HUAWEI MG323 GSM M2M Module
AT Command Interface Specification Commands for Network Services
Issue 02 (2010-11-23) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd. 81
8.4.1 Checking the Parameter Range Supported by This Command
Test
command
AT+CSQ=?
Function Returns the parameter range supported by this command.
Response z In case of successful execution:
<CR><LF>+CSQ: (list of supported <rssi>s),(list of supported
<ber>s)<CR><LF>
<CR><LF>OK<CR><LF>
z In case of an error during command execution:
<CR><LF>ERROR<CR><LF>
z In case of an error related to the MT during command execution:
<CR><LF>+CME ERROR: <err><CR><LF>
Parameter description
<rssi>: receive signal strength indicator
z 0: -113 dBm
z 1: -111 dBm
z 2...30: -109...-53 dBm
z 31: 51 dBm
z 99: unknown or immeasurable
<ber>: bit error rate in percentage. The value of ber can be queried only during the
call processing. Otherwise, only the value 0 or 99 is returned. Currently, only the
value 99 is returned.
z 0–7: correspond to the values of RXQUAL in the GSM 05.08 section8.2.4.
z 99: unknown or immeasurable