It is an object of the present invention to provide a light-emitting element having a layer containing a light-emitting material and a transparent conductive film between a pair of electrodes, in which electric erosion of the transparent conductive film and metal can be prevented, and also to provide a light-emitting device using the light-emitting element. In specific embodiments, the decision is made in consideration of availability andor suitability of the power saving feature and configuration support in the network, which may be re-detected periodically; re-detection occurs after cell mobility, andor network access element mobility andor network control element mobility. The process can also be reversed to form a single sequence from two sequences.