A method performed by a first network node, the first network node, a second network node and a User Equipment, UE, operate in a wireless communications system, the first network node being located indoors, and the second network node being located outdoors, the method comprising: receiving, a message from the UE, which message indicates any one out of: that the UE is located indoors and is served by the second network node, and that the UE is located outdoors and is served by the first network node, keeping unchanged a cell specific offset of the first network node when the UE is located indoors and is served by the first network node, keeping unchanged the cell specific offset of the first network node when the UE is located outdoors and is served by the second network node, the method further comprising: - when it is indicated that the UE is located indoors and is served by the second network node, adjusting transmission parameters in the first network node to trigger a handover of the UE to the first network node located indoors, wherein adjusting transmission parameters comprises increasing the cell specific offset of the first network node by a first constant, and - when it is indicated that the UE is located outdoors and is served by the first network node, adjusting transmission parameters in the first network node to trigger a handover of the UE to the second network node located outdoors, wherein adjusting transmission parameters comprises decreasing the cell specific offset of the first network node by a second constant, and sending a signal to the UE informing about the adjusted transmission parameters. receiving, a message from the UE, which message indicates any one out of: that the UE is located indoors and is served by the second network node, and that the UE is located outdoors and is served by the first network node, keeping unchanged a cell specific offset of the first network node when the UE is located indoors and is served by the first network node, keeping unchanged the cell specific offset of the first network node when the UE is located outdoors and is served by the second network node, the method further comprising: - when it is indicated that the UE is located indoors and is served by the second network node, adjusting transmission parameters in the first network node to trigger a handover of the UE to the first network node located indoors, wherein adjusting transmission parameters comprises increasing the cell specific offset of the first network node by a first constant, and - when it is indicated that the UE is located outdoors and is served by the first network node, adjusting transmission parameters in the first network node to trigger a handover of the UE to the second network node located outdoors, wherein adjusting transmission parameters comprises decreasing the cell specific offset of the first network node by a second constant, and - when it is indicated that the UE is located indoors and is served by the second network node, adjusting transmission parameters in the first network node to trigger a handover of the UE to the first network node located indoors, wherein adjusting transmission parameters comprises increasing the cell specific offset of the first network node by a first constant, and - when it is indicated that the UE is located outdoors and is served by the first network node, adjusting transmission parameters in the first network node to trigger a handover of the UE to the second network node located outdoors, wherein adjusting transmission parameters comprises decreasing the cell specific offset of the first network node by a second constant, and sending a signal to the UE informing about the adjusted transmission parameters.