The Planning Of Huludao 3G Mobile Network

With the network expansion and network quality rising, the numbers of mobile customers are large-scale development, the lack of frequency resource and the full load of the system appeared. The increase of low end customers results in the ARPU gradually going down. Due to the profits shrinking of voice service, the rich diversity services are necessary to enhance ARPU. For the current 2G network which is difficult to meet the requirements. To solve these problems, the evolution of the network from 2G to 3G is inevitable.Huludao Mobile is facing the same problems, so the evolution from 2G to 3G becomes the inevitable choice. After several years of development, the GSM network of Huludao is already perfect, the WCDMA network can be evolved smoothly from GSM, and the investment is smallest at the same time, therefore WCDMA will become the preferred 3G network for Huludao.3G (3rd Generation), as the third generation mobile communications system can provide the variety and high quality multimedia services, has seamless global coverage and roaming capability, is compatible with fixd network and can provide communication any time, any place and any kind of services for the portable terminals. The mainstream of the third generation mobile communication technology included two FDD and one TDD technologies are WCDMA, CDMA2000 and TD-SCDMA proposed by China.WCDMA is a broadband direct sequence code division multiple access (DS-CDMA) system, that is spread the user data bits into broadband by multiplying the user date bits by pseudorandom bits generated by spread spectrum (called as chip). WCDMA support the asynchronous operation...