Method for transmitting and receiving SRS and communication device therefor

A method of receiving a sounding reference signal (SRS) by a base station (BS), the method comprising:

• receiving, from a user equipment (UE), UE capability information for transmission of the SRS;
• configuring first information for configuring an SRS bandwidth and second information on an SRS frequency start position for transmission of the SRS based on the UE capability information,
• wherein the SRS bandwidth is determined based on a combination of two parameters in a predefined table for configuring the SRS bandwidth,
• wherein a first parameter of the two parameters is an index representing a row of the predefined table, a second parameter of the two parameters has a value among {0, 1, 2, 3}, and the first parameter is determined based on a number of SRS symbols configured in one slot, and
• wherein the first information includes information representing the two parameters;
• transmitting, to the UE, the first and second information;
• and
• receiving, from the UE, the SRS with intra-slot frequency hopping based on the first and second information,
• wherein the UE capability information includes information on a bandwidth for SRS frequency hopping,
• wherein the bandwidth for the SRS frequency hopping corresponds to a partial band among a plurality of partial bands included in a bandwidth part (BWP) configured for the UE, and the combination of the two parameters determined based on the UE capability information represents the partial band.

A user equipment (UE) for transmitting a sounding reference signal (SRS), the UE comprising:

• a transmitter configured to transmit, to a base station (BS), UE capability information for transmission of the SRS;
• a receiver configured to receive, from the BS, first information for configuring an SRS bandwidth and second information on an SRS frequency start position for transmission of the SRS
• wherein the SRS bandwidth is determined based on a combination of two parameters in a predefined table for configuring the SRS bandwidth,
• wherein a first parameter of the two parameters is an index representing a row of the predefined table, a second parameter of the two parameters has a value among {0, 1, 2, 3}, and the first parameter is determined based on a number of SRS symbols configured in one slot, and
• wherein the first information includes information representing the two parameters;
• and
• a processor configured to control the transmitter to transmit, to the BS, the SRS with intra-slot frequency hopping based on the first and second information,
• wherein the UE capability information includes information on a bandwidth for SRS frequency hopping,
• wherein the bandwidth for the SRS frequency hopping corresponds to a partial band among a plurality of partial bands included in a bandwidth part (BWP) configured for the UE, and the combination of the two parameters determined based on the UE capability information represents the partial band.

A base station (BS) for receiving a sounding reference signal (SRS), the BS comprising:

• a receiver configured to receive, from a user equipment (UE), UE capability information for transmission of the SRS;
• a processor configured to configure first information for configuring an SRS bandwidth configuration and second information on an SRS frequency start position for transmission of the SRS based on the UE capability information,
• wherein the SRS bandwidth is determined based on a combination of two parameters in a predefined table for configuring the SRS bandwidth,
• wherein a first parameter of the two parameters is an index representing a row of the predefined table, a second parameter of the two parameters has a value among {0, 1, 2, 3}, and the first parameter is determined based on a number of SRS symbols configured in one slot, and
• wherein the first information includes information representing the two parameters;
• and
• a transmitter configured to transmit, to the UE, the first and second information,
• wherein the processor is configured to control the receiver to receive, from the UE, the SRS with intra-slot frequency hopping based on the first and second information, and
• wherein the UE capability information includes information on a bandwidth for SRS frequency hopping,
• wherein the bandwidth for the SRS frequency hopping corresponds to a partial band among a plurality of partial bands included in a bandwidth part (BWP) configured for the UE, and the combination of the two parameters determined based on the UE capability information represents the partial band.