HUAWEI ME909u-523 LTE LGA Module
Application Guide
Initialization Application Scenarios
Issue 04 (2014-12-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
17
2.3 Network Service Operations
2.3.1
Reference Process
Command
Description
AT+CFUN?
Query a module's current mode.
1
indicates
online mode.
+CFUN: 1
OK
AT+CPIN?
Query whether a module's SIM card is
password protected.
READY
indicates that
the SIM card is ready.
+CPIN: READY
OK
AT^HCSQ?
Query the network signal quality.
^HCSQ: "WCDMA",30,30,58
OK
AT+COPS?
Return the current network selection mode,
information about the operator with which
the module is registered, and the wireless
access standard.
+COPS: "Network status
information"
OK
For example:
+COPS: 1,0, "China Mobile
Com"
AT+COPS=0
Automatically search for networks.
OK
AT+CREG?
Query the state of the currently registered
network.
+CREG: 0,1
OK
AT+CREG=1
Set the
+CREG
unsolicited indication.
OK