3G - Wikipedia, the free encyclopedia 3G, short for third Generation, is the third generation of mobile telecommunications technology. 3G telecommunication networks support services that provide an information transfer rate of at least 200 kbit/s. Later 3G r ...
2G - Wikipedia, the free encyclopedia 2G (or 2-G) is short for second-generation wireless telephone technology. Second generation 2G cellular telecom networks were commercially launched on the GSM standard in Finland by Radiolinja (now part of Elisa Oyj) in ...
3G - Wikipedia, the free encyclopedia Later 3G releases, often denoted 3.5G and 3.75G, also provide mobile broadband ... EDGE, a revision by the 3GPP organization to the older 2G GSM based ...
2G - Wikipedia, the free encyclopedia 2G technologies enabled the various mobile phone networks to provide the ... and for Internet communication services such as email and World Wide Web ...
4G - 维基百科，自由的百科全书 从用户需求的角度看，4G能为用户提供更快的速度并满足用户更多的需求。 ... 仍 可以被認為是“4G”，但前提是它們是先行者，以IMT-Advanced的標準版本和改善的 性能和功能來看它只是相當於現在部署的3G網路的程度。 .... （3.5G, 3.75G, 3.9G） ...
3G - 维基百科，自由的百科全书 3G规范是由國際電信聯盟（ITU）所制定的IMT-2000規格的最終發展結果。 ... 另外有些3G系統服務業者會更新為3.5G系統（如HSDPA），此時可有下傳14Mbps、 ...
2.5G - 维基百科，自由的百科全书 2.5G是夾在2G與3G中間、手機通訊技術規格的過渡期。用來形容比2G連線 ... 2.5G 系統能夠提供一些在3G才有的特別功能，如包交换技術。 ... （3.5G, 3.75G, 3.9G） ...
4G - Wikipedia, the free encyclopedia A 4G system, in addition to the usual voice and other services of 3G, provides .... since the first move from 1981 analog (1G) to digital (2G) transmission in 1992. ...... or US$58,000,000, on developing 4G and even 5G technologies, with the goal ...
1G, 2G, 3G, 4G - IB Computer Science Retrieved from "http:// wiki.ibcsstudent.org/index.php?title=1G,_ 2G,_ 3G,_ 4G&oldid=2020" Navigation ...
2G - 维基百科，自由的百科全书 2G，是第二代（Second Generation）行動通訊技術規格的簡稱，相對於前一代直接以模拟信号的方式進行 ...
