Transcript PPT Version

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
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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
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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
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Define additional optional parameters for QSPEC
which carries 3GPP QOSM specific information
Describe how the QSPEC information should be
processed in QNEs
Describe how other NSIS QoS models, e.g., RMDQOSM 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
networks such that scarce wireless resources can be
used efficiently
Additional Optional QSPEC Parameters
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The following parameters have been identified as
additional optional QSPEC parameters, and formats
of most of the parameters have been defined
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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
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QoS-NSLP at the UE (QNI) sends a QoS-NSLP
RESERVE message (in case of sender-initiated
approach)
– 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 QOSM as well as generic
QSPEC parameters for the application flow
UE-initiated NSIS Signaling (cont’d)
UE1(QNI)
GGSN1
GGSN2
UE2(QNR)
PDP Context Signaling
(Primary)
NSIS Signaling
QoS
Mapping
PDP Context Signaling
(Secondary)
NSIS Signaling
PDP Context Signaling
(Primary)
IP-based
Network
NSIS Signaling
(RMD-QOSM/
Y.1541-QOSM)
QoS
Mapping
PDP Context Signaling
(Secondary)
GGSN-initiated NSIS Signaling
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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 QoSNSLP RESERVE message (in case of senderinitiated 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)
PDP Context Signaling
(Primary)
PDP Context Signaling
(Secondary)
PDP Context Signaling
(Primary)
NSIS Signaling
PDP Context Signaling
(Secondary)
IP-based
Network
QoS
Translation
UE2
(RMD-QOSM/
Y.1541-QOSM)
QoS
Translation
NSIS Signaling within the IP-based
Transport Part of UMTS/GPRS
UE(MS)
Node B(BS)
RNC(BSC)
SGSN
Activate PDP Context Request
GGSN
Create PDP
Context Request
NSIS Signaling
Create PDP
Context Response
Radio Access Bearer Setup
3GPPQOSM
NSIS Signaling
NSIS Signaling
Update PDP
Context Procedure
Activate PDP Context Accept
3GPPQOSM
3GPPQOSM
Next Steps
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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 non3GPP networks
Refine QSPEC parameters as common parameters
to be used for other wireless networks
Should this be a WG item?