Method for configuring sidelink resources based on user equipment speed in communication system an apparatus for the same

Abstract

A sidelink communication method performed by a UE is provided. The method includes receiving from a base station a message including zone configuration information and resource pool configuration information and selecting a zone type mapped to a speed of the UE among zone types indicated by the zone configuration information. A zone identifier is determined based on configuration information of the selected zone type, the configuration information of the selected zone type being included in the zone configuration information. The sidelink communication is performed using a resource pool mapped to the zone identifier among resource pools indicated by the resource pool configuration information.

What is claimed is: 
     
         1 . A user equipment (UE), comprising:
 a processor,   wherein the processor causes the UE to:   receive a message that includes zone configuration information and resource pool configuration information from a base station;   select a zone type mapped to a speed of the UE among a plurality of zone types indicated by the zone configuration information;   determine a zone identifier based on configuration information of the selected zone type, the configuration information of the selected zone type being included in the zone configuration information;   transmit at least one of the selected zone type or the determined zone identifier to the base station; and   perform sidelink communication using a resource pool mapped to the determined zone identifier among resource pool(s) indicated by the resource pool configuration information,   wherein the plurality of zone types have different zone-sizes, and a zone-size of the selected zone type is different from a zone-size of other zone type except for the selected zone type among the plurality of zone types.   
     
     
         2 . The UE according to  claim 1 , wherein the plurality of zone types are classified into a high-zone and a low-zone, the high-zone and the low-zone have different sizes, the high-zone is selected among the plurality of zone types when the speed of the UE is equal to or greater than a speed threshold, and the low-zone is selected among the plurality of zone types when the speed of the UE is less than the speed threshold. 
     
     
         3 . The UE according to  claim 2 , wherein the zone configuration information includes the speed threshold. 
     
     
         4 . The UE according to  claim 2 , wherein the resource pool configuration information includes configuration information of resource pools for the high-zone and configuration information of resource pools for the low-zone. 
     
     
         5 . The UE according to  claim 1 , wherein the plurality of zone types are classified into a high-zone, a medium-zone, and a low-zone, the high-zone, the medium-zone, and the low-zone have different sizes, the high-zone is selected among the plurality of zone types when the speed of the UE is equal to or greater than a first speed threshold, the medium- zone is selected among the plurality of zone types when the speed of the UE is less than the first speed threshold and equal to or greater than a second speed threshold, the low-zone is selected among the plurality of zone types when the speed of the UE is less than the second speed threshold, and the first speed threshold is greater than the second speed threshold. 
     
     
         6 . The UE according to  claim 1 , wherein the message is a system information block (SIB). 
     
     
         7 . The UE according to  claim 1 , wherein the processor further causes the UE to:
 before receiving the message, transmit information regarding a position of the UE and the speed of the UE to the base station.   
     
     
         8 . A base station, comprising:
 a processor,   wherein the processor causes the base station to:   generate zone configuration information including configuration information of a plurality of zone types;   generate resource pool configuration information including configuration information of resource pools for the plurality of zone types;   transmit a message including the zone configuration information and the resource pool configuration information to a user equipment (UE); and   receive at least one of a zone type selected by the UE among the plurality of zone types or a zone identifier determined by the UE based on configuration information of the zone type from the UE,   wherein the plurality of zone types have different zone-sizes, and a zone-size of one zone type is different from a zone-size of other zone type except for the one zone type among the plurality of zone types.   
     
     
         9 . The base station according to  claim 8 , wherein the plurality of zone types are classified into a high-zone and a low-zone, the high-zone and the low-zone have different sizes, the high-zone is selected among the plurality of zone types when the speed of the UE is equal to or greater than a speed threshold, and the low-zone is selected among the plurality of zone types when the speed of the UE is less than the speed threshold. 
     
     
         10 . The base station according to  claim 9 , wherein the zone configuration information includes the speed threshold. 
     
     
         11 . The base station according to  claim 9 , wherein the resource pool configuration information includes configuration information of resource pools for the high-zone and configuration information of resource pools for the low-zone. 
     
     
         12 . The base station according to  claim 8 , wherein the plurality of zone types are classified into a high-zone, a medium-zone, and a low-zone, the high-zone, the medium-zone, and the low-zone have different sizes, the high-zone is selected among the plurality of zone types when the speed of the UE is equal to or greater than a first speed threshold, the medium-zone is selected among the plurality of zone types when the speed of the UE is less than the first speed threshold and equal to or higher than a second speed threshold, the low-zone is selected among the plurality of zone types when the speed of the UE is less than the second speed threshold, and the first speed threshold is greater than the second speed threshold. 
     
     
         13 . A method of a user equipment (UE), comprising:
 receiving a message that includes zone configuration information and resource pool configuration information from a base station;   selecting a zone type mapped to a speed of the UE among a plurality of zone types indicated by the zone configuration information;   determining a zone identifier based on configuration information of the selected zone type, the configuration information of the selected zone type being included in the zone configuration information;   transmitting at least one of the selected zone type or the determined zone identifier to the base station; and   performing sidelink communication using a resource pool mapped to the determined zone identifier among resource pool(s) indicated by the resource pool configuration information,   wherein the plurality of zone types have different zone-sizes, and a zone-size of the selected zone type is different from a zone-size of other zone type except for the selected zone type among the plurality of zone types.   
     
     
         14 . The method according to  claim 13 , wherein the plurality of zone types are classified into a high-zone and a low-zone, the high-zone and the low-zone have different sizes, the high-zone is selected among the plurality of zone types when the speed of the UE is equal to or greater than a speed threshold, and the low-zone is selected among the plurality of zone types when the speed of the UE is less than the speed threshold. 
     
     
         15 . The method according to  claim 14 , wherein the zone configuration information includes the speed threshold. 
     
     
         16 . The method according to  claim 14 , wherein the resource pool configuration information includes configuration information of resource pools for the high-zone and configuration information of resource pools for the low-zone. 
     
     
         17 . The method according to  claim 13 , wherein the plurality of zone types are classified into a high-zone, a medium-zone, and a low-zone, the high-zone, the medium-zone, and the low-zone have different sizes, the high-zone is selected among the plurality of zone types when the speed of the UE is equal to or greater than a first speed threshold, the medium- zone is selected among the plurality of zone types when the speed of the UE is less than the first speed threshold and equal to or greater than a second speed threshold, the low-zone is selected among the plurality of zone types when the speed of the UE is less than the second speed threshold, and the first speed threshold is greater than the second speed threshold. 
     
     
         18 . The method according to  claim 13 , wherein the message is a system information block (SIB). 
     
     
         19 . The method according to  claim 13 , further comprising:
 before receiving the message, transmitting information regarding a position of the UE and the speed of the UE to the base station.