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The eCPRI: MNOs require open fronthaul standards and multi-vendor solutions to reduce deployment costs

The eCPRI: MNOs require open fronthaul standards and multi-vendor solutions to reduce deployment costs

The benefits of cloud-RAN architecture have been well documented. For mobile network operators (MNOs) to deploy cloud-RAN, it is imperative that open fronthaul standards exist allowing MNOs to mix hardware from multiple vendors, leading to reduced deployment costs and lower opex.


Executive Summary
Figure 1: Top eCPRI interface standard srivers and barriers
The new eCPRI standard is vital for 5G fronthaul
Figure 2: The cloud-RAN configuration and the CPRI interface between BBU and RRH
Figure 3: A significant number of eCPRI messages are vendor specific
CPRI bandwidth
Figure 4: CPRI bitrate requirements by technology per cell-site sector and end-user data rate
Figure 5: eCPRI functional decomposition of RAN layer
Figure 6: Illustration of how an open fronthaul standard could enable MNOs to mix RRHs and BBUs from different vendors
Key implications and/or recommendations
Appendix 1: 3GPP
Figure 6: 3GPP possible functional splits within the layer 1, 2 and 3

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