Integrating Fronthaul and Backhaul Networks: Transport Challenges and Feasibility Results

In addition to CPRI, new functional splits have been defined in 5G creating diverse fronthaul transport bandwidth and latency requirements. These fronthaul requirements shall be fulfilled simultaneously together with the backhaul requirements by an integrated fronthaul and backhaul transport solutio...

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Bibliographic Details
Authors: Gonzalez-Diaz, S, Garcia-Saavedra, A, de la Oliva, A, Costa-Perez, X, Gazda, R, Mourad, A, Deiss, T, Mangues-Bafalluy, J, Iovanna, P, Stracca, S, Leithead, P
Format: article
Status:Published version
Publication Date:2021
Country:España
Institution:Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
Repository:r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
OAI Identifier:oai:cttc.fundanetsuite.com:p1401
Online Access:https://cttc.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1401
Access Level:Open access
Keyword:5G-Crosshaul
fronthaul
backhaul
5G
C-RAN
Description
Summary:In addition to CPRI, new functional splits have been defined in 5G creating diverse fronthaul transport bandwidth and latency requirements. These fronthaul requirements shall be fulfilled simultaneously together with the backhaul requirements by an integrated fronthaul and backhaul transport solution. In this paper, we analyze the technical challenges to achieve an integrated transport solution in 5G and propose specific solutions to address these challenges. These solutions have been implemented and verified with pre-commercial equipment. Our results confirm that an integrated fronthaul and backhaul transport dubbed Crosshaul can meet all the requirements of 5G fronthaul and backhaul in a cost-efficient manner.

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