30-08-2011, 02:18 AM
hi ,myself CHETAN SHARMA .i urgently need a complete seminar report on "femtocells". i am not getting full report on this topic,so please provide me a full report on it.i shall be highly thankful to you.
30-08-2011, 02:18 AM
hi ,myself CHETAN SHARMA .i urgently need a complete seminar report on "femtocells". i am not getting full report on this topic,so please provide me a full report on it.i shall be highly thankful to you.
30-08-2011, 09:28 AM
To get more information about the topic " femtocells " please refer the link below
https://seminarproject.net/Thread-femtocells-technology https://seminarproject.net/Thread-femtocell
29-02-2012, 03:29 AM
pleasse send me ppt @ report on femtocell technology
29-02-2012, 09:47 AM
to get information about the topic femtocell technology full report ,ppt and related topic refer the link bellow
https://seminarproject.net/Thread-femtocells-technology https://seminarproject.net/Thread-femtocell
28-11-2012, 11:34 AM
Femtocells
Femtocells.docx (Size: 34.25 KB / Downloads: 30) ABSTRACT The market for femtocells has reached a critical point in its evolution. While multiple operators across the world are deploying and committing to femtocells, there is a worry that the pace of deployment is not as fast as was expected. Although large operators like AT&T, Sprint, Verizon, and Vodafone provide femtocells as a part of their portfolio, their proposition hasn’t evolved beyond voice coverage or using the femto as a customer retention tool. The extended propositions of providing enhanced data capacity indoors or providing innovative femtozone services hasn’t seen any concrete traction so far. More importantly, using the femtocell as a competitive customer acquisition tool, rather than just a retention tool, hasn't happened for the most part. So where does the market go from here? What does this mean for the ecosystem of chipset vendors, box vendors, and system integrators? This report focuses on the two current mainstay markets for femtocells - consumer and enterprise. Operator attitudes toward femtocells are examined, closely highlighting some of the issues and any positive signals going ahead. In addition, in emergence and importance of small cells, the larger umbrella under which femto, pico, and micro exist has been a key trend in 2011. How does this impact the market for femtocells going forward and what does this mean for the vendors and ecosystem players?
21-01-2013, 11:15 AM
Femtocells Femtocells[.docx (Size: 3.01 MB / Downloads: 26) Introduction Mobile operators have been searching for licensed indoor coverage solutions since the beginning of wireless networks. Unfortunately, the bulk of this opportunity (i.e. residential environments) has been beyond the addressable market for cost and operational reasons. These reasons has triggered the design and development of new cellular standards such as WiMax (802.16e),the third generation partnership project’s(3GPP’s)High speed packet access(HSPA)and LTE standards, and 3GPP2’s EVDO. In parallel, Wi-Fi mesh networks are also being developed to provide high-rate data services in a more distributed fashion. Although the Wi-Fi networks will not be able to support the same level of mobility and coverage as the cellular standards, to be competitive for home and office use, cellular data systems will need to provide service roughly comparable to that offered by Wi-Fi networks. The recent technology is femto cell, the main aim of femto cell is to improve coverage and capacity of a mobile network by allowing service providers to extend service coverage indoors, especially where access would otherwise be limited or unavailable. A Femto cell is a very small base station. so small, infect that can be placed in a customer’s residence. Femto cells are low-power access points that can combine mobile and Internet technologies within the home. The Femto cell unit generates a personal mobile phone signal in the home and connects this to the operator’s network through the Internet. This will allow improved coverage and capacity for each user within their home. Concept of Femtocell Femtocells are low-power wireless access points that operate in licensed spectrum to connect standard mobile devices to a mobile operator’s network using residential DSL or cable broadband connections. Femtocell is a very small base station. So small, infect that can be placed in a customer’s residence as shown in figure 1.2. The femtocell unit generates a personal mobile phone signal in the home and connects this to the operator’s network using standard broadband DSL on Cable service and typically supports 2 to 5 mobile phones in a residential setting. This will allow improved coverage and capacity for each user within their home. Need for Femtocell Third-generation cellular technology suffers from inadequate indoor-signal penetration, leading to poor coverage in the environment where consumers spend two-thirds of their time. Poor coverage diminishes the quality of voice and video applications, and slows down high-speed data services To keep customers satisfied, 