Cinterion
®
EHS6 AT Command Set
8.6 AT+CSQ
EHS6_ATC_V03.001
15/12/3
Confidential / Released
Page 174 of 513
8.6
AT+CSQ Signal quality
The
execute command indicates the received signal strength
and the channel bit error rate
Syntax
Parameter Description
0
-113 dBm or less
1
-111 dBm
2..30
-109... -53 dBm
31
-51 dBm or greater
99
not known or not detectable
According to 3GPP TS 27.007
value is not applicable to 3G networks. It is therefore recom-
mended to use also
which delivers additional information, in particular the values RSCP, EC/n0,
SQual and SRxLev RX level. Nevertheless, please consider that connection quality in 3G networks is depending
on further factors. For example, despite good RSCP values for signal quality, data throughput may vary depend-
ing on the number of subscribers sharing the same cell.
To check the bit error rate there must be a dedicated channel opened to obtain realistic values. If no dedicated
channel is opened, there is no BER to be determined. In this case the indicated value may be 0 or 99, depending
on the SIM card.
0..7
as RXQUAL values in the table in 3GPP TS 45.008
section 8.2.4.
99
not known or not detectable
Note
• The results of
are valid only after the ME has successfully finished network registration. Otherwise,
the commands returns only +CSQ: 99,99.
Test Command
AT+CSQ=?
Response(s)
+CSQ:
(list of supported
s)
OK
Exec Command
AT+CSQ
Response(s)
+CSQ:
OK
PIN
Last
Reference(s)
-
+
-
3GPP TS 27.007
<rssi>
(num)
<ber>
(num)