User equipment, and communication control method

A base station comprising:

• a transmitter configured to transmit, to a communication apparatus, a radio resource control (RRC) message including information for configuring a downlink bandwidth part (BWP), an identifier indicating the downlink BWP used as an active downlink BWP, and an identifier indicating an uplink BWP used as an active uplink BWP, the information for configuring the downlink BWP including information indicating a dedicated parameter used for the active downlink BWP and information indicating an absolute radio frequency channel number (ARFCN) of a synchronization signal and a physical broadcast channel block (SSB) within the active downlink BWP, wherein the identifier indicating the downlink BWP indicates the downlink BWP to be activated upon performing configuration of the downlink BWP;
• and
• a receiver configured to receive, from the communication apparatus, an uplink signal transmitted on the active uplink BWP with transmission power of uplink transmission calculated by using a path loss estimation value calculated based on received power relative to the SSB, in a case where a transmission of the SSB within the active downlink BWP is indicated by using the information indicating the ARFCN of the SSB.

A communication method executed by a communication apparatus comprising:

• receiving, from a base station, a radio resource control (RRC) message including information for configuring a downlink bandwidth part (BWP), an identifier indicating the downlink BWP used as an active downlink BWP, and an identifier indicating an uplink BWP used as an active uplink BWP, the information for configuring the downlink BWP including information indicating a dedicated parameter used for the active downlink BWP, and information indicating an absolute radio frequency channel number (ARFCN) of a synchronization signal and a physical broadcast channel block (SSB) within the active downlink BWP, wherein the identifier indicating the downlink BWP indicates the downlink BWP to be activated upon performing configuration of the downlink BWP;
• and
• calculating, by using a path loss estimation value, transmission power of uplink transmission on the active uplink BWP, the path loss estimation value being calculated based on received power relative to the SSB, in a case where a transmission of the SSB within the active downlink BWP is indicated by using the information indicating the ARFCN of the SSB.