Verizon and Ericsson recently completed a proof-of-concept trial using new Integrated Access Backhaul technology to deploy Verizon’s 5G service, eliminating the need to wait for fiber installations.
Fiber-optic cables are critical in wireless networks but working through local regulations and licensing, and then subsequently installing fiber can have very long lead times. So Verizon and Ericsson engineers have found an alternative way of using millimeter wave spectrum for backhaul to accelerate deployment of 5G networks while awaiting the necessary fiber deployment.
IAB works by using airlink connections over mmWave spectrum instead of a fiber connection to send data throughout the network. By dynamically allocating a portion of bandwidth for consumers to send their data from their device to the cell tower, and using another portion for that data to be sent from the cell tower back to the core of the network, the need for fiber initially can be circumvented. Then, when fiber is installed at that location, the data being sent back to the rest of the network can be switched over to the fiber and the bandwidth can be redistributed for more capacity for customers.
Bill Stone, VP of Planning, Verizon
Fiber is the ideal connection between our network facilities. It carries a ton of data, is reliable, and has a long roadmap ahead as far as technological advancements. It is essential. However, this new IAB technology allows us to deploy 5G service more quickly and then fill in the essential fiber at a later time.
Ulf Forssen, Head of Standards & Technology, Development Unit Networks, Ericsson
This IAB proof of concept demonstrates a complementary solution, enabling faster deployment of the high-quality, high-performance 5G transport needed in a 5G world.
