Femtocell lte global positioning system radio technology. More details about this architecture can be found in 1. This document describes the key features of the 3gpp2 femtocells that have. The hns is interfaced with msc using lucs interface for circuit switched services. In telecommunications, a femtocell is a small, lowpower cellular base station, typically. These all broadly conform to an architecture with three major elements. Evolution of voice services including legacy circuit voice services toward an allip architecture based on session initiation protocol sip and ip multimedia subsystem ims 2. Ue henb henb gwlte mme sgw hss csg list srv s1 s6a uu s1mme s1u s11 vplmn. It connects to the service providers network via broadband such as dsl or cable. It connects to the service providers network via broadband. It details exactly what operators need to consider in order to make the most prudent architecture choice, based on their specific business and technology circumstances. Results are provided for enterprise location in cell site left and cell edge right.
Very good multipath signal factor and nxn mimo increases data rate. Section 4 discusses proposed femtocell architectural arrangements. Reduce the tra c load of macrocell or other femtocell, increase network capacities. In telecommunications, a femtocell is a small, lowpower cellular base station, typically designed for use in a home or small business. To provide services to the end users having a femtocell base station, it is necessary for the operators to define the architecture for a femtocell based on the type of cellular network. The femtocell network architecture supports the following key requirements. These threats include attacks from the internet directed against the fap subscribers who compromise the. A detail presentation of the past, the present and the future of the femtocell technology has been studied and considered from the perspective of the lte straight to lte advanced. Improving 4g coverage and capacity indoors and at hotspots with lte femtocells 5 3. It is basically an access point through which role of femtocell is accomplished. Femtocell architecture the femto access point fap is a hardware device located at the customers premise that interfaces with mobile devices overthe air radio interface. A design goal of femtocells is to be plugandplay ready. Femtocell servers around 45 subscribers so large resources are available per user.
It details key factors that operators need to consider in order to make the most prudent architecture choice, based on their specific business and technology circumstances. With femtocell technology, new services will be available to the user, mainly related to the increased available bandwidth. Efficient mobility management in lte femtocell network. Figure 2 illustrates the current architectural definition for henb. The reference architecture is shown in the following draft spec. For communication and information exchange between henbs. Evolution lte deploymentsfemtocells, picocells and microcells. Femtocell architecture line telephone and designed to connect any mobile 1. Femtocells are enterring the next phase of their technology and market development. This is responsible for configuring and managing the various femtocell components, especially autoconfiguring the faps. Femtocell definition femtocell is a small cellular base station, designed for use in residential or enterprise. Femtocells benefits, challenges and deployment scenarios. The femtocell can handle 2 to 5 mobile phones in a residential setting. Oct, 2016 a femtocell is therefore an indoor base station that allows you to make phone calls with your mobile cellular using the internet service avaialble locally.
Based on this, td lte femtocell and fd lte femtocell exists. It also gives a depth view of 3g and lte long term evolution femtocell architecture. We use successive interference cancellation to allow a macrocell user and femtocell user to share a common channel and establish a link with the femtocell access point. Dsl standardisation body objective is to reuse tr069 framework for zerotouch provisioning of femtocell access point. The first application of femtocells is phone calls,which will be free or at a low price. The femtocell is the most recent evolution of the mobile network base station. The standard was part of 3gpp release 8 and paved the way for interoperability of femtocell equipment and the subsequent economies of scale. Traditionally, macrocellular networks require complex and expensive manual. May 17, 2011 the report finds that the three femtocell architecture options outlined in the lte standard comprehensively support a wide variety of operator deployment scenarios. This series of articles explains what sip and ims are, how they might find their way into mobile and other networks, and how this relates to femtocells.
Sip femtocell architecture part 3 system technology. Spectrumharvest is a novel architecture that manages spectrum access in. Responsible for registering user devices and for ensuring qos hss home subscriber server. Mobile femtocell architecture with its layering system. In addition to being the smallest in the family of small cell technologies, femtocells also use the lease amount of power. Nov 11, 20 pros and cons of using femtocells by scott reeves in data center, in data centers on november 11, 20, 6. The report finds that the three femtocell architecture options outlined in the lte standard comprehensively support a wide variety of operator deployment scenarios. Similar to the 3g femtocell market, lte femtocell silicon will. It is interesting to note that the characteris tics just. Next, it discusses wireless protocols, optimization of femtocell coverage, and rf interference. In telecommunications, a femtocell is a small cellular base station or a wireless access point that is typically used to improve indoor cellular reception inside a home or small business. Its aim is to provide dedicated indoor coverage, bringing significant improvement in enhanced coverage and improved call quality and data rates. The mobilefemto architecture in lte system is as shown in. Low capex and opex, femtocell does not require change the framework of network.
