Band selection issue

Band selection issue

[Li, Zhigang]

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Hi,
With HuaWei Em77W and Em1152 modems, I only can set band once in tow modems; it always return the call back error, with debugging, it seems was modems self issue.
Does it known issue?
Could you list which Hua wei modem are you using for debugging?
Thanks
Zhigang

Re: Band selection issue

[Lucas De Marchi]

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Hi Zhigang

On Fri, Jan 14, 2011 at 4:30 AM, Li, Zhigang <zhigang.li@intel.com> wrote:
> Hi,
> With HuaWei Em77W and Em1152 modems, I only can set band once in tow modems; it always return the call back error, with debugging, it seems was modems self issue.
> Does it known issue?

No, I've never experienced this

> Could you list which Hua wei modem are you using for debugging?

I used a Huawei E220 to develop the frequency band selection feature.

Could you enable debug and paste the output somewhere?



regards,
Lucas De Marchi

RE: Band selection issue

[Li, Zhigang]

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Hi Lucas

The issue was unstable modem. I tried the 1552 modem again, now it works fine with 2G/3G Band, as the limitation of PCS network, did not test the PCS band.

With Emw770, it doesn't work yet, should be modem self issue.

>Could you enable debug and paste the output somewhere?
.......
.......
ofonod[28247]: src/gprs.c:ofono_gprs_status_notify() /huawei2 status 2
ofonod[28247]: PCUI: < \r\n^BOOT:20294258,0,0,0,29\r\n
ofonod[28247]: PCUI: > AT^SYSCFG=16,3,2a0380,2,4\r
ofonod[28247]: PCUI: < \r\nERROR\r\n
ofonod[28247]: src/radio-settings.c:radio_band_set_callback() Error setting radio frequency band
ofonod[28247]: PCUI: > AT^SYSCFG=16,3,2a0380,2,4\r
ofonod[28247]: PCUI: < \r\nERROR\r\n
ofonod[28247]: src/radio-settings.c:radio_band_set_callback() Error setting radio frequency band
ofonod[28247]: PCUI: > AT^SYSCFG=16,3,2a0380,2,4\r
ofonod[28247]: PCUI: < \r\nERROR\r\n
ofonod[28247]: src/radio-settings.c:radio_band_set_callback() Error setting radio frequency band
^[[Aofonod[28247]: PCUI: < \r\n^BOOT:20294258,0,0,0,29\r\n
ofonod[28247]: PCUI: > AT^SYSCFG=16,3,20100,2,4\r
ofonod[28247]: PCUI: < \r\nERROR\r\n
ofonod[28247]: src/radio-settings.c:radio_band_set_callback() Error setting radio frequency band
ofonod[28247]: PCUI: < \r\n^BOOT:20294258,0,0,0,29\r\n
ofonod[28247]: PCUI: > AT^SYSCFG=16,3,20100,2,4\r
ofonod[28247]: PCUI: < \r\nERROR\r\n
ofonod[28247]: src/radio-settings.c:radio_band_set_callback() Error setting radio frequency band

Thanks
Zhigang

Re: Band selection issue

[Lucas De Marchi]

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Hi Zhigang

On Mon, Jan 17, 2011 at 6:31 AM, Li, Zhigang <zhigang.li@intel.com> wrote:
> Hi Lucas
>
> The issue was unstable modem. I tried the 1552 modem again, now it works fine with 2G/3G Band, as the limitation of PCS network, did not test the PCS band.
>
> With Emw770, it doesn't work yet, should be modem self issue.
>
>>Could you enable debug and paste the output somewhere?
> .......
> .......
> ofonod[28247]: src/gprs.c:ofono_gprs_status_notify() /huawei2 status 2
> ofonod[28247]: PCUI: < \r\n^BOOT:20294258,0,0,0,29\r\n
> ofonod[28247]: PCUI: > AT^SYSCFG=16,3,2a0380,2,4\r

What frequency are you trying to set? Could you verify if it works by
setting both GSM and UMTS frequencies to 'any' ?
It might be a problem that this modem does not accept several
frequencies together (currently we keep the GSM and UMTS values by
making an OR and passing to modem)


regards,
Lucas De Marchi

RE: Band selection issue

[Li, Zhigang]

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Hi Lucas,

>What frequency are you trying to set? Could you verify if it works by
>setting both GSM and UMTS frequencies to 'any' ?

I tried all value and got same result: call back error. 

>It might be a problem that this modem does not accept several
>frequencies together (currently we keep the GSM and UMTS values by
>making an OR and passing to modem)
Does you have some trial version with set the Band alone for GMS and UMTS; I can verify it with this modem?

Thanks
Zhigang

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