Ultra-Reliable Communication (URC) is one of the promising features in 5G to provide anytime and anywhere services to the end users. Services related to URC require a high level of reliability and availability. Hence, investigation of system’s availability in anytime and anywhere is considered as one of the important topics that would improve the quality and performance of systems. This paper focuses on studying the availability and reliability in the space domain for regular, irregular, and hybrid cell construction schemes. The hybrid construction will be proposed in this work as the more realistic one. The availability analysis for the new model is also studied and results comparison is carried out with those of regular and irregular models. The availability study for static and mobile end-users with different patterns of mobility for individual and multi-cell networks are also considered in this paper. At the end of the paper, the total transmission power for the three schemes considered in case of the homogenous (HomNets) and heterogeneous (HetNet) networks is also considered. Moreover, the power control, path loss, shadowing, Bit Error Rate and Spectral Efficiency are also considered in this work.