Patent ID: 8370696
Filing Date: 2013-02-05
Classification: H04L

Abstract:
1. A method in a mobile terminal wirelessly connectable to a radio base station of a mobile telecommunication network that supports at least two Hybrid Automatic Repeat Request (HARQ) operation modes, of which the first HARQ operation mode uses a single Transmission Time Interval (TTI) for transmissions and retransmissions and where the timing relationship between transmissions and retransmissions is pre-determined, said method comprising the steps of: transmitting information according to the second HARQ operation mode relating to a first HARQ process, by using a first predetermined number of transmission time intervals (TTIs) comprising at least a first TTI and a second TTI, to the radio base station, wherein a redundancy version of the first HARQ process is sent in each TTI; receiving an indication that the transmitted information was not decoded correctly at the radio base station; and retransmitting the information according to the second HARQ operation mode relating to the first HARQ process, by using a second predetermined number of TTIs, wherein the retransmission begins at least at a second available retransmission occurrence according to the first HARQ operation mode, subsequent to the first TTI.