Mobile Solutions for Wi-Fi - Accuris Networks

Mobile Solutions for Wi-FiMobile Convergence TechnologyCONNECTING NETW ORKS

Mobile Services Demand is GrowingTelecommunication research has consistently shown that the demand for mobile devices is increasing each year.Mobile usage statistics confirm that mobile data traffic increased by 70% in 2012 compared to 2011, and it isforecasted that this growth will increase 13-fold by 2017 i . Tier 1 operator AT&T reported a 100% increase inwireless data traffic from 2010-2011, and a 200-fold increase in the last five years ii . According to Cisco, 33% ofmobile data traffic within the last year was offloaded onto networks such as Wi-Fi; this in turn reduced mobileoperator data traffic by 26%, thus minimising network congestion for other use iii .Wi-Fi Offload is aproven solution to help operators offload data, voice and messaging – both domestically and internationally.When considering if Wi-Fi is the way to go for offloading data from the cellular network, operators weigh up thedifferences between macro cells, small cells and Wi-Fi. One researcher compared each of these with capacity,capacity density and Total Cost of Ownership (TCO). The results indicate that a combination of small cells and Wi-Fi can cope with predicted capacity density increases, cost-effectively meet capacity demands, increase trafficmanagement efficiency and diminish per-bit TCO by 50% iv . In this way,Wi-Fi Offload acts as acomplimentary element in an overall network solution to reduce capacity, capacity density and TOC.Capitalise on RoamingUntil now, roaming has been an issue for subscribers using differing devices and networks such as 3GPP2 (CDMAor TDMA), 3GPP and IEEE 802.11 Wi-Fi v . Bill shock has been a common problem, forcing subscribers to turn offmobile data roaming settings vi , and GSM/CDMA operators have not been able to connect their subscribers topartner networks. The introduction of Wi-Fi Roaming allows users to connect to a preferred Wi-Fi network usingtheWi-Fi Roaming SIM-based authentication technology while abroad - and remain bound to theirhome subscription. WithWi-Fi Roaming the operator can maximise roaming revenue and thesubscriber can controls costswhile receiving fast, extendedservice.Tier 1 operators arealready providinginternational mobiledata, voice andmessaging solutionsusingWi-Fi offload androamingHow Wi-Fi Offload can Help• Transfer data-hungry services off the cellular network• Avoid congestion at radio access and core networks• Create partnerships with existing Wi-Fi operators• Meet market data, voice and SMS consumption demands• Provide an alternate high-speed access method• Complement existing cellular and LTE networks• Access new market segments, such as Wi-Fi-only devices• Bundle Wi-Fi offload service with existing data packagesHow Wi-Fi Roaming can Help• Capture lost roaming revenue• Minimize decreasing 3G data roaming impact margins• Maintain and grow an international roaming footprint• Enable positive user experiences, reduce churn• Support multi-device and multi-network access• Utilise existing Wi-Fi networks• Bundle international Wi-Fi service with existing roamingpackages

What is ?is a mobile convergence platform that enables cellular subscribers to seamlessly and transparentlyswitch between mobile and alternate wireless networks.is a carrier grade proven solution thateliminates the technical, administrative and resource burdens of data, voice and messaging offload and roamingacross protocols.Wi-Fi has become more accepted globally as a key part of the mobile ecosystem and leading carriers have movedto embrace Wi-Fi at home and when roaming vii . Wi-Fi is inexpensive, spectrum independent, available on everysmart phone and tablet device.taps into this opportunity to reduce end-user and operator painpointssimultaneously.enables cellular user Wi-Fi access and provides the same service continuity to Wi-Fi end users androaming operators as is experienced when using the cellular network. There is no disruption to service andsubscribers do not have to worry about usernames/passwords or looking after additional bills. The process iscompletely seamless and silent.enables automatic authentication by accessing customer SIM-based account credentials; this allowsthe operator to control subscriber and service policies, thus creating a portal for revenue generation.bridges the gaps between networks (including non-EAP capable devices) with advancedtechnological development in the core network server. This innovation setsahead of all other Wi-Fi offload and roaming solutions available today. In addition,has been developed with intelligentpolicy control and is ready for Hotspot 2.0.What can the Operator do with ?• Facilitate domestic and international Wi-Fi offload androaming• Provide Wi-Fi offload and roaming data, voice and SMSservices• Increase global coverage• Bind global Wi-Fi footprints to mobile subscriptions• Benefit from carrier grade performance and scalability• Deliver seamless and consistent user experiences• Support EAP SIM / AKA and non-EAP capable devices• Provide automatic and secure authentication /authorization• Control subscriber and service policies, much likeon mobile• Maintain an unlimited hotspot (SSID) white list• Support all major devices (Android, iOS,Blackberry, Windows Phone and Symbian)• Wholesale potential (single sign-on/bill)• Prevent fraudulent intrusion• Adapt to any WLAN controller• Collect data for accounting, billing, clearing andsettlementWhat about Subscribers?Attach seamlessly to high-speed, cost-effective Wi-FiIncrease global coverageRetain existing mobile subscription services andbilling methodsSign-on transparently – always automaticconnectionsMaintain profile settingsAvail of next generation services

