Methods and arrangements in a mobile telecommunications system

摘要

The present invention relates to a solution for taking into account that the interference, which each of the transmission resource elements is affected by, may differ between the different transmission resource elements when determining an interference estimate by determining a mixed interference estimate, e.g. based on both reference symbols and data symbols. Furthermore, signalling from the network is also introduced which makes it possible to control what the mixed interference estimate should be based on.

主权项

1. A method in a user equipment connected to a network node of mobile telecommunication network for determining an interference estimate, the method comprising:
receiving at least a first set of mixing parameters from the network node, the mixing parameters defining a set of interference estimates for at least a first type of resource elements of an Orthogonal Frequency-Division Multiplex (OFDM) time-frequency grid, determining interference estimates on the at least a first type of resource elements, and determining a mixed interference estimate based on applying said received at least first set of mixing parameters to the determined interference estimates; wherein the first type of resource elements comprises reference symbols; and wherein at least one of the reference symbols is assigned to a control channel signaling portion of the OFDM time-frequency grid.