1 © NOKIA

Walid Hosseiniwalid.hosseini@nokia.com

Nokia CDMA BUCDG Technology Forum

October 2nd, 2003

CDMA and WLAN ConvergenceImproving User Experience

2 © Nokia

Introduction• WLAN has clearly reached the penetration to become a permanent fixture

of the wireless landscape

• Virtually anyone can provide Internet access using WLAN• AP + Broadband = $100 + $30/month

• So, is the wireless industry up for grabs?• Is McDonald’s or Starbucks the next wireless Goliath?• What about Microsoft?

• Or is WLAN irrelevant to wireless carriers?• Disruption of ‘wireless data’ picture of 3 years ago• VoIP in enterprise

• What can make WLAN a strength rather than a threat?

• How can one compete in providing a service that others can seemingly provide for free?

• Leveraging existing strengths to enhance existing users’ experience

3 © NOKIA

Value Points

CommercialWLANService

CommercialWLANService

DeviceManufacturing

DeviceManufacturing

ServiceProvisioning

ServiceProvisioning

NetworkDeployment

&Management

NetworkDeployment

&Management

CoreTechnology

CoreTechnology

PhysicalVenues

PhysicalVenues

DataBackhaul

DataBackhaul

BillingBilling

T-MobileCometa Networks

AirportsHotelsCourthousesShopping centers

CiscoNetgearD-LinkNokiaSpectralinkPalmHP

AtherosIntelProximTI, etc.

VerizonSprintT-Mobile

NetworkAggregation

BoingoWayportHostpotzzWiFi Metro

SystemIntegration

WFIIBMHP

4 © NOKIA

Where is the Value?• Not possible to compete on network or device performance

• Open technology• Universal access to commodity technology

• Network deployment and management is also a commodity• Largely an IT infrastructure problem with predictable cost structure

• But what are the hurdles to providing WLAN as a commercial service?• Customer acquistion• Seamless network• Simple and consistent billing• Compelling service

• Key is not to think of the access itself as having much value

• Rather, dealing directly with the customer’s experience with the service• From sign up, to access, to billing• And Service Features

5 © NOKIA

• Most successful technologies have some common features• E.g. telephone, television, radio, credit cards

• User is blissfully unaware of the technology• Usage has become second nature

• But keenly aware of its benefits and its cost• Cost of course must be acceptable to user in relation to the benefit

• This is largely the case with home usage of WLAN• Wireless access to my existing broadband for about $100.

• Some additional requirements for user experience in a commercial setting• Simple provisioning • Easy to use• Ubiquitous access, but only in areas needed by the user• Clear and simple billing• And a feature rich, compelling service

User Experience

6 © NOKIA

Convergence of Mobile TechnologiesNokia´s Vision

Within the Mobile World, an increasing part of all human communication will take place with personal wireless devices. The content of personal mobile communication evolves from voice to text to images to multimedia.

6 © NOKIA 2001 / November 2001 / Bluetooth Marketing

7 © NOKIA

What is the IP Multimedia Subsystem?

IMSApplication Servers (Operator & 3rd Party)

PresenceServer

LocationServer

MessagingServer

GroupServer

PTTServer

…Server

GamingServer

ControlServer

SubscriberServices DB

• IMS is:• A Standardized SIP-

Based Framework for IP Communications

• A Centralized Services Subsystem !!!! Services Available Across Multiple Access Networks

• !!!! 1x, 1xEV-DV, WLAN, DSL…

IPPacket-Switched Network

8 © NOKIA

Some SIP Based Services

• Peer-to-Peer – multiplayer (2 or more) gaming

• Content Sharing – users have access to data on others’ devices

• SWIS – “See What I See” shares video images from camera and sound among devices

• RT Video Call – full duplex See What I See in Real-Time

• VoIP – quality equal or better than today’s circuit-switched calls

• PEC – Presence Enhanced Contacts displays presence info for each contact

• Dynamic Sharing – dynamic form of content sharing

• Rich Call – all the above, including enablers, converge to an integrated end user experience

• The user should think of WLAN as extending the reach and QoS of these services

9 © NOKIA

• How is the Enterprise WLAN environment different?

• What are some opportunities for Cellular convergence?

• Main differences between enterprise and commercial WLAN• User owns network• Looking for ROI

• Drivers for convergence of Cellular with WLAN are somewhat different for the Enterprise

• Work force flexibility• Productivity• Savings

• There will be a phased approach to technology deployment

Enterprise WLAN

10 © NOKIA

Enterprise WLAN Requirements

• Security • Support current enterprise authentication mechanisms (RADIUS)• Detection of rogue access points and activity• Security policy enforcement• Enable different levels of access (employee, contractor, guest)• WPA support at minimum; AES desirable

• Management and Monitoring• Unified security and management tools for large deployments• Visualization of configuration and operational status• Automated coverage and load monitoring

• Adaptability -- Automatically reconfigure the WLAN network• Dynamic power control and channel allocation• Load balancing between APs

11 © NOKIA

Enterprise WLAN Requirements (cont.)

• Mobility and Session persistence• Fast handover for VoIP• Support for roaming from corporate WLAN network to 3G

• Scalability• Solution must scale up – can adapt as enterprises grow

• Support for VoIP• QoS support vital for this

• Fast handover vital as well• Reliability

• Adapt to device (AP/switch) failure • Dynamic RF adjustment and channel assignment for interference

mitigation

12 © NOKIA

Seamless roaming on campus Seamless roaming on campus Seamless roaming on campus

Enterprise Mobility Evolution

VoIP or VoWLAN on private networkVoIP or VoWLANVoIP or VoWLAN on private on private

networknetwork

Session handover between 3G & WLAN networks Session handover between 3G & Session handover between 3G &

WLAN networks WLAN networks

11

22

33

• Data session mobility (laptops, PDAs, etc)

• Data, Voice, and Multimedia session handovers (laptops, PDAs, 802.11 enabled terminals)

• Data, Voice, and Multimedia session handover plus 3G to Private network capability

•• APsAPs Only Only

•• APsAPs•• WLANWLAN ControllerController•• TerminalsTerminals

•• APsAPs•• WLANWLAN Controller Controller •• TerminalsTerminals•• OperOper. Ntwk . Ntwk

InfrastructureInfrastructure

20042004

11--2 years2 years

11--3 years3 years

RequirementsRequirementsMobility PhasesMobility Phases TimingTiming

oror•• APsAPs & WLAN & WLAN

“Switches” “Switches”

13 © NOKIA

Enterprise WLAN Architecture - Phase III

Corporate Network

Controller & Wireless Switch

Controller & Wireless Switch

Thin AP Thin AP

Thin AP

3GNetwork

Mobility from enterprise to 3G network

Handover Communication between Controller and 3G network

Border FW/VPN

Border FW/VPN

14 © NOKIA

Conclusion• WLAN is here to stay and will impact the wireless landscape

• Not all WLAN networks are equal

• Commercialization of WLAN networks is an extremely tough problem

• Devices and air interface access will quickly become commodities

• Value is in area of service provisioning• Feature rich services• Extend reach and quality of cellular services• Reduce cost of cellular services

• Enterprise mobility will be a key area for WLAN• Very different from commercial environment• Evolutionary over next 2 to 3 years• Voice will be a significant driver

• Ultimately, user experience is the key determining factor

• Usage of the technology must be so simple as to be second nature