Method And Arrangement In A Mobile Telecommunication Network

An arrangement in a base station of a mobile telecommunication network for reserving base station power for first and second channels, wherein the base station comprises transmitter means for communicating with users on said first channel and transmitter means for communicating with said users on said second channel. wherein the second channel is associated to the first channel, and a scheduler for scheduling the users on the first and second channels, wherein the timing of the at least one first and second channels are overlapping, said arrangement comprising:

• means for determining a candidate set of subsets of users, wherein the subsets of users included in the candidate set has a high probability to be scheduled by said scheduler at a time denoted TTI+t;
• means for estimating a required power of the first channel for a subset of users of the candidate set requiring the highest power of the subsets of users in the candidate set at TTI+t;
• means for scheduling a subset of users at the time TTI
• means for determining the required power of the first channel at the time TTI for said scheduled users;
• means for determining the power of the first channel to be reserved at TTI based on the determined power of the first channel at TTI for said scheduled users and said estimated required power of the first channel for the subset of users of the candidate set requiring the highest power of the subsets of users in the candidate set at TTI+t;
• and,
• means for determining the power of the second channel to be reserved for the scheduled users based on the determined reserved power of the first channel at TTI, wherein t is a value equal or larger than one.