Closed Bug 714355 Opened 12 years ago Closed 11 years ago

Consider using NTP or SNTP on devices without NITZ

Categories

(Core :: DOM: Device Interfaces, defect)

ARM
Gonk (Firefox OS)
defect
Not set
normal

Tracking

()

RESOLVED DUPLICATE of bug 874771
blocking-basecamp -

People

(Reporter: cjones, Unassigned)

References

Details

This is low priority, and would only be needed for future b2g tablets or other such devices without NITZ support.  There's a small outside chance it could be useful for phones on wifi.
A-GPS will need some high accuracy time sources so I'm going to add SNTP support in the geolocation backend first.
(In reply to Kan-Ru Chen [:kanru] from comment #1)
> A-GPS will need some high accuracy time sources so I'm going to add SNTP
> support in the geolocation backend first.

Is it possible that a BS provides A-GPS without NITZ?
(In reply to Thinker Li [:sinker] from comment #2)
> (In reply to Kan-Ru Chen [:kanru] from comment #1)
> > A-GPS will need some high accuracy time sources so I'm going to add SNTP
> > support in the geolocation backend first.
> 
> Is it possible that a BS provides A-GPS without NITZ?

I saw on Wikipedia that 'the timing information via NITZ is only required to support "accuracy of the time information is in the order of minutes."'

Anyway, NTP is only required to speed up the GPS fixes so this will be done after A-GPS.
What's the status here?  Are we doing this for Basecamp?
Currently, we only support RIL NITZ to automatically update the system time, which needs a SIM card installed advancedly. However, Bug 813129 reports users would have bad experience to start up their phone when the SIM card is not yet installed. I'm not sure if we really need to implement this for now, because a work-around might be providing a convenient setting way to let users set their system time at the first run.
Blocks: 813129
Let's ask bb+ again. Please see comment #6 for more details.
blocking-basecamp: --- → ?
I would say bb-. Let's improve it in later versions, unless Chris Lee wants this to be included in v1.
blocking-basecamp: ? → -
We should also consider that there are operators that do not support NITZ. For those carriers automatic configuration of the date is not going to work even with a SIM inserted. I wouldn't say it's a blocker if we provide a usable way to change the date of the device. (i.e. fix bug 813138)
(In reply to khu from comment #8)
> I would say bb-. Let's improve it in later versions, unless Chris Lee wants
> this to be included in v1.

This is a low priority for v1.  Thanks.
Forward-duping to an assigned bug.
Status: NEW → RESOLVED
Closed: 11 years ago
Resolution: --- → DUPLICATE
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