Bluetooth Connection Failure while using CLbsPositionRequestor API!!!

I am working at the CENS laboratory at UCLA, and we have developed an appli=
cation that continuously polls a bluetooth gps device for location informat=
ion at given intervals. We have noticed that the bluetooth connection will=
fail and the gps unit unpairs while the application is still running. The=
time between the beginning of collection until failure seems to be arbitra=
ry.

To fix the problem we have tried updating the firmware as mention here, [ht=
tp://wiki.forum.nokia.com/index.php/KIS000562_-_Bluetooth_serial_connection=
_problems_in_S60_Nseries_devices]

We also though about the watchdog solution posted here, [http://discussion.=
forum.nokia.com/forum/showthread.php?t=3D76928]
but our connection does not time out, instead the location api returns the =
last acquired location (we know this from comparison of acquisition timesta=
mps).

We have also attempted to destroy the CLbsPositionRequestor and recreate it=
when we see stale data returned, but this does not appear to solve the pro=
blem. The only way to reconnect the gps device appears to be turn the phone=
off and then back on.

Any advice would be greatly appreciated.=20

Thank you,
Steve

Edited by: soakley on 13-Jan-2008 16:03

Hi Steve

Where is CLbsPositionRequestor documented? I don't think its a Symbian API.

Without knowing the cause of the problem its hard to offer useful advice. T=
wo options occur to me:
1. Try L2CAP protocol instead of RFCOMM. If the problem is in the higher le=
vel RFCOMM layer you may be able to bypass it.
2. Purchase some API partnering support with Forum Nokia to get them to res=
olve the issue - at very least you could get them to verify that this is a =
defect and the cause - which is the first part of resolving the issue.

Regards
Hamish Willee
Symbian Ltd.