A method in a user equipment for estimating a downlink channel upon receiving an enhanced control channel, eCCH, from a network node in a telecommunications system, wherein the eCCH is distributed over multiple resource block pairs (RB0, RB1, RB2), wherein each of the multiple resource block pairs (RB0, RB1, RB2) comprises a number of resources, and wherein each resource is associated with a respective antenna port, the method comprising: - determining (1307; 1504) that same antenna port is associated with more than one resource, said more than one resource is present in different resource block pairs of the multiple resource block pairs (RB0, RB1, RB2) over which the eCCH is distributed, the determining (1307; 1504) being based on how the eCCH is mapped to the multiple resource block pairs (RB0, RB1, RB2), wherein the antenna port of the more than one resource in the different resource block pairs of the multiple resource block pairs (RB0, RB1, RB2) reflects the same downlink channel for the eCCH, when the eCCH is received in the multiple resource block pairs (RB0, RB1, RB2) that are distributed and separated in frequency and in which the resources used by the eCCH in each resource block pair (RB0, RB1, RB2) are associated with the same antenna port; - estimating (1307; 1505) the downlink channel for the eCCH based on the determined antenna port in the more than one resource in the multiple resource block pairs (RB0, RB1, RB2); and - combining estimated downlink channels for the eCCH from different time instances when estimating (1307; 1505) the downlink channel for the eCCH, when the eCCH is received in resource block pairs (RB0, RB1, RB2) that are mapped into multiple radio sub-frames, wherein a resource block pair is formed by two resource blocks in a sub-frame that are adjacent in time, wherein a resource block comprises 12 subcarriers and one time slot and a radio sub-frame is composed of multiple RBs in frequency and two slots in time. - determining (1307; 1504) that same antenna port is associated with more than one resource, said more than one resource is present in different resource block pairs of the multiple resource block pairs (RB0, RB1, RB2) over which the eCCH is distributed, the determining (1307; 1504) being based on how the eCCH is mapped to the multiple resource block pairs (RB0, RB1, RB2), wherein the antenna port of the more than one resource in the different resource block pairs of the multiple resource block pairs (RB0, RB1, RB2) reflects the same downlink channel for the eCCH, when the eCCH is received in the multiple resource block pairs (RB0, RB1, RB2) that are distributed and separated in frequency and in which the resources used by the eCCH in each resource block pair (RB0, RB1, RB2) are associated with the same antenna port; - estimating (1307; 1505) the downlink channel for the eCCH based on the determined antenna port in the more than one resource in the multiple resource block pairs (RB0, RB1, RB2); and - combining estimated downlink channels for the eCCH from different time instances when estimating (1307; 1505) the downlink channel for the eCCH, when the eCCH is received in resource block pairs (RB0, RB1, RB2) that are mapped into multiple radio sub-frames,