Wimax the Cure for Rural Broadband ARICENT

8/3/2019 Wimax the Cure for Rural Broadband ARICENT

http://slidepdf.com/reader/full/wimax-the-cure-for-rural-broadband-aricent 1/8

WiMAX: The Cure for

Rural Broadband

September, 2009

ISP

Internet

Backbone



WiMAX: The Cure for Rural Broadband

3

Requirements and Challengesfor Rural Broadband DeploymentsWhile rural broadband deployments can utilize the same technologies which are used in urban areas, they are not

particularlywell-suitedgiventhespecicrequirementsandchallenges,including:

•Speed to Market: Speed to market is critical, especially in the U.S. where stimulus funds will be disbursed by September

2010, and networks need to be deployed within 2 years.

• Infrastructure-Related Concerns: As mentioned previously, the CAPEX/

OPEXinvolvedindeployingandmaintainingxed-linenetworksfor

rural deployments are very high. Due to the low population density in

theseareas,costsoflayingoutcopperorberinfrastructureinthe“last

mile” increases due to the limited aggregation opportunities available.

Additionally, securing bandwidth for the “middle mile” from the ISP

to the Internet backbone is a challenge, both in terms of availablebandwidth, as well as expenses.

•Data Rate Requirements: Although the data rate requirements for rural

broadband networks can be expected to be lower than in urban areas,

ISPsneedtosupportFCCdenitionsofbroadbanddataratesviz.,768

kbps for downlink and 200 kbps for uplink .

•Deployment Flexibility: Unlike urban networks which have similar requirements across the entire deployment area,

requirements for rural networks e.g., number of users to be supported, data rate requirements, service requirements, etc.

differfromoneareatoanother.Thus,thebroadbandsolutionneedstobeexibleenoughtoprovidesurgicaldeployment

options,basedonarea-specicrequirements.

•Mobility and Value Added Services: To compensate for the high expenses and lower-priced basic services, operators need to

offer value added services which can help increase subscriber ARPU and improve the economic viability of these networks.

WiMAX: The Ideal Solution for RuralBroadband DeploymentsAs operators around the world evaluate multiple technologies for rural broadband deployments, WiMAX is emerging as a de-

facto standard. The advantages offered by WiMAX include:

• Infrastructure Effectiveness: WiMAX offers a highly cost effective solution to address the rural broadband conundrum as

physicalinfrastructureneednotberolledouttoindividualcustomerpremisesonthelastmile.Thissignicantlyreduces

the overall cost and the time-to-market in deploying the network.

• Suitable Data Rate Support: WiMAX is a mature 3.9G wireless broadband technology and can easily support the FCC-

mandated broadband data rates and more.

“ISPs need to support FCC

definitions of broadband data

rates namely, 768 kbps for

downlink and 200 kbps for

uplink”

FCC ChairmanKevin J. Martin

June 2009



•Surgical Network Deployment Opportunities: WiMAX allows operators to surgically choose deployment options and focus onspecicareaswherethereisstrongdemand.Capacityexpansionscanbeaddressedeasilybyupgradesinthedatacenteranddo not require any physical infrastructure onsite.

•Mobility and Value Added Services: Mobility is a key differentiator with WiMAX, enabling the network subscriber to roamout of the home network, and also support roamed-in macro/peer network subscribers. WiMAX also allows operators to

offervalue-addedservicessuchaslocation-basedserviceswhicharetypicallynotavailablewithxedtechnologies,andcan help improve the ARPU from rural areas.

•Spectrum Concerns: WiMAX spectrum has typically been less expensive worldwide as compared to 3G licenses.Additionally, with FCC opening up the 3.65 Ghz range for WiMAX, smaller operators can deploy rural broadband networkswith no spectrum-related concerns.

WiMAX-based Rural Broadband Deployments

Rural Deployment Topology

Inkeepingwiththedemandsofruralgeographies,operatorscanchoosetodeployWiMAXnetworksindifferentcongurations,based on the level of integration needed across individual networks. Some deployment options include:

• Fully Independent Networks: These are networks catering to either a town or a cluster of villages or a small county. In this

scenario, there is no sharing of information across the network cores from a NMS, OSS, BSS or subscriber management

perspective, and hence, each network is a fully independent entity. This topology is suited for a network roll out where

operators are merely looking to get the network operational. Support for mobility or realizing economies of scale from

centralizing the core network are not major considerations.

