Quectel GSM/GPRS Module Series - Page 12

GSM/GPRS Module Series
GSM QuecCell AT Commands Manual
GSM_QuecCell_AT_Commands_Manual Confidential / Released 11 / 27
Parameter
1. This command is available only when the parameter <mode> of the command
“AT+QENG=<mode>[,<dump>]” is 1 or 2.
2. The parameter <TA> will be changed when SMS CALL or GPRS is transmitted.
AT+QCHINFO Get Channel Information
Test Command
AT+QCHINFO=?
Response
OK
Read Command
AT+QCHINFO?
Response
+QCHINFO:
<rr_state>,<arfcn>,<dbm>,<ch_type>,<ta>,<rxq_sub>,<rx
q_full>
OK
Write Command
AT+QCHINFO=<0-1>
Response
Set the module whether automatic report QCHINFO
OK
<rr_state> 0 Null state
1 Inactive state
2 Cell select state
3 Idle state
4 Access state
5 Packet transfer state
6 Dedicated state
7 Cell reselect state
<arfcn> Frequency
<dbm> Receiving level in dBm
<ch_type> Channel type
<ta> Timing Advance, the value 255 is unavailable
<rxq_sub> Receiving quality (sub), range is 0-7, the same as the parameter of QENG
<rxq_full> Receiving quality (full), range is 0-7, the same as the parameter of QENG
<0-1> 0 Automatic report
1 Non-automatic report
NOTES
Quectel
Confidential