Patent ID: 8792462

Claim:
A Radio Base Station, RBS, for supporting uplink transmissions from a User Equipment, UE, using Transmission Time Interval, TTI, bundling, the RBS being arranged for: transmitting a first signal to the UE, requesting the UE to toggle a TTI bundling mode of the UE, receiving a second signal from the UE, indicating that the UE has successfully toggled the TTI bundling mode of the UE, and during a time interval between transmitting the first signal and receiving the second signal: scheduling uplink transmissions from the UE as TTI bundling transmissions, decoding the uplink transmissions received from the UE at time instances for both normal transmissions and the TTI bundling transmissions, and transmitting acknowledgement, ACK, signals to the UE via Physical Hybrid Automatic Repeat Request Indicator Channel, PHICH, at time instances for both normal transmissions and the TTI bundling transmissions.