• Partially Independent Networks: These networks are similar to the fully independent networks described above. However,

the individual networks share a common subscriber database, which facilitates mobility and roaming across the different

networks. This is a natural evolution path for fully independent networks as the number of subscribers, or the need to

support mobility, increases.


4

IPNetwork

NMS/ OSS/ BSSSolution

R6

R6

R6

R4

R6

R6

R6

BS BSBS BS

BS BS

NMS/ OSS/ BSSSolution

ASN, HA, AAA ASN, HA, AAA

County 1 County 2

Independent Networks per Village Cluster

IPNetwork

R6

R6

R6

R4

R6

R6

R6

BS BSBS BS

BS BS

ASN, HA, AAA ASN, HA, AAA

Centralized NMS/ OSS/ BSSSolution w/ Centralized

Subscriber Database

County 1 County 2

Independent Networks per Village Cluster w/Centralized Subscriber Database




5

•Centralized Core Network: The centralized core network is the ideal topology for an operator with a large deployment of

individual rural networks. This core provides a rural aggregation solution catering to multiple counties or a single large

state. This topology extends centralization of core network functionality beyond subscriber database integration, to

functionssuchasdatatrafc,NMS,OSS,etc.Itprovidesoperatorsaneffectiveplatformtolaunchvalue-addedservices

andmovebeyondactingasadatapipeforInternettrafc.

Implementation Considerations for WiMAX Rural Broadband Deployments

As operators look to deploy WiMAX-based solutions to service the rural broadband market, there are a few important

implementation-relatedconsiderationswhichcansignicantlyimpactthesuccessoftheofferedservices.

•Deployment Topology: The operator needs to decide which network topology to use, based on a careful evaluation of the

marketwherethenetworkisexpectedtobedeployed.Dependingontheirspecicstrategiesandmarkets,operatorscan

either choose to start with independent deployments or with the complete centralized core network deployments. However,

itisimportantthatthechosenWiMAXsolutionofferawell-denedevolutionpathfromade-centralizedarchitecturetoa

centralized one.

• CAPEX and OPEX: From a CAPEX perspective, operators need to consider deployments which support a “pay as you

grow” model and allow them to adjust their network investments based on service uptake. Optimization of OPEX needs

to be ensured by the simplicity of the network in terms of the number of nodes deployed, number of failure points, and

manageability by single NMS.

• Service Expectations: Though rural deployments have less stringent requirements in terms of throughput and

latency, operators need to ensure that end user expectations of services offered, mobility, and issue resolution are

addressed effectively.

•Need for Innovative Applications: While WiMAX is an ideal technology to support innovative applications which can improve

ARPU from rural subscribers, it is important that the chosen platform provides the necessary framework and tools to launch

such applications effectively, with limited need for additional investment.

R6

R6 over GbE

2000-3000 subscriber per PoP

Network ManagementSystem Border Gatewayand Internet Gateway Router

Geographically distant areas. Cluster of villages/ towns

Access Concentrator,Aggregator, L2 Switch.T3 toGigabit Ethernet (Gbe)(optional)

Edge Router with QoS, trafficShaping, MPLS, VLAN,Policing and PolicyEnforcement

Internet, PublicData Network

W I N G

W I N G

Routed traffic for internet

R4 Interface for handover, R3interface for roaming, Internettraffic

Locally hosted ApplicationServer. e.g. VoIP Server,MIS and Applications server,VOD server, Intranet Webservers, Policy and ActiveDirectory server etc.




6

Aricent Solutions for Rural Broadband Networks

Aricent offers a WiMAX network-in-a-box software solution, WiMAX Integrated Gateway (WING), designed for equipment vendors

looking to provide WiMAX-based rural solutions in a short time-frame using pre-packaged and pre-optimized software. At its

heart, WING consists of an ASN-Gateway integrated with an AAA server and HA server on the same physical node.

Aricent’s WING product is an ideal low footprint solution for rural markets, with low CAPEX and OPEX requirements and

supporting100-20000simultaneousattachedsubscribers.Itisahighlyexiblesolution,designedtoworkintandemwiththe

existingMacro/PeerWiMAXnetworks,andprovidesecureservicetobothlocalandroamed-insubscribers.Itsexiblelicensing

scheme allows box licensing based on number of subscribers, Base Stations or data throughput.

