The Mechanism Design of Multiple Instances in PDCP Sublayer Base on NECLUES System

Real-time and reliability are factors of communication software design which requires special consideration. Nucleus PLUS operating system can ensure the real-time and reliability in communication. This paper relies on the project of the LTE-Advanced platform, for a variety of business application in the scene at the same time. Base on the study of the Nucleus PLUS operating system startup and operation mechanism, we design multiple instances of Nucleus PLUS implementation mechanism based on the real cases, including the overall control, multiple instances processing function, state machine processing module etc. Taking PDCP layer as an example, we design independent stable mechanism of PDCP layer multiple instances, including the way of multiple instances message processing. This scheme has been used in the project of testing equipment of LTE-Advanced system.