract

Disclosed is a method for communication by a user equipment (UE) in a wireless communication system supporting groupcast, including receiving at least one of configuration information or scheduling information related to at least one data reception, identifying, among groupcast data and unicast data, data to be processed first or simultaneously among a plurality of data in relation to decoding and whether resource regions for the plurality of data including the groupcast data and the unicast data scheduled based on the received information overlap, and receiving the identified data to be processed first or simultaneously through a data channel and decoding the data.

What is claimed is: 
     
         1 . A method for communication by a user equipment (UE) in a wireless communication system supporting groupcast, the method comprising:
 receiving at least one of configuration information or scheduling information related to at least one data reception;   identifying data to be processed first or simultaneously among a plurality of data in relation to decoding and whether resource regions for the plurality of data including groupcast data and unicast data scheduled based on the received information overlap; and   receiving the identified data to be processed first or simultaneously through a data channel and decoding the data.   
     
     
         2 . The method of  claim 1 ,
 wherein the groupcast data and the unicast data are scheduled so that allocated resource regions at least partially overlap in a time domain.   
     
     
         3 . The method of  claim 1 ,
 wherein in case that hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback is required for the groupcast data, the decoding includes decoding one of the groupcast data and the unicast data preferentially.   
     
     
         4 . The method of  claim 1 ,
 wherein when a size of a data region where at least one of the groupcast data and the unicast data is allocated is at least a threshold, the decoding includes decoding one of the groupcast data and the unicast data preferentially.   
     
     
         5 . The method of  claim 1 ,
 wherein the at least one of the configuration information or the scheduling information includes information indicating decoding one of the groupcast data and the unicast data preferentially.   
     
     
         6 . The method of  claim 1 ,
 wherein in case that a bandwidth part (BWP) for the groupcast data and a BWP for the unicast data differ from each other, the decoding includes decoding one of the groupcast data and the unicast data preferentially.   
     
     
         7 . The method of  claim 1 , wherein in case that the groupcast data and the unicast data are simultaneously scheduled for the UE, decoding the data includes:
 decoding one of the groupcast data and the unicast data preferentially;   decoding latest scheduled data of the groupcast data and the unicast data; or   decoding one of the groupcast data and the unicast data preferentially based on at least one of a quality-of-service (QoS) value or a priority value for scheduled data.   
     
     
         8 . The method of  claim 1 , further comprising:
 identifying whether to apply an out-of-order scheduling scheme based on the received information; and   receiving at least one of the plurality of data including the groupcast data and the unicast data scheduled based on the received information and, in case that the out-of-order scheduling scheme is applied, transmitting HARQ-ACK information for the received data in an order based on processing time.   
     
     
         9 . A user equipment (UE) in a wireless communication system supporting groupcast, the UE comprising:
 a transceiver; and   a processor configured to:   receive, through the transceiver, at least one of configuration information or scheduling information related to at least one data reception,   identify data to be processed first or simultaneously among a plurality of data in relation to decoding and whether resource regions for the plurality of data including groupcast data and unicast data scheduled based on the received information overlap, and   receive, through the transceiver, the identified data to be processed first or simultaneously through a data channel and decoding the data.   
     
     
         10 . The UE of  claim 9 ,
 wherein the groupcast data and the unicast data are scheduled so that allocated resource regions at least partially overlap in a time domain.   
     
     
         11 . The UE of  claim 9 ,
 wherein the processor is further configured to, in case that hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback is required for the groupcast data, control decoding one of the groupcast data and the unicast data preferentially.   
     
     
         12 . The UE of  claim 9 ,
 wherein the processor is further configured to, when a size of a data region where at least one of the groupcast data and the unicast data is allocated is a threshold or more, control decoding one of the groupcast data and the unicast data preferentially.   
     
     
         13 . The UE of  claim 9 ,
 wherein at least one of the configuration information and the scheduling information includes information indicating decoding one of the groupcast data and the unicast data preferentially.   
     
     
         14 . The UE of  claim 9 ,
 wherein the processor is further configured to, in case that a bandwidth part (BWP) for the groupcast data and a BWP for the unicast data differ from each other, control decoding one of the groupcast data and the unicast data preferentially.   
     
     
         15 . The UE of  claim 9 ,
 wherein the processor is further configured to, in case that the groupcast data and the unicast data are simultaneously scheduled for the UE, control:   decoding one of the groupcast data and the unicast data preferentially,   decoding latest scheduled data of the groupcast data and the unicast data, or   decoding one of the groupcast data and the unicast data preferentially based on at least one of a quality-of-service (QoS) value or a priority value for scheduled data.   
     
     
         16 . The UE of  claim 11 ,
 wherein the processor is further configured to control identifying whether to apply an out-of-order scheduling scheme based on the received information and receiving at least one of the plurality of data including the groupcast data and the unicast data scheduled based on the received information and, in case that the out-of-order scheduling scheme is applied, transmitting, through the transceiver, HARQ-ACK information for the received data in an order based on processing time.   
     
     
         17 . A method for communication by a base station in a wireless communication system supporting groupcast, the method comprising:
 transmitting at least one of configuration information or scheduling information related to a plurality of data transmission; and   transmitting a plurality of data including groupcast data and unicast data scheduled for prioritized or simultaneous processing based on the transmitted information, through a data channel.   
     
     
         18 . The method of  claim 17 , further comprising transmitting the scheduled data based on the transmitted information and, in case that an out-of-order scheduling scheme is applied, receiving, from a user equipment, hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the transmitted data in an order based on processing time. 
     
     
         19 . A base station in a wireless communication system supporting groupcast, the base station comprising:
 a transceiver; and   a processor configured to transmit, through the transceiver, at least one of configuration information or scheduling information related to a plurality of data transmission and transmit, through the transceiver, a plurality of data including groupcast data and unicast data scheduled for prioritized or simultaneous processing based on the transmitted information, through a data channel.   
     
     
         20 . The base station of  claim 19 , wherein the processor is further configured to transmit the scheduled data based on the transmitted information and, in case that an out-of-order scheduling scheme is applied, receive, through the transceiver from a user equipment, hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the transmitted data in an order based on processing time.