Method and apparatus for performing scheduling request for gap activation in wireless communication system

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

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to control the transceiver to:
• receive from a base station a RRCReconfiguration, the RRCReconfiguration includes one or more gap configuration and a MAC-CellGroupConfig and one or more uplink bandwidth part configuration, each of the one or more gap configuration includes an identifier of the gap, the MAC-CellGroupConfig includes a first field and one or more first configuration, each of the one or more first configuration includes an identifier1 and a value for a prohibit timer and an integer for a counter,
• trigger a Scheduling Request for a first Medium Access Control (MAC) Control Element (CE) if the first MAC CE has been triggered and not cancelled and if uplink shared channel resources are not available for a new transmission;
• perform Scheduling Request transmission based on a specific first configuration, the specific first configuration is indicated by the first field, the first field includes an integer equal to a first identifier1, the first identifier1 is the identifier1 of the first configuration;
• transmit to the base station to request activation of a first gap, the first MAC CE;
• and
• receive from the base station a second MAC CE, the second MAC CE includes a fourth field and a fifth field, the fourth field indicates activation or deactivation of a second gap, the fifth field includes a value corresponding to an identifier of the second gap.

A method by a base station, the method comprising:

• transmitting, by the base station to a terminal, a RRCReconfiguration, the RRCReconfiguration includes one or more gap configuration and a MAC-CellGroupConfig and one or more uplink bandwidth part configuration, each of the one or more gap configuration includes an identifier of the gap, the MAC-CellGroupConfig includes a first field and one or more first configuration, each of the one or more first configuration includes an identifier1 and a value for a prohibit timer and an integer for a counter;
• performing, by the base station, Scheduling Request reception based on a specific first configuration, the specific first configuration is indicated by the first field, the first field includes an integer equal to a first identifier1, the first identifier1 is the identifier1 of the first configuration;
• receiving, by the base station from the terminal, a first Medium Access Control (MAC) Control Element (CE) related to activation request of a first gap,
• receiving, by the base station from the terminal, a second MAC CE, the second MAC CE includes a fourth field and a fifth field, the fourth field indicates activation or deactivation of a second gap, the fifth field includes a value corresponding to an identifier of the second gap.