Method and apparatus for setting discontinuous reception value in wireless communication system

1. A method performed by a terminal in a wireless communication system, the method comprising:

receiving, from a base station, a radio resource control (RRC) release message including suspension configuration for switching to an RRC inactive state, wherein the suspension configuration includes a first radio access network (RAN) paging cycle;

in case that the suspension configuration further includes a second RAN paging cycle different from the first RAN paging cycle, identifying whether a UE-specific discontinuous reception (DRX) cycle is received from an access and mobility management function (AMF);

determining a DRX cycle of the terminal among the second RAN paging cycle or the UE-specific DRX cycle based on a result of the identifying; and

performing monitoring based on the determined DRX cycle to receive a paging message.

2. The method of claim 1 , wherein

the second RAN paging cycle is greater than one of: 5120 ms or 10240 ms.

3. The method of claim 2 , wherein the determining the DRX cycle of the terminal among the second RAN paging cycle or the UE-specific DRX cycle based on the result of the identifying comprises:

in case that the UE-specific DRX cycle is received from the AMF, determining a smaller value of the second RAN paging cycle and the UE-specific DRX cycle as the DRX cycle of the terminal.

4. The method of claim 2 , wherein the determining of the DRX cycle of the terminal among the second RAN paging cycle or the UE-specific DRX cycle based on the result of the identifying comprises:

in case that the UE-specific DRX cycle is received from the AMF, and the UE-specific DRX cycle is one of 5120 ms or 10240 ms, determining a smaller value of the second RAN paging cycle and the UE-specific DRX cycle as the DRX cycle of the terminal.

5. The method of claim 2 , wherein the determining of the DRX cycle of the terminal among the second RAN paging cycle or the UE-specific DRX cycle based on the result of the identifying comprises:

in case that the UE-specific DRX cycle is not received from the AMF, determining the second RAN paging cycle as the DRX cycle of the terminal.

6. The method of claim 2 , wherein the determining of the DRX cycle of the terminal among the second RAN paging cycle or the UE-specific DRX cycle based on the result of the identifying comprises:

determining the second RAN paging cycle as the DRX cycle of the terminal, regardless of whether the UE-specific DRX cycle is received from the AMF or not.

7. The method of claim 2 , further comprising:

receiving, from the base station, system information including a default paging cycle,

wherein the determining of the DRX cycle of the terminal among the second RAN paging cycle or the UE-specific DRX cycle based on the result of the identifying comprises:

in case that the UE-specific DRX cycle is received from the AMF, and the UE-specific DRX cycle is one of 320 ms, 640 ms, 1280 ms or 2560 ms, determining a smaller value of the default paging cycle and the UE-specific DRX cycle as the DRX cycle of the terminal.

8. A terminal in a wireless communication system, the terminal comprising:

a transceiver; and

at least one processor configured to:

receive via the transceiver, from a base station, a RRC (radio resource control) release message including suspension configuration for switching to RRC inactive state, wherein the suspension configuration includes a first RAN (radio access network) paging cycle,

in case that the suspension configuration further includes a second RAN paging cycle different from the first RAN paging cycle, identify whether a UE-specific discontinuous reception (DRX) cycle is received from an access and mobility management function (AMF),

determine a DRX cycle of the terminal from among at least one of the second RAN paging cycle or the UE-specific DRX cycle based on a result of the identifying, and

perform a monitoring based on the determined DRX cycle to receive a paging message.

9. The terminal of claim 8 , wherein:

the second DRX cycle is equal to or greater than one of 5120 ms or 10240 ms.

10. The terminal of claim 9 , wherein the at least one processor is further configured to:

in case that the UE-specific DRX cycle is received from the AMF, determine a smaller value of the second RAN paging cycle and the UE-specific DRX cycle as the DRX cycle of the terminal.

11. The terminal of claim 9 , wherein the at least one processor is further configured to:

in case that the UE-specific DRX cycle is received from the AMF, and the UE-specific DRX cycle is one of 5120 ms or 10240 ms, determine a smaller value of the second RAN paging cycle and the UE-specific DRX cycle as the DRX cycle of the terminal.

12. The terminal of claim 9 , wherein the at least one processor is further configured to:

in case that the UE-specific DRX cycle is not received from the AMF, determine the second RAN paging cycle as the DRX cycle of the terminal.

13. The terminal of claim 9 , wherein the at least one processor is further configured to:

determine the second RAN paging cycle as the DRX cycle of the terminal, regardless of whether the UE-specific DRX cycle is received from the AMF or not.

14. The terminal of claim 9 , wherein the at least one processor is further configured to:

receive via the transceiver, from the base station, system information including a default paging cycle, and

in case that the UE-specific DRX cycle is received from the AMF, and the UE-specific DRX cycle is one of 320 ms, 640 ms, 1280 ms or 2560 ms, determine a smaller value of the default paging cycle and the UE-specific DRX cycle as the DRX cycle of the terminal.