J. Hou, Han Guo, Zhirong Zhang, Chunlei Hu, Xiaohan Xu, Pingping Lin
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Performance Analysis of 2.1 GHz FDD Spectrum Re-farming Scheme Based on MOCN Network
Spectrum planning is crucial for the construction and development of 5G basic networks. The 3.5GHz band currently used for 5G has a short wavelength with the disadvantages of weak propagation capability, small coverage area and limited uplink coverage. In order to reduce costs and increase efficiency, re-farming low-frequency 2.1GHz has become an important way for operators to deploy networks. However, 2.1GHz is used as a supplementary and support frequency band for 4G LTE capacity with high load in rooms and urban areas, which can not be used for the entire frequency band for 5G. In this paper, the current frequency usage of 2.1GHz is sorted out to develop various technical solutions based on MOCN. Further, the proposed solutions are tested in field trials for performance comparison. Finally, considering industry maturity and network evolution, a deployment strategy suitable for operators' 2.1GHz FDD frequency band re-farming is formulated.
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