The Design And Implementation Of CDMA Femtocell System

Mobile wireless network development is ecbolic picocell solutions, with the mobile broadband traffic density increase, will need the site reserve more and more, the traditional Acer station site difficult to obtain, hard to retain, high construction cost, high maintenance cost challenges, only by traditional Acer station to solve the hot cell congestion and solve the depth of coverage has been unable to meet the needs of the development of mobile broadband.Mobile wireless network by Acer station single-layer network to hierarchical three-dimensional network development has become an inevitable trend. But the traditional indoor distribution system deployment and often involves complex construction, hard to avoid property access, transmission channels etc.. In response to this situation, can pass from Acer station, distributed base station, Micro station, Femtocell, Pico forming a three-dimensional network to meet the various scenarios of the coverage and capacity demand.Femtocell (femtocell or femtocell) are a superfamily of small signal source, which integrates BSC, BTS, antenna in one, able to directly use the existing network broadband transmission resources (ADSL or LAN), mobile business back at the user level, it can be completely plug-and-play. Femtocell as a hierarchical stereo network is a key ring, with rapid deployment, easy access, large capacity, low TCO (total cost of ownership) features, in addition to enhance the breadth and depth of coverage, to solve the coverage blind spots, but also in the hot spot region to provide accurate hot shunt capacity, a mobile wireless network development of emerging technology. China Telecom2011start of Huawei CDMA Femtocell system trial, in Beijing, Hebei, Hubei, Guangxi and other10provinces and cities were stationing experiment. This paper introduces the CDMA femtocell system Huawei Technology framework, scenarios and solutions. And the selected10pilot provinces representative Wuhan Experiment Bureau, told CDMA Femtocell system in practical engineering in the deployment scheme and matters needing attention. The research and implementation of Femtocell system to optimize the existing mobile networks, to adapt to the rapid development of mobile broadband demand, improve mobile user perception has important practical significance.