Third generation (3G) networks were conceived from the Universal MobileTelecommunications Service (UMTS) concept for high speed networks for enabling a variety of data intensive applications. 3G systems consist of the two main standards, CDMA2000 and W-CDMA, as well as other 3G variants such as NTT DoCoMo's Freedom of Mobile Multimedia Access (FOMA) and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) used primarily in china
Data Speed
The data speed of 3G is determined based on a combination of factors including the chip rate, channel structure, power control, and synchronization.
An example of calculating the theoretical 3G data speed is as follows:
W-CDMA assigned code 400-500 Kpbs/code. 6 codes X 400 > 2Mbps (UMTS target for 3G data speed in fixed location)
Data Speed
The data speed of 3G is determined based on a combination of factors including the chip rate, channel structure, power control, and synchronization.
An example of calculating the theoretical 3G data speed is as follows:
W-CDMA assigned code 400-500 Kpbs/code. 6 codes X 400 > 2Mbps (UMTS target for 3G data speed in fixed location)
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