UE和基站之间的各种损耗计算函数和自适应编码函数，其中包括路径损耗、角度损耗、阴影衰落、SINR更新，AMC函数、小区接入函数、UE初始化函数等，主要用于TDDLTE下行仿真使用。希望能给做TDDLTE下行仿真的*一些启发。(The calculation function and adaptive encoding function of various loss between the UE and the base station, including path loss, angle loss, shadow fading, SINR update, AMC function, cell access function, UE initialization function, mainly used for TDDLTE downlink simulation. I hope I can do some inspiration for TDDLTE downlink simulation.)