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GSM AND UMTSNETWORKS

EVOLUTIO

TECHNOL

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PRESENTED BY: ADEEIQBAL

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THE GSM NETWORK 2G 2.5G

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WHAT IS GSM?

GSM is an abbreviation of Global System for Mcommunication, originally it is known as GSpecial Mobile. It is mobile telephony systemsets the standards on how m

telecommunications work. It encompaeverything in reference to mobile communica

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WHAT IS GSM?

GSM is a TDMA based wireless network techndeveloped in Europe that is used throughout mothe world. GSM phones make use of a SIM caidentify the user's account. The use of the SIM

allows GSM network users to quickly move phone number from one GSM phone to anothsimply moving the SIM card. Currently networks operate on the 850MHz, 9001800MHz, and 1900MHz frequency b

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WHAT IS GSM?

GSM is a second generation telecommunications technology which is launearly in the 90s. Eventually, it increased its sand added more functionality like General P

Radio System (GPRS) to the system wenhanced it to 2.5G status. 2.5G has data rateto about 144kbit/s.

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THE UMTS NETWORK 3G, 3.5G o

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WHAT IS UMTS?

UMTS is the third generation (3G) of mtelecommunications technology. It is the commercially available technology that mphones, PDAs, and smart phones are using t

With this development, internet access (emaiweb browsing), video calling and messaging,text messaging (SMS) are now possible alongtraditional phone tasks.

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WHAT IS UMTS?

People can now do the activities they normalwith an internet-connected home computer whithe trot. Imagine yourself traveling the world anable to email, video conference, and w

streaming videos using your smartphone. Currit can offer transfer speeds of about 3.6 Mbitssecond and even more, which can make transfer seamless and downloads relatively fast

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WHY UMTS?

Unlike GSM, UMTS is mainly based on C(Code Division Multiple Access) scheme andcombines it with TDMA. However, UMTS is stilas there are only a few areas and networks

support the technology. Even with countriessupport it may have set different spectrum, interoperability does not work fully when mfrom one nation to another nation with drastdifferent spectrum.

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ONE MAIN ADVANTAGE OGSM

There are also problems regarding the compatbetween UMTS and GSM, which frequently leconnections being dropped. But this is remedied by UMTS/GSM dual-mode devices.

that feature, UMTS phones that go out of Unetwork boundaries will be transferred to coverage. Transfer of network can happen mid-c

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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 newe

4. GSM is typically based on TDMA while UMTS is mCDMA-based.

5. Currently, GSM is still the most widely used techntoday while UMTS is still in its infancy, slowly creforward.

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THANK YOU