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天夜蒼真 wrote:
恩 應該是說目前中華...(恕刪)
大大正解，天啊，終於有人懂什麼是4G了。
4G又叫IMT-Advanced，為ITU-R所訂的規範，目前有兩個技術被ITU-R承認為4G，分別為LTE-A，及WiMAX R2。現在的LTE，應該只能算是3.9G，HSDPA為3.7G。
真正4G是A nominal data rate of 100 Mbit/s while the client physically moves at high speeds relative to the station, and 1 Gbit/s while client and station are in relatively fixed positions.，即移動時，傳輸速度為100 Mbit/s，靜止狀態的傳輸速度為1 Gbit/s 。
維基
LTE Advanced
LTE Advanced (Long-term-evolution Advanced) was formally submitted by the 3GPP organization to ITU-T in the fall 2009, and expected to be released in 2012. The target of 3GPP LTE Advanced was to reach and surpass the ITU requirements.[21] LTE Advanced is an improvement on the existing LTE network. Release 10 of LTE is expected to achieve the LTE Advanced speeds. Release 8 in 2009 supported up to 300 Mbit/s download speeds which was still short of the IMT-Advanced standards.[22]
WiMAX Release 2 (IEEE 802.16m)
The WirelessMAN-Advanced evolution of IEEE 802.16e was published in May 2011 as standard IEEE 802.16m-2011. The relevant industry promoting the technology gave it the marketing name of WiMAX Release 2. It had an objective to fulfill the IMT-Advanced criteria.[23][24] The IMT-Advanced group formally approved this technology as meeting its criteria in October 2010.[25]
現在的4G都是營運商在騙老百姓的商業術語。
相信自己：https://web.facebook.com/shawnyhc
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