论文部分内容阅读
当前,我国数字移动电话业务发展势头迅猛,但由于移动通信网络的建设受到投资以及用户分布不均衡的影响.在地广、人稀的地区,其基站不可能很多,致使用户经常抱怨电信运营者服务质量差,甚至要求退机.究其原因,影响覆盖的很重要一条是GSM系统上、下行之间传输不平衡.BTS发射功率一般可达40～50W,而MS发射功率仅为0.6～1W,且发射天线增益也有几个dB的差异,因此很多情况是手机不能上线.即使能上线,也多是手机可以收到基站信号,而对方收不到手机信号而中断通话.为此,解决这个问题最经济可行的办法是使用GSM塔顶放大器.
At present, the development of digital mobile phone business in our country is developing rapidly, but the construction of mobile communication network is affected by the unbalanced distribution of investment and users, and in the vast and sparsely populated areas, there are not many base stations. As a result, users often complain about telecom operators The quality of service is poor and even requires a return service.An important reason for the coverage is that the transmission over the GSM system is unbalanced between downlinks, and the transmission power of the BTSs can generally reach 40-50W while the transmission power of the MSs is only 0.6-1W , And the transmit antenna gain is also a few dB difference, so in many cases the phone can not go online even if the line, but also the phone can receive the base station signal, and the other side can not receive cell phone signal and interrupt the call.To this end, to solve this The most economical and feasible solution to this problem is to use a GSM tower top amplifier.