Intersystem handovers between gsm and wcdma 4, pp 255. Commonalities between cdma2000 and wcdma technologies executive summary this paper identifies common fundamental techniques underlying cdmaonetm, cdma2000 and wcdma technologies, as well as their. Cdma or code division multiple access is often found in the u. Currently, gsm is still the most widely used technology today while umts is still in its infancy, slowly creeping forward.
Global system for mobile communications, essentially the standard in mobile technology. What is the difference between hsdpa, wcdma and gsm. The main focus of this work is to evaluate the rate of transmission and spectral efficiency for gsm, wcdma, and lte on 900 mhz band. The cellular mobile service is being used everywhere in the world today. What is the different between hsdpa and 3g, gsm or dual. Data tranfer rate cdma has faster data rate as compared to gsm as evdo data transfer technology is used in cdma which offers a maximum download speed of 2 mbps. Gsm is in use by 76% of users as compared to cdma which is in use by 24% users. Feb 04, 20 this video is a brief explanation of the differences between gsm and cdma networks. Whether you use a cdma or gsm network, it does not matter. Whats the difference between 3g and 4g cellular systems. Lte standards are part of the latest 3gpp releases, which are considered as 4th generation 4g, and wcdma is the older technology which was specified as 3rd. Difference between gsm and umts difference between. To save battery life, im planning to switch from the automatic to the manual mode, and i want to know what happens if i stick to gsm or wcdma. Wcdma wideband code division multiplexing access and gsm are two technologies that are used in mobile telecommunications.
Commonalities between qualcomm incorporated october 2006. Sep 27, 2019 the cellular mobile service is being used everywhere in the world today. Nov 15, 2019 understanding the difference between cdma and gsm two hugely important standards for radio telecommunications is crucial before buying a new smartphone or switching carriers. Cdma2000 and wcdma were the most commercially successful.
They both have derivatives for use with 3g phones known as universal mobile telecommunications system and cdma2000, respectively. Another difference between gsm and cdma is in the data transfer methods. The gsm evolution to umts the gsm evolution to umts itu. Whereas, cdma stands for code division multiple access. These use sim cards in order to hold all of your data and to be able to connect to the network effectively. While carriers and manufacturers may promote their phones and services as 4g, the truth is that todays technologies are still in 3gmaybe 3. Difference between wcdma and lte compare the difference. The cdma is based on spread spectrum technology which makes the optimal use of available bandwidth. Gsmwcdma auto connect automatically switches between 2g3g modes. Key similarities between cdma2000 1x and wcdma 25 table 3.
The gsm association is an international organization of cellular carriers founded in 1987, provide coverage worldwide using the european etsi wireless standard gsm. Gsms highspeed wireless data technology, gprs general packet radio service, usually offers a slower data bandwidth for wireless data connection than cdmas highspeed technology 1xrtt, short for single carrier radio transmission technology, which has the capability of. As gsm is an international standard, so its better to use gsm in international roaming. The difference between the technologies you cited lies at different levels.
Gsm is typically based on tdma while umts is mainly cdmabased. Evolutionary analysis of gsm, umts and lte mobile network. Jun 02, 2017 the key difference between gsm and cdma is the multiple access method they use. Cdma, a proprietary standard designed by qualcomm in the united states, has been the dominant network standard for north america and parts of asia. Wcdma whereas, in gsm, each user select separate frequency channel and separate time slot in that channel to communicate. Gsm and cdma the cellular mobile service is being used everywhere in the world today. The key difference between the two is that gsm is a standard and cdma is a technology, but gsm, over the years has come close to attaining technological status. As gsm is an international standard, so its better plan to use gsm in international roaming. What is the difference between htc titan and htc radar.
It allows each user to transfer over the entire frequency spectrum all the time. So cdma is known to cover more area with fewer towers. Being newer and more advanced, wcdma is now the technology that people want and it is slowly being deployed in a lot of. The key differences between umts fdd and tdd are outlined in table 2. Comparison of gsm, wcdma and lte performance on 900mhz. It is based on the gsmedge and umtshspa network technologies.
