Method and apparatus for performing user equipment triggered semi-persistent scheduling activation in wireless communication system

Abstract

A user equipment (UE) receives a SPS resource configuration from an eNodeB (eNB), and transmits information related to a semi-persistent scheduling (SPS) activation for a specific logical channel to the eNB. The information may include timing information for the specific logical channel which indicates when a SPS resource for the specific logical channel should be activated. The specific logical channel may correspond to a vehicle-to-everything (V2X) communication.

What is claimed is: 
     
         1 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
 receiving, from a network, a radio resource control (RRC) release message comprising a resource configuration including i) information for at least one periodic uplink resource and ii) information for a validity duration during which a data transmission using the at least one periodic uplink resource is valid;   suspending one or more radio bearers;   resuming the one or more suspended radio bearers for the data transmission; and   performing the data transmission using the at least one periodic resource to the network during the validity duration.   
     
     
         2 . The method of  claim 1 , further comprising:
 transmitting, to the network while the UE is in a connected mode, a request message for requesting periodic scheduling of uplink resources,   wherein the request message comprises timing information for the at least one periodic uplink resource.   
     
     
         3 . The method of  claim 1 , further comprising:
 storing the resource configuration to be maintained after receiving the RRC release message.   
     
     
         4 . The method of  claim 1 , wherein the at least one periodic uplink resource is valid at a specific cell. 
     
     
         5 . The method of  claim 1 , wherein the RRC release message further comprises an interval of the at least one periodic uplink resource and a radio network temporary identifier (RNTI) related to the at least one periodic uplink resource. 
     
     
         6 . The method of  claim 1 , wherein the RRC release message further comprises a physical uplink control channel (PUCCH) configuration. 
     
     
         7 . The method of  claim 1 , wherein the one or more radio bearers are related to a specific logical channel, and
 wherein the at least one periodic uplink resource is used for data of the specific logical channel configured by the network.   
     
     
         8 . The method of  claim 7 , wherein a buffer status report is transmitted via a random access procedure to inform the network about an amount of uplink data available for transmission over the specific logical channel after receiving the RRC release message. 
     
     
         9 . The method of  claim 1 , wherein the resource configuration further comprises information informing a specific cell for which the at least one periodic uplink resource is valid. 
     
     
         10 . The method of  claim 1 , wherein the UE is in communication with at least one of a mobile device, a network or autonomous vehicles other than the UE. 
     
     
         11 . A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:
 at least one transceiver;   at least processor; and   at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:   receiving, from a network, a radio resource control (RRC) release message comprising a resource configuration including i) information for at least one periodic uplink resource and ii) information for a validity duration during which a data transmission using the at least one periodic uplink resource is valid;   suspending one or more radio bearers;   resuming the one or more suspended radio bearers for the data transmission; and   performing the data transmission using the at least one periodic resource to the network during the validity duration.   
     
     
         12 . The UE of  claim 11 , wherein the operations further comprises:
 transmitting, to the network while the UE is in a connected mode, a request message for requesting periodic scheduling of uplink resources,   wherein the request message comprises timing information for the at least one periodic uplink resource.   
     
     
         13 . The UE of  claim 11 , wherein the operations further comprises:
 storing the resource configuration to be maintained after receiving the RRC release message.   
     
     
         14 . The UE of  claim 11 , wherein the at least one periodic uplink resource is valid at a specific cell. 
     
     
         15 . The UE of  claim 11 , wherein the RRC release message further comprises an interval of the at least one periodic uplink resource and a radio network temporary identifier (RNTI) related to the at least one periodic uplink resource. 
     
     
         16 . The UE of  claim 11 , wherein the RRC release message further comprises a physical uplink control channel (PUCCH) configuration. 
     
     
         17 . The UE of  claim 11 , wherein the one or more radio bearers are related to a specific logical channel, and
 wherein the at least one periodic uplink resource is used for data of the specific logical channel configured by the network.   
     
     
         18 . The UE of  claim 17 , wherein a buffer status report is transmitted via a random access procedure to inform the network about an amount of uplink data available for transmission over the specific logical channel after receiving the RRC release message. 
     
     
         19 . The UE of  claim 11 , wherein the resource configuration further comprises information informing a specific cell for which the at least one periodic uplink resource is valid. 
     
     
         20 . At least one computer readable medium (CRM) storing instructions that, based on being executed by at least one processor, perform operations comprising:
 receiving, from a network, a radio resource control (RRC) release message comprising a resource configuration including i) information for at least one periodic uplink resource and ii) information for a validity duration during which a data transmission using the at least one periodic uplink resource is valid;   suspending one or more radio bearers;   resuming the one or more suspended radio bearers for the data transmission; and   performing the data transmission using the at least one periodic resource to the network during the validity duration.