TD-SCDMA 1.4MHz载波干扰性能分析

Performance analysis of adjacent frequency interference of TD-SCDMA with 1.4MHz carrier bandwidth

本文主要分析了TD-SCDMA 1.4MHz载波分别与邻近1.4MHz和1.6MHz载波共存的干扰性能。通过理论计算,给出了1.4MHz相对于1.6MHz带宽时,基站和终端的ACLR和ACS射频指标下降程度,并与测试结果进行对比。最后,通过系统级仿真,给出了1.4MHz和1.6MHz载波共存时,系统容量损失结果,为1.4MHz载波频率规划提供参考依据。

The interference of TD-SCDMA with 1.4MHz carrier bandwidth coexisted with adjacent 1.4MHz and 1.6MHz carrier bandwidth is analyzed.Firstly,ACLR and ACS value are calculated in theory for base station and user equipment with 1.4MHz and 1.6MHz carrier bandwidth respectively.Secondly descent of ACLR and ACS are analyzed and compared with BS and UE equipment test result.Finally system capacity loss is calculated when adjacent carrier are coexisted for 1.4MHz and 1.6MHz carrier bandwidth respectively by system level simulation.The results of simulation are very valuable for 1.4MHz frequency plan of TD-SCDMA.