Making the switch from 3g to lte is a bittersweet change. Eps is divided into two parts lte part which deals with the technology related to a radio access network eutran and epc part which deals with the technology related to a core network. When you buy a smartphone, you are typically required to sign up for a service plan that defines a certain amount of calling minutes and data usage. Comparison 1g 2g 3g 4g 5g period 1980 1990 1990 2000 2000 2010 2010 2020 2020 2030 bandwidth 150900mhz 900mhz 100mhz 100mhz x bw pr. In fact, as it stands more on this later, when comparing theoretical top speeds, 5g is set to be 10x faster than 4g lte. Different eras of mobile communication are categorized into generations such as 1g, 2g, 3g, and 4g, where each generation has a number of technologies such as lte. Subnetworkdependent convergence protocol mapping, segmentation.
Lte architecture the infrastructure of an lte cellular network comprises the eutraeutran air interface and the evolved packet core epc, which includes the gateways, mobility management and subscriber databases. I am adding the architecture diagram of 2g, 3g, 4g for reference. Volte sip handset sip support, uac, uas, user agent, sipua, underlying lte network dedicated bearer, qci, default bearer, ims core network sip servers, pcscf, icscf, scscf, tas, bgw, mrf, atcf, atgw, mgcf, pstn breakin or breakout calls. Wireless telephone technology, wireless access, broadband, 1g, 2g, 3g, 4g, long term. Mobile 4g lte complements 3g to boost data capacity. In view of the far greater number of applications and facilities that it can perform, the decision was made to call it a user equipment rather than a mobile. Jan 12, 2014 3g vs 4g lte architecture rohit gupta. From theory to practice provides the reader with a comprehensive systemlevel understanding of lte, built on explanations of the theories which underlie it. 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. Advantages of lte disadvantages of lte long term evolution. Here, we break down the differences between 4g and lte. Later hsdpa,hsupa,hspa,lte and lte advanced were introduced consecutive releases from 3gpp. Difference between 3g and 4g technology with comparison. Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g.
The gsm architecture also contains an intelligent network. Later hsdpa,hsupa,hspa, lte and lte advanced were introduced consecutive releases from 3gpp. Lte and umb and then look into the details system architecture evolution the. Wcdma wideband code division multiple access and lte long term evolution are mobile communication technologies that falls.
As recently as mid2010, the networks for most wireless carriers in the u. Evaluating throughput and delay in 3g and 4g mobile. A usim stores userspecific data very similar to 3g sim card. However it is essentially the handset in the broadest. Mobile networks overview 2g 3g 4glte with focus on core network. Lte, which is the 4g technology, uses orthogonal frequencydivision multiplexing ofdm as underlying modulation and multiaccess technology and offers a flexible bandwidth architecture supporting up to a maximum of 20 mhz, which makes it possible to provide much higher data peak rates.
Access network eutran and long term evolution lte are used interchangeably in the sa working groups the term system architecture evolution sae was used to signify the broad framework for the architecture for some time the term ltesae was used to describe the new evolved system, but now this has become known as the evolved. In the next section we shall discuss about the various technical challenges and discuss in detail the key technologies which make the transition from 3g to 4g possible. Long term evolutionadvanced lte advanced and system architecture evolution sae are unified as 4g wireless network. When describing smartphone data networks, you commonly hear the terms 3g, 4g, and lte. Difference between 4g and lte compare the difference. Evolutionary analysis of gsm, umts and lte mobile network. Long term evolution protocol overview nxp semiconductors. A stable 3g network can outperform an unstable lte network. Lte architecture and interfaces linkedin slideshare. Feb, 2015 long term evolution lte 3gpp work on the evolution of the 3g mobile system started in november 2004. The ran is used to process all the radiorelated functions, while the cn is used to process all voice calls and data connections within the umts system, and implements the function of. With the deployment of new technologies still on the way, the era beyond 3g and 4g requires that cellular and radio technologies need to work together forming highly heterogeneous networks, therefore this paper analyses already existing cellular. Long term evolution lte 3gpp work on the evolution of the 3g mobile system started in november 2004. Once connected to the cellular providers network, the smartphone can communicate with the outside.
