5G fronthaul-latency and jitter studies of CPRI over ethernet

• DOI: 10.48550/arxiv.1806.06306
• Publication Date: 2018-01-01
• Authors: Divya Chitimalla; Koteswararao Kondepu; Luca Valcarenghi; Massimo Tornatore; Biswanath Mukherjee
• Keywords: DPLL algorithm

Common Public Radio Interface (CPRI) is a successful industry cooperation defining the publicly available specification for key internal interface of radio base stations between equipment control (REC) and (RE) in fronthaul mobile networks. However, CPRI expensive to deploy, consumes large bandwidth, currently statically configured. On other hand, an Ethernet-based will be cost-efficient more easily reconfigurable. Encapsulating over Ethernet (CoE) attractive solution, but stringent requirements such as delay jitter are major challenges that need met make CoE reality. This study investigates whether can meet by performing FPGA-based Verilog experiments simulations. show encapsulation with fixed frame size requires about tens microseconds. Numerical proposed scheduling policy flows on reduce when redundant capacity provided. The reduction 1 {\mu}s, hence making credible technology.