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Service Provider Wi-Fi: Architectures, Use Cases and Deployments Service Provider Wi-Fi: Architectures, Use cases and Deployments Srini Irigi Solution Architect, Cisco Systems February 25, 2013 © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1 Outline and Key Takeaways • SP Wi-Fi: Drivers/Motivators ?? • Carrier-grade Wi-Fi Requirements • Integration with existing Mobile Networks • Solution e2e System/Functional Components • Use cases and Call flows • Case Studies • Summary © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2 2 © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3 Growth in Mobile Data: 26x over 5 years 180% increase in Lack of spectrum signalling traffic and inability to due to rapidly increase • Easy Connec+vity smartphones # cell sites • Deployment • Seamless Complexity Authen+caon • Consistent User- • Session con+nuity experience • Applicaon Economics of A shift from indoor offload and outdoor transparency small cell systems consumption to indoor WiFi already used to support >30% of US smartphone usage © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 4 4 Delivering 26x increase in Supply • Service usage growing unchecked • Macrocell capacity growth cannot keep up with demand • Licensed spectrum availability not growing to meet demand • Smaller Cells are needed to scale supply efficiently & economically • Licensed and Unlicensed Spectrum will need to be exploited © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5 5 Drivers for change Spectrum (5MHz vs 10,20 MHz) Multiple carriers • Meet Subscriber Demand Increased coverage and service ubiquity Higher Speed enabling richer applications Footprint Efficiency • High Volume Low Cost Technology (#cells/m ) (Bits/Hz, Small Cells backhaul BW) SP WiFi is to Mobile (3G/4G) as Carrier Ethernet is 3G to HSPA to LTE to Wired (SDH/PDH) • Licensed Spectrum Availability Macro Not growing to meet demand • Hierarchical Network Approach Macro cells & small cells Consumer Business Community © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 6 6 Retention & Loyalty Indirect ARPU Increase • Why operators use free public Wi-Fi to • What are most common ways to increase increase loyalty? ARPU using public Wi-Fi? • How much free public Wi-Fi was able to • How operators use Wi-Fi to move customers improve churn? up the value chain? • What are the key issues operators consider • How open consumers are to accept to be successful? advertising and personalized marketing • How major service providers execute this part of the strategy? New Revenues Mobile Data Offload • Are customers willing to pay fixed fees to • What opportunity cable operators see get access to the public Wi-Fi network offering offload service to mobile carriers? everywhere? • Which locations are considered most • How operators offer their Wi-Fi service to likely to need mobile offload? • How to increase probability of mobile non-customers as well as to customers not operators buying the service from eligible for free access? the cable operator (vs. making • Are there new services to be provided, their own Wi-Fi network)? which can generate new revenues? © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7 7 © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8 Cellular Mobility Experience on WiFi Cellular WiFi Example: GSM Phone Example: iPhone Turn on phone and get secure cellular connectivity Turn on phone and get secure WiFi connectivity • Roaming anywhere – no logins or passwords • Automatic Network Selection • Access anywhere with my profile & services © 2012 Cisco and/or its affiliates. All rights reserved. 9 9 Three Stages to Engagement DETECT CONNECT ENGAGE GUEST PRESENCE GUEST ACCESS GUEST EXPERIENCE Mobile device Seamless, secure Location-based detection, registration Wi-Fi onboarding content and services © 2012 Cisco and/or its affiliates. All rights reserved. 10 For A Wide Range of Vertical Use Cases RETAIL HOSPITALITY TRANSPORTATION Connected Consumers Connected Guests Connected Travelers • Context rich promotions • Indoor maps with featured attractions • Better planning for high traffic areas • Better informed purchase decisions • Personalized 3rd party advertising • Transportation updates and indoor directions • Better in-store experiences • Special promotions • Dwell times-based promotions © 2012 Cisco and/or its affiliates. All rights reserved. 11 WiFi Service Requirements Ubiquitous Access Common Authentication Seamless Services Unified Control • Automatic service • SIM credentials • Monetization • Traffic path selection advertisement • Non-SIM credentials opportunities • Billing • Automatic network • Single AAA • Consistent services • QoS selection infrastructure • Quota management • Roaming • Session persistence • Inter-access mobility • Wholesale/Roaming • “One Subscriber” Carrier Class Solution for MNOs, MSOs and Hotspot Providers © 2012 Cisco and/or its affiliates. All rights reserved. 