Method and arrangement in a telecommunication system with signalling of assigned data packets in a bundling window

A method for receiving a data packet from a base station at a mobile terminal, wherein the base station uses a bundling window for transmitting data packets, and wherein the bundling window comprises a number of data packets, transmitted or to be transmitted to the mobile terminal, the method comprising the steps of:

• receiving in a first subframe, a signal from the base station, the signal comprising a downlink assignment of a first data packet of the bundling window, wherein the downlink assignment comprises information about a minimum total number of the data packets within the bundling window that are scheduled to be transmitted to the mobile terminal;
• obtaining the information about the minimum total number of the data packets by decoding the first subframe;
• confirming for the base station the data packets received within the bundling window;
• and
• based on the information, establishing whether any data packet being scheduled in the bundling window and being sent from the base station before the downlink assignment, has been missed.

An apparatus in a mobile terminal for receiving a data packet from a base station, the base station being operable to use a current bundling window for transmitting data packets, wherein the bundling window comprises a number of data packets, transmitted or to be transmitted to the mobile terminal, and to be confirmed by the mobile terminal, the mobile terminal comprising:

• a receiving unit configured to receive a signal from the base station in a first subframe, the signal comprising a downlink assignment of a first data packet of the bundling window, wherein the downlink assignment comprises information about a minimum total number of the data packets within the bundling window that are scheduled to be transmitted to the mobile terminal;
• a decoding unit configured to decode the first subframe to obtain the information about the minimum total number of the data packets;
• and
• an establishing unit configured to establish whether any data packet being scheduled in the bundling window and being sent from the base station before the downlink assignment has been missed.