1. QoS Model for Networks Using 3GPP QoS Classes (draft-jeong-nsis-3gpp-qosm-00) Seong-Ho Jeong, Sung-Hyuck Lee, Jongho Bang, Byoung-Jun Lee IETF NSIS Interim Meeting May 23, 2005

2. Outline  Motivation  3GPP QoS Classes and Attributes  Additional Optional QSPEC Parameters  A Scenario for E2E QoS Support  Next Steps

3. Motivation  QoS-NSLP defines message types and control information generic to all QoS models (QOSMs)  QSPEC object contains control information and QoS parameters defined by the QOSM  A QOSM provides a specific set of parameters to be carried in the QSPEC  Examples of QOSMs: DiffServ, IntServ, Y.1541, XG QOSM, etc.  QoS interworking between 3GPP wireless and non- 3GPP wireline networks will be needed for end-to- end QoS support  This draft describes a QoS-NSLP QOSM based on 3GPP QoS classes and bearer service attributes

4. Motivation (cont’d)  An Example Configuration with Multiple QOSMs e.g., 3GPP QOSM

5. QOSM based on UMTS QoS Classes  3GPP TS 23.107 –“QoS Concept and Architecture," Dec. 2004 –Provides the framework for Quality of Service within UMTS and specifies four QoS classes  3GPP TS 23.207 –“End-to-End QoS Concept and Architecture," Sept. 2004 –Provides the framework for end-to-end Quality of Service involving UMTS and complements TS 23.107  Need to specify optional QSPEC parameters and control processing to enable the 3GPP-QOSM

6. QoS Classes (TS 23.107)  Conversational Class –Preserve time relation (variation) between information entities of the stream –Conversational pattern (stringent and low delay) –Example of the application: VoIP, video telephony  Streaming Class –Preserve time relation (variation) between information entities of the stream –Example of the application: Streaming video

7. QoS Classes (TS 23.107)(cont’d)  Interactive Class –Request response pattern –Preserve payload content –Example of the application: Interactive web browsing  Background Class –The destination is not expecting the data within a certain time –Preserve payload content –Example of the application: Background download of emails or background file download * QoS Mappings between 3GPP networks and non-3GPP networks will be needed for QoS interoperability –Mapping between TS 23.107 and Y.1541 QoS Classes –Mapping between TS 23.107 and DiffServ QoS Classes

8. QoS Attributes (UMTS Bearer Service Attributes)  UMTS traffic class  Maximum bit rate  Guaranteed bit rate  Delivery order  Maximum SDU size  SDU format information  SDU error ratio  Residual bit error ratio  Delivery of erroneous SDUs  Transfer delay  Traffic handling priority  Allocation/Retention priority  Source statistics descriptor  Signaling indication

9. Additional Optional QSPEC Parameters  Most of related QSPEC parameters have already been specified in the QSPEC draft  Additional optional parameters – parameter Guaranteed bit rate [Gbr] – parameter No, Yes, - – parameter No, Yes

10. An E2E Network Architecture

11. An E2E Scenario

12. Next Steps  Is it useful for the NSIS WG?  Should it be a WG item? –Propose to make an NSIS WG item –Progress draft as an Informational RFC with feedback and review by the NSIS WG  Document status in the near future: –Detailed control processing rules –More scenarios for E2E QoS Support