Can query signal quality in data mode?

Legacy Legacy AirPrime modules
1

Hi

In Wavecom module, can it query the signal quality in data mode? I suggest the customer should send +++ to quit data mode and enter into AT mode, then send at+csq to query it. but the customer think it has some problems when transmisting gprs data. the customer want to query the sinal quality offten.

I also suggest that use the second serial port, but the customer H/W is designed compelte.

I suggest that they use Mux protocol, but I think it is difficulty for they to use it.

besides above, is it another mothod to complete the function as the title?

2

There’s a couple of strategies you could adopt:

  1. Implement your own AT commands to make the connections and send the data - so the modem always appears to be in “command mode”.
3
  1. Generate and capture the CSQs within the firmware…
4

…then spit the results out on the serial port surrounded by control codes…I do not know whether this would actually work.

5

What does this mean? If I use the specificated AT command to connect gprs, and send the data, why it is in “command mode”? and then can receive AT command? I can’t understand.

I think this is a good ideal, some other modules have this function, but I think Wavecom modules don’t implement it. do you konw how to implement it in Wavecom module? Thx