Method and apparatus for UE group wake up signals are disclosed. The apparatus includes a processor that determines a first time slot (w0) and a first frequency location for a first wake up signal; and a transmitter that transmits the first wake up signal starting from the first time slot (w0) and the first frequency location; wherein the first wake up signal is associated with a paging message and ends at a second time slot minus one (g0−1) with a first maximal duration; wherein a first time offset of the second time slot (g0) and a start of a time slot of the paging message is determined by at least one of: a second time offset of the second time slot to a third time slot for a second wake up signal, a second maximal duration of the second wake up signal, a presence of the second wake up signal, and a paged group number associated with the paging message; wherein the transmitter further transmits the paging message.