This table represents top and average speeds of each networks best version. Course contents historical vision lte capabilities system architecture 10. Comparision of 3g wireless networks and 4g wireless. Systems fplmts 1997 changed to imt2000 international mobile telecom. Longterm evolution system architecture evolution lte sae marketed as 4g specified by 3rd generation partnership project 3gpp is new mobile ge neration supersedes the 3. Longterm evolution timedivision duplex ltetdd, also referred to as tdd lte, is a 4g telecommunications technology and standard codeveloped by an international coalition of companies, including china mobile, datang telecom, huawei, zte, nokia solutions and networks, qualcomm, samsung, and stericsson. Network stability can also play a vital role in connection speeds. Standards specify how the airwaves must be used for transmitting information voice and data. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g.
Flexibility of 4g architecture for social networking 4g communication architecture will provide access through a collection of radio interfaces, seamless roaminghandover and the bestconnected service, combining multiple radio access interfaces such as wlan, bluetooth and gprs into a single network that subscribers may use. Volte ims architecture ims core cscf, tas, mrf, bgw. This refers to the generation of network technology. Nov 15, 2019 wireless standards are confusing it doesnt matter if youre talking about 4g, lte, or others. This document presents the lte network architecture as the first technical document of lte area. But its still no match, under ideal circumstances, to lte. Mar 05, 2018 volte ims architecture in simplified way. Mobile networks fundamental concepts and overview hamid. Oct 01, 2012 making the switch from 3g to lte is a bittersweet change. Dec 01, 2018 lte refers to long term evolution, and the architecture of the lte network is as following, the enodeb is the 4g site that the ue connects to.
The physical layer itself maintains the continuous connection model, especially on the downlink, where there is continuous transmission. The highlevel network architecture of lte is comprised of following three main components. Though umts supports both voice and data similar to gsm,certain standards for example hspa was targetted mainly for increasing the data rate capabilities of umts mobile terminalsdongles. Well now get substantially faster data speeds, but may have to keep an eye on your usage to avoid overages. They comprise an air interface between the users mobile device and the base station and two core networks. Lte provides a packet switched model at the sap, but retains a circuit switched model at the phy. When the 3g was introduced, cell phone users were finally able to talk and access data at the same time and with higher data rates. The voice can be transported using voice over lte protocols i. While 3g can be faster than lte in rare circumstances, the norm is that lte is much faster.
Lte sae architecture and concepts have been designed for efficient support of. Jul 10, 2017 3g and 4g can be differentiated concerning technology compliance, data transfer rate, capacity, ip architecture and number of connections, etc. Sae is an upgrade of the gprs core network, with the following differences. The source of these pictures are spirent and squaretek.
Lte uses scfdma in the uplink and hence mobile terminals can have low power during transmissions and hence battery life can be enhanced on user side. Difference between wcdma and lte compare the difference. Pdf comparative study of 2g, 3g and 4g researchgate. Enhancement of the utra optimisation of the utran architecture to ensure the continued competitiveness of the 3gpp technologies for the future lte was the first and only technology recognized by the next generation mobile network alliance to meet its broad requirements target deployment in 2010. The third generation network, known as 3g, is the oldest technology of the group. The infrastructure of 2g and 3g cellular networks are similar. Base station subsystem gprs protocol control plane. Wcdma including the ran radio access network and the cn core network. Lte 4g network architecture lte core network mobile. This keeps information about the users phone number, home network identity and security keys etc. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low.
The difference between 3g and lte difference between. The lte network called eps evolved packet system is an endtoend e2e all ip network. Lte architecture article about lte architecture by the free. Most measurements 47 for lte and 36 for gsm3g were less than % % 1 % 0. As lte supports mimo, higher data rate can be achieved. Network architecture for lte and wifi interworking tunneling technology for mobile network related blogs wired access network ftth, dsl, ethernet, hfc, etc user mobility in wired network sipyoutube dip10. Cdma enables users to share the same frequency and communicate at the same time. Following diagram shows the functional split between the eutran and the epc for an lte network. Mar 25, 2019 5g is set to be faster that all its predecessors by a ton. This allowed for a better full service for cell phone users wishing to access the.
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