ABSTRACT
Heterogeneity is one of the important characteristics of 5G mobile networks [3]. By way of integrating macro, pico, femto, relay base station and Wi-Fi AP, the network shall be deployed flexibly with low cost and provide broadband access for users to enhance the spectrum efficiency per unit area. Another, the network capacity and coverage shall be improved through deploying heterogeneous network in a random way. 5G mobile networks must be deployed in high density [4]. The lowpower base station (e.g., pico, femto, relay base station and Wi-Fi AP) shall eliminate blind areas only with macro and improve network capacity for hotspot area while macro is the base stone of the network. Meanwhile, optimization for concurrent WLAN Offload/Anti-offload and 3GPP HO Processes, seriously affecting the quality of communication for users, is a problem that must be addressed for 5G mobile networks.
