Research And Implementation On UL And DL Of The TD-LTE-A UE RF Conformance

As the fourth generation mobile communication system, the research progressing of TD-LTE system has taken attention in the worldwide. TD-LTE system has been used in China Mobile. UE RF conformance test must be done before UEs come into the commercial market, for its commercialization.This paper focuses on relevant key algorithms research and test system design and completion for UE RF conformance test. The main content is to study relevant tests’ requirements in TD-LTE communication protocols, puts up with measurement algorithm, design process, and complete the function of UE RF conformance test.The first chapter briefly describes the research back ground, origin and significance of this paper.The second chapter details the key physical layer technology of TD-LTE, OFDM and MIMO. Also overview TD-LTE UE RF conformance test, as well as its current situation of both here and abroad.The third chapter clearly analyses relevant protocols and puts up with key test algorithms involved in each test, such as channel demodulation, synchronization, carrier leakage, IQ imbalance, etc.The forth chapter puts up with the system’s hardware and software architecture designed in this project. Complete the UE RF conformance test. Also, verify the correctness of the results by spectrum analyzer achieved through the tester.The fifth chapter summarizes the thesis, and looks forward to a follow-up paper studies the feasibility of developing content.Currently, the research content has been applied in the commercial TD-LTE UE RF tester to detecting signal quality of UEs.