China Telecom make a large-scale network upgrade and expansion to CDMA network
upgrading the CDMA 1x network to cdma2000 network. After constrution been completed
indoor coverage and optimization is becoming a foucus of the cdma2000 network in the user-centralized areas. PN planning has a major impact on the quality of CDMA network
and it is essential to optimization of CDMA network. Based on the background above and combined with the status of the CDMA network in Liuzhou
this article analysed problems such as PN resource constraints
PN-Offset interference in current CDMA indoor network PN plans
and proposed a PN optimization solution to weaken the network signal interference
improved communication quality and created a high-quality 3G network.