1. Seong-Ho Jeong, Sung-Hyuck Lee, Georgios Karagiannis 63rd IETF Meeting
QoS Model for Networks Using 3GPP QoS Classes (draft-jeong-nsis-3gpp-qosm-01)
Seong-Ho Jeong, Sung-Hyuck Lee, Georgios Karagiannis
63rd IETF Meeting

2. Outline Motivation and Objectives Issues Identified
3GPP QoS Classes/Attributes and QoS Mappings
Additional Optional QSPEC Parameters
UE-Initiated NSIS Signaling
GGSN-Initiated NSIS Signaling
Future Issues
Next Steps

3. Motivation
A QOSM provides a specific set of parameters to be carried in the QSPEC
Examples of QOSMs: RMD QOSM, Y.1541 QOSM, XG QOSM, etc.
Need for QoS interworking between 3GPP and non-3GPP networks
e.g., 3GPP QOSM
QNI
QNR

4. Objectives Main objectives of this document:
Describe a 3GPP QOSM based on 3GPP QoS classes and bearer service attributes
Propose additional optional QSPEC parameters

5. Issues Identified QoS mappings between 3GPP and other QoS classes
Additional optional QSPEC parameters for 3GPP QOSM
UE-initiated NSIS signaling procedure
GGSN-initiated NSIS signaling procedure

6. UMTS QoS Classes (TS 23.107) 3GPP TS 23.107 UTMS QoS Classes
“QoS Concept and Architecture,"
Provides the framework for Quality of Service within UMTS and specifies four QoS classes
UTMS QoS Classes
Conversational class
Streaming class
Interactive class
Background class
QoS Mappings
QoS Mapping between TS and Y.1541
QoS Mapping between TS and DiffServ/RMD

7. UMTS QoS 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

8. Additional Optional QSPEC Parameters
3GPP QoS Classes
Delivery of Erroneous SDU (DES)
Source Statistics Descriptor (SSD)
Signaling Indication (SI)
SDU Format Information (SFI)
Transfer Delay (TD)
Packet Loss Ratio (PLR)
Traffic Handling Priority (THP)

9. UE-initiated NSIS Signaling
QoS-NSLP at the UE (QNI) sends a QoS-NSLP RESERVE (in case of sender-initiated approach) message
The RESERVE message contains the Initiator QSPEC to the next hop in the external IP network through the GGSN.
The Initiator QSPEC specifies optional parameters specific to 3GPP QoS model as well as generic QSPEC parameters for the application flow

10. GGSN-initiated NSIS Signaling
The GGSN populates the initiator QSPEC based on the PDP context to create an NSIS session
The QoS-NSLP at the GGSN (QNI) sends a QoS- NSLP RESERVE (in case of sender-initiated approach) message which contains the Initiator QSPEC to the next hop in the external IP network
QoS mapping between the 3GPP and other QoS Classes (e.g., DiffServ or Y.1541) should be performed at the GGSN

11. Future Issues
NSIS signaling within the IP based transport part of UMTS
NSIS signaling between UMTS and WiMAX/WiBro via an IP-based backbone
NSIS signaling between UMTS and WLAN via an IP-based backbone

12. Next Steps Should it be a WG item?
Propose to make this become an NSIS WG document
Progress draft as an Informational RFC with feedback and review by the NSIS WG?