Device and method for transmitting uplink control signal in wireless communication system

A method for operating a base station in a wireless communication system, comprising:

• receiving, from a terminal, capability information including information indicating whether a dynamic switching between an uplink carrier and an auxiliary uplink carrier using downlink control information (DCI) is supported or not and information indicating whether a simultaneous transmission via the uplink carrier and the auxiliary uplink carrier is supported or not;
• determining a carrier indicating mode is a carrier dynamic indicating mode based on the capability information;
• transmitting, to the terminal, information on the carrier indicating mode determined as the carrier dynamic indicating mode;
• receiving, from the terminal, information on a channel measurement for at least one carrier supported by the terminal;
• determining an indication indicating at least one of the uplink carrier and the auxiliary uplink carrier based on the information on the channel measurement;
• transmitting, to the terminal, a radio resource control (RRC) message for configuring the uplink carrier and the auxiliary uplink carrier, wherein the RRC message includes information on a first subcarrier spacing of the uplink carrier and information on a second subcarrier spacing of the auxiliary uplink carrier;
• transmitting, from the terminal, the DCI including the indication indicating one of the uplink carrier or the auxiliary uplink carrier for a transmission carrier;
• and
• receiving, from the terminal, an uplink signal via the uplink carrier or the auxiliary uplink carrier for the transmission carrier indicated by the DCI, based on a subcarrier spacing corresponding to the transmission carrier,
• wherein the subcarrier spacing corresponding to the transmission carrier is identified by the terminal based on the RRC message, and
• wherein a DCI format including information on the transmission carrier is identified by the terminal based on the carrier dynamic indicating mode and the transmitted DCI.

An apparatus of a terminal in a wireless communication system, comprising:

• a transceiver;
• and
• at least one processor operably coupled to the transceiver, and configured to:
• transmit, to a base station, capability information including information indicating whether a dynamic switching between an uplink carrier and an auxiliary uplink carrier using downlink control information (DCI) is supported or not and information indicating whether a simultaneous transmission via the uplink carrier and the auxiliary uplink carrier is supported or not;
• receive, from the base station, a radio resource control (RRC) message for configuring the uplink carrier and the auxiliary uplink carrier, wherein the RRC message includes information on a first subcarrier spacing of the uplink carrier and information on a second subcarrier spacing of the auxiliary uplink carrier;
• receive, from the base station, information on a carrier indicating mode determined based on the capability information;
• identify whether the carrier indicating mode is a carrier dynamic indicating mode;
• transmit, to the base station, information on a channel measurement for at least one carrier supported by the terminal;
• receive, from the base station, the DCI including an indication indicating at least one of the uplink carrier or the auxiliary uplink carrier for a transmission carrier, wherein the indication is determined based on the information on the channel measurement;
• identify a DCI format based on the carrier dynamic indicating mode and the received DCI;
• decode the identified DCI format including information on the transmission carrier;
• identify a subcarrier spacing corresponding to the transmission carrier, based on the RRC message;
• and
• transmit, to the base station, an uplink signal via the uplink carrier or the auxiliary uplink carrier for the transmission carrier indicated by the DCI, based on the identified subcarrier spacing corresponding to the transmission carrier.

An apparatus of a base station in a wireless communication system, comprising:

• a transceiver;
• and
• at least one processor operably coupled to the transceiver, and configured to:
• receive, from a terminal, capability information including information indicating whether a dynamic switching between an uplink carrier and an auxiliary uplink carrier using downlink control information (DCI) is supported or not and information indicating whether a simultaneous transmission via the uplink carrier and the auxiliary uplink carrier is supported or not;
• determine a carrier indicating mode is a carrier dynamic indicating mode based on the capability information;
• transmit, to the terminal, information on the carrier indicating mode determined as the carrier dynamic indicating mode;
• receive, from the terminal, information on a channel measurement for at least one carrier supported by the terminal;
• determine an indication indicating at least one of the uplink carrier and the auxiliary uplink carrier based on the information on the channel measurement;
• transmit, to the terminal, a radio resource control (RRC) message for configuring the uplink carrier and the auxiliary uplink carrier, wherein the RRC message includes information on a first subcarrier spacing of the uplink carrier and information on a second subcarrier spacing of the auxiliary uplink carrier;
• transmit, from the terminal, the DCI including the indication indicating one of the uplink carrier or the auxiliary uplink carrier for a transmission carrier;
• and
• receive, from the terminal, an uplink signal via the uplink carrier or the auxiliary uplink carrier for the transmission carrier indicated by the DCI, based on a subcarrier spacing corresponding to the transmission carrier,
• wherein the subcarrier spacing corresponding to the transmission carrier is identified by the terminal based on the RRC message, and
• wherein a DCI format including information on the transmission carrier is identified by the terminal based on the carrier dynamic indicating mode and the transmitted DCI.