Doc.: IEEE 802.11-07/xxxx Submission July 2007 Lei Du, DoCoMo Beijing Labs Slide 1 End-to-End QoS...
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July 2007 Lei Du, DoCoMo Beijing Labs Slide 1 doc.: IEEE 802.11-07/xxxx Submission End-to-End QoS awareness for admission control Date: 2007-07-17 Authors: N am e C om pany A ddress Phone em ail LeiD u, Yong B ai,Lan Chen D oCoM o Beijing Labs Inc. 7/F Raycom Infotech Park Tow erA , N o.2 K exueyuan South Road, H aidian District, Beijing, P.R.China +86-10-82861501ex.336 {du, bai, chen}@ docom olabs- beijing.com.cn Fujio W atanabe D oCoM o U SA Labs Inc. 3240 H illview A ve, Palo A lto,CA 94304- 1201, USA +1-650-496-4726 watanabe@ docom olabs-usa.com A kiraY am ada N TT D oCoM o Inc. 3-5, H ikarinooka,Yokosuka-shi, Kanagawa 239-8536, Japan +81-46-840-6527 yamadaakir@ nttdocomo.co.jp Notice: This document has been prepared to assist IEEE 802.11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.11. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures < http:// ieee802.org/guides/bylaws/sb-bylaws.pdf >, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair [email protected] as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.11 Working Group. If you have
Transcript of Doc.: IEEE 802.11-07/xxxx Submission July 2007 Lei Du, DoCoMo Beijing Labs Slide 1 End-to-End QoS...
July 2007
Lei Du, DoCoMo Beijing LabsSlide 1
doc.: IEEE 802.11-07/xxxx
Submission
End-to-End QoS awareness for admission control
Date: 2007-07-17Authors:
Name Company Address Phone email
Lei Du, Yong Bai, Lan Chen
DoCoMo Beijing Labs Inc.
7/F Raycom Infotech Park Tower A, No.2 Kexueyuan South Road, Haidian District, Beijing, P.R.China
+86-10-82861501ex.336 {du, bai, chen}@docomolabs-beijing.com.cn
Fujio Watanabe DoCoMo USA Labs Inc.
3240 Hillview Ave, Palo Alto, CA 94304-1201, USA
+1-650-496-4726 [email protected]
Akira Yamada NTT DoCoMo Inc. 3-5, Hikarinooka,Yokosuka-shi, Kanagawa 239-8536, Japan
+81-46-840-6527 [email protected]
Notice: This document has been prepared to assist IEEE 802.11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.11.
Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures <http:// ieee802.org/guides/bylaws/sb-bylaws.pdf>, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair [email protected] as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at <[email protected]>.
July 2007
Lei Du, DoCoMo Beijing LabsSlide 2
doc.: IEEE 802.11-07/xxxx
Submission
Abstract
This presentation will discuss the End-to-End (E2E) QoS aware admission control scenarios between WLAN and external networks to improve the user satisfaction.
July 2007
Lei Du, DoCoMo Beijing LabsSlide 3
doc.: IEEE 802.11-07/xxxx
Submission
• User satisfaction- describes how the application is perceived by the end-users.
- is determined by E2E QoS parameters as defined in ITU-T G.1010[1], including delay, delay jitter, packet loss rate, etc.
⇒ E2E QoS awareness needs to be considered in WLAN.
• Admission control- has been used to achieve QoS awareness.
- is defined in 802.11e by using ADDTS request/response frame exchange.
- takes into account of current traffic status within a BSS or multiple BSSs if the AP switch is deployed.
⇒ E2E QoS aware admission control will improve users satisfaction.
Motivation
July 2007
Lei Du, DoCoMo Beijing LabsSlide 4
doc.: IEEE 802.11-07/xxxx
Submission
What is E2E QoS awareness?
SSPN/Internet
Email:Email:Typical data amount: <10 kBOne-way delay: several minutes Packet loss rate: 0
Conversational Voice:Conversational Voice:Typical data rate: 4-64kbpsOne-way delay: <150ms (preferred)
<400ms (limit)Delay variation: <1msPacket Loss rate: <3%STA1
MT1WLAN
Cellular
Conversational Voice:Conversational Voice:Typical data rate: 4-64kbpsOne-way delay: <30ms (preferred)
<50ms (limit)Delay variation: <1msPacket Loss rate: <3%
E2E QoS
Per-BSS QoS
July 2007
Lei Du, DoCoMo Beijing LabsSlide 5
doc.: IEEE 802.11-07/xxxx
Submission
Admission Control
Reference : 11-03-0727-02-0wng-interworking-mac-issues.ppt
• Admission control within one BSS is proposed in 802.11e.• BUT
– How does .11e interact with other admission control decisions of external networks?
– What are the impacts on user experience (source STA/MT and destination STA/MT)?
AdmissionControl
User Authorisation Information(from SSPN)
Wireless Link (BSS)Traffic Information Control
SSPN information:- load at other APs or SSPN (how?)
July 2007
Lei Du, DoCoMo Beijing LabsSlide 6
doc.: IEEE 802.11-07/xxxx
Submission
What’s benefits from E2E QoS aware admission control? (1/2)
• E2E QoS aware admission control can increase/decrease the BSS admission capacity adaptively to meet E2E QoS requirements at the user.
SSPN/InternetSTA1
MT1
WLAN Cellular
e.g., Total Delay 200ms
Aggregate Delay 70-100msTolerable Delay 100-130ms
BSS Admission Capacity:BSS Admission Capacity:
Admission capacity will be adaptive to accept or reject additional transmission
July 2007
Lei Du, DoCoMo Beijing LabsSlide 7
doc.: IEEE 802.11-07/xxxx
Submission
What’s benefits from E2E QoS aware admission control? (2/2)
• E2E QoS aware admission control may use an unified QoS aware parameter setting among heterogeneous access networks depending on the traffic classes. This unified parameter setting will improve the end-user satisfaction.
SSPN/InternetSTA1
MT1
WLAN Cellular
e.g., Voice: Access Delay parameter, Data: Packet Error Rate
Cellular Admission Control
E2E QoS aware Request: PER 3%
QoS parameter setting:QoS parameter setting:
Unified QoS parameter setting can be used among heterogeneous access networks.
Individual Admission Control WLAN Admission Control
July 2007
Lei Du, DoCoMo Beijing LabsSlide 8
doc.: IEEE 802.11-07/xxxx
Submission
Summary and Recommendation
• E2E QoS aware admission control will– Improve user experience in the application layer
– Adjust the WLAN admission capacity adaptively without violating QoS of ongoing connections.
– Use unified methodology for E2E QoS parameter setting among heterogeneous access networks to meet end-user satisfaction.
July 2007
Lei Du, DoCoMo Beijing LabsSlide 9
doc.: IEEE 802.11-07/xxxx
Submission
Thanks & Questions
July 2007
Lei Du, DoCoMo Beijing LabsSlide 10
doc.: IEEE 802.11-07/xxxx
Submission
Straw Poll
• Should Task Group U receive further presentations of methods supporting E2E QoS aware for admission control?
• Yes: No:
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