S. Gundavelli, J. Korhonen, M. Liebsch, P. Seite, H. Yokota,

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Presentation transcript:

S. Gundavelli, J. Korhonen, M. Liebsch, P. Seite, H. Yokota, Quality of Service Option for Proxy Mobile IPv6 draft-liebsch-netext-pmip6-qos-01.txt S. Gundavelli, J. Korhonen, M. Liebsch, P. Seite, H. Yokota, IETF83, Paris NetExt WG 28th March 2012

Motivation and Scope Mobile operator systems enable QoS differentiation to serve mobile access through cellular radio QoS policy control for 3G radio access from Policy and Charging Control (PCC) system Connectivity through non-cellular acccess supported for offload and/or handover (WiFi, WiMax) IP network QoS accomplished by DiffServ mechanisms No QoS interworking so far between cellular and non-cellular radio access Standardization started interfacing PCC to MAG for non-cellular radio access Demand for a PCC-independent solution For networks, which do not deploy a PCC system For all networks until PCC support is available for non-cellular access

Status Initial version of this draft presented at IETF82 in Taipei Received valuable comments and indication of interest in this work Updated draft tries to clarify comments Updated draft comprises details about Use cases Protocol operation QoS option format and proposed list of attributes Implementation and deployment example with WiFi & BNG (Broadband Network Gateway)

Exemplary architecture Policy Control cellular access QoS rules for downlink traffic mapping to transport network QoS MAG access bearer IP connectivity LMA access bearer PCEF access bearer DiffServ for Transport Network Layer QoS PCEF Convey available QoS info from LMA to MAG with PMIPv6 signaling Convey new IP session info from MAG to LMA with PMIPv6 signaling AP non-cellular access AP MAG WLANC AP e.g. .11e QoS support IP-based transport network QoS support

Scope of this work Support enabling QoS differentiation of traffic between MAG and LMA for any non-cellular access Mainly enforcement and validation of uplink QoS at the MAG Support mapping of QoS policies between radio-specific QoS classes and IP network Transport of Flow Information and QoS Class indexes Interpretation of QoS Class indexes is deployment specific, hence out of scope Focus on the signaling between MAG and LMA

Main Use Cases Handover of established QoS rules to non-cellular radio access Apply same QoS differentiation on the path between LMA and MAG, which serves the MN‘s non-cellular technology Enable mapping of admitted QoS classes to QoS differentiation techniques of non-cellular access, e.g. .11e Establishment of QoS rules while MN is attached to non-cellular radio access (i.e. QoS rules negociation) MAG may propose QoS rules to LMA for approval Priority class indicated in uplink MAG may assess QoS according to flow information MN may utilize access-specific control plane (e.g. WMM) to indicate demant for QoS differentiation LMA authorizes proposed QoS or assesses QoS according to flow information

Operation: Handover of QoS rules

Operation: Establishment of QoS rules

Next Is this work and document going into the right direction? Interest indicated at last IETF: Adopt as Working Group item?