[eBrief] Meeting the 5G Backhaul Challenge
The advent of 5G is driving operators to take a holistic approach to transport network planning. In previous RAN evolutions, often new radio technologies were deployed, and connected to the transport network using available facilities near the distributed RAN site. Over time, in most cases, those transport network on-ramps had to be upgraded to support the increased capacity needs of the evolved RAN.
With 5G comes a significant increase in capacity, an estimated doubling of radio sites deployed, and a new architecture with new RAN and Core interfaces. New radio access technologies such as mmWave and Massive MIMO, combined with these new interfaces will once again strain current transport networks by imposing higher capacity, lower latency, new traffic flows like Fronthaul and Mid-haul, along with stricter timing and synchronization requirements.
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