A method in a network node (115) comprises obtaining (704) a length of a paging transmission window (PTW) (515) within a discontinuous reception (DRX) cycle of a first type (505) configured in a first cell, and obtaining (708) at least one of a number of DRX cycles of a second type (525) remaining within the PTW with respect to a reference time in the first cell and an amount of time remaining within the PTW starting from the reference time. The method comprises determining (712) whether a paging message can be transmitted in the first cell based on the obtained at least one of the number of DRX cycles of the second type remaining within the PTW with respect to the reference time in the first cell and the amount of time remaining within the PTW starting from the reference time.