Analysis And Optimization For The Scheduler Of FDD-LTE System

With the rapid growth of the rapid development of wireless communications and data services,4G wireless communications ushered in the spring of its development. Into FDD-LTE and LTE TDD-LTE. FDD-LTE frequency division duplex LTE 4Gstandardis on the countries and regions in the world’s most widely used LTE standard. LTE-TDD is a division duplex LTE is the main push of the 4G mobile standard.This paper studies the MAC layer FDD-LTE system scheduler, the scheduler is the core MAC layer is responsible for allocating radio resources to the user, so the dispatcher at the completion of a scheduled task, not only to ensure the real-time scheduling, but also to ensure QoS, how to ensure that these two aspects, how to optimize the scheduler to support more users scheduling is the focus of this study.This paper describes the FDD-LTE entire system architecture, including its composition and workflow; scheduler and dispatcher position in the software architecture role of the data area; combined analysis of the operating characteristics of each layer of the system hardware architecture design ideas, and Description of the vector is selected as the scheduling hardware and operating system used. The scheduler then discusses the basic structure and composition of the core modules of the general process of collaborative work, describes common scheduling algorithm, described in detail scheduler features five core modules and working principles and processes. Then proposed to increase parallelism architecture level optimization programs to improve the QoS algorithm -level optimization programs and to support more users to participate in the scheduling of code-level optimization program based on the principles of the scheduler. Finally,afteroptimizingthe effectiveness and superiority of the experimental validation program design.