Apparatus and method to support ultra-wide bandwidth in fifth generation (5G) new radio

A method of a base station in a communication system, the method comprising:

• transmitting, to a terminal, a first message comprising configuration information related to a list of at least one bandwidth part;
• and
• transmitting, to the terminal, a second message for indicating a second active bandwidth part of the list of the at least one bandwidth part,
• wherein the configuration information comprises resource information of the at least one bandwidth part and a subcarrier spacing for the at least one bandwidth part, and
• wherein a first bandwidth part of the list of the at least one bandwidth part identified and accessed based on the configuration information is switched to the second active bandwidth part according to the second message.

A terminal in a communication system, the terminal comprising:

• a transceiver configured to transmit and receive signals;
• and
• a controller configured to:
• receive, from a base station, a first message comprising configuration information related to a list of at least one bandwidth part,
• identify and access a first bandwidth part of the list of the at least one bandwidth part based on the configuration information,
• receive, from the base station, a second message for indicating a second active bandwidth part of the list of the at least one bandwidth part, and
• switch from the first bandwidth part to the second active bandwidth part according to the second message,
• wherein the configuration information comprises resource information of the at least one bandwidth part and a subcarrier spacing for the at least one bandwidth part.

A base station in a communication system, the base station comprising:

• a transceiver configured to transmit and receive signals;
• and
• a controller configured to:
• transmit, to a terminal, a first message comprising configuration information related to a list of at least one bandwidth part, and
• transmit, to the terminal, a second message for indicating a second active bandwidth part of the list of the at least one bandwidth part,
• wherein the configuration information comprises resource information of the at least one bandwidth part and a subcarrier spacing for the at least one bandwidth part, and
• wherein a first bandwidth part of the list of the at least one bandwidth part identified and accessed based on the configuration information is switched to the second active bandwidth part according to the second message.