Dynamic scheduling for hybrid automatic repeat request transmission time interval bundling in a communication system

An integrated circuit, comprising:

• circuitry which, in operation, controls a process of a data transmitting node for transmitting data on a shared communication channel in a communication system supporting multiple hybrid automatic repeat request (HARQ) processes and configured to apply a bundling of transmission time intervals (TTI), wherein when bundling is configured, a single grant to transmit data applies to a bundle of TTIs including a predetermined number of TTIs belonging to a same HARQ process, the data transmitting including mapping the bundle of TTIs onto subframes which are physical time-domain resources, the circuitry controls the process by:
• receiving a grant to transmit the bundle of TTIs in a HARQ process, the grant including a shift indicator indicating a number of subframes smaller than a predetermined time period which is smaller or equal to a number of TTIs per the bundle of TTIs;
• and
• transmitting the bundle of TTIs in the HARQ process in a subframe which is given by the grant and which is shifted by the number of subframes indicated by the shift indicator.

An integrated circuit, comprising:

• circuitry which, in operation, controls a process of a data transmitting node for transmitting data on a shared communication channel in a communication system supporting multiple hybrid automatic repeat request (HARQ) processes and configured to apply a bundling of transmission time intervals (TTIs), wherein when bundling is configured, a single grant to transmit data applies to a bundle of TTIs including a predetermined number of TTIs belonging to a same HARQ process, the data transmitting including mapping of the TTIs onto subframes which are physical time-domain resources, the circuitry controls the process by:
• transmitting, to a data transmitting node, a grant to transmit the bundle of TTIs in a HARQ process, the grant including a shift indicator indicating a number of subframes smaller than a predetermined time period which is smaller or equal to the number of the TTIs in the bundle of TTIs;
• and
• receiving the bundle of TTIs in the HARQ process in a subframe which is given by the grant and shifted by the number of subframes indicated by the shift indicator.