Transcript
March, 2000
doc.: IEEE 802.11-00/036
Wireless LAN QoS Duncan Kitchin Intel Wireless LAN Operation
Submission
Slide 1
Duncan Kitchin, Intel WLO
March, 2000
doc.: IEEE 802.11-00/036
Requirements • Must have end-to-end signalling – quality of service setup has to include whole network, not just the wireless LAN segment – must interoperate with all existing networks
• Must have application support – has to work with existing protocol stack & applications – QoS features in wireless LAN must be transparent application should not know or care what the underlying transport is Submission
Slide 2
Duncan Kitchin, Intel WLO
March, 2000
doc.: IEEE 802.11-00/036
Proposed Solution • MAC provides statistical prioritization based on 802.1p tags • Real time connection setup handled at higher layers – RSVP in the network layer for end-to-end signalling – Subnet bandwidth management (SBM) uses RSVP state to attach 802.1p tags to packets
Submission
Slide 3
Duncan Kitchin, Intel WLO
March, 2000
doc.: IEEE 802.11-00/036
End to end signalling • MAC layer doesn’t have the end to end picture • Lowest layer that can have end to end signalling is the network • Connections are established at network layer, with requirements pushed downwards into the MAC using SBM Connection Setup NWK
Submission
NWK
NWK
MAC
MAC
MAC
MAC
PHY
PHY
PHY
PHY
Slide 4
Duncan Kitchin, Intel WLO
March, 2000
doc.: IEEE 802.11-00/036
Summary • Simple, incremental extension to 802.11 • Works with existing protocol stack (TCP/IP) • Well defined IETF protocol (RSVP) allows access to QoS services transparently, ensures application support
Submission
Slide 5
Duncan Kitchin, Intel WLO
