A first adjustment range of a first scheduled occurrence of a first transmission event associated with a first data service is determined based on a first transmission interval of the first data service and a non-zero first interval adjustment tolerance. A second adjustment range of a second scheduled occurrence of a second transmission event associated with a second data service is determined based on a second transmission interval of the second data service and a second interval adjustment tolerance. An activation period is determined at a wireless device based on an alignment of the first transmission event and the second transmission event in response to the first adjustment range and the second adjustment range being concurrent and the wireless device activates a wireless interface for the activation period.