Method and apparatus for allocating and signaling ack/nack resources in a wireless communication system

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

• determining whether a scheduling type of a downlink data channel is persistent or non-persistent;
• transmitting, to a user equipment, data on the downlink data channel based on the determination;
• in case that the scheduling type is non-persistent, receiving, from the user equipment, acknowledgement/negative acknowledgement (Ack/Nack) information for the data on a resource which is determined based on a first Ack/Nack resource allocation scheme;
• in case that the scheduling type is persistent and the data is initial persistent data, receiving, from the user equipment, Ack/Nack information for the data on a resource which is determined based on the first Ack/Nack resource allocation scheme;
• and
• in case that the scheduling type is persistent and the data is persistent data following the initial persistent data, receiving, from the user equipment, Ack/Nack information for the data on a resource determined based on a second Ack/Nack resource allocation scheme.

A user equipment in a wireless communication system, the user equipment comprising:

• a transceiver, and
• a controller configured to:
• receive, from a base station, data on a downlink data channel,
• determine whether a scheduling type of the downlink data channel is persistent or non-persistent,
• in case that the scheduling type is non-persistent, transmit, to the base station, acknowledgement/negative acknowledgement (Ack/Nack) information for the data on a resource which is determined based on a first Ack/Nack resource allocation scheme,
• in case that the scheduling type is persistent and the data is initial persistent data, transmit, to the base station, Ack/Nack information for the data on a resource which is determined based on the first Ack/Nack resource allocation scheme, and
• in case that the scheduling type is persistent and the data is persistent data following the initial persistent data, transmit, to the base station, Ack/Nack information for the data on a resource determined based on a second Ack/Nack resource allocation scheme.

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

• a transceiver;
• and
• a controller configured to:
• determine whether a scheduling type of a downlink data channel is persistent or non-persistent,
• transmit, to a user equipment, data on the downlink data channel based on the determination,
• in case that the scheduling type is non-persistent, receive, from the user equipment, acknowledgement/negative acknowledgement (Ack/Nack) information for the data on a resource which is determined based on a first Ack/Nack resource allocation scheme,
• in case that the scheduling type is persistent and the data is initial persistent data, receive, from the user equipment, Ack/Nack information for the data on a resource which is determined based on the first Ack/Nack resource allocation scheme, and
• in case that the scheduling type is persistent and the data is persistent data following the initial persistent data, receive, from the user equipment, Ack/Nack information for the data on a resource determined based on a second Ack/Nack resource allocation scheme.