I know I can send AT+CSQ command to retrieve RSSI and BER, but I think it is related to 2G connection only. How can I retrieve the 3G (UMTS) signal quality level, when the 3G modem is connected? Is another AT command available?
AT+CSQ for 3G signal quality level?
Started by ●July 25, 2014
Reply by ●July 25, 20142014-07-25
On 2014-07-25, pozzugno <pozzugno@gmail.com> wrote:> I know I can send AT+CSQ command to retrieve RSSI and BER, but I think > it is related to 2G connection only. > > How can I retrieve the 3G (UMTS) signal quality level, when the 3G modem > is connected? Is another AT command available?What I do in a monitor I wrote is to listen to the PCUI messages (which includes RSSI changes) and parse those. Does your device have a PCUI interface port ? Simon. -- Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP Microsoft: Bringing you 1980s technology to a 21st century world
Reply by ●July 25, 20142014-07-25
pozzugno <pozzugno@gmail.com> wrote:> I know I can send AT+CSQ command to retrieve RSSI and BER, but I think > it is related to 2G connection only.It works on 3G as well. I've used it on a 3G-only network, where the SIM flips to 'roaming' on 2G if the signal isn't enough. The network names and RSSI numbers are quite different between the 2G and 3G networks, so it's easy to tell which signal is being measured. That's on ZTE and Ericsson hardware anyway, YMMV. Theo