Carrier grade & full integration with the mobile network isessential for successful Wi-Fi rollout…. not just forauthentication and data, but for all services that userscurrently receive on cellular, such as charging, policy, voice,messaging and roaming.The Nuts and BoltsTo make it all work, technology comprises the Server and Mobile Client.TheServer is a carrier class service node, designed to interwork with the mobile operator’s PLMNcore network and the Wi-Fi network infrastructure alike. TheMobile Client is a distributablesmartphone application that handles automated Wi-Fi network discovery, authentication and authorised access.ServerTheServer constitutes a RADIUS and Diameter AAA server, Wi-Fi Footprint Manager server, WISPr1+ User-Registration server, SIP Registration server and a Mobile Core Authorisation server. These Wi-Fi networkand infrastructure agnostic elements provide:Multiple services supportMultiple authentication optionsClient and server integration pointsSIM based secured authenticationBilling and settlement (online, offline & roaming)Tunnelled access to mobile network with keymanagementNACData, voice and messaging offload also requires a Wi-Fi gateway, theNetwork Access Controller(NAC), which hosts the DHCP Relay Server, Captive Portal, Policy Enforcement server, Intrusion Dectection Serviceand WLAN Controller Adaptors.TheNAC provides:• Network discovery and monitoring• Strong user authentication• Policy control and enforcement• Reporting• Web-based captive portal• DHCP relay server• Anti-fraud service• Multiple WLAN controller adaptorsCaptive Portal

What doesOffer?• EAP SIM / AKA, WISPR 1.0 and WISPr 1 + ready• Seamless, transparent and secureauthentication/authorisation• Mobility management• Messaging interworking• Voice call control• Network access control• Web sign-on and captive portal• Tunnelling key management (IP Sec, SSL)• All major smartphones compatibility (Android,iOS, Blackberry, Windows Phone and Symbian)• Wi-Fi Footprint Management server• Wi-Fi Offload smartphone client application, no need forend-user to input username/password• Works with any hotspot over WISPr 1.0 protocol• Dedicated registration process to create secured SIMbasedauthentication keys• Facilitates WISPr 1 + bound to billing account-holder forSIM-free devices• High security and encryption• Unlimited hotspot whitelist• Intelligent policy control ready for Hotspot 2.0• Full mobile network integrationMobile ClientTheMobile Client is available for non-EAP capabledevices (WISPr) and all major mobile OSs are supported. The clientautomatically searches, selects and transparently connects tooperator approved hotspots while maintaining billing and policysupport. Full service continuity (MO/MT voice and messaging to asingle-radio Wi-Fi attached subscriber) is available and the dataconnection from the end-user device to mobile core data access issecurely encrypted.WISPr 1 + is unique to Accuris Networks and provides completesecurity where WISPR 1.0 does not. It uses a dedicated registrationprocess to create secured SIM-based authentication keys. Thismethod provides strong mobile end-user authentication, withexisting Wi-Fi network capability. Authentication is based on avariety of identity-key and encryption-key mechanisms.Case Report 1: Wi-Fi RoamingBackgroundTier 1 mobile network and Wi-Fi provider in North America serving 150 million users. Wireless revenue represents50% of total revenue, and data service represents nearly 40% of the wireless segment.Requirements• Capture lost roaming revenue from subscribers who found 3G data roaming too expensive or foundalternative access• Minimize impact of decreasing 3G data roaming margins as 3G data roaming wholesale prices decrease• Maintain the lead as the operator with the greatest roaming footprint internationally• Reduce churn by extending domestic Wi-Fi support as a value-added service into the international roamingarea• Remain access neutral by providing subscriber access to services over 3G, 4G, Wi-Fi or any network• Access ubiquitous spectrum of Wi-Fi in key locations where roamers use heavy data (such as airports, hotelsand cafes)

