一种基于LTE非信令终端综测的定时估计算法

With the commercialization of the fourth generation technology, the efficient test of LTE terminal is becoming increasing important. However,the fast offset-calibration, fast non-signaling measurements requires a complete data in order to get correct measurement results, but this time the terminal is in a state of continuous data sent. This requires us to find the starting position of the data firstly, the header of data. After determining the header of the location data, so we can get the complete data, and then get the correct measurement results. However, the non-signaling test method has no uplink synchronization process, how to accurately find the header of the data becomes important. This paper from time-domain signal itself, we put forward a new method to detect the header of the data in non-signaling measurements. And through the performance analysis and simulation, compared with the original method to verify the new method has more advantageous when in the non-signaling test system.