The femtocell connects back to the carrier via your highspeed internet connection, a dsl line, or a cable tv link. Femtocells, femtocellular network architecture, femtocellmacrocell integration. Femtocells reduce the load and congestion on macrocell networks by introducing ip as a backhaul for voice and data. In ltea network, a macrocell refers to the radio coverage of an evolved nodeb enb, and a femtocell also called a small cell refers to that of a home evolved nodeb henb. Handles multiple realtime ip based services voice, imm, streaming video, etc. Technology and developments wireless information theory summer school, centre for wireless communications, oulu, 29. Cpich ecio of 16db or greater is an indication of good.
This is a small base station designed to be installed at home. Whats needed to roll out a sip based femtocell network, and what are the advantages. A study of femtocell architecture for long term evolution lte advanced network mr. Some modifications of existing network and protocol architecture for the integration of femtocell networks with the existing umts based. This survey first presents the architecture of the femtocell, successful deployments, and applications for residential and commercial use. In may 2008 a major milestone was achieved by the members by agreeing on a single architecture. Arm makes no representations or warranties, either express or implied, included but not limited to, warranties of merchantability, fitness for a particular purpose, or. This book provides an indepth guide to femtocell technologies. Handover between macrocell and femtocell for umts based. Oct 23, 2010 therefore the femtocell network architecture must be scalable to grow into such large networks, while at the same time maintaining reliability and manageability. Lte femtocell architecture lte femtocells are supported within 3gpp as early as release 8 2008, and are identified as home enodebs henb. Lte femtocell roadmap from concept to reality radisys white paper 2 integrated silicon silicon provides the heartbeat of the lte base station and for femtocell devices is both a critical challenge as well as an opportunity for differentiation. The impact on handset design with respect to worth, measurement, and power consumption cellular candidate radio entry utilized sciences that help in femtocell deployment, along with 3gpp lte system analysis, along with indoor path loss fashions and 3gpp rf requirements femtocell network construction and. Femtocell network architecturelte,wimax,3g architecture.
London, uk the femto forum, the independent industry and operator association that supports femtocell deployment worldwide, has published an operator friendly guide to the lte femtocell architecture options in the 3gpp standard. This embedded trace macrocell architecture specification is provided as is. The heading indicates that there is more to come in this series so perhaps this is jumping the gun, but 3gpp2 is well into its effort to standardize a sipbased femtocell solution publication target is 4q2009. The total transmit power, in dbm, is shown in the box next to the femtocell location. It connects to an internet service providers network through broadband using cabledslfiber optic connection etc. Student of department of computer science and engineering, amity university, india. Also explore the seminar topics paper on femtocell with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year computer science engineering or cse students for the year 2015 2016. Note that the remainder of section 3 utilizes technologyspecific. A femtocell is the smallest type of small cell used to expand cellular network connectivity within a targeted geographic area typically a small, single location. As shown the hnshome nodeb subsystem is composed of hnbhome nodeb and hnbgwhome nodeb gateway. The results are similar across all the phone models.
In section 3, functionality of different components of the 4g femtocell network is explained. The cell boundary control feature is discussed in later sections of this paper. As is shown in the diagram there are two options for lte. A femtocell is a tiny, lowpower cellular base station that is specially designed for residential space or small businesses. Femtocells improve the lte business case while also providing the best possible user experience. Explore femtocell with free download of seminar report and ppt in pdf and doc format. Architecture and protocols by gavin horn 2 qualcomm incorporated 5775 morehouse drive san diego, ca 921211714 u. Pdf handover management scheme in lte femtocell networks. The femtocell network architecture describes the major nodes and connections in a femtocell network, and how they achieve the objectives of mobile subscribers and operators. Having femtocells autoconfigure allows wireless service providers the luxury of having the end customer install the fap directly without. The main benefits to using femtocell technology is an overall increase in call quality. A femtocell is a wireless access point that improves cellular reception inside a home or office building. This white paper aims to provide an understanding of femtocell technology. Note that the remainder of section 3 utilizes technologyspecific terminology.
The femtocell access points themselves, which embody greater network functionality than found in macrocell basestations, such as the radio resource control functions. Past, present, and future article pdf available in ieee journal on selected areas in communications 303 april 2012 with 2,869 reads how we measure reads. It is the basic node of femtocell which place in user site such as offices and home. The figure depicts 3g femtocell architecture in utran network as per umts specifications.
