In today’s 4G LTE and soon to be 5G cellular networks, massive network densification is required to support the surge in demand for mobile data and support of the Internet of Things (IoT). The requirements for future networks will only be met if the architecture of the whole network is reconsidered, including radios, baseband, fronthaul/backhaul transport and core networks. Anritsu offers C-RAN networks that bring baseband units together into BBU Hotels, and enable the virtualization of the network through the implementation of network functions in software on standard IT platforms.