An apparatus and method for operating a hierarchical cell in a wireless communication system are provided. The coded data includes at least one data portion arranged at a respective position on or in the surface and alignment data arranged on or in the surface, the alignment data being at least partially indicative of at least two registration positions. The temperature of the cooled compressed air is controlled by selectively positioning the bypass valve, which regulates cooling air flow through the heat exchanger. The delay circuit delays the initialization completion signal.