Method and apparatus for indicating semi-persistent sounding reference signal as reference signal of neighboring cell in next-generation mobile communication system

A terminal comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• receive information for a sounding reference signal (SRS) configuration,
• receive a medium access control (MAC) control element (CE) for activating a semi-persistent (SP) SRS, and
• transmit an SRS on a first cell based on the information for the SRS configuration and the MAC CE for activating the SP SRS,
• wherein the MAC CE for activating the SP SRS includes an indicator for indicating whether serving cell information and bandwidth part (BWP) information for a reference signal associated with spatial relationship are present, and
• wherein the serving cell information indicates an identity of a second cell on which a resource used for spatial relationship derivation for an SRS resource of the SRS is located.

A method by a base station, the method comprising:

• transmitting, to a terminal, information for a sounding reference signal (SRS) configuration;
• transmitting, to the terminal, a medium access control (MAC) control element (CE) for activating a semi-persistent (SP) SRS;
• and
• receiving, from the terminal, an SRS on a first cell based on the information for the SRS configuration and the MAC CE for activating the SP SRS,
• wherein the MAC CE for activating the SP SRS includes an indicator for indicating whether serving cell information and bandwidth part (BWP) information for a reference signal associated with spatial relationship are present, and
• wherein the serving cell information indicates an identity of a second cell on which a resource used for spatial relationship derivation for an SRS resource of the SRS is located.

A base station comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• transmit, to a terminal, information for a sounding reference signal (SRS) configuration,
• transmit, to the terminal, a medium access control (MAC) control element (CE) for activating a semi-persistent (SP) SRS, and
• receive, from the terminal, an SRS on a first cell based on the information for the SRS configuration and the MAC CE for activating the SP SRS,
• wherein the MAC CE for activating the SP SRS includes an indicator for indicating whether serving cell information and bandwidth part (BWP) information for a reference signal associated with spatial relationship are present, and
• wherein the serving cell information indicates an identity of a second cell on which a resource used for spatial relationship derivation for an SRS resource of the SRS is located.