Based On The3G Femtocell Indoor Coverage

With the coming of3g era, the role of the mobile phone is not only confined to the calling and texting, it has play the role of the PDA, people can be done using a mobile phone anytime and anywhere before all the operation can only be carried out on the computer. Mobile phones have deep into people’s life, bring convenience. Followed, the user demand for high-speed Internet access and the contradiction between the lack of coverage is growing.3g and the upcoming4g system transmission frequency is higher and higher, through the performance of the building is more and more poor, outdoor macro cellular signal is not good to infiltrate the indoor. So urgently need to be able to improve the quality of indoor coverage permeability and the signal of the new technology. Femtocell technology due to its plug and play, easy to implement, do not need to change the core network structure, expansion and has good performance, can provide high quality voice and data services and the security of network and other characteristics, more suitable for indoor coverage. It promoted the development of fixed mobile convergence. It compared with other similar business, has low cost, easy deployment and good service.This paper first describes the background of the Femtocell technology, to the Femtocell at home and abroad is introduced, the development of application of the system structure of the Femtocell has carried on the detailed analysis, and compared the Femtocell and WLAN, WiFi differences. Mainly introduces the work has been done in zhengzhou unicom in Femtocell. Finally, this paper discusses the prospect of development of Femtocell, points out its commercial present situation and some of the problems need to face.