  The future Fifth Generation (5G) mobile cellular networks that are currently
in research phase today enable broad range of services/applications beyond
classical mobile communications. One key enabler for Ultra-Reliable services to
be integrated into mobile networks is the \textit{Reliability} of transmission
success of a given data packet. This is harder mainly owing to the
time-dependent effective link qualities of the communicating devices. However,
successful indication of the availability of the instantaneous link quality
(e.g., by the device) would allow opportunistic access of ultra reliable
services/applications when the link conditions are fair enough. This paper
introduces a framework for modeling, predicting and analyzing the theoretical
reliability of the wireless link based on factors such as fading, mobility,
interference etc. The analysis and prediction is based on the part stress
method\cite{Birolini2010} by assuming time dependent factors as
elements/components and their respective Transmission Times To Failure (TTTF).
The proposed framework also supports other reliability analysis techniques such
as Fault Tree Analysis and Accelerated testing. of wireless systems and to
improve the components
