835685 - [GPS][SUPL] Data Connection Fail Before SUPL Start

Status: RESOLVED INVALID

(Firefox OS Graveyard :: General, defect, P1)

Description

[leo.bugzilla.gecko]

We try to test about SUPL Session.
The test result show it's do not work.
The failure analysis found that nothing response about data connection from GPS chip

Is neet to extra work?

Comment 1

[leo.bugzilla.gecko]

We need to information of setting about SUPL.

Comment 2

[Kan-Ru Chen [:kanru] (UTC+9)]

Do you mean that the gonk gps provider does not setup a SUPL session? This might be a dup of bug 813876

Comment 3

[leo.bugzilla.gecko]

We think that case is different.
We Check to the log,

01-25 00:37:39.509: D/DATA_CALL_MGR_QC_B2G(116): DeactivateDataCallByType type = supl
01-25 00:37:39.509: D/DATA_CALL_MGR_QC_B2G(116): Secondary APN type supl goes through default APN, nothing to do.

this log inclued in SetupDataCallByType, 'DataCallManager.cpp'
We think that 'UsingDefaultAPN(type)=false ' is meet the case APN_TYPE_SUPL.

Please check the log.

Thanks

Comment 4

[Shian-Yow Wu [:swu]]

According to the log, the SUPL APN uses same APN as Data APN.  It requires Data APN to be enabled, please enable 'Data connection' in Settings app.

Comment 5

[leo.bugzilla.gecko]

I check to 'Data connection' enabled aleady.
Also, APN input same in Settings -> Cellular & Data -> Data settings
                        Settings -> Cellular & Data -> A-GPS settings

but, same results
01-29 10:18:19.215: D/DATA_CALL_MGR_QC_B2G(117): SetupDataCallByType type = supl
01-29 10:18:19.215: D/DATA_CALL_MGR_QC_B2G(117): Secondary APN type supl goes through default APN, nothing to do.

anything else recommand?

Thanks

Comment 6

[Shian-Yow Wu [:swu]]

If 'Data connection' enabled and you can browse Internet, then SUPL connection should be working, because it goes through same connection.

Could you provide full RIL log?

Comment 7

[leo.bugzilla.gecko]

Sorry, we missed data connection. 
We check to '3G' indicator, but do not work Browser.

We retry to SUPL test, result is Good. Thank you.

And, We have another question.
We don't understand why seperate mode, 
                                      Data settings
                                      A-GPS settings
APN is Same...
Could you explain this?

Thanks

Comment 8

[Shian-Yow Wu [:swu]]

APN can be same or different for Data and A-GPS.

If you set different APN names, two data connection will be established.  You can check it by 'adb shell netcfg' and find the activated rmnet interfaces for data connection.

Take Chunghwa telecom for example, it offers two APNs (internet and emome) [1].  Both supports Data and SUPL.  So you can configure either name freely in the settings.

[1] The APN database is stored in gaia, you can reference it at https://github.com/mozilla-b2g/gaia/blob/master/shared/resources/apn.json#L2456

Comment 9

[Kan-Ru Chen [:kanru] (UTC+9)]

According to comment 7, resolved as invalid.