It supports ofdma modulation in the downlink and scfdma modulation in the uplink. Umts operators are not really considering sip until it is defined in the 3gpp architecture. Femtocell design 3g and lte radio access technolgies femtocell system analysis femtocell architectures voip fundamentals media protocols over ip femtocell security solutions quality of service ims network architecture. Femtocell radio technology introduction a femtocell is a small, lowpower cellular base station, typically designed for use in a home or small business. The highlevel network architecture of lte is comprised of following three main components. Note that, even for buildings without many inner walls, it is generally true that the. The new paradigm introduced by femtocells also brings unique challenges, namely i unplanned deployment, ii userinstallation, iii restricted access. Nov 25, 2016 more and more telecommunication companies are interested in the femtocell technology, as this allows them to give customers a capacity higher than that available with traditional networks. Although there are many advantages in femtocell, it still has some issues. Femtocell applications allow consumers to access a wide variety of services from home or office networks, mobile operators and the web that make life simpler. Figure 2 shows the architecture for supporting circuitswitched cs voice service via a femtocell. A usim stores userspecific data very similar to 3g sim card.
Femto forum outlines lte femtocell architecture options as. Generally, a mobile phone user can switch itself to the core network either by connecting itself to the femtocell or macrocell. This section describes two architectures for femto systems as specified by 3gpp2. Femtocell architectures with spectrum sharing for cellular.
Femtocell tutorialarchitecture,interference,handover,testing. Pdf in this paper we consider a heterogeneous lte network where femto cells. Handover management scheme in lte femtocell networks article pdf available in international journal of information technology and computer science 53. Each individual unit will cover up to 30,000 square feet, but an unlimited number of devices can be installed. This book provides an indepth guide to femtocell technologies in this book, the authors provide a comprehensive and organized explanation of the femtocell concepts, architecture, air interface technologies, and challenging issues arising from the deployment of femtocells, such as interference, mobility management and selforganization. However, unlike the 3g femtocell, there is currently no defined architectural standard in place. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Femtocells support the same voice and broadband data services that mobile. Feb 20, 2020 explore femtocell with free download of seminar report and ppt in pdf and doc format. Note that the remainder of section 3 utiliz es technologyspecific. In the iuh architecture, the femtocell gateway sits between the femtocell and the core network and performs the necessary translations to ensure the femtocells. Defining standards femtocell architecture and interface for 3g and lte. Shinde me student, department of electronics and telecommunication engineering, vishwabhrati academy college of engineering, savitribai phule pune university, ahmednagar 414201ms, india. In the sip architecture, the femtocell connects to a core network of the mobile operator that is.
It connects to the handsets ues via existing uu interface and to the hnbgw via new iuh. The verizon 4g lte network extender for enterprise supports 4g lte only, for up to 64 simultaneous active users, and up to 300 idle users. A broader term which is more widespread in the industry is small cell, with femtocell as a subset. They are now positioned for mass market rollout especially in the developed nations. Pdf femtocells are small, userinstalled base stations that enhance coverage for inbuilding cellular services. The femtocell network architecture is shown in the following picture from the femto forum. Figure 1 3gpp femto architecture hnb supports nodeb and rnclike functions. It can usually accommodate calls from up to four cell phones. Note that a victim mue is often easy to detect because it likely transmits with.
This keeps information about the users phone number, home network identity and security keys etc. As shown in the figure2, the femtocell network consists of femtocell in the office or home or apartment premises and macro cells in the outside. In this book, the authors provide a comprehensive and organized explanation of the femtocell concepts, architecture, air interface technologies, and challenging issues arising from the deployment of femtocells, such as interference, mobility management and selforganization. It connects to the handsets ues via existing uu interface and to the hnbgw via new iuh interface. It is based on a modified version of the existing iu interface, adapted and customized to the unique needs of the femtocell. Lte femtocell roadmap from concept to reality radisys. Sip femtocell architecture part 1 system technology.
The current focus for 2009 in the 3gpp mobile standards body is defining a sip architecture in release 9 using an ims femtocell approach. Femtocells are small, userinstalled base stations that enhance coverage for inbuilding cellular services. Easily install, femtocell is able to play and play, once it was activated by operator. Refer lte tutorial for lte system basics and architecture interfaces. Finally section 5 contains the conclusion of this paper. Embedded trace macrocell architecture specification. A femtocell connects to the carriers network via broadband and can support up to five mobile phones. In the standard lte radio access network ran, the x2 interface provides for radio and handover coordination among cells, but. This paper also provides some other scenarios related to handover and. Detailed architectural diagrams illustrate various deployment options.
Figure 1 illustrates 3gpp femtocell architecture described in this section. Common elements of the femtocell network architecture as shown in figure 1 there are three network elements that are common to any femtocell network architecture. Cuttingedge femtocell design and implementation techniques this indepth resource provides comprehensive coverage of femtocells and how they integrate with existing 3g and emerging wireless protocols and standards. The femtocell concept is applicable to all standards, including gsm, cdma, wcdma, wimax and lte solutions. This allows much greater autonomy within the femtocell, enabling selfconfiguration and selfoptimisation. This further reduces interference within the femtocell layer. Improving 4g coverage and capacity indoors and at hotspots.
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