Femtocell ppt

FEMTOCELL TECHNOLOGIES

SUBMITTED BY: AKSHAY SASIKUMAR

“ Can you hear me now ? ”〉 This is often the case in homes and buildings where coverage decreases considerably

as soon as you go indoors〉 People are ditching their landlines in favor of mobile phones〉 It has become necessary to work on new technology that will facilitate calling

coverage both indoor and outdoor

Femtocell technology could be the answer.In addition to facilitating better indoor call coverage, this emerging technology reduces the drain that advanced mobile services (such as mobile broadband) are placing on the capacity offered by phone companies

FEMTOCELL

〉 A small device which is installed in the home or office in order to offer better support to mobile phones there

〉 These base stations can accommodate up to five cell phones which means that you can get increased coverage for your whole household

〉 Enhance the cell phone signal that you receive indoors so that your call quality isn’t decreased when you’re talking indoors

〉 Now many operators are providing Femtocell service

WHY IS FEMTOCELL IMPORTANT?〉 It can provide indoor coverage for places where macrocells cannot

〉 It can offload traffic from the macrocell layer and improve macrocell capacity

〉 Addition of a femtocell layer will significantly improve the total network capacity by reusing radio spectrum indoors

〉 Femtocell plays an important

role in mobile broadband and

ubiquitous communications.

FEMTOCELL : FEMTOFORUM〉 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. [Femto forum]

〉 By 2013, 204 million users on 60 million access points worldwide. [ABI Research]

〉 Femtocell base station is also known as home basestation, home access point, or home Node B.

FEMTOCELL IS AN ACCESS POINT 〉 Femtocells a low-power domestic access point 〉 Small-size cellular base stations (BSs) for residential or small business environments. 〉 Full-strength mobile technology but simpler deployment With full operator

management. 〉 Improve indoor coverage and capacity

With internet-grade backhaul At prices

comparable with Wi-Fi access points . 〉 Typically support 2 to 6 concurrent users. 〉 An alternative method to Fixed Mobile

Convergence (FMC).

A FEMTOCELL DEFINITION〉 A small cellular base station, designed for

use in residential or enterprise.

〉 Connects to the service provider’s network via broadband.

〉 Support 2 to 6 mobile.

〉 Allows service providers to extend service coverage indoors.

〉 The concept is applicable to all wireless standards, including UMTS, GSM, CDMA-2000, TD-SCDMA and WiMAX solutions.

WHY NEEDS FEMTOCELLS ?

DATA COVERAGE

Problem:

Mainly a issue for macro cellular systems Good voice coverage, but poor high data rate coverage.

Coverage degrades at high rates.

Femtocells :

Extend high-rate data coverage.

WHY NEEDS FEMTOCELLS ?

BASIC COVERAGE

Problem:

RF coverage holes.

Need to improve voice coverage.

Femtocells:

Provide basic service coverage.

Home/Enterprise coverage.

WHY NEEDS FEMTOCELLS ?CAPACITY ENHANCEMENTProblem:

Data loads exceeding capacity.

Limited macro enhancement ability. (Higher power may induce higher interference.)

Increase capacity economically by offloading to femtocells.Femtocells:Provide localized capacity.Increase overall capacity.

BENEFITS OF FEMTOCELL NETWORKS : FOR OPERATORS

〉 Low cost solution.〉 Improve reliability.〉 Increases both coverage and capacity.〉 Reduce coverage holes and create new converged services.〉 Reduce macrocell backhaul capacity requirements.〉 Works with all existing handsets; no need for expensive subsidizes on dual-mode

(3G + Wi-Fi).〉 Increases 3G adoption.

BENEFITS OF FEMTOCELL NETWORKS : FOR END-USERS

〉 Excellent network coverage when there is no existing signal or poor coverage.

〉 Higher capacity, which is important if the end-user uses data services on users mobile phone.

〉 Depending on the pricing policy of the MNO, special tariffs at home can be applied for calls placed under femtocell coverage.

FEATURES OF FEMTOCELL

〉 Operates in the licensed spectrum

〉 Uses fixed broadband connection for backhaul

〉 Principally intended for home

〉 Lower cost

〉 Smaller coverage

〉 Smaller number of subscriber

〉 Higher density

INDOOR WIRELESS COVERAGE: FEMTOCELL

〉 Internet-grade service quality. (Wire line backhaul)

〉 Easy plug-and-play.

〉 Two typical operation modes of femtocells.

Public (open)

Private(closed)

FEMTO USAGE MODEL

Public (Open):〉 No restrictions on subscriber to use

the femtocell.

〉 All customers of a cellular service providers can access publicly accessible Femto-AP.

〉 Hotspot type scenario: coffee shop or airport.

Private (Closed):〉 Only authorized users are

allowed to connect to a privately accessible Femto-AP.

〉 Access Control List.

〉 Home or enterprise environments.

