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Research on Procedure and Parameter Optimization of Handover in TDD-LTE System

Author: HuangBo
Tutor: RenGuangLiang
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: TDD-LTE High-speed rail Switch Optimization
CLC: TN929.5
Type: Master's thesis
Year: 2011
Downloads: 189
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Abstract


3GPP LTE technology is the long-term evolution of the current 3G system based on OFDM and MIMO technologies . Its existing 3G network structure of the system and the wireless access has greatly improved . Switching is an important part of the system of mobility management , 3GPP LTE the flattening of the network structure and streamlining signaling design , it can be so that the switching can be more quickly and effectively complete . With the development of China 's high-speed rail , bring convenience to people's lives , but also for high-speed rail service put forward higher requirements, which is one of the high-speed mobile frequent switching problem . Coverage of China 's high-speed railway communication system will be fully based on the above-mentioned characteristics of LTE technology , LTE technology . A first portion of the paper first overview of the LTE network architecture and access technologies, which describes the whole process of the handover of the LTE system . And then on the basis of a detailed analysis of the switching process , build a TDD-LTE cellular simulation platform based on MATLAB . Based on the simulation platform , the parameters involved in the same frequency of the switching process research and analysis of the performance of different parameter settings through simulation comparison . Come to the importance of the need for switching and switching parameters optimized . The second part describes the the switching environment characterized by high-speed rail and high-speed mobile environment , and referred to a specialized solutions for this problem - the adjacent areas of the chain switching algorithm . Parameter optimization analysis model based on the above algorithm , the same importance in the switching algorithm performance under different parameter settings and parameters optimization through simulation comparison . At the same time , the simulation results also show that the parameter optimization and the status of the channel is associated .

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