1. TGaq Pre-Association Summary
October 2017
doc.: IEEE /1565r0
October 2017
TGaq Pre-Association Summary
Date:
Authors:
Stephen McCann, BlackBerry
Stephen McCann, BlackBerry

2. Pre-association What is it?
October 2017
doc.: IEEE /1565r0
October 2017
Pre-association
What is it?
Refers to a STA that is not connected
State 0
Not associated
Not authenticated
From the STA’s point of view
There is no network
There is no BSS
All frames are received/terminated at a second STA (e.g. an AP)
Can have any address it so desires
Stephen McCann, BlackBerry
Stephen McCann, BlackBerry

3. Pre-association What can be communicated in this state?
October 2017
doc.: IEEE /1565r0
October 2017
Pre-association
What can be communicated in this state?
Beacons & probes
Public action frames
Initial authentication frames
Stephen McCann, BlackBerry
Stephen McCann, BlackBerry

4. October 2017
doc.: IEEE /1565r0
October 2017
So why does TGaq help?
Small amounts of data can be exchanged between STAs, STA 1 and STA 2.
Service discovery
Information about services that can be accessed/reached “IF” STA 1 chooses to connect to the STA 2.
Note: There’s already a mechanism to allow small amounts of data to be exchanged for device discovery and fine timing measurements
Stephen McCann, BlackBerry
Stephen McCann, BlackBerry

5. What happens ‘after’ TGaq
October 2017
doc.: IEEE /1565r0
October 2017
What happens ‘after’ TGaq
STA 1 starts to authenticate with STA 2
If successful, the STA is:
Associated
A member of a BSS
A member of a WLAN
Transmit/receive frames into that WLAN
Has a universally unique address
Stephen McCann, BlackBerry
Stephen McCann, BlackBerry