LTE-A综测仪MAC层协议软件的设计与实现

发布时间：2018-04-11 10:12

本文选题：LTE-A + 综测仪　；参考：《华中科技大学》2014年硕士论文

【摘要】：LTE-A综测仪能实现对LTE-A终端性能特性和设计方案的全面检测，有效提高LTE-A终端研发效率和生产质量，促进LTE-A终端技术的成熟，推动LTE-Advanced产业的发展。本文源于国家科技重大专项“TD-LTE-Advanced终端综合测试仪表开发”，论文的主要工作包括：（1）在LTE-A综测仪MAC层协议软件的设计中。首先结合MAC层功能需求进行难点分析，针对各难点给出建立HARQ通道时序关系表、设计HARQ通道状态转换图、独立载波调度、零拷贝、减少使用中断和信号量等设计思路，然后对MAC层协议软件架构和层间接口进行设计，MAC层与RLC层、RRC层通过环形缓冲队列交互控制信息和数据包，MAC层与PHY通过以太网接口进行信息交互，MAC层协议软件包括MUX、HARQ、MAC控制、调度、随机接入和MAC Common6个子模块，分别用于实现复用/解复用、HARQ、MAC层控制元素管理、资源调度、随机接入和高层控制消息处理，最后对每个子模块的进行具体设计。（2）在LTE-A综测仪MAC层协议软件的测试工作。首先分析了MAC层协议软件的测试需求，包括HARQ时序测试、HARQ功能测试、复用/解复用测试、BSR测试、下行资源分配测试、随机接入测试、MAC层集成测试和MAC与RLC联测。然后设计一种基于VC开发环境的测试平台，包括eNB侧和UE侧测试软件，两者的实现均采用多线程模型并通过socket进行通信，，前者通过时序包周期性唤醒后者以实现协议处理的同步。最后依次对各项测试进行了详细设计并对具体结果进行了分析，测试结果表明MAC协议软件各项基本功能运行正常，且具有良好的稳定性。
[Abstract]:LTE-A comprehensive measurement instrument can realize the overall detection of LTE-A terminal performance characteristics and design scheme, improve the efficiency and production quality of LTE-A terminal research and development, promote the maturity of LTE-A terminal technology and promote the development of LTE-Advanced industry.This paper originates from the national science and technology major project "TD-LTE-Advanced terminal comprehensive test instrument development". The main work of this paper includes:1) in the design of MAC layer protocol software of LTE-A comprehensive measuring instrument.Based on the analysis of the function requirements of MAC layer, this paper presents the design ideas of establishing the HARQ channel timing relation table, designing the HARQ channel state transition diagram, independent carrier scheduling, zero copy, reducing the use of interrupt and semaphore, etc.Then the design of MAC layer protocol software architecture and interlayer interface between MAC layer and RLC layer through ring buffer queue interactive control information and data packet MAC layer and PHY through Ethernet interface information exchange MAC layer protocol software including MAC control, scheduling,Random access and MAC Common6 submodules are used to implement the control element management, resource scheduling, random access and high level control message processing in the MAC layer of multiplexing / demultiplexing, respectively. Finally, the specific design of each sub-module is carried out.2) testing the MAC layer protocol software of LTE-A comprehensive tester.Firstly, the testing requirements of MAC layer protocol software are analyzed, including HARQ timing test, multiplexing / demultiplexing test, downlink resource allocation test, random access test and MAC / RLC integration test.Then a test platform based on VC development environment is designed, including eNB side and UE side test software. Both of them are implemented by multi-thread model and communicate through socket.The former rouses the latter periodically to realize the synchronization of protocol processing.Finally, each test is designed in detail and the concrete results are analyzed. The test results show that the basic functions of the MAC protocol software are running normally and have good stability.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.5

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