WCDMA vs GSM
WCDMA (Wideband Code Division Multiplexing Access) and GSM are two technologies that are used in mobile telecommunications. The difference between these two is that GSM is a 2G technology and WCDMA is a part of the newer 3G group of technologies. Being newer and more advanced, WCDMA is now the technology that people want and it is slowly being deployed in a lot of areas that are already being occupied by GSM. Sooner or later, the WCDMA network would equal the coverage of GSM, making the GSM network redundant. With this said, it is clear that the GSM network is slowly being phased out and replaced with the newer and better WCDMA. But for now, GSM is still the most widespread technology that is used in the whole world. Surpassing all other 2G and 3G alternatives.
The acronym GSM is a mobile communications system and means “Global System for Mobile Communications”. GSM supports data rates of max. 14.4 kbit / s GSM is the successor system of A, B and C networks and is commercially available in Germany since 1992. The Global System for Mobile Communications (formerly Groupe Continue reading What is GSM, EDGE, GPRS, UMTS 3G, HSDPA. Does OnePlus 2 “DUAL SIM 4G” support dual 4G? Ask Question Asked 4 years ago. You appear to claim that either SIM slot can be used for 4G, which is technically true; but in reality, there is only one 4G radio, so, if you have no 2G GSM networks to access, then you can only go online with one slot at a time.
The primary reason why telecommunications companies are having problems with rapidly deploying is the difference in the frequency bands they use. Because of this, GSM only phones, cannot communicate with WCDMA only networks and vice versa. In order to circumvent this, it has become common for most phone manufacturers to include multiple frequency bands for both 2G networks and 3G networks. This ensures that their mobile phones can be used in almost any network and any location in the world. Telecommunications companies need to deploy a WCDMA network over their existing GSM network to provide 3G services while still maintaining compatibility with older mobile phones that are not compatible with WCDMA.
Although WCDMA support has become quite common in most mobile phones, there are still some models that do not support it. When you are buying a mobile phone, you should look at its specifications in order to make sure that it supports WCDMA and the frequencies available in your area. This is to ensure that you can use it in your country’s networks. Even non-GSM networks are choosing to add WCDMA support as it is the most popular 3G technology. Sooner or later older and competing network standards, namely GSM, CDMA, and EV-DO, would probably be phased out and replaced with WCDMA.
Summary:
1.WCDMA is a 3G technology while GSM is a 2G technology
2.GSM is slowly being phased out in favor of CDMA
3.GSM is still more widespread than CDMA
4.WCDMA and GSM uses different frequency bands
5.WCDMA offers much faster data speeds than GSM
6.WCDMA would soon replace GSM
Ben Joan
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GSM vs UMTS
GSM is an abbreviation of Global System for Mobile communication, originally it is known as Group Special Mobile. It is mobile telephony system that sets the standards on how mobile telecommunications work. It encompasses everything in reference to mobile communications.
However, in this context of comparing GSM and UMTS, we will refer to GSM as a service or technology. GSM is a second generation (2G) telecommunications technology which is launched early in the 90s. Eventually, it increased its speed and added more functionality like General Packet Radio System (GPRS) to the system which enhanced it to 2.5G status. 2.5G has data rates up to about 144kbit/s. It typically uses a variation of Time Division Multiple Access (TDMA).
Today, in a global scale, GSM is still widely used mobile service. There are about 700 mobile networks that provide GSM services across more than 200 countries. Statistically, more than 80 percent of all global mobile connections are GSM. With GSM, subscribers can still continue using their mobile phones when traveling to other countries because GSM network operators have expansive roaming agreements with foreign operators.
UMTS is the third generation (3G) of mobile telecommunications technology. It is the latest commercially available technology that mobile phones, PDAs, and smart phones are using today. With this development, internet access (email and web browsing), video calling and messaging, and text messaging (SMS) are now possible along with traditional phone tasks.
People can now do the activities they normally do with an internet-connected home computer while on the trot. Imagine yourself traveling the world and still able to email, video conference, and watch streaming videos using your smartphone. Currently, it can offer transfer speeds of about 3.6 Mbits per second and even more, which can make data transfer seamless and downloads relatively fast.
Does Umts Slot Support Gsm Phone
Unlike GSM, UMTS is mainly based on CDMA (Code Division Multiple Access) scheme and now combines it with TDMA. However, UMTS is still new as there are only a few areas and networks that support the technology. Even with countries that support it may have set different spectrum, thus interoperability does not work fully when moving from one nation to another nation with drastically different spectrum.
There are also problems regarding the compatibility between UMTS and GSM, which frequently led to connections being dropped. But this is being remedied by UMTS/GSM dual-mode devices. With that feature, UMTS phones that go out of UMTS network boundaries will be transferred to GSM coverage. Transfer of network can happen mid-call.
Summary:
1. UMTS has faster data transfer rates than GSM.
2. GSM is 2G and 2.5G while UMTS is already 3G.
3. GSM is a rather old technology while UMTS is newer.
4. GSM is typically based on TDMA while UMTS is mainly CDMA-based.
5. Currently, GSM is still the most widely used technology today while UMTS is still in its infancy, slowly creeping forward.
Umt Box Gsm Forum
Ian
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