求翻译：在无线网络设计中，随着网络需求的变化，话务密度逐渐增加，希望小区的覆盖半径也随之不同，从十几公里到几百米在稀松的地区，希望小区半径尽可能的大 但受到电波传播损耗，移动终端功率限制以及数字系统时延的限制。在稠密的城区话务高，希望小区半径尽可能小，但受干扰、切换和投资的限制GSM系统缓解上述制约因素的主要技术手段有是什么意思？

, As the network changes in demand in the wireless network design, traffic density gradually increased hope that the radius of cell coverage also will be different from a dozen kilometers to hundreds of meters in the sloppy areas, I hope the cell radius as large as possible but by the radio wave pro

In wireless network design, network with the change in demand, the attendant density increased gradually, in the hope that the small area coverage radius is also different from 10 km to a few 100 meters in the area, I hope that little zone radius of the larger, but as far as possible by radio broadc

In the wireless network design, along with the network demand change, the telephone traffic density increases gradually, hoped plot cover radius also along with it different, but from several kilometers to several hundred meters in the sloppy area, hopes the plot radius as far as possible to receive

In the design of wireless networks, with the change of network requirements, gradual increase in traffic density, hope community coverage RADIUS is different from a dozen kilometres to hundreds of meters in the poor areas of hope community RADIUS as large as possible but subject to radio wave propag