中翻英~高手人工!急~
来源:百度知道 编辑:UC知道 时间:2024/09/26 10:43:32
Fourth-generation mobile communication system can be described as broad band (Broadband) access and distribution networks, with non-symmetric over 2Mb/s data transmission capacity, data rates over UMTS, support high-speed data rate (2~20Mb/s) between the ideal model Internet speed to 2Mb/s of 100 different rate of automatic switching capability. Fourth-generation mobile communication system is a multifunctional integrated broadband mobile communications systems, in business, functional, band with the third generation system, will be in different fixed and wireless platforms and across different frequency bands of operation of the network to provide wireless services, compared with the third generation mobile communication closer to personal communications. Fourth-generation mobile communication technology will increase the speed of Internet access over third-generation mobile technology 50 times, achieve high-quality transmission of 3D images. 4G mobile communications technology, in