In order to reduce capital expenditures capex for lte operators, most equipment vendors are developing lte enbs using generic, off the shelf platforms such as atca, microtca, and amc in picmg. Proprietary platforms have been used until the 3g3. Introduction to evolved packet core to cvtdallas online. The lte network architecture rmd engineering college. Similar architecture as the macro cell base station optical fiber and cat5e lan cable advantage. Running as an application on a standard linuxbased operating system, srsue connects to any lte network and provides a standard network interface with highspeed mobile connectivity. It is the hardware that is connected to the mobile phone network that communicates directly wirelessly with mobile handsets, like a base transceiver station bts in gsm networks. Lte labkit lab enodeb and lte callbox for iot production. Lte base station enodeb building baseband unit provide the physical interface between. Lte radio interface outline 1 introduction 2 lte architecture 3 lte radio interface 4 multimedia broadcastmulticast service 5 lte deployment considerations. Rapid development of various communication technologies, both fixed and mobile, has caused, first of all, an increased interest in accessing the internet. Lte5gnr ue lte enodeb 5gnr gnodeb 4g core network ue mn.
Lte architecture ahmed hamza long term evolution lte a tutorial october, 2009 12 48. This video tutorial talks about lte architecture in detail to give holistic view of lte architecture. Lte mobile communicates with just one base station and one cell at a time and there are following. The lte labkit is a lab enodeb running on a small factor pc computer that has. Clearly, a technology disruption is needed to facilitate integration of multichannel, high. Depending on how the enodeb functions are split, the architecture also allows for ethernet and ip fronthaul transport.
The radio protocol architecture for lte can be separated into control plane architecture and user plane architecture as shown in figure 3 and figure 4. This document provides a brief overview of the lte network architecture as the first technical document of lte area. Ieee communications magazine september 20 7 figure 1. The highlevel network architecture of lte is comprised of following three main components. Excellent video describing the evolved packet core used in lte networks. The application note series explores lte advanced lte a release12 rel12 features and the impact on enodeb. Lte security trends and requirements lte architecture from an architecture perspective, the major difference between 2g3g and lte is in the access network, or ran. Signaling and tunneling protocol for data between enodeb. The base station that is communicating with a mobile is known as its serving enb.
A new interface x2 interface has been defined between enodeb, and all the other enodeb s and all of them may be possibility linked together. This website uses cookies to improve your experience while you navigate through the website. Named as lte long term evolution, the 4g system architecture is made up. Volte service description and implementation guidelines. Lte is a 4g wireless communications standard developed by the. Nr sss ue acquires the 5gnr secondary synchronization signal. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website.
Lte network knowing basic equipment used in the network. Eutran node b, also known as evolved node b abbreviated as enodeb or enb, is the element in eutra of lte that is the evolution of the element node b in utra of umts. In lte architecture, evolved utran eutran is an important role which is the air interface of lte upgrade path for mobile networks meanwhile it is accompanied by an evolution of the nonradio aspects under the term system architecture evolution sae, which includes the evolved packet core epc network. Lte is the next generation of technology which is backward compatible with cellular technologies such as hspa,gsm,cdma etc. The huge role of the internet in todays world of information exchange is undeniable. Each enb is a base station that controls the mobiles in one or more cells. Pdf survey on lte network architecture and its security aspects. Lte which is known as 4g technology is being specified in release 8 and 9 of the 3gpp standard. Lteadvanced release12 shapes new enodeb transmitter.
Key technologies to support lte lte is the standard for wireless communications specified by the 3rd generation partnership project 3gpp, a standardization. Lte 4g network architecture lte core network mobile. The video describes the roles played by the major lte components. Lte mobile optimization a definitive guide white paper. Basic lte architecture video eutran, enodeb, epc, sgw, pgw, mme, hss, pdn by telcoma global.
One of the biggest differences between lte networks and legacy 3g mobile communication systems is the base station. Srsue is an lte ue modem implemented entirely in software. Lte architecture including role of the enodeb in the network and key concepts. Pdf title page tdd enodeb lte parameters user guide lte. Pdf mobile technology has emerged the needs for wireless communication over various generations of wireless technologies with upcoming. The are covered by a single enodeb is split into one or more typically 3 cells. The application notes reveal how analog integration can overcome design challenges arising from the latest 4g developments. An adtran white paper 4glte mobile backhaul reference. 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. Nr pbch mib ue acquires the 5gnr broadcast channel. Rbs cold start functionality transient protected ecbus ports for external connections.
