Communication method and apparatus 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) message including first information configuring a medium access control (MAC) parameter for the terminal;

identifying second information indicating to the terminal whether to skip an uplink transmission, the second information being included in the first information;

receiving, from the base station, an uplink grant on a physical downlink control channel (PDCCH) addressed to a cell radio network temporary identifier (C-RNTI); and

identifying whether to skip a generation of a MAC protocol data unit (PDU) associated with the uplink grant based on the second information.

2. The method of claim 1 , wherein the generation of the MAC PDU is skipped, in case that the following are satisfied:

a MAC service data unit (SDU) for the MAC PDU does not exist; and

a MAC control element (CE) for the MAC PDU includes only a predetermined type of buffer status report (BSR).

3. The method of claim 2 , wherein the predetermined type of BSR includes a padding BSR.

4. The method of claim 3 , further comprising:

generating the MAC PDU associated with the uplink grant, in case that the generation of the MAC PDU is not skipped; and

transmitting, to the base station, the generated MAC PDU on an uplink resource scheduled based on the uplink grant.

5. A method performed by a base station in a wireless communication system, the method comprising:

transmitting, to a terminal, a radio resource control (RRC) message including first information configuring a medium access control (MAC) parameter for the terminal; and

transmitting, to the terminal, an uplink grant on a physical downlink control channel (PDCCH) addressed to a cell radio network temporary identifier (C-RNTI),

wherein the first information includes second information indicating to the terminal whether to skip an uplink transmission, and

wherein whether to skip a generation of a MAC protocol data unit (PDU) associated with the uplink grant is identified based on the second information.

6. The method of claim 5 , wherein the generation of the MAC PDU is skipped, in case that the following are satisfied:

a MAC service data unit (SDU) for the MAC PDU does not exist; and

a MAC control element (CE) for the MAC PDU includes only a predetermined type of buffer status report (BSR).

7. The method of claim 6 , wherein the predetermined type of BSR includes a padding BSR.

8. The method of claim 7 , further comprising:

receiving, from the terminal, the generated MAC PDU on an uplink resource scheduled based on the uplink grant, in case that the generation of the MAC PDU is not skipped.

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

a transceiver configured to transmit and receive a signal; and

a controller configured to:

receive, from a base station, a radio resource control (RRC) message including first information configuring a medium access control (MAC) parameter for the terminal,

identify second information indicating to the terminal whether to skip an uplink transmission, the second information being included in the first information,

receive, from the base station, an uplink grant on a physical downlink control channel (PDCCH) addressed to a cell radio network temporary identifier (C-RNTI), and

identify whether to skip a generation of a MAC protocol data unit (PDU) associated with the uplink grant based on the second information.

10. The terminal of claim 9 , wherein the generation of the MAC PDU is skipped, in case that the following are satisfied:

a MAC service data unit (SDU) for the MAC PDU does not exist; and

a MAC control element (CE) for the MAC PDU includes only a predetermined type of buffer status report (BSR).

11. The terminal of claim 10 , wherein the predetermined type of BSR includes a padding BSR.

12. The terminal of claim 11 , wherein the controller is further configured to:

generate the MAC PDU associated with, in case that the generation of the MAC PDU is not skipped, and

transmit, to the base station, the generated MAC PDU on an uplink resource scheduled based on the uplink grant.

13. A base station in a wireless communication system, the base station comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to:

transmit, to a terminal, a radio resource control (RRC) message including first information configuring a medium access control (MAC) parameter for the terminal, and

transmit, to the terminal, an uplink grant on a physical downlink control channel (PDCCH) addressed to a cell radio network temporary identifier (C-RNTI),

wherein the first information includes second information indicating to the terminal whether to skip an uplink transmission, and

wherein whether to skip a generation of a MAC protocol data unit (PDU) associated with the uplink grant is identified based on the second information.

14. The base station of claim 13 , wherein the generation of the MAC PDU is skipped, in case that the following are satisfied:

a MAC service data unit (SDU) for the MAC PDU does not exist; and

a MAC control element (CE) for the MAC PDU includes only a predetermined type of buffer status report (BSR).

15. The base station of claim 14 , wherein the predetermined type of BSR includes a padding BSR.

16. The base station claim 15 , wherein the controller is further configured to:

receive, from the terminal, the generated MAC PDU on an uplink resource scheduled based on the uplink grant, in case that the generation of the MAC PDU is not skipped.