doc.: ieee 802.21-04/xxxr0 submission may 2004 stephen mccann, siemens roke manorslide 1 ieee 802.11...
TRANSCRIPT
May 2004
Stephen McCann, Siemens Roke Manor
Slide 1
doc.: IEEE 802.21-04/xxxr0
Submission
IEEE 802.11 Wireless Interworking with External
Networks (WIEN) Study Group
Stephen McCann, Siemens Roke [email protected]
May 2004
Stephen McCann, Siemens Roke Manor
Slide 2
doc.: IEEE 802.21-04/xxxr0
Submission
Objective
Presentation to IEEE 802.21 to describe the scope and work of the new IEEE 802.11 WIEN Study Group.
May 2004
Stephen McCann, Siemens Roke Manor
Slide 3
doc.: IEEE 802.21-04/xxxr0
Submission
IEEE 802.11 Interworking
Interworking is defined as the functions and protocols necessary for integration of a wireless ethernet hotspot (STA and AP) within an existing network (such as a public cellular one), maintaining security, QoS and control.
May 2004
Stephen McCann, Siemens Roke Manor
Slide 4
doc.: IEEE 802.21-04/xxxr0
Submission
Motivation
Hotspot use is currently gaining interest not only with ISPs but also with Cellular operators. It will become an increasing larger issue in public communications and it is felt by many that interworking of hotspots to external networks must be addressed by the IEEE 802.11, even if the conclusion of an initial investigation is that further standardization is not actually required.
May 2004
Stephen McCann, Siemens Roke Manor
Slide 5
doc.: IEEE 802.21-04/xxxr0
Submission
Motivation II
Interworking will increase the range of services and market reach of IEEE 802.11 devices. Additionally it will enable IEEE 802.11 devices to become high end terminal devices allowing user access to services only available within the cellular communications market. It is felt that both terminal and access point manufacturers will benefit from this expansion.
May 2004
Stephen McCann, Siemens Roke Manor
Slide 6
doc.: IEEE 802.21-04/xxxr0
Submission
Scope Diagram
STA Service Provider
External Network
802.11 MAC & PHY
Stack Level
Authentication
ResourceManagement
Authorization
Not in scope
May 2004
Stephen McCann, Siemens Roke Manor
Slide 7
doc.: IEEE 802.21-04/xxxr0
Submission
Scope• Identify technical requirements, such as those on the
MAC layer.• Determine impacts on IEEE 802.11, for example:
– network selection: is anything additional required in the MAC to support network selection, such as operator advertisement, discovery of network capabilities before authentication etc.
– resource management: MAC layer interactions with end-to-end resource allocation protocols, and exchange of information between MAC and higher layers to support admission control, accounting, resource monitoring.
• Decide whether a TG is needed, and if so define PAR and 5Criteria.
May 2004
Stephen McCann, Siemens Roke Manor
Slide 8
doc.: IEEE 802.21-04/xxxr0
Submission
Work• A decision regarding the creation of a Task Group• Creation of PAR and 5Criteria with the objective of
producing an output document which defines how to interwork IEEE 802.11 equipment with external networks (Cellular, Enterprise, ISPs) and where the control of such a system lies.
• Draft set of input requirements (e.g. layer 2 and layer 3 interactions)
• Determine relationships with other IEEE 802 groups.• To underpin specific requirements raised by external
standardization bodies
May 2004
Stephen McCann, Siemens Roke Manor
Slide 9
doc.: IEEE 802.21-04/xxxr0
Submission
WIEN SG Roadmap
• May 2004 : Initial scope bashing
• July 2004 : Draft PAR & 5 Criteria
• September 2004 : Refinement of PAR & 5 Criteria
• November 2004 : Motion to create TG
• January/March 2005 : TG creation
May 2004
Stephen McCann, Siemens Roke Manor
Slide 10
doc.: IEEE 802.21-04/xxxr0
Submission
Issues• IEEE 802.11 has to support wireless cellular
functionality regardless of IEEE 802.21 output– WIEN TG (possibly) will have mandate to write
amendment to IEEE 802.11 standard
• WIEN would like IEEE 802.21 to complete their media independent handoff work so that it can ensure conformance to that model.
• WIEN requires IEEE 802.21 issues, regarding handoff models, which have specific impacts on IEEE 802.11.
May 2004
Stephen McCann, Siemens Roke Manor
Slide 11
doc.: IEEE 802.21-04/xxxr0
Submission
Additional IEEE 802.21 outputs, which would be useful to WIEN
• Trigger models
• Layer 2 interactions
• Network Discovery issues
• Authentication
• IEEE 802.11 beacon enhancements