3G 4G can not wait to take the Expo ascendant surface
Mobile Technology Area, perhaps the latest word should be called "Long-TermEvolution" (literally translated as "long-term evolution"), referred to as LTE.
If you do not know, then next year you come across the word great. Because it is a fourth generation (4G) wireless Communicate Standard , And has received a lot of the world's largest telecommunications Company Support.
3 25, has just opened at CTIA (CTIA2010), the United States the third largest network operator Sprint to join hands HTC, launched the world's first to support WiMax 4G network smartphone?? HTCEVO4G.
The domestic 3G has just been in the ascendant, the fourth generation mobile communications technology "4G" could not wait to take the opportunity surfaced Shanghai World Expo. Recently, the company announced that China Mobile Shanghai, Shanghai World Expo venue's first TD-LTE system has a permanent building Expo "Expo Center" officially opened.
China Mobile will be in the Expo Site TD-LTE network to achieve 100% coverage, the TD-LTE network coverage throughout the Expo area and across the Huangpu river park. This will be the world's first TD-LTE demonstration-scale network.
During the World Expo Shanghai Mobile will provide technology based on TD-LTE live high-definition, mobile Video Surveillance , High definition telepresence, high definition Virtual navigation that photo that transmission, and wireless high-speed Internet access and other special operations, full of "quasi-4G" wireless communication technology advantages. During the Expo, visitors can enjoy on the Huangpu River to bring 4G "Technology Expo" style.
4G speed: fast 3G10 times Currently, the global wireless communications business is undergoing a period of great change is imminent, a major trend in revenue from voice services is declining, and for Internet content and the rapid increase in the demand for downloading data. As the demand for data communication with the development of multimedia services, mobile data adaptation, mobile computing and mobile multimedia operational needs of the fourth generation mobile communication (4G) is emerging.
So, what is 4G? 4G could be called wide band (Broadband) access and distribution networks, wireless data technology that it represents the next stage of progress in the business, functional, and the 3G frequency bands are different in various fixed and wireless platforms and across network operating in different frequency bands to provide wireless services, 3G closer than personal communication.
4G mainly orthogonal frequency division multiplexing (OFDM) as the core technology, its technical characteristics of the network structure is highly scalable, with good noise immunity and resistance to multi-channel interference, can provide the quality of wireless data technology higher (high-speed, delay small) services and better cost performance.
Compared with 3G, 4G phones is not only a clear sound quality, but also high-definition video transmission, enabling high-quality three-dimensional image transmission, uses would be very extensive. Compared with the traditional communication technologies, 4G communication technology the most obvious advantage is that call quality and data communication speed, and. 4G phones more intelligent, more flexible communication, communication cost will be cheaper.
Speed is undoubtedly the greatest Aspect 4G, 4G or 3Mb per second generally provide higher average download rate, compared with the current 3G network provides average download speed is the speed of only about 1 / 10 . Transmission capacity of wireless communication networks will greatly improve greatly encourage the use of mobile phones in business and life services, and value-added features, it will bring a better future.
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