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TD-SCDMA, TDD and FDD
Posted on 15. Sep, 2009 by LteWorld
in Blog, CDMA, LTE
September 15,2009 | 3G and 4G Wireless Blog - After my posting on TD-SCDMA so many people asked me about what TD-SCDMA is. I am surprised that so many people are not aware of TD-SCDMA. So here is a quick posting on that.
Basically most of the UMTS networks in operation are Frequency Division Duplex (FDD) based. There is also another variant called the Time Division Duplex or TDD. In reality there is more than one variant of TDD, so the normal 5MHz bandwidth TDD is called Wideband TDD of WTDD.
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