AWS Solutions Architect

Today, a typical modern macrocell is served by a 1GbE packet-based optical MBH network link, although the typical traffic over this 1GbE physical connection is about 200Mbps to 300Mbps, leaving some room for growth, for 4G networks.

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Thus, the total aggregate bandwidth consumed by all of the concurrent mobile users to a typical macrocell is roughly equivalent to the maximum theoretical download speed of a single LTE-Advanced (Release 8) user connection. Granted, this is a rough estimate but you see where I’m going. Although current MBH networks may suffice for 4G today, the promised access speeds of 5G is likely going to overload existing MBH networks quite quickly.

MNOs connecting 3G and 4G cells, small and macro, via fiber are also laying the foundation for 5G, which has maximum theoretical download speeds from 1Gbps for high mobility users (ex. bullet train commuters) to 10Gbps for low mobility users (ex. stationary, walking). Even if the maximum theoretical download speed of 10Gbps were scaled down by 90% to 1Gbps, the entire 1GbE MBH connection to a typical macrocell today, intended to serve all concurrent 4G users, would be consumed by one bandwidth-hungry 5G user, like me.

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