Method and apparatus for performing communication in wireless communication system

Abstract

A method and apparatus in a wireless communication system are provided. The method performed by a terminal may include: receiving, from a source node, a handover command comprising mode information associated with one or more scheduling modes in a target node; based on the handover command, determining, among the one or more scheduling modes, a scheduling mode associated with one or more sidelink logical channels (SL LCHs); and transmitting, to the target node, data from the one or more SL LCHs, based on the determined scheduling mode.

What is claimed is: 
     
         1 . A method performed by a terminal in a wireless communication system, the method comprising:
 receiving, from a source node, a handover command comprising mode information associated with one or more scheduling modes in a target node;   based on the handover command, determining, among the one or more scheduling modes, a scheduling mode associated with one or more sidelink logical channels (SL LCHs); and   transmitting, to the target node, data from the one or more SL LCHs, based on the determined scheduling mode.   
     
     
         2 . The method of  claim 1 , wherein the handover command further comprises:
 exceptional resource pool information for identifying a configuration of an exceptional resource pool; and   configured grant (CG) type information associated with a configuration of a CG Type 1 SL grant for the one or more SL LCHs,   wherein the one or more scheduling modes comprises:   a first scheduling mode associated with a scheduled resource allocation; and   a second scheduling mode associated with an autonomous resource allocation.   
     
     
         3 . The method of  claim 2 , wherein determining the scheduling mode comprises:
 in case that a first SL LCH is associated with the CG Type 1 SL grant, determining a scheduling mode of the first SL LCH as the first scheduling mode.   
     
     
         4 . The method of  claim 3 , wherein transmitting of the data from the one or more SL LCHs comprises:
 transmitting, to the target node, first data from the first SL LCH based on the first scheduling mode and the CG Type 1 SL grant, until a handover is completed.   
     
     
         5 . The method of  claim 2 , wherein determining the scheduling mode comprises:
 in case that a second SL LCH is associated with the first scheduling mode, the second SL LCH is unmapped to the CG Type 1 SL grant and the exceptional resource pool is configured, determining a scheduling mode of the second SL LCH as the second scheduling mode.   
     
     
         6 . The method of  claim 5 , wherein transmitting of the data from the one or more SL LCHs comprises:
 transmitting, to the target node, second data from the second SL LCH based on the second scheduling mode and the exceptional resource pool, until a handover is completed.   
     
     
         7 . The method of  claim 2 , wherein determining the scheduling mode comprises:
 in case that a third SL LCH is associated with the first scheduling mode, the third SL LCH is unmapped to the CG Type 1 SL grant and the exceptional resource pool is not configured, determining a scheduling mode of the third SL LCH as the first scheduling mode.   
     
     
         8 . The method of  claim 7 , wherein transmitting of the data from the one or more SL LCHs comprises:
 transmitting, to the target node, third data from the third SL LCH based on the first scheduling mode and the CG Type 1 SL grant, until a handover is completed.   
     
     
         9 . The method of  claim 2 , wherein determining the scheduling mode comprises:
 in case that a fourth SL LCH is associated with the second scheduling mode and the exceptional resource pool is configured, determining a scheduling mode of the fourth SL LCH as the second scheduling mode; and   in case that a fifth SL LCH is associated with the second scheduling mode and the exceptional resource pool is not configured, determining a scheduling mode of the fifth SL LCH as the first scheduling mode.   
     
     
         10 . The method of  claim 9 , wherein transmitting of the data from the one or more SL LCHs comprises:
 transmitting, to the target node, fourth data from the fourth SL LCH based on the second scheduling mode and the exceptional resource pool, until sensing results are available; and   transmitting, to the target node, fifth data from the fifth SL LCH based on the first scheduling mode and the CG Type 1 SL grant, until the sensing results are available.   
     
     
         11 . A terminal in a wireless communication system, the terminal comprising:
 a transceiver; and   at least one processor configured to:   receive, from a source node via the transceiver, a handover command comprising mode information associated with one or more scheduling modes in a target node;   based on the handover command, determine, among the one or more scheduling modes, a scheduling mode associated with one or more sidelink logical channels (SL LCHs); and   transmit, to the target node via the transceiver, data from the one or more SL LCHs, based on the determined scheduling mode.   
     
     
         12 . The terminal of  claim 11 , wherein the handover command further comprises:
 exceptional resource pool information for identifying a configuration of an exceptional resource pool; and   configured grant (CG) type information associated with a configuration of a CG Type 1 SL grant for the one or more SL LCHs,   wherein the one or more scheduling modes comprises:   a first scheduling mode associated with a scheduled resource allocation; and   a second scheduling mode associated with an autonomous resource allocation.   
     
     
         13 . The terminal of  claim 12 , wherein the at least one processor is further configured to:
 in case that a first SL LCH is associated with the CG Type 1 SL grant, determine a scheduling mode of the first SL LCH as the first scheduling mode.   
     
     
         14 . The terminal of  claim 13 , wherein the at least one processor is further configured to:
 transmit, to the target node via the transceiver, first data from the first SL LCH based on the first scheduling mode and the CG Type 1 SL grant, until a handover is completed.   
     
     
         15 . The terminal of  claim 12 , wherein the at least one processor is further configured to:
 in case that a second SL LCH is associated with the first scheduling mode, the second SL LCH is unmapped to the CG Type 1 SL grant and the exceptional resource pool is configured, determine a scheduling mode of the second SL LCH as the second scheduling mode.   
     
     
         16 . The terminal of  claim 15 , wherein the at least one processor is further configured to:
 transmit, to the target node via the transceiver, second data from the second SL LCH based on the second scheduling mode and the exceptional resource pool, until a handover is completed.   
     
     
         17 . The terminal of  claim 12 , wherein the at least one processor is further configured to:
 in case that a third SL LCH is associated with the first scheduling mode, the third SL LCH is unmapped to the CG Type 1 SL grant and the exceptional resource pool is not configured, determine a scheduling mode of the third SL LCH as the first scheduling mode.   
     
     
         18 . The terminal of  claim 17 , wherein the at least one processor is further configured to:
 transmit, to the target node via the transceiver, third data from the third SL LCH based on the first scheduling mode and the CG Type 1 SL grant, until a handover is completed.   
     
     
         19 . The terminal of  claim 12 , wherein the at least one processor is further configured to:
 in case that a fourth SL LCH is associated with the second scheduling mode and the exceptional resource pool is configured, determine a scheduling mode of the fourth SL LCH as the second scheduling mode; and   in case that a fifth SL LCH is associated with the second scheduling mode and the exceptional resource pool is not configured, determine a scheduling mode of the fifth SL LCH as the first scheduling mode.   
     
     
         20 . The terminal of  claim 19 , wherein the at least one processor is further configured to:
 transmit, to the target node via the transceiver, fourth data from the fourth SL LCH based on the second scheduling mode and the exceptional resource pool, until sensing results are available; and   transmit, to the target node via the transceiver, fifth data from the fifth SL LCH based on the first scheduling mode and the CG Type 1 SL grant, until the sensing results are available.