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QoS Model for Networks Using 3GPP QoS Classes (draft-jeong-nsis-3gpp-qosm-00)

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. Outline. Motivation 3GPP QoS Classes and Attributes Additional Optional QSPEC Parameters

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QoS Model for Networks Using 3GPP QoS Classes (draft-jeong-nsis-3gpp-qosm-00)

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  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 • <Token bucket> parameter • Guaranteed bit rate [Gbr] • <Delivery of erroneous SDU (DES)> parameter • No, Yes, - • <Source statistics descriptor (SSD)> parameter • <Signaling indication> 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

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