OpenAirInterface: A Pipeline Structure for 5G

Compare to 4G Long-Term Evolution (LTE), 5G New Radio (NR) has higher timing demand with shorter Transmission Time Interval (TTI). In order to develop OpenAirInterface (OAI) for 5G, adjustments for acceleration are needed. The most timing demanding part of the structure is Physical Layer (PHY). In this paper, the functional acceleration improvement and structural parallelism are used to improve the timing while adding latency, to trade off for more execution time.