The capabilities of 5G networks do not depend only on 3GPP specifications and on network and user equipment but also on the practical network deployment constraints. 5G technology alone cannot provide great performance if there is not enough spectrum or enough base stations or if interference is not minimized by coordination. This chapter discusses some of those deployment aspects. It considers spectrum resources, discusses the density of the existing base station network, and illustrates the usage of mobile data and the asymmetry between the downlink and uplink. It describes base station site solutions, electromagnetic field considerations, and network synchronization and coordination requirements. The chapter discusses options how to implement the 5G network using radio vendors other than the existing LTE network. The target is to introduce a new radio network vendor with 5G without significant support from an incumbent LTE vendor, and without significantly impacting the resultant network performance and user experience.