1. Extensions to DLS Date: 2006-09-18 Suman et al.
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Suman et al.

2. Agenda Overview No-AP Upgrade Power Save DLS Peer Discovery Motion
Suman et al.

3. Overview
We have identified few short comings in current DLS scheme defined as part of REVma/D8.0 draft.
Why new Study Group ?
REVma 8.0 draft has no changed text around DLS scheme, so this change can’t be done in TGm
There are no active TG who can take up this work
Purpose of this Study Group ?
Narrow focus: Limit it to DLS extensions covered in this presentation
Create amendment to make changes to existing DLS scheme
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4. NO-AP Upgrade
Current DLS Scheme requires vendors to upgrade STAs & APs
The lack of DLS aware APs as currently required by 11e DLS is a key obstacle in the adoption of DLS.
Allowing a version of DLS which doesn’t require AP upgrade will allow much faster adoption of DLS
NOT ad-hoc direct link – infrastructure BSS & AP still required.
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5. Power Save
Allowing both STAs that take part in DLS to go into Power Save mode to conserve power
Sometimes this feature is also used for scanning other channels
Current DLS Scheme doesn’t have any scheme which allows STAs to do this, DLS links must be torn down to allow background scanning or power save.
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6. DLS Peer Discovery
DLS Link Quality: In some cases (based on location of STA) it is possible that DLS will reduce the STA to STA throughput
Good for STAs to have some measurements which can help in making right decision
DLS Capability: Before any STA starts DLS handshake, STA needs to know the capability of STAs around it
Current DLS scheme doesn’t support any such measurement
Possibility to develop this functionality in 11k
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7. Motion
Move that the WNG SC recommends that the IEEE WG form a Study Group to examine DLS operation with non e APs and to examine power saving extensions to DLS with the intent to create a PAR and five criteria to form a new task group.
Mover:
Seconder:
Results: Yes No Abstain
Suman et al.