An apparatus and method for mapping a cell IDentifier for cell searching in a transmitter of a wireless communication system are provided. wherein one of A and B denotes hydrogen and the other an optionally substituted fused tricyclic heteroaryl group; and X is S. The bracket has two parallel retaining walls. The new parameter values are then used to estimate the location of the target device again. The space between the fiber and the tube is filled with a low vapor pressure fluid selected for refractive index that will promote light leaking out of the fiber through the tube. Bandwidth requests are received from the satellite modems and granted.