Aricent’s WING comes with an array of WiMAX features ideal for rural deployments including User Authentication (EAP-TTLS),Offline Accounting, IP Mobility, Handoff, Idle Mode/Paging, all QoS classes and both IP and Ethernet Convergence sub-

layer. The product executes persistent storage of subscriber billing and also provides an intuitive interface for subscriber

and node monitoring/management. WING is compliant to the WiMAX Forum® NWG R1 rev1.2 specification and is

designed for high interoperability with the multi-vendor mobile WiMAX Access Network and Core Network Nodes.

WiMAX Services and Support

Aricent has the resources, knowledge, and experience to support

rapid, cost-efficient, and high quality product development, network

design and implementation projects. Aricent can ensure the success of

WiMAX solutions deployment, with a wide offering of WiMAX services,

which include:

•WiMAXWINGSupportandCustomizationServices

•WiMAXDesignandDevelopmentServices

•WiMAXOSSandBSSSolutionsandServices

•WiMAXPlanningandInstallationServices

IncomingRoamers

OutgoingRoamers

BS

WiMAX IntegratedGateway (WING)

External ASNExternal CSN

Internet

Intranet

Billing System

• Breadth of Offerings (Products

and Services)• Proven Success of WiMAX Offerings

• Partnerships and InteroperabilityCredentials

• Deep Industry Knowledge

• Financial Stability

• Best-in-Class Support

Key Considerations in Choosing a Strategic WiMAX Partner




7

The Aricent Advantage

It is critical for equipment manufacturers and system integrators to choose the right partner to co-create the rural WiMAX

solution and ensure the best alignment to operator requirements, commercial success, and future viability.

Aricent is a market leader in the communications software industry. A culture of innovation and the extensive experience of our employees help us deliver a full spectrum of exciting service offerings throughout the entire communications business

lifecycle. Aricent also has more than 125 software products – ranging from complex applications to network core technology

– that enable the world’s leading equipment manufacturers, device manufacturers and service providers to introduce new

experiences,improvetime-to-revenueandmaximizeefciency.

Aricent today leads the communication software space and has been a pioneer in providing components for the networks

of the future. With comprehensive offerings in both wire-line and wireless technologies spanning GSM/GPRS, 3G, LTE,

WiMAX, VoIP and IMS, Aricent offers a variety of components, from basic building blocks like protocol stacks, to higher

value toolkits and frameworks. From strategy to implementation, Aricent solves the most complex, high-impact software

problems being faced by communications companies today.

ConclusionRural broadband penetration has grown at an unprecedented rate in the last few years, and with initiatives from various

governments, this growth rate can only be expected to increase. WiMAX, with its technology superiority and deployment

friendliness, is the ideal technology to serve the needs of rural broadband markets, and provide economically viable

solutions. With proven white label WiMAX product offerings, deep domain expertise in WiMAX technology, and turnkey

product lifecycle and customization services, Aricent is ideally positioned to partner with equipment manufacturers in

providing high quality and cost-effective rural broadband solutions.




C O R P O R A T E O F F I C E

700 Hansen Way

Palo Alto, CA 94304-1388

USA

Phone +1 650 391 1088

www.aricent.com

© 2009 Aricent Inc. All rights reservedAll Aricent brand and product namesare service marks, trademarks or registered marks of Aricent Inc. in theUnited States and other countries. Alother marks are the property of theirespective owners. September, 2009

WPR02091809

About AricentAricent is a global innovation, technology and services company focused exclusively on communications. Aricent com-

bines the leading innovation capabilities of frog design with unparalleled domain expertise in communications as a stra-

tegic supplier to the world’s foremost infrastructure, application and service providers. The company’s investors include

Kohlberg Kravis Roberts & Co., Sequoia Capital, The Family Office and The Canadian Pension Plan Investment Board.

For More InformationTo learn more about Aricent’s WiMAX solutions, and how we can help address your rural broadband solution needs,please visit us at www.aricent.com/wimax .

N

S

E W

00111010

11001100

Communications consulting

Application developmentInfrastructure design, R & D and sustenanceNetwork/ service/ OSS/ BSS integrationTesting and maintenance

CoreServices

UniqueOfferings

Deep communications domain knowledgeUnique innovation/ implementation combinationComplete products and frameworksEmerging market Expertise (India, China, Mexico, etc)

Wimax the Cure for Rural Broadband ARICENT

Documents

Transcript of Wimax the Cure for Rural Broadband ARICENT