Investigation and Handling of Adjacent Interference Cases between Digital Terrestrial Television and CBN 5G in the 700MHz Frequency Migration Project
This article takes the case study of solving the deterioration of user access service quality for 5G base stations in Dingxi,Gansu Province in the 700 MHz frequency migration project.Through testing and investigation,it is finally determined that the problem is caused by adjacent frequency interference between the uplink signal of the communication base China Broadcast Network's 5G and the broadcasting signal of the digital terrestrial television Channel 36 of the transmitting station.After simulation calculation,we have developed an anti-interference band-pass filter and installed it in the communication base station,effectively solving the problem.This study is of great significance for improving the quality of user access services for China Broadcast Network's 5G base stations,and provides a useful reference for solving similar problems.
Channel 36Strict spectrum templateAdjacent frequency interferenceFilter
万方数据
维普
