Research&Implementation Of Physical Layer Mimo In TD-LTE System Simulator

The author has been involved in the development of TD-LTE system simulation platform and mainly responsible for the research and implementation of Spatial Multiplexing and Beam Forming Module in the platform. The thesis mainly describes the author’s main work and achievements.The main content is as follows:Chapter I describes the background of the subject.Chapter II describes TD-LTE System Simulator Platform’s structure of hardware and software, structure of DSP and the key technology and implementation framework of physical layer MIMO.Chapter III implements the module of Spatial Multiplexing including the Close-loop and Open-loop spatial multiplexing scheme. At first, analyze the principles and provisions of the protocol; then design the process of both Spatial Multiplexing module combined with their own characters; At last, verify accuracy of the modules and analyze the modules’efficiency.Chapter IV implements the module of Beam Forming:At first, analyze the principles and provisions of the protocol of Beam Forming; then analyze the generating and mapping process of User-Specific Reference Signals; At last, analyze and implement the beam forming module as well as verify accuracy of the module and analyze the module’s efficiency.Chapter V makes a summary of this research work.The achievements have been applied in TD-LTE system simulation platform. Through the practical application test, the achievements meet protocol conformance and can run fast and stably.