Are you planning to buy your the latest mobile device for fastest data experience? Do you know LTE – TDD and FDD both in one devices are available in the market?? Here I’m going to give you few tips will be needing to enhance your knowledge about the latest technology,
LTE is the formal name for 4G, meaning Long Term Evolution. But similar to America’s different, incompatible GSM and CDMA phone systems, there are two different standards for LTE — TDD and FDD. The good news is you can make phones that are compatible with both standards now.
This video below shows how Nokia achieved one of the highest 3.8 Gbps throughput, at Mobile Asia Expo 2014.. wooow!!!
These two abbreviations, TDD and FDD stand for ‘time-division duplexing’ and ‘frequency-division duplexing’. They’re two different methods of cramming data and phone calls into the connection to your friendly local phone tower.
Duplexing is just where your phone can transmit and receive at the same time, unlike a walkie-talkie, which can only do one at once (this is called simplexing). TDD means the transmission and reception occur on the same frequency, but each only for a split second, alternating between the two. That’s great for mobile Internet use, because you can use more of the bandwidth available for either downloading or uploading, whichever you happen to be doing.
FDD, meanwhile, means you’re using a slightly different frequency for uploading and downloading. The benefit of this method is less possible interference — better reception. It’s unclear which standard gives faster downloads, and it would be difficult to eliminate all the possible variables to produce a meaningful answer.
A consideration of TDD-LTE and FDD- LTEE by Dan Warren, PhD. Senior Director of Technology, GSMA
What does this mean for you?
The real difference between the two systems is where they’re used, and therefore where you can use your 4G phone. Here in Sri Lanka mobile devices capable of LTE still using FDD technology (Dialog, Mobitel) while Fixed LTE devices use TDD technology( Dialog, SLT, Lanka Bell).
“While the majority of the global LTE market is based on FDD-LTE technology, TDD-LTE, the alternative LTE technology, is expected to see increased adoption in the US, China, Australia, Middle East, Northern and Eastern Europe, and Southwest Asia, and to gain a more pronounced position in the global LTE market,” Samsung says. “Seamless handover between FDD-LTE and TDD-LTE networks is a critical feature for end-user customers and mobile operators, especially in markets where the both technologies are deployed.”
China’s biggest phone company, China Mobile, is rolling out TDD, and industry watchers expect it to expand around the world. Australian network Optus has both, but because it’s such a big country the spectrum is divided up by region and in the capital, Canberra, it can only supply TDD.
This kind of fragmentation is likely to become more common, as Samsung says, as networks put in place agreements to allow 4G roaming, and people upgrade their phones and are willing to pay for 4G on their holibobs. So phones like the new S4 and S4 Mini that can nimbly swap between the two will become important for glamorous global jetsetters like you, dear reader.
Here we have the list of countries and the operators who have already deployed LTE technology, it’s great to see three mobile operators are already there in the list!! 🙂 We can be proud!!
There are some devices developed by different mobile manufacturing companies with both TDD and FDD technologies are inbuilt (Samsung,Apple, Huawei, Sony, Asus, etc). It is a great opportunity for mobile operators in Sri Lanka which has already deployed both the technologies, let’s hope to see some super fast internet experience on the go asap!! But with the new tax imposed by the government, I doubt the mobile operators are that much keen on developing the technology with such a high burden.
Below are some of the devices which both support TDD and FDD
( Source : http://www.gsmarean.com) you may click on the device to see further specifications.
Keep in touch till another update from tronication 🙂
Very useful article Buddhika. Thanks for sharing all the info.