3G carriers have increased capacity by building additional microcell sites. This strategy is becoming much less attractive. Site acquisition costs are exorbitant and continue to mount as space on viable towers and buildings fills up, landlords exact high rents and regulators impose onerous permit requirements. Public opposition to the building of large-scale base stations is increasingly common. Acquiring a site is only half the battle: Sophisticated base station equipment must then be purchased, installed, insured, operated and maintained. The net present value of a cell site in the U.K. is estimated to be $500,000. Carriers thus face a serious dilemma.Well it's clear more and more consumers want to use mobile phones in the home, even when there’s a fixed line available. Friends and family usually call a mobile number first, and it’s where messages and contact lists are stored. Femtocell Working Femtocells are sold by a Mobile Network Operator (MNO) to its residential end-users or enterprise customers. A femtocell is typically the size of a residential gateway or smaller, and connects into the end-user's broadband line. Integrated femtocells (which include both a DSL router and femtocell) also exist. Once plugged in, the femtocell connects to the MNO's mobile network, and provides extra coverage in a range of typically 30 to 50 meters for residential femtocells (depending on the existing coverage and output power — usually 20 mW which is five times less than a Wi-Fi router). From an end-users' perspective it is plug and play, there is no specific installation or technical knowledge required — anyone can install a femtocell at home.Femtocell device consists of a radio receiver and transmitter for the connection between the mobile phone and Femtocell device. It also have an Application Specific Integrated Circuit or Digital Signal Processor to handle the physical connectivity between handsets and Femtocell and between the femtocell and the mobile network. Chip makers design the ASIC or DSP to work with the specific carrier’s network. The Femtocell consists a host processor which supports software based task such as security, encryption, and connectivity to the broadband network via Internet Protocol, or technologies such as the Dynamic Host Configuration Protocol. The end-user must then declare which mobile phone numbers are allowed to connect to his/her femtocell, usually via a web interface provided by the MNO. This only needs to be done once. When these mobile phones arrive under coverage of the femtocell, they switch over from the macro cell (outdoor) to the femtocell automatically. Most MNOs provide means for the end-user to know this has happened, for example by having a different network name appear on the mobile phone. All communications will then automatically go through the femtocell. When the end-user leaves the femtocell coverage (whether in a call or not), his phone hands over seamlessly to the macro network. Femtocells require specific hardware, so existing WiFi or DSL routers cannot be upgraded to a femtocell. Once installed in a specific location, most femtocells have protection mechanisms so that a location change will be reported to the MNO. Whether the MNO allows femtocells to operate in a different location depends on the MNO's policy. International location change of a femtocell is not permitted because the femtocell transmits licensed frequencies which belong to different network operators in different countries.One of the key elements of the femtocell configuration occurs at the first start up when the femtocell equipment is being installed. It is essential that this operates smoothly for the concept to gain acceptance by the user.After acquiring a femtocell the customer should only need to plug the femtocell into the power and connect it to the Internet connection to provide the backhaul connection.With power applied, the first element of the registration is for the femtocell to register within the network. When a user makes a call inside the range of Femtocell, the mobile phone uses its radio to connect to the Femtocell. The Femtocell will attempt to gain access to the core network via the gateway. Femtocell is connected to the Security gateway via wired connection to the users broadband, typically DSL or cable. To achieve this it will utilize the femtocell ID - a unique identifier given to the each femtocell. Additionally the operator is likely to have obtained the address where the user will base the femtocell. The connection between the femtocell and the femtocell host processor uses secure IP encryption (IPSec), which avoids interception.[1] Transport Layer RNC handle all the resource management and control functionality; the RNC and FGW together would take care of delay for traffic and control signaling(specifically forced/hard handover mobility management) caused by the underlying public IP network The core network (CN) has mobility management protocol (MM) and call control protocol which is operated in the core network. |
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