12 12 One Access Technology, Many Deployment Models No SP involvement. User driven offload via Uncontrolled unmanaged device. Home/Soho Dual SSID SP provides dual SSID home device. (Community) Private and public (community) SSID SP installed and managed hot spots in Malls, Hot Spot / Hot Zone restaurants, Hotels,… SP installed and managed hot spots in high density High Density Wireless user areas (stadiums,..) SP install and manages outdoor WiFi for large Metro / Mesh dense urban areas1001110100100100010 coverage Enterprise Guest Access Enterprise Guest Access managed by SP © 2012 Cisco and/or its affiliates. All rights reserved. 13 13 Key Requirements Manageability, Network Reliability and Availability Carrier Grade 100s of thousands of APs ; Millions (residential); Millions of Clients Radio Performance Radio differentiation, Link Budgets, Beamforming, MIMO Interference Management, Radio Resource Management Mobility Seamless authentication and Fast Roaming/Handoff WiFi to WiFi (inter and intra-vendor), 3G/4G to WiFi Roaming Seamless roaming (with little or no user intervention) Support home and “visited” network scenarios Standards Compliant Critical to support Multi-vendor solution 3GPP compliance important to 1001110100100100010MNOs Common Billing, Policy and Subscriber Management Integration Leverage MPC/EPC for WiFi network Parental Control / Lawful Intercept / Local Breakout © 2012 Cisco and/or its affiliates. All rights reserved. 14 14 © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 15 MNO Home Network Policy Two Solitudes integrating HLR OCS PCRF CGF AP1140/1260/3500/36 MNO 00 Networks (auto/HREAP) Gy Gx Ga § Separate Cores § Hotspot Core vs. Indoor Hotspot WLC cluster MPC AP1550 (Unified) § EAP-SIM GGSN/ PGW Authentication Flex7500 (HREAP) 5508,6500/WiSM-2 Internet § Diameter vs. Radius Metro WiFi Policy AP1140/1260/3500 (auto/HREAP) § IP in the access will persist: control and AP3500/3600/3500p data planes SMB Managed AP 6500/WiSM-2 or 5508 WLC DHCP AAA Portal WiFi/Hotspot Mobile Networks BNG WiFi Access Provider Stadium / Large Policy Venue © 2012 Cisco and/or its affiliates. All rights reserved. 16 16 Home Network HLR AUC AAA Mobile Operator Cloud Components 3G/4G Core IP Transfer Point MAP SS7 NMS AAA MPC SUM PCR 3G/4G Mobile Packet Subscriber management Portal Core RADIUS authentication AAA Web portal Virtual PMIPv6 Network policy control Cloud Customer’s Internet Internet Wi-Fi APs Wireless ISG NAT, Controllers Intelligent Services Firewall Gateway CAPWAP DHCP Wireless LAN policy Session management Usage statistics RF management Layer 4 redirection Policy enforcement Roaming Transparent auto logon © 2012 Cisco and/or its affiliates. All rights reserved. 17 17 WLC L3 AP/ PMIPv6 MAG IPSG PMIPv6 L3 LMA AP= Access Point AP Subscriber MAG=Mobility Access Gateway WLC= Wireless LAN controller GTP Policy Enforcement LMA= Local Mobility Anchor LMA MAG GTP= GPRS Tunneling Protocol WLC/ IPSG= IP Services Gateway AP EWAG= Enhanced Wireless Access MAG GTP P-GW L2 GTP L3 Gateway Or GGSN PMIP= Proxy Mobile IP (v6) 802.1Q UE= User Entity (mobile terminal) Subscriber AP IPSe L3 Policy Enforcement c L3 802.1Q WAG AP WLC IPSec Internet UE © 2012 Cisco and/or its affiliates. All rights reserved. Core 18 Access Aggregation 18 Enabling Roaming and Wholesale Service MNO Home Network Policy HLR OCS PCRF CGF AP Portal DHCP AAA WLC WLC AP Roaming Internet Services Partner Core Access Network Policy Hotspot PGW/LMA AP GTP Aggregation Roaming Internet Services Switch Gn’ Partner Core AP WAG Optional GGSN Public/Large NAT Retailer Venue Providers AP/CPE Home Internet Services Network Core Wholesale Provider Community WiFi © 2012 Cisco and/or its affiliates. All rights reserved. 19 19 © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 20 Subscriber management SUM Radius authentication PCRF NCS MAP HLR AUC Web portals Portal AAA Network Policy control AAA SS7 ITP QNS Session management WLAN Policy L4 Redirection RF management CAPWAP Transparent Auto Logon Roaming Usage stats Policy enforcement Internet Internet DHCP NAT WLAN ISG FWSM CAPWAP Controller CAPWAP Control And Provisioning of Wireless Access Point ITP IP Transfer Point FWSM FireWall Service Module WLAN Wireless LAN QNS Quantum Networking Suite (Broadhop) SUM Subscriber Manager NCS Network Control System © 2012 Cisco and/or its affiliates. All rights reserved. 21 Internet Mobile Packet DMZ / 3rd Core Party DPI/NAT/FW Services LI Service NMS DHCP Policy Policy Enforcement Service
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