求英语翻译高手！

With the city's rapid increase in mobile users and high-rise, extensive buildings, traffic density, and coverage requirements on the rise. These buildings have a strong mobile phone signal shielding effect. Lower in large buildings, underground shopping malls, underground car parks and other environments, mobile communication signal is weak, the phone does not work properly, the formation of a mobile communication blind spots and shadow areas; in the middle floor, the signals from different base stations overlap around , Resulting in ping-pong effect, switch the phone frequently, and even dropped calls, seriously affected the normal use of mobile phones; high-rise buildings, due to the base station antenna height restrictions can not be properly covered, but also blind spots of mobile communications. In addition, in some buildings, while the normal phone call, but the user density, the base station channel congestion, the phone line difficulties. And, now 3G technology in China has begun commercial, 3G's charm lies in high-speed data and multimedia services, and video telephony, video streaming, gaming and other high-speed data services are generally in a comfortable indoor environment, these need major business functions System capacity and good network quality.

Mobile communication network coverage, capacity, quality and competitive advantage for operators to obtain a key factor. Network coverage, network capacity, network quality reflects a fundamental service in mobile networks, mobile network optimization of all the topics.

Coverage, due to building shielding and absorption of their own, resulting in greater transmission of radio wave attenuation, the formation of weak mobile signal areas or blind field;