QoS Model for Networks Using 3GPP QoS Classes

(draft-jeong-nsis-3gpp-qosm-02)

Seong-Ho Jeong, Sung-Hyuck Lee, Georgios Karagiannis, Gert-Jan van Lieshout

The 64th IETF meeting in Vancouver, Canada

Outline

Changes since -01 Additional optional QSPEC parameters UE-/GGSN-initiated NSIS signaling NSIS Signaling within the IP-based Transport Part of

UMTS/GPRS Next Steps

Changes since -01

Updated goals in Abstract and Introduction Updated additional optional QSPEC parameters Created a new section entitled "NSIS Signaling within

the IP-based Transport Part of UMTS/GPRS" Updated the interoperation between UMTS and

external IP-based Networks

Goals Define additional optional parameters for QSPEC whi

ch carries 3GPP QOSM specific information Describe how the QSPEC information should be proc

essed in QNEs Describe how other NSIS QoS models, e.g., RMD-Q

OSM and Y.1541-QOSM, can be applied and interoperate with the 3GPP PDP context signaling

Make UMTS interoperate with other NSIS QOSMs Make NSIS protocols applicable to UMTS and other

wireless networks Identify common QoS parameters for wireless networ

ks such that scarce wireless resources can be used efficiently

Additional Optional QSPEC Parameters

The following parameters have been identified as additional optional QSPEC parameters, and formats of most of the parameters have been defined– 3GPP QoS Classes: similar to Y.1541 classes – Delivery of Erroneous SDU (DES): 2 bits– Source Statistics Descriptor (SSD): 2 bits– Signaling Indication (SI): 2bits– SDU Format Information (SFI): 32 bits– Transfer Delay (TD): 32 bits– Packet Loss Ratio (PLR): 32 bits– Traffic Handling Priority (THP): 2 bits

More optional QSPEC parameters may be defined

UE-initiated NSIS Signaling

QoS-NSLP at the UE (QNI) sends a QoS-NSLP RESERVE message (in case of sender-initiated approach)– The RESERVE message contains the Initiator QS

PEC to the next hop in the external IP network through the GGSN.

– The Initiator QSPEC specifies optional parameters specific to 3GPP QOSM as well as generic QSPEC parameters for the application flow

UE-initiated NSIS Signaling (cont’d)

UE1(QNI) GGSN1 GGSN2 UE2(QNR)

IP-based Network(RMD-QOSM/

Y.1541-QOSM)

PDP Context Signaling (Primary)

PDP Context Signaling (Primary)NSIS Signaling NSIS Signaling

NSIS Signaling

QoS Mapping

QoS Mapping

PDP Context Signaling (Secondary)

PDP Context Signaling (Secondary)

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 message (in case of sender-initiated approach) which contains the Initiator QSPEC to the next hop in the external IP network

QoS translation between 3GPP and other QoS Classes (e.g., DiffServ or Y.1541) should be performed at the GGSN

GGSN-initiated NSIS Signaling (cont’d)

UE1 GGSN1(QNI) GGSN2(QNR) UE2

IP-based Network

(RMD-QOSM/Y.1541-QOSM)

PDP Context Signaling (Primary)

PDP Context Signaling (Primary)

PDP Context Signaling (Secondary)

NSIS Signaling PDP Context Signaling (Secondary)

QoS Translation

QoS Translation

NSIS Signaling within the IP-based Transport Part of UMTS/GPRS

UE(MS) Node B(BS) RNC(BSC)

NSIS Signaling

Activate PDP Context Request

SGSN GGSN

Radio Access Bearer Setup

Activate PDP Context Accept

Create PDP Context Response

NSIS Signaling

NSIS Signaling

Update PDP Context Procedure

3GPP-QOSM

3GPP-QOSM3GPP-

QOSM

Create PDP Context Request

Next Steps

Refine the format of the optional QSPEC parameters for 3GPP-QOSM

Describe further NSIS Signaling within the IP-based Transport Part of UMTS/GPRS

Refine the interoperation between 3GPP and non-3GPP networks

Refine QSPEC parameters as common parameters to be used for other wireless networks

Should this be a WG item?