Method and apparatus for processing mac control information in wireless communication system

A method performed by a terminal of a wireless communication system, the method comprising:

• receiving, from a base station, a first medium access control (MAC) control element (CE) for indicating activation or deactivation of packet data convergence protocol (PDCP) duplication for one or more data radio bearers (DRBs);
• and
• determining whether to activate or deactivate the PDCP duplication for the one or more DRBs, based on a value of bits included in the first MAC CE,
• wherein, in case that a DRB is configured with N unacknowledged mode (UM) radio link control (RLC) entities for a same direction, 2*N UM RLC entities including N UM RLC entities for each direction, or N acknowledged mode (AM) RLC entities, the first MAC CE is not used, and
• wherein N is an integer satisfying 2<N<=4.

A method performed by a base station of a wireless communication system, the method comprising:

• determining whether to activate or deactivate packet data convergence protocol (PDCP) duplication for one or more data radio bearers (DRBs) with respect to a terminal;
• and
• transmitting, to the terminal, a first medium access control (MAC) control element (CE) for indicating activation or deactivation of the PDCP duplication for the one or more DRBs,
• wherein whether to activate or deactivate the PDCP duplication for the one or more DRBs is based on a value of bits included in the first MAC CE,
• wherein, in case that a DRB is configured with N unacknowledged mode (UM) radio link control (RLC) entities for a same direction, 2*N UM RLC entities including N UM RLC entities for each direction, or N acknowledged mode (AM) RLC entities, the first MAC CE is not used, and
• wherein N is an integer satisfying 2<N <=4.

A terminal of a wireless communication system, the terminal comprising:

• a transceiver;
• and
• a controller connected to the transceiver,
• wherein the controller is configured to:
• receive, from a base station, a first medium access control (MAC) control element (CE) for indicating activation or deactivation of packet data convergence protocol (PDCP) duplication for one or more data radio bearers (DRBs);
• and
• determine whether to activate or deactivate the PDCP duplication for the one or more DRBs, based on a value of bits included in the first MAC CE, and
• wherein, in case that a DRB is configured with N unacknowledged mode (UM) radio link control (RLC) entities for a same direction, 2*N UM RLC entities including N UM RLC entities for each direction, or N acknowledged mode (AM) RLC entities, the first MAC CE is not used, and
• wherein N is an integer satisfying 2<N <=4.

A base station of a wireless communication system, the base station comprising:

• a transceiver;
• and
• a controller connected to the transceiver,
• wherein the controller is configured to:
• determine whether to activate or deactivate packet data convergence protocol (PDCP) duplication for one or more data radio bearers (DRBs) with respect to a terminal;
• and
• transmit, to the terminal, a first medium access control (MAC) control element (CE) for indicating activation or deactivation of the PDCP duplication for the one or more DRBs,
• wherein whether to activate or deactivate the PDCP duplication for the one or more DRBs is based on a value of bits included in the first MAC CE,
• wherein, in case that a DRB is configured with N unacknowledged mode (UM) radio link control (RLC) entities for a same direction, 2*N UM RLC entities including N UM RLC entities for each direction, or N acknowledged mode (AM) RLC entities, the first MAC CE is not used, and
• wherein N is an integer satisfying 2<N <=4.