A method of selecting a set of beams to be monitored by a User Equipment, UE (112, 601), in a telecommunication network, said telecommunication network comprising a Base Station, BS, function coupled to at least one Access Node, AN, serving said UE (112, 601), said method comprising the steps of: - receiving, by said BS function, from said UE (112, 601), measurement data comprising measurements of qualities of beams observed by said UE (112, 601), wherein said beams originate from said at least one AN to said UE (112, 601), and originate from at least another AN in said telecommunication network to said UE (112, 601); - retrieving, by said BS function, in a historical database, at least one measurement data from a particular UE (112, 601) that matches the received measurement data, wherein the historical database comprises historical measurement data comprising measurements of qualities of beams observed by UEs (112, 601) in said telecommunication network; - selecting, by said BS function, a set of beams to be monitored by said UE (112, 601), and - transmitting, by said BS function, said selected set of beams to be monitored to said UE (112, 601), wherein: - said selecting, by said BS function, of a set of beams to be monitored by said UE (112, 601) is based on said retrieved at least one measurement data comprising qualities of beams observed by said particular UE (112, 601) and is based on subsequent measurement data comprising qualities of beams observed by said particular UE (112, 601) over time in said historical database; and - said transmitting, by said BS function, said selected set of beams to be monitored to said UE (112, 601) further comprises transmitting a frequency parameter indicating to said UE (112, 601) how many measurements for said selected set of beams are to be performed by said UE (112, 601). - receiving, by said BS function, from said UE (112, 601), measurement data comprising measurements of qualities of beams observed by said UE (112, 601), wherein said beams originate from said at least one AN to said UE (112, 601), and originate from at least another AN in said telecommunication network to said UE (112, 601); - retrieving, by said BS function, in a historical database, at least one measurement data from a particular UE (112, 601) that matches the received measurement data, wherein the historical database comprises historical measurement data comprising measurements of qualities of beams observed by UEs (112, 601) in said telecommunication network; - selecting, by said BS function, a set of beams to be monitored by said UE (112, 601), and - transmitting, by said BS function, said selected set of beams to be monitored to said UE (112, 601), wherein: - said selecting, by said BS function, of a set of beams to be monitored by said UE (112, 601) is based on said retrieved at least one measurement data comprising qualities of beams observed by said particular UE (112, 601) and is based on subsequent measurement data comprising qualities of beams observed by said particular UE (112, 601) over time in said historical database; and - said transmitting, by said BS function, said selected set of beams to be monitored to said UE (112, 601) further comprises transmitting a frequency parameter indicating to said UE (112, 601) how many measurements for said selected set of beams are to be performed by said UE (112, 601). - said selecting, by said BS function, of a set of beams to be monitored by said UE (112, 601) is based on said retrieved at least one measurement data comprising qualities of beams observed by said particular UE (112, 601) and is based on subsequent measurement data comprising qualities of beams observed by said particular UE (112, 601) over time in said historical database; and - said transmitting, by said BS function, said selected set of beams to be monitored to said UE (112, 601) further comprises transmitting a frequency parameter indicating to said UE (112, 601) how many measurements for said selected set of beams are to be performed by said UE (112, 601).