FEMTO CHARACTERISTICS

PhysiquePhysically small for limited space in some households/officesSilent in operation while generating low levels of heat output

RF PowerT x RF power is between 10-100mW (lower than 1W by Wi-Fi)3G handset is able to transmit at lower power levels when being close to the femtocell

CoverageDedicated 3G coverage within a household (10-200m)Designed for a capacity of 2 to 6 end-users

FEMTO CHARACTERISTICS

Backhaul〉 Utilize Internet Protocol (IP) with a flat BS architecture〉 Link to operator networks via wired broadband connections

Interference〉 Macrocells vs. Femtocells〉 Femtocells vs. Femtocells

Security〉 Security risks due to broadband internet (open access)〉 Network security is managed by the IPsec protocol

FEMTO CHARACTERISTICS

Operation〉 Compatible with existing 2G/3G handsets and devices〉 Operates in licensed spectrum owned by operators〉 Remote configuration and monitoring system similar to that used by the macro

networks〉 Remote management to enable QoS at the edge of the network〉 Includes provision for a services environment on which applications may be added

Worldwide Standard Support〉 Developed to support both 3GPP (UMTS) and 3GPP2 (CDMA)〉 Also supports emerging technologies such as WiMAX and LTE

KEY ATTRIBUTES OF FEMTOCELLS

Mature mobile technology:

〉 Femtocells use fully standard wireless protocols over the air to communicate with standard mobile devices, including mobile phones and a wide range of other mobile-enabled devices.

Operating in licensed spectrum:

〉 By operating in licensed spectrum licensed to the service provider, femtocells allow operators to provide assured quality of service to customers over the air, free from harmful interference but making efficient use of their spectrum.

Generating coverage and capacity:

〉 As well as improving coverage within the home, femtocells also create extra network capacity, serving a greater number of users with high data-rate services.

KEY ATTRIBUTES OF FEMTOCELLSUsing internet-grade backhaul:

Femtocells backhaul their data over standard residential broadband connections, including DSL and cable, using standard internet protocols. This may be over a specific internet service provider’s network, over the internet itself or over a dedicated link.

At competitive prices:

The large volumes envisaged for femtocells will allow substantial economies of scale, driving efficiencies in manufacturing and distribution in a manner similar to the consumer electronics industry and with pricing projected to be comparable with access points for other wireless technologies.

Fully managed by licensed operators:

Femtocells only operate within parameters set by the licensed operator.The operator is always able to create or deny service to individual femtocells or users. This control is maintained whether the femtocell itself is owned by the operator or the end user.

FEMTOCELL CONFIGURATION SCENARIOS〉 Macrocells are operated by a mobile wireless operator, while femtocells are privately

owned and connected to a broadband service provider, such as an Internet Service Provider (ISP).

〉 Thousands of femtocells may co-exist in a coverage area of a macrocell-based cellular network.

FEMTOCELL NETWORK CONFIGURATION

〉 There are three possible types of femtocell network configurations based on the availability of a broadband connection (e.g., ISP) and on the coverage of the macro cellular network:

〉 Type A :a single stand-alone femtocell

〉 Type B : a network of stand-alone femtocells

〉 Type C : a femtocell network integrated with a macro cellular infrastructure

TYPE A TYPE B TYPE C

This could be the case of a remote area with:• no macro cellular

coverage

• a poor coverage area

• indoor

• this type of a configuration extends the service coverage into remote areas.

Radio signal from one FAP overlaps with other FAPs’ signals • There is no macro cellular

coverage

• Either coverage is poor.

• Femtocell-to-femtocell handovers are present and need to be handled by the femto cellular network.

• As the Type A configuration, the Type B configuration is also able to extend the service coverage into remote areas.

This scenario can be viewed as a two-tier hierarchical network

• The macrocells create the upper tier

• The femtocells the lower tier

• Handover between macrocells and femtocells, as well as handover between femtocells

• improves the indoor service quality and reduces the traffic load of the macrocells by diverting traffic to femtocells

DEPLOYMENT : GREATER FEMTOCELL〉 Not only for the home !

〉 Femtocell economies of scale deliver cost-effective deployments in offices and in high-traffic or low coverage locations

〉 Femtos in the enterprise and metro zone

〉 Scope for cost-effective access to rural and developing markets via appropriate backhaul solutions

WORKING OF FEMTOCELL〉 A femtocell is installed at home and connected

to mains power and a standard broadband IP connection through to the mobile operator’s core network

〉 Voice calls, text messages and data services are provided by the same systems.

〉 Femtocells operate at very low radiation power levels, and typically have a range of 200 meters

〉 When users walk outside or out of range, calls are automatically handed over to the external mobile network.

〉 Unlike Wi-Fi access points, Femtocells operate using licensed spectrum and thus must be supplied and operated in conjunction with the mobile operators

WORKING OF FEMTOCELL

ISSUES〉 INTERFERENCE

〉 EQUIPMENT LOCATION

〉 QUALITY OF SERVICE

〉 CONTROVERSY ON CONSUMER PROPOSITION

THANK YOU