1. GPS Aided WLAN Network Finder
September 2009
GPS Aided WLAN Network Finder
Date:
Authors:
Name
Address
Company
Phone
Leo Estevez
Dallas, TX
75243
Texas Instruments
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2. GPS Aided WLAN Network Finder Leonardo Estevez, Ph.D. leonardo@ti.com
September 2009
GPS Aided WLAN Network Finder Leonardo Estevez, Ph.D.

3. Motivation September 2009 Out of AP Range Station
Mobile station users often want to know where they might be able to find an AP.
Stations within range of an AP and “out of AP range stations” can assist “out of AP range stations” by giving them a location/direction in order to connect.

4. September 2009
Proposed Protocol(1)

5. September 2009
Proposed Protocol(2)

6. Proposed 802.11v Modifications
September 2009
Proposed v Modifications
Frame Formats (section 7.3)
Modify paragraph : Location Descriptor sub-element:
In the Location request frame, the Location Descriptor field indicates whether the STA is requesting the Local Location, Remote Location or Remote AP Location, as shown in Table v28.
Add new line to Table v28 – Location Descriptor Bits 0-3 Description
2: Remote AP Location: location of the AP connected to the responder
3-15: Reserved
MLME/Synchronization/Active Scanning (section )
Modify paragraph : Acquiring synchronization, scanning
If a STA’s scanning does not result in finding a BSS with the desired SSID and of the desired type, or does not result in finding any BSS, the STA may send a Remote AP Location Request in a Probe Request frame.
Modify paragraph : Sending a probe response
Following STAs are allowed to respond to probe requests:
APs
STAs in IBSS
STAs in a BSS that receive the Remote AP Location request or BSS Security request
Action frame format (section 7.4)
Add new paragraph ( x): BSS Security Request frame format
The BSS Security Request frame uses the Action frame body format and is transmitted by a STA to request BSS Security Response frames. The format of the BSS Security Request frame body is shown in Figure…
Add new paragraph ( x): BSS Security Response frame format
Response Info: 1 octet
Bit 2:0: Security information
0: None
1: WEP
2: TKIP
3: CCMP
4: Other
5-7: Reserved
Capabilities field ( )
Add new capability bit: Remote AP location (dot11MgmtOptionAPLocationEnabled)
Add new capability bit: BSS Security (dot11MgmtOptionBSSSecurityEnabled)