广州地铁4号线无线信号小区重选问题研究

Cell Re-selection of the Wireless Signal on Guangzhou Metro Line 4

介绍了广州地铁4号线关于数字式TETRA标准机制下无线专网小区重选的研究。通过对各参数的分析,探讨影响小区重选的一系列因素,并在广州地铁4号线现场进行了实际应用。通过修改切换参数解决了广州地铁4号线无线信号小区重选不平滑的问题。

The research on TETRA （terrestrial trunked ra- dio） mechanism of wireless network cell re- selection on Guangzhou metro Line 4 is mainly introduced. Through an- alyzing a series of parameters, factors that influence the cell re-selection are investigated, and this method has been put into practical application on Metro Line 4. By switc- hing the parameters, the problem of unsmooth cell re-selec- tion on metro Line 4 is solved.