Hi Reinhard,

A new development -- while on the 5G network with an active data connection (MM 
connected and ifup on the interface) I could get the real 5G values via the AT 
command, however the TLV was still missing from the verbose output of 
—dms-get-band-capabilities.  Still, UL/DL performance was, disappointingly, 
still about what you would expect from one LTE band, but that is probably its 
own topic.

Here’s the AT command response:
at+qeng=“servingcell”
+QENG: “servingcell”, “NOCONN”
+QENG: “LTE”,”FDD”,505,01,8C62D06,182,9410,28,5,5,7025,-78,-7,-51,15,-
+QENG:”NR5G-NSA”,505,01,839,-83,154,-12

at+qeng=“servingcell”
+QENG: “servingcell”, “NOCONN”
+QENG: “LTE”,”FDD”,505,01,8C62D06,182,9410,28,5,5,7025,-81,-8,-53,14,-
+QENG:”NR5G-NSA”,505,01,839,-93,60,-12


Best,
Nick


> On 10 Jun 2020, at 3:12 am, Reinhard Speyerer <rs...@arcor.de> wrote:
> 
> On Tue, Jun 09, 2020 at 08:50:10AM +1000, Nick wrote:
>> Hi Walter,
>> 
>> I???m seeing a similar issue with my RM500Q-GL.  Can you please post the 
>> output of: qmicli -p -d /dev/cdc-wdm0 --dms-get-band-capabilities
>> 
>> Mine below for your reference.  You would note on mine, after the Extended 
>> LTE bands, where we would expect to see the 5GNR band TLV response, that it 
>> is absent. (Thanks to Sebastian for showing me that.)  However, I am 
>> currently not attached to a 5G network, nevertheless, when I attempted this 
>> test while attached to a 5G network, I had the same result.
>> 
>> 
>> Best,
>> Nick
>> 
>> 
>> When I was on 5G
>> ---------------
>> AT+QENG="Servingcell"
>> +QENG: "servingcell","NOCONN???
>> +QENG: "LTE","FDD",505,01,8B45502,349,1300,3,5,5,700B,-83,-10,-53,20,0,-150,-
>> +QENG: ???NR5G-NSA???,505,01,45,-32768,-32768,-32768 (note the negative 
>> values for signal, equivalent to 0b1000000000000000)
>> --------------
>> Responses for AT+QENG 5GNR: Access Tech, MCC, MNC, PCID, RSRP, SINR, RSRQ
>> 
> 
> Hi Nick,
> 
> same over here when using a test network in 5G NSA mode:
> 
> at+qeng="servingcell"
> +QENG: "servingcell","NOCONN"
> +QENG: "LTE","FDD",1,01,1A2D001,1,300,1,3,3,1,-87,-3,-67,23,255,-32768,52
> +QENG:"NR5G-NSA",1,01,500,-32768,-32768,-32768
> 
> OK
> 
> NASGetSignalInfo output for 5G NSA (from another test, still with the RG500Q):
> +OK NASGetSignalInfo 02040000000000140600bffaa8ffb600170400008000801802000080
> 
> My assumption is that RSRP, SINR and RSRQ above would only be defined for
> 5G SA mode as can be seen from the qmicli -v --nas-get-signal-info output here
> https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/issues/32 .
> 
> I tried to stay out of the "guessing 5G QMI TLVs" business but since we
> may never see a GobiAPI 2020 update here it goes anyway:
> TLV 0x17 = RSRP and SINR (scaled by 10 like for LTE(?)), TLV 0x18 = RSRQ.
> 
> A TLV that looks a little bit easier to guess due to its unusual size:
> NASGetSystemInfo TLV 0x50 = 5GS TAC from TS 24.501 section 9.11.3.8.
> 
> Regards,
> Reinhard

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