Barth all rightsreserved2006, alcatel 2 outline 3g lte introduction. Long term evolution lte is the next generation 3gpp radio access network evolved umts terrestrial radio access network eutran system architecture evolution sae is the 3gpp next generation standard for mobile networks providing. Interface for smoke detector, external alarms, cabinet lamp, doorswitch, temperature sensor, and heaters. Since there is no rnc, the enodeb has inherited some of the functionality of the other stations in the access network.
A usim stores userspecific data very similar to 3g sim card. Nr rach preamble msg1 the ue initiates the randomaccess procedure with the 5g gnodeb. Lte eps architecture overview lte long term evolution. The lte network overview the 3gpp 3rd generation partnership project developed the lte standard in its release 8 document series. Lte enodeb labkit unboxing, setup and configuration video with david burgess, founder of yatebts. Main functionalities of each network node are discussed in detail along with examples. Voice over lte, or volte is a gsma profile of the standards definition for the delivery of services currently provided via circuit switch networks mainly voice and sms over the packet switched only network of lte, leveraging the core network ip multimedia subsystem ims. Executive summary this paper provides a comprehensive overview of the network architecture of a long term evolution lte system according to the release 8 version of the specifications. In 3g systems, there is an intelligent and centralizing node like the rnc radio network controller, and it needs to control all the radio resources and mobility over multiple nodebs 3g base stations underneath it in a hieratical radio access network. Lteadvanced release12 shapes new enode transmitter. Long term evolution advanced lte advanced network is the continuation of 3gpp lte 3gpp. Title page tdd enodeb lte parameters user guide lte parameters user guide lpug lpug. This keeps information about the users phone number, home network identity and security keys etc.
Overall management of the radio bearers is performed by the mme, but the implementation is achieved at the enodeb broadcast of system information and paging messages is also included in rrc. Pdf the era of new wireless communications is upon us. Dcs nideag metro network mplsethernet ipmpls csr core csr bsc msc mme pdsn sgw metrocellmicrocell nxt1e1, ds3, oc3. First, the lte network reference model is defined and its basic evolved packet system eps entities and the functions of each entity are. Lte security for mobile service provider networks white paper 2015, juniper networks, inc. The application note series explores lte advanced lte a release12 rel12 features and the impact on enodeb radio frequency rf transmitters. The eutran in lte architecture consists of a single node, i. Increased bandwidth endtoend ip simplified architecture. According to different service requirements, fiberoptic cable availability and network resource allocations, ran real time and nonreal time resources can be deployed on the site or on the access cloud side. Summary introduction to wireless lte 4g architecture and key. It describes the role of the enodeb in the network and key concepts such as. The lte network architecture strategic white paper 1 1. Lte sae architecture is driven by the goal to optimize the system for packet data transfer. The lte labkit used as a lab enodeb allows the easy and stable development of experiments and test procedures with the yateenb.
Outdoor lte infrastructure equipment enodeb fujitsu. Typical mobile network architecture with mobile backhaul network portion highlighted. Lte enodeb s1 startup, mibsib broadcast and rrc connection learn about enodeb startup. Basic lte architecture video eutran, enodeb, epc, sgw. Lte tutorials and call flows long term evolution signaling flows and tutorials for lte protocol layers lte call flows. Oeb305800 enodeb lte v100r007 initial configuration by cme. The 3g rnc radio network controller inherited from the 2g bsc base station controller has disappeared from eutran and the enodeb is directly connected. Ltea rel12 shapes new enodeb transmitter architecture. Altiostar vran solution is a pioneering softwareintensive lte enodeb with ethernet fronthaul that improves performance, reduces costs, and simplifies infrastructure expansion while. When mobile networks deploy lte radio access technology, conformity to. Eutran node b, also known as evolved node b, abbreviated as enodeb or enb is the element in eutra of lte that is the evolution of the element node b in utra of umts. The mme is responsible for ue registration, session management, mobility man. Pdf 4g is new wireless technology developed by the third. This page offers information about long term evolution lte, its architecture and components.
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