Re: Bug/Oversight in gatchat/gatresult.c with negative numbers
On 03/08/2021 15:28, Denis Kenzior wrote: Hi Alex, I have been chasing this up with Quectel and they tell me this the correct implementation. "QCOPS and QENG command show the RSSI、RSRP and SINR value of the network, this is in accordance with the 3GPP TS regulations, so it is normal for negative numbers to be displayed.image" So the image shows the value for '0' if -140 dbm ... '95' if dbm is -46 to -45 etc. (what is actually sent over AT commands) is never negative. Isn't the image supporting my earlier assertion: 'AT commands do not have a concept of negative numbers'? oFono exposes the value from 3GPP: "byte ReferenceSignalReceivedPower [optional, lte] Contains the Reference Signal Received Power. Valid range of values is 0-97. Refer to in 27.007, Section 8.69 for more details. " Regards, -Denis Thanks... will go back to Quectel... (!) Cheers, Alex ___ ofono mailing list -- ofono@ofono.org To unsubscribe send an email to ofono-le...@ofono.org
Re: Bug/Oversight in gatchat/gatresult.c with negative numbers
Hi Alex, I have been chasing this up with Quectel and they tell me this the correct implementation. "QCOPS and QENG command show the RSSI、RSRP and SINR value of the network, this is in accordance with the 3GPP TS regulations, so it is normal for negative numbers to be displayed.image" So the image shows the value for '0' if -140 dbm ... '95' if dbm is -46 to -45 etc. (what is actually sent over AT commands) is never negative. Isn't the image supporting my earlier assertion: 'AT commands do not have a concept of negative numbers'? oFono exposes the value from 3GPP: "byte ReferenceSignalReceivedPower [optional, lte] Contains the Reference Signal Received Power. Valid range of values is 0-97. Refer to in 27.007, Section 8.69 for more details. " Regards, -Denis ___ ofono mailing list -- ofono@ofono.org To unsubscribe send an email to ofono-le...@ofono.org
Re: Bug/Oversight in gatchat/gatresult.c with negative numbers
On 27/07/2021 15:38, Denis Kenzior wrote: Hi Alex, On 7/20/21 11:11 AM, Alex J Lennon wrote: Hi all, I'm doing a bit of work with Ofono again, extending support for a Quectel EG91 - handling additional cell strength information which seems necessary for LTE. I'm using Quectel's AT+QCOPS which is returning some negative signal strengths and after some investigation I've spotted that gatresult::g_at_result_iter_next_number() doesn't handle negative numbers. AT commands do not have a concept of negative numbers. v.250 Section 5.3.1: may be a string of one or more characters from "0" through "9" representing a decimal integer value. Commands that expect a are noted in the description of the command (see clause 6). I don't recall any other vendor using negative values in AT commands. If you want to add a negative number parser to GAtChat, then please make it a separate method, so that it is very clear that a vendor 'extension' is being worked around. Regards, -Denis Hi Denis, I have been chasing this up with Quectel and they tell me this the correct implementation. "QCOPS and QENG command show the RSSI、RSRP and SINR value of the network, this is in accordance with the 3GPP TS regulations, so it is normal for negative numbers to be displayed.image" This is quite interesting as aside from the parsing, Ofono seems to rely on negative numbers being errors (e.g. src/netmon.c) What are your thoughts? This being correct, one would have thought other modem manufacturers would report in the same manner. Cheers, Alex ___ ofono mailing list -- ofono@ofono.org To unsubscribe send an email to ofono-le...@ofono.org
Re: Application of using the best VPN for Mac
In this era of rapid digital advancement, the world of academic learning has really come a long way with a myriad of key contributions to talk about. Online study help gets a special mention here. Students wondering, “Who will write my essay?”, are no more required to wait for long hours to meet their professors personally. Rather, they can simply solve such intricacies in a jiffy. https://myassignmenthelp.com/au/ ___ ofono mailing list -- ofono@ofono.org To unsubscribe send an email to ofono-le...@ofono.org