Introduction lte difference between 4g and lte iitk wireless telecommunications is the transfer of information between two or more. Global system for mobile communications and code division multiple access are two competing standards in cellular service. What is the difference between of the following mobile. Cdma2000 downstream rate is 2 megabits second, through evdo, where gsm downstream rate is up to 384 kilobits second, through edge technology. The wcdma phones have added high speed packet access hspa that use higher level qam modulation to get speeds up to 21 or 42 mbs downlink cell site to phone and up to 7 andor 14 mbs uplink. Code division multiple access, not as prominent as it once used to be. When more mobile devices become wcdma capable, the load of gsm layers can be offloaded, while starting lte 1800 mhz refarming from urban towards suburban areas. Jul, 2011 wcdma wideband code division multiple access and lte long term evolution are mobile communication technologies that falls under the 3rd generation partnership project 3gpp releases.
Difference between gsm and 3g network technology compare. Among the two devices htc titan is the bigger and the heavier device. Wcdma vs gsm wcdma wideband code division multiplexing access and gsm are two technologies that are used in mobile telecommunications. Cdma and gsm are radio technologies and mobile phone is just an antenna to recieve these radio signals.
Wcdma mobility troubleshooting studies and enhancements core. Differences between gsm and wcdma network optimisation. Both devices are expected to be released by october 2011. Htc titan and htc radar are two windows phone 7 smart phones by htc officially announced in september 2011.
The traffic performance of integrated 3g wideband code division multiple access wcdma and gsmgprs network is evaluated. Understanding the difference between gsm and cdma will allow you to choose a carrier that uses the preferable network technology for your needs. Gsmwcdma auto, or gsm only setting on android phone. Cdma2000 success story in japan as of nov, 2003 total 3g sub. Sep 02, 2011 what is the difference between htc titan and htc radar. Itu imt2000 compliant 3g standards included edge, tdscdma, and wimax. Cdma evdo technology is also flawed in the sense that it cannot transmit voice and data at the same time, while gsm can transmit both. Difference between wcdma and hsdpa difference between. While there are technical differences in how each handles network traffic, for consumers the difference boils down to the fact that gsmbased smartphones store customer id data in sim cards. Gsm stands for global system for mobile evolution, developed based on 3gpp standards. Difference between gsm and cdma the worlds renowned mobile phone network technologies are gsm global system for mobile communication and cdma code division multiple access.
Cdma has faster data rate as compared to gsm as evdo data transfer technology is used in cdma which offers a maximum download speed of 2 mbps. What matters is the coverage from the cdma and gsm networks. Gsm, dcs, pcs and wcdma is designed and implemented on the bare pc board that is same size of the mobile. Wcdma, radio network controller, handover, troubleshooting. Radio access between the mobile terminal and the base station 2. The key difference between gsm and cdma is the multiple access method they use. When signal strength is low, 3g is favored more gsm only 2g only mode. What is the technical difference between selecting gsm and selecting wcdma in network mode settings menu. The complementary use of 3g wcdma and gsmgprs cellular. Dec 10, 2016 the gsm association is an international organization founded in 1987, dedicated to providing, developing, and overseeing the worldwide wireless standard of gsm. While, cdma depends on the evdo and svdo for its 3g technology. One example is handover between the new wcdma network and the existing gsm network, which can be triggered by coverage, capacity or service requirements. Ue rxtx time difference for a radio link included in the active set. Gsm network is consists of mobile station, base station subsystembts, bsc and networkmsc and operation subsystem.
Difference between wcdma and gsm difference between. In case of cdma, each device like a mobile phone or a wireless modem is given a unique code that is registered with the carrier. Before the advent of 4g lte, the obvious difference between gsm and cdma devices were with regards to the sim card. Jul 25, 2008 cellular carriers including sprint pcs, cingular wireless, verizon and tmobile use one or the other. Cellular carriers including sprint pcs, cingular wireless, verizon and tmobile use one or the other. Being newer and more advanced, wcdma is now the technology that people want and it is slowly being. Mbb modes like gsm or wcdma are measured to know 2g or 3g or 4g network. Independent characteristics of cdma2000 1x and wcdma. Luckily, us mobile has excellent cellular coverage using the best gsm and cdma networks in the us. Gsm global system for mobile communications is a standard set developed by the european telecommunications standards institute etsi to describe. The3g is both voice and data oriented with some enhancement of the offered. Umts boasts increased capacity over gsm for high bandwidth applications and. Apr 15, 2020 understanding the difference between gsm and cdma will allow you to choose a carrier that uses the preferable network technology for your needs. In gsm, the core network consists of two service domains cs circuit.
