Latency in the case of 5G refers to over-the-air latency, between the user device and the radio access network radio. To reduce overall latency, service providers will need to put data much closer to end-users, which is why some MNOs are considering leasing space at their cell sites to host data and applications for content providers, particularly in large urban centers. Ultimately, the placement of data and processing will be determined by the supported 5G application. The Mobile Edge Computing (MEC) initiative will play a major role in addressing this important challenge
