HUAWEI ME936 LTE M.2 Module
Application Guide
Issue 01
Date 2014-05-28
Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.
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, , and are trademarks or registered trademarks of Huawei Technologies Co., Ltd.
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Other trademarks, product, service and company names mentioned may be the property of their respective
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Notice
Some features of the product and its accessories described herein rely on the software installed, capacities
and settings of local network, and therefore may not be activated or may be limited by local network
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Thus, the descriptions herein may not exactly match the product or its accessories which you purchase.
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HUAWEI ME936 LTE M.2 Module
Application Guide About This Document
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About This Document
Revision History
Document Version
Date Chapter Description
01 2014-05-28 Creation
HUAWEI ME936 LTE M.2 Module
Application Guide Contents
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Contents
1 Introduction .............................................................................................................................. 8
1.1 Overview ..................................................................................................................................... 8
1.2 Conventions and Definitions ........................................................................................................ 8
1.2.1 Conventions ....................................................................................................................... 8
1.2.2 Definitions........................................................................................................................... 8
1.2.3 Legends ............................................................................................................................. 9
1.3 Basic AT Command Processing Principles ..................................................................................10
1.3.1 Ports ..................................................................................................................................10
1.3.2 AT Command Processing Mechanism ................................................................................10
1.3.3 Recommended Timeout Mechanism for AT Commands Processed by a Host ..................... 11
2 Basic Application Scenarios .................................................................................................. 13
2.1 Querying the IMEI ......................................................................................................................13
2.1.1 Reference Process ............................................................................................................13
2.1.2 Troubleshooting .................................................................................................................14
2.2 Querying Additional Information ..................................................................................................14
2.2.1 Reference Process ............................................................................................................14
2.2.2 Troubleshooting .................................................................................................................15
3 Airplane Mode Application Scenarios ................................................................................ 16
3.1 Overview ....................................................................................................................................16
3.2 Setting the Flight Mode ..............................................................................................................16
3.2.1 Reference Process ............................................................................................................16
3.2.2 Troubleshooting .................................................................................................................17
4 BodySAR Application Scenarios ......................................................................................... 18
4.1 Overview ....................................................................................................................................18
4.2 Enabling/Disabling BodySAR .....................................................................................................18
4.2.1 Reference Process ............................................................................................................18
4.2.2 Troubleshooting .................................................................................................................19
4.3 Adjusting the WCDMA Transmitted Power Using the BodySAR Feature .....................................19
4.3.1 Reference Process ............................................................................................................19
4.3.2 Troubleshooting .................................................................................................................20
4.4 Adjusting the GSM Transmitted Power Using the BodySAR Feature ...........................................20
4.4.1 Reference Process ............................................................................................................20
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4.4.2 Troubleshooting .................................................................................................................22
4.5 Adjusting the LTE Transmitted Power Using the BodySAR Feature .............................................22
4.5.1 Reference Process ............................................................................................................22
4.5.2 Troubleshooting .................................................................................................................23
4.6 Usage Description Of BodySAR Feature ....................................................................................23
4.6.1 Reference Description .......................................................................................................23
4.6.2 Troubleshooting .................................................................................................................24
4.7 Setting the BodySAR Type .........................................................................................................24
4.7.1 Reference Process ............................................................................................................24
4.7.2 Troubleshooting .................................................................................................................24
5 Network Searching and Registration Application Scenarios........................................... 25
5.1 Searching and Registering Network............................................................................................25
5.1.1 Reference Process ............................................................................................................25
5.1.2 Troubleshooting .................................................................................................................27
6 SMS Application Scenarios .................................................................................................. 28
6.1 Overview ....................................................................................................................................28
6.2 Initializing SMS ..........................................................................................................................30
6.2.1 Reference Process ............................................................................................................30
6.2.2 Troubleshooting .................................................................................................................34
6.3 Sending Short Messages ...........................................................................................................34
6.3.1 Reference Process ............................................................................................................34
6.3.2 Troubleshooting .................................................................................................................36
6.4 Reading Short Messages ...........................................................................................................37
6.4.1 Reference Process ............................................................................................................37
6.4.2 Troubleshooting .................................................................................................................39
6.5 Deleting Short Messages ...........................................................................................................39
6.5.1 Reference Process ............................................................................................................39
