Method and apparatus for configuring or activating various types of gaps 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 identifier1 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, each of the one or more uplink bandwidth part configuration includes one or more second configurations, each of the one or more second configurations includes the identifier1 and an identifier2 and a parameter indicating periodicity and offset, the identifier2 is an identifier of each of the one or more second configurations;
• 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 and a specific second configuration;
• and
• transmit to the base station to request activation of a first gap, the first MAC CE,
• wherein the specific first configuration is the first configuration corresponding to the first identifier1 and the specific second configuration is the second configuration associated with the specific first configuration.

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 identifier1 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, each of the one or more uplink bandwidth part configuration includes one or more second configurations, each of the one or more second configurations includes the identifier1 and an identifier2 and a parameter indicating periodicity and offset, the identifier2 is an identifier of each of the one or more second configurations;
• performing, by the base station, Scheduling Request reception from the terminal based on a specific first configuration and a specific second configuration;
• and
• 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,
• wherein the specific first configuration is the first configuration corresponding to the first identifier1 and the specific second configuration is the second configuration associated with the specific first configuration.