Gsm and cdma in hindi difference between gsm vs cdma. The gsm operates on the wedge spectrum called a carrier. For the purpose of this analysis, a simulator for edge and wcdma was developed, which allows a performance evaluation analysis. The first level is at the service each technology offers. These two technologies differ the way in which the calls and data transfer takes place over a network and mobile. Switching gsm phones between different networks is easier than with cdma phones. Commonalities between qualcomm incorporated october. Measuring performance of mobile broadband networks. Home technology communication access network difference between gsm and 3g network technology. I think this is a matter of opinion really, for me gsm gives me the ability to use an unlocked device and use it pretty much anywhere in the world which is not the same case for a cdma device, also as mentioned by tbaker, phone selection is so much greater. Gsm and cdma are two dominant technologies in the world of mobile communication. Wcdma stands for wideband code division multiple access, a mobile technology that improves upon the capabilities of current gsm networks that are deployed around the world. Difference between cdma and cdma pdf semantic scholar.
On the other hand, the download time of a large file is only defined by the. Now reliance is launching removable user identity module rium based cdma phones. However, the main focus is to differentiate between 3g and cdma. Cdma mobile communication standard uses, well the obvious cdma method. The main focus of this wor7 is to evaluate the rate of transmission and spectral efficiency for gsm, wcdma, and lte on 900 mhz band. 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. Pdf wcdma system standardization, interfaces and power control. Nokia siemens networks lte 1800 mhz introducing lte with. Gsm handsets came with a sim card slot, while cdma phones did not. For browsing the web, to watch videos and to download music, cdma is better choice as compared to gsm. Difference between htc titan and htc radar compare the. Gsm vs cdma whats the difference between the two technologies. This video is a brief explanation of the differences between gsm and cdma networks. The gsm association is an international organization founded in 1987, dedicated to providing, developing, and overseeing the worldwide wireless standard of gsm.
Gsmumts handover multimode terminals 1xrtt backward compatible 1xevdo not differences between w cdma and cdma2000. The major difference between the two technologies is how they turn voice data into radio waves and how the carrier. Aug 12, 2017 welcome guys, in this video we will see what is gsm vs cdma with best examples hindi mobile computing for gsm architecture in hindi click here. The main distinction between gsm and cdma is that in gsm, the customer information is put on a sim card which. People commonly refer to this technology as 3g, or 3rd generation, and it provides newer services like video calling to the traditional call, and text messaging features that are already standard. Earlier, users of both faced some problems like building penetration regarding their signals, due to which, they had to come out in the open to avoid signal disruption and. However, it still made it incompatible by deploying wcdma wideband cdma or umts universal mobile telecommunications service.
Whereas, gsm uses a combination of tdma and fdma methods. Gsm stands for global system for mobile communication, while cdma stands for code division multiple access gsm uses fdma frequency division multiple access and tdma time division multiple access. Wcdma wideband code division multiple access and lte long term evolution are mobile communication technologies that falls under the 3rd generation partnership project 3gpp releases. Gsm supports transmitting data and voice both at once, but cdma have not this feature. Gsm vs lte difference between gsm and lte lte vs gsm. Latest posts by ian see all difference between cp and cpk june 8, 2010. Backbone network the network evolution from gsm and radio access from utra the third generation mobile network evolved from the second generation systems such as gsm and gprs gsm. Wcdma 2100 mhz introduction and wcdma 900 mhz refarming are typically focused on different environments. Gsm took nearly 7 years to achieve a similar milestone3. The difference between these two is that gsm is a 2g technology and wcdma is a part of the newer 3g group of technologies. Gsm s highspeed wireless data technology, gprs general packet radio service, usually offers a slower data bandwidth for wireless data connection than cdmas highspeed technology 1xrtt, short for single carrier radio transmission technology, which has the capability of. Commonalities between cdma2000 and wcdma technologies table of contents.