FDD-LTE系统调度器研究与优化

发布时间：2018-06-24 10:08

本文选题：调度器 + 服务质量　；参考：《武汉邮电科学研究院》2014年硕士论文

【摘要】：随着无线通信的飞速发展和数据业务的飞速增长,4G无线通信迎来了其发展的春天。LTE分为FDD-LTE和TDD-LTE,FDD-LTE是频分双工LTE的4G标准是世界上的国家及地区采用最广泛的LTE制式。LTE-TDD是时分双工LTE是中移动主推的4G标准。本文主要研究FDD-LTE系统MAC层调度器,调度器是MAC层的核心,负责对用户无线资源的分配,因此调度器在完成调度任务时,不仅要保证调度的实时性,而且要保证QoS,如何确保这两个方面,如何优化调度器使其支持更多的用户调度是本文研究的重点。本论文介绍了FDD-LTE整个系统的架构,包括其组成与工作流程；调度器在软件架构中的位置及调度器作用的数据区；结合各层工作特性分析了系统硬件架构的设计思路,并说明了选择作为调度器硬件载体和所使用的操作系统。接着论述了调度器的基本组成结构及核心模块协作工作的大致流程,介绍了常见的调度算法,详细介绍了调度器5大核心模块的功能特性及工作原理和流程。然后根据调度器的原理提出了增加并行性的架构级优化方案,提高QoS的算法级优化方案和为了支持更多用户参与调度的代码级优化方案。最后根据设计的实验验证优化后方案的有效性和优越性。
[Abstract]:With the rapid development of wireless communication and the rapid growth of data service , 4G wireless communication is the spring of its development . The LTE is divided into FDD - LTE and TDD - LTE . FDD - LTE is the core of frequency division duplex LTE . The LTE - TDD is the core of frequency division duplex LTE .
the position of the scheduler in the software architecture and the data area of the role of the scheduler ;
This paper analyzes the design idea of the hardware architecture of the scheduler in combination with the working characteristics of each layer , and illustrates the basic components of the scheduler and the operating system used . Then , the basic structure of the scheduler and the general flow of the cooperation of the core modules are discussed . The common scheduling algorithm is introduced . The architecture - level optimization scheme for increasing the parallelism is put forward according to the principle of the scheduler , the algorithm - level optimization scheme for improving QoS and the code - level optimization scheme for supporting more users participate in the scheduling . Finally , according to the design experiment , the effectiveness and superiority of the optimized scheme are verified .
【学位授予单位】：武汉邮电科学研究院
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.5

【相似文献】