ImplementationBy deployingWi-Fi Roaming WISPr 1.0 + , the operatorwas able to offer a Data Roaming Add-On package for subscriberstravelling to selected countries, with contracts bound by a monthlydata allowance and cost. TheMobile Client foriPhone/iPad, Android Smartphone and Android Tablets was requiredfor this WISPr 1.0+ deployment.ResultsSubscribers experienced a seamless user experience of cellular data on-the-go, with high speed access over Wi-Fiwhen available; users were able to authenticate to partner hotspots without needing to enter a user name andpassword. The operator was able to generate additional revenue from the Data Roaming Add-On package.Case Report 2: Cellular over Wi-FiBackgroundTier 1 communications company in North America serving 6 million users.Requirements• Extend roaming experience and service continuity beyond CDMA• Allow subscriber to make/receive voice calls and SMS on home MSISDNImplementationWi-Fi Roaming to enable cellular over IP network.ResultsMobile client enables all cellular services over Wi-Fi network; the same identity as cellular MSISDN is used and fullvoice and messaging services (over SIP/IMS) are provided.Case Report 3: Wi-Fi OffloadBackgroundTier 1 mobile network and Wi-Fi provider in the Middle East serving 16 million users. Data service revenuesincreased by 59% in 2011, with mobile broadband subscriptions tripling each year; actively rolling out Wi-Fihotspots.Requirements• Meet dramatic demand rise of broadband data consumption• Relieve congestion at both radio access and core network• Re-evaluate expansion plan, which could not cope with marketdemand• Avail of Wi-Fi network as an alternate access method• Find a single solution to address unified seamless access across allsmart devicesImplementationWi-Fi Offload EAP-SIM/AKA was selected as the securedWi-Fi access for EAP capable devices including iPhone, iPad, BlackBerryand new Android series; WISPr 1.0 + was selected to cover non-EAP capable devices, primarily previous generationof Android.Resultsprovides successful auto-authentication on the Wi-Fi network and interworking with cellular HLR.Future plans to extend WISPr 1.0 + to all devices for International Wi-Fi Roaming.

About Accuris NetworksAccuris Networks is a leading provider of Wi-Fi Offloadand Roaming interworking convergence solutions fordata, voice and messaging offload to Tier 1 operators.Accuris Networks produces proven carrier classperformance solutions and is an established supplier ofcompetitive, cost effective platforms internationally.Accuris Networks’ strengths lie in mobile coreintegration and the company is a committedcontributor to the Wireless Broadband Alliance (WBA)and the GSM Association (GSMA).i Cisco, Cisco Visual Networking Index: Global Mobile Data TrafficForecast Update, 2012–2017, 2013,http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11-520862.html.ii J Donovan, ‘Wireless Data Volume on Our Network Continues toDouble Annually’, Innovation Space, 2012,http://www.attinnovationspace.com/innovation/story/a7781181.iii Cisco, Cisco Visual Networking Index.iv M Paolini, The Economics of Small Cells and Wi-Fi Offload, 2012,http://www.senzafiliconsulting.com/Reports/TheeconomicsofsmallcellsandWiFioffload/Aboutthereport.aspx.v S Segan, ‘CDMA Vs. GSM: What’s the Difference?’, 2012,http://www.pcmag.com/article2/0,2817,2407896,00.asp; DSullivan, ‘Verizon Galaxy S3 “World Phone” Coming. But When?’,Common Sense Tech, 2012, http://news.cnet.com/8301-33620_3-57529709-278/verizon-galaxy-s3-world-phone-coming-but-when/.vi iPass, The iPass Global Mobile Workforce Report (RedwoodShores, USA, 2012), http://www.ipass.com/resourcecenter/surveys-reports/reports/q2-report-2012/.vii Wireless Broadband Alliance, WBA Releases 2012 Wi-Fi IndustryReport, 2012, http://www.wballiance.com/2012/11/05/wbareleases-2012-wi-fi-industry-report/.HeadquartersAccuris Networks7th & 8th Floor O’Connell Bridge HouseD’Olier St.Dublin 2Ireland+353 1 8818700 Phone+353 1 8818701 FaxAccuris Networks Inc.1 Batterymarch Park QuincyBoston MA 02169USA+1 303 666 1214 Phone+1 720 206 0984 FaxAccuris Networks MalaysiaSuite 18-1618th FloorWisma UOA II21 Jalan PinangKuala Lumpur 50450Malaysia+60 3 2161 6232 PhoneAccuris NetworksSao PauloBrazil+55 11 95653 0999 Phonewww.accuris-networks.comMobile Wi-Fi convergence technologyis merging mobile services withbroadband IP communicationsinfrastructure to gain cost-efficientservices, uniform service accounts,high volume transactions, fastermobile-service access speeds andvalue-added services.CONNECTING NETW ORKS