1. Mesh QoS Control Date: 2008-01-14 Authors: January 2008
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Yongho Seok (LG), Alexander Safonov (IITP RAS)

2. January 2008
Motivation (1/3)
IEEE e supports the prioritized QoS (EDCA) and the parameterized QoS (HCCA)
IEEE s may support the prioritized QoS (EDCA) and support no Hybrid Coordinator (HC)
IEEE s needs the end-to-end prioritized QoS
Yongho Seok (LG), Alexander Safonov (IITP RAS)

3. January 2008
Motivation (2/3)
For using the prioritized QoS (EDCA) in IEEE s, intermediate MP should know User Priority (UP) of mesh data
Currently, MP may infers UP of mesh data through TID subfield of QoS Control field
If one of intermediate MPs does not support the prioritized QoS (EDCA), what is happened?
AC_VI
AC_BE
AC_BE
AC_BE
QoS
MP 1
Non-QoS MP 2
QoS
MP 3
QoS
MP 4
QoS
MP 5
Yongho Seok (LG), Alexander Safonov (IITP RAS)

4. January 2008
Motivation (3/3)
When one of intermediate MPs is congested, TID of some mesh data is changed to a lower priority. What is happened?
AC_VI
AC_BE
AC_BE
AC_BE
QoS
MP 1
Congested QoS MP 2
QoS
MP 3
QoS
MP 4
QoS
MP 5
Yongho Seok (LG), Alexander Safonov (IITP RAS)

5. Proposal Mesh TID in Mesh Header TID in QoS Control field
January 2008
Proposal
Mesh TID in Mesh Header
Mesh Flag field in Mesh Header has Mesh TID subfield
It indicates the UP of mesh data frames within the end-to-end mesh path
It is set at Source MP and is not changed by intermediate MPs
TID in QoS Control field
Decides the per-hop behavior for the prioritized QoS (EDCA)
Yongho Seok (LG), Alexander Safonov (IITP RAS)

6. Address Extension Mode
January 2008
Proposal
Mesh Flags subfield format for Mesh QoS Control
MAC HEADER
PAYLOAD
ADDR1 RA
ADDR2 TA
ADDR3
ADDR4
Mesh Header
SNAP/LLC…
TYPE
SUBTYPE
Flags
TTL
Seq #
Address Extension
Address Extension Mode
Mesh TID
Reserved B0 B1
B B5
B B7
Yongho Seok (LG), Alexander Safonov (IITP RAS)

7. Proposal Use Cases of Mesh TID January 2008 AC_VI AC_BE AC_VI AC_VI
QoS
MP 1
Non-QoS MP 2
QoS
MP 3
QoS
MP 4
QoS
MP 5
AC_VI
AC_BE
AC_BE
AC_VI
QoS
MP 1
Congested QoS MP 2
Congested QoS MP 3
QoS
MP 4
QoS
MP 5
Yongho Seok (LG), Alexander Safonov (IITP RAS)

8. Proposal QoS Control field format for MP *Reference: 802.11-REVma-D9.0
January 2008
Proposal
QoS Control field format for MP
*Reference: REVma-D9.0
Yongho Seok (LG), Alexander Safonov (IITP RAS)

9. Conclusion Proposal suggests two level QoS control scheme
January 2008
Conclusion
Proposal suggests two level QoS control scheme
QoS Control for local link
QoS Control for end-to-end mesh path
Proposal specifies QoS Control field when MP transmits QoS data frame
Yongho Seok (LG), Alexander Safonov (IITP RAS)

10. January 2008
Motion
Move to include normative text in document s-normative-text-for-mesh-qos-control.doc into the TGs draft.
Mover: Alexander Safonov
Seconder:
Result:
Yongho Seok (LG), Alexander Safonov (IITP RAS)