1. The 3rd Generation Partnership Project (3GPP), .
2. See for example, .
3. China Telecom. 5G-Ready OTN technical white paper [Online]. ; September 2017.
4. J. Li. Photonics for 5G in China. In: Asia Communications and Photonics Conference (ACP), paper S4E.1; 2017.
5. Mobile fronthaul architecture and technologies: a RAN equipment assessment [invited];Chanclou;IEEE/OSA J Opt Commun Netw,2018