Presence and IntegratedPresence and Integrated

Xiaotao WuIRT Group MeetingFebruary 25, 2004

Communications (PIC) Working Communications (PIC) Working GroupGroup

GoalGoal

Communication is enhanced through the inclusion of rich presence information, through which participants may see not only who is on-line, but also where they are and what they are doing, so that communications becomes planned and desired instead of disruptive and haphazard.

A simple exampleA simple example

Talk to Xiaotao

•Over the phone

•Go to his place andtalk face to face

•IM and meet himin conference room

ActivitiesActivities Arlington, April 2004

Venue: Spring 2004 Internet2 Member Meeting, Arlington, VAPresence Elements (anticipated): location (automatic); room session name; session end time; per-room internet weather

Honolulu, January 2004Venue: Winter 2004 Joint Techs Workshop, University of HawaiiPresence Elements: location (automatic); room session name; session end time; per-room internet weatherClients: sipc (Windows, Linux); presence portal

Indianapolis, October 2003Venue: Fall 2003 Internet2 Member Meeting, Indianapolis, INPresence Elements: location (manual); room session name; session end time; Clients: sipc (Windows, Linux); Session (Mac, Windows); presence portal

Technical detailsTechnical details

SUBSCRIBEto my location

PUBLISHpresence status

NOTIFYmyselfand others’ locations

by Jamey from HP

802.11 Signal Strength Location 802.11 Signal Strength Location TrackingTracking

Room-level accuracyUnassociated 802.11 monitoring of all channels in use Gathers signal strength measurements of each

client Clients visible from multiple monitors

Triangulation difficult due to walls Match signal strength signature of target locations Calibrate system by gathering signatures for each

locationNo client software required

But clients do have to transmit to be locatedby Jamey from HP

802.11 Location Tracking802.11 Location Tracking

Standard access pointsNo client software“Skiff” monitors

SA110 single board computer running Linux

Report signal strength, MAC address of all packets seen

by Jamey from HP

by Jamey from HP

Locating client devicesLocating client devices

ARP to correlate MAC to IP

by Jamey from HP

Locating SIP clientsLocating SIP clients

Correlate client IP addr to SIP registrar

sipc for PIC trialsipc for PIC trial

PUBLISH and XCAP support Location-switch extension for CPL Display location information Pinpoint a user on a map

map url can be in location notifications (in CIPID, or pidf-lo document)

Pinpoint a user on a mapPinpoint a user on a map

Actions to a locationActions to a location

location-switch for CPLlocation-switch for CPL

location-switch for CPLlocation-switch for CPL <?xml version="1.0"?> <cpl> <incoming> <location-switch type="civil"> <location loc=“Pacific"> <time-switch> <time dtstart="20040224T200055Z"

dtend="20040224T210055Z"> <reject status="486" reason="Busy"/> </time> </time-switch> </location> </location-switch> </incoming> </cpl>

http://www.ietf.org/internet-drafts/draft-wu-iptel-locswitch-00.txt

More location handlingMore location handling

sipc works as a LGsipc works as a LG

location daemon

PUBLISH

TCP socket on port 5622

IETF effortsIETF efforts GEOPRIV working group

DHCP Option for Civil Addresses A Presence-based GEOPRIV Location Object

Format SIMPLE working group

RPID - Rich Presence Information Data Format CIPID: Contact Information in Presence

Information Data Format SIPPING working group

Requirements for Session Initiation Protocol Location Conveyance

More workMore work

Ubiquitous computing environment Service location (SLP query) Privacy issues Emergency services

PIC Working Group PIC Working Group informationinformation

URL: http://pic.internet2.edu Mailing list:

https://mail.internet2.edu/wws/arc/wg-pic People:

Clockwise from front left: Art Gaylord (Woods Hole), Xiaotao Wu (Columbia), Joe Rork (Ford), Jamey Hicks (HP Labs), Jiri Kuthan (iptel.org), Jeremy George (Yale), Deke Kassabian (U. Penn), Ben Teitelbaum (Internet2), Steve Blair (U. Penn)

Not Pictured: Artem Dmytrenko (u. Mich), Mike Enyeart (Indiana), Iljun Kim (Internet2), Jeff King (Wave Three Software)