doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 1 A Service Provider View of QoS Needs for Hot Spot and Public Venues Joe Houle AT&T Business Services AT&T Business Services Managed Services Managed Services

doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 2 Talk Outline A Look at Hot Spots (HSs) and Public Venues (PV) Perception of Market and Growth QoS and Capacity Issues Needs of QoS Based Services Recommendations

doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 3 A Look at Hot Spots and Public Venues Services not sold directly to the public but rely on ISPs and telecommunications providers to market, bill, and support WLANs are proliferating and are reaching higher speeds but at a penalty of reduced range Devices used in the enterprise space will likely be the same devices used for the HS and PV spaces Quality of Service will be required for bandwidth tiered service, IP Telephony, Gaming and Streaming services Access network devices will require 5 years of useful economic life Desire to upgrade reliability, reduce management overhead, increase utility

doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 4 Perception of Market and Growth Research firm In-Stat/MDR estimates users will snap up about 16 million Wi-Fi devices, which typically plug into laptops and other computers, this year. A company has been created to deploy a nationwide wireless data network in coffee shops, hotels and other public venues. Many analysts initially predicted that Wi-Fi would undercut the expensive effort of major carriers to build out new cellphone networks capable of delivering video and other streams of data to hand-held devices. Now some are arguing that Wi-Fi and cellphone technologies may complement one another and spur demand for such services and cut the costs of delivering them. Goal is to provide wireless access within five minutes of anyone in the top 50 U.S. metropolitan areas. This means deploying a network with tens of thousands of access points" by 2004

doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 5 QoS, Capacity, Inter-Op Needs Businesses view telephony quality as part of company image Hot Spots and Public Venues must run with substantial loading to maximize return on capital expenditure Radio networks will remain throughput-challenged due to spectrum, range and power constraints (cant raise speed like Ethernet) MAC QoS guarantees are necessary to preserve end-to-end connection quality under heavy/overload conditions…QoS must be scaleable Parameterized QoS simplifies interface with corporate and backbone networks, tiered services, supports end-to-end concatenation of links Increasing use of IP Telephony, multimedia (audio, video) and gaming for customer requires QoS future-proofing QoS option must be common to all QOS-enabled clients to maximize utility regardless of location The wired network behind the Access Point is already QOS-enabled, it is standardization in the wireless space that is in the critical path

doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 6 Radio Resource Management Needs Reporting of condition of the wireless link and status is required –Signal Strength (AP and Client) –Error rate –Loading of the wireless link –Capabilities of the client QoS(EDCF-HCF-Legacy) security Provide mechanisms for client assisted handoff, remotely control channel/power, security for signaling/managed access

doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 7 PWLAN Service Provider - Hot Issues -

doc.: IEEE /001r0 Submission January 2003 Joe Houle, AT&TSlide 8 QOS-related Recommendations Facilitate managed-service, QoS-dependent market via required network-grade mode Make more user friendly by migrating from connectivity standard to access standard Provide service providers options for QoS and Radio Resource Management as service rolls out