Method and apparatus for repeater beam configuration in wireless communication system

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

• transmitting, to a network-controlled repeater (NCR) via radio resource control information (RRC) message, configuration of one or more sets of forwarding resources for an access link;
• transmitting, to the NCR, medium access control control element (MAC CE) indicating a set of forwarding resources among the one or more sets of forwarding resources;
• and
• receiving a physical uplink control channel (PUCCH) including hybrid automatic repeat request acknowledgement (HARQ-ACK) information associated with the MAC CE in a slot,
• wherein the set of forwarding resources comprises at least one forwarding resource,
• wherein each of the at least one forwarding resource is associated with a time resource and a beam index,
• wherein the MAC CE includes a bit field indicating activation or deactivation of the set of forwarding resources, and
• wherein the set of forwarding resources is activated or deactivated based on a first slot that is after 3 ms from the slot where the PUCCH including the HARQ-ACK information associated with the MAC CE is received.

A network-controlled repeater (NCR) in a communication system, the NCR comprising:

• a transceiver;
• and
• one or more processors communicatively coupled to the transceiver and configured to:
• receive, from a base station via radio resource control information (RRC) message, configuration of one or more sets of forwarding resources for an access link,
• receive, from the base station, medium access control control element (MAC CE) indicating a set of forwarding resources among the one or more sets of forwarding resources, and
• transmit a physical uplink control channel (PUCCH) including hybrid automatic repeat request acknowledgement (HARQ-ACK) information associated with the MAC CE in a slot,
• wherein the set of forwarding resources comprises at least one forwarding resource,
• wherein each of the at least one forwarding resource is associated with a time resource and a beam index,
• wherein the MAC CE includes a bit field indicating activation or deactivation of the set of forwarding resources, and
• wherein the set of forwarding resources is activated or deactivated based on a first slot that is after 3 ms from the slot where the PUCCH including the HARQ-ACK information associated with the MAC CE is transmitted.

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

• a transceiver;
• and
• one or more processors communicatively coupled to the transceiver and configured to:
• transmit, to a network-controlled repeater (NCR) via radio resource control information (RRC) message, configuration of one or more sets of forwarding resources for an access link,
• transmit, to the NCR, medium access control control element (MAC CE) indicating a set of forwarding resources among the one or more sets of forwarding resources, and
• receive a physical uplink control channel (PUCCH) including hybrid automatic repeat request acknowledgement (HARQ-ACK) information associated with the MAC CE in a slot,
• wherein the set of forwarding resources comprises at least one forwarding resource,
• wherein each of the at least one forwarding resource is associated with a time resource and a beam index,
• wherein the MAC CE includes a bit field indicating activation or deactivation of the set of forwarding resources, and
• wherein the set of forwarding resources is activated or deactivated based on a first slot that is after 3 ms from the slot where the PUCCH including the HARQ-ACK information associated with the MAC CE is received.