Method and apparatus for selecting bandwidth part (bwp) for subsequent transmission in pre-configured resources based small data transmission (sdt) in a wireless communication system

A User Equipment (UE), comprising:

• a control circuit;
• a processor installed in the control circuit;
• and
• a memory installed in the control circuit and operatively coupled to the processor, wherein the processor is configured to execute a program code stored in the memory to perform operations, the operations comprising:
• receiving a first Radio Resource Control (RRC) message from a network node, wherein the first RRC message is indicative of a first uplink (UL) Bandwidth Part (BWP) of a cell;
• in response to initiation of a procedure to use a configured grant (CG) resource in RRC inactive state, performing BWP switching from a second UL BWP of the cell to the first UL BWP of the cell;
• performing, on the first UL BWP, a first UL transmission using the CG resource;
• and
• in response to completion of the procedure, performing BWP switching from the first UL BWP of the cell to the second UL BWP of the cell.

A non-transitory computer-readable medium comprising processor-executable instructions that when executed by a User Equipment (UE) cause performance of operations, the operations comprising:

• receiving a first Radio Resource Control (RRC) message from a network node, wherein the first RRC message is indicative of a first uplink (UL) Bandwidth Part (BWP) of a cell;
• in response to initiation of a procedure to use a configured grant (CG) resource in RRC inactive state, performing BWP switching from a second UL BWP of the cell to the first UL BWP of the cell;
• performing, on the first UL BWP, a first UL transmission using the CG resource;
• and
• in response to completion of the procedure, performing BWP switching from the first UL BWP of the cell to the second UL BWP of the cell.