6.5.2 Troubleshooting .................................................................................................................41
7 Phonebook Application Scenarios ....................................................................................... 42
7.1 Overview ....................................................................................................................................42
7.2 Initializing the Phonebook ...........................................................................................................42
7.2.1 Reference Process ............................................................................................................42
7.2.2 Troubleshooting .................................................................................................................43
7.3 Reading Phonebook Entries .......................................................................................................44
7.3.1 Reference Process ............................................................................................................44
7.3.2 Troubleshooting .................................................................................................................45
7.4 Writing Phonebook Entries .........................................................................................................46
7.4.1 Reference Process ............................................................................................................46
7.4.2 Troubleshooting .................................................................................................................47
8 Data Service Application Scenarios ..................................................................................... 49
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8.1 Overview ....................................................................................................................................49
8.2 Initializing Data Service Settings.................................................................................................50
8.2.1 Reference Process ............................................................................................................50
8.2.2 Troubleshooting .................................................................................................................50
8.3 Attaching/Detaching PS ..............................................................................................................50
8.3.1 Reference Process ............................................................................................................50
8.3.2 Troubleshooting .................................................................................................................51
8.4 Defining PDP Contexts ...............................................................................................................51
8.4.1 Reference Process ............................................................................................................51
8.4.2 Troubleshooting .................................................................................................................52
8.5 Activate PDP Contexts and Enter Data Mode .............................................................................52
8.5.1 Reference Process ............................................................................................................52
8.5.2 Troubleshooting .................................................................................................................53
9 Security Settings Application Scenarios ............................................................................. 54
9.1 Changing the SIM PIN ................................................................................................................54
9.1.1 Reference Process ............................................................................................................54
9.1.2 Troubleshooting .................................................................................................................55
9.2 Changing the SIM Card Configuration ........................................................................................56
9.2.1 Reference Process ............................................................................................................56
9.2.2 Troubleshooting .................................................................................................................57
10 SIM Card Application Scenarios ........................................................................................ 58
10.1 SIM Card Access ......................................................................................................................58
10.1.1 Reference Process ..........................................................................................................58
10.1.2 Troubleshooting ...............................................................................................................61
11 Module Powering Off and Resetting Application Scenarios ......................................... 62
11.1 Restarting the ME .....................................................................................................................62
11.1.1 Reference Process...........................................................................................................62
11.1.2 Troubleshooting ...............................................................................................................62
11.2 Powering Off the ME.................................................................................................................62
11.2.1 Reference Process...........................................................................................................62
11.2.2 Troubleshooting ...............................................................................................................63
12 DPTF Application Scenarios ............................................................................................... 64
12.1 Setting Thermal Sensor with the Threshold...............................................................................64
12.1.1 Reference Process ..........................................................................................................64
12.1.2 Troubleshooting ...............................................................................................................64
12.2 Querying the Current Temperature of a Thermal Sensor ...........................................................64
12.2.1 Reference Process ..........................................................................................................64
12.2.2 Troubleshooting ...............................................................................................................65
13 ACT Application Scenarios................................................................................................. 66
13.1 Overview ..................................................................................................................................66
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13.2 Adaptive Clocking .....................................................................................................................66
13.2.1 Reference Process ..........................................................................................................66
13.2.2 Troubleshooting ...............................................................................................................67
14 GPS Application Scenarios ................................................................................................. 68
14.1 Introduction to GPS ..................................................................................................................68
14.1.1 GPS Positioning Methods ................................................................................................68
14.1.2 GPS Ports .......................................................................................................................70
14.2 Standalone Positioning .............................................................................................................71
14.3 MSB Positioning Using the User Plane Protocol .......................................................................72
14.4 MSA Positioning Using the User Plane Protocol .......................................................................73
14.5 GNSS Positioning ....................................................................................................................73
15 Appendix ............................................................................................................................... 75
15.1 Relative Documents .................................................................................................................75
15.2 Acronyms and Abbreviations ....................................................................................................75
HUAWEI ME936 LTE M.2 Module
Application Guide Introduction
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1 Introduction
1.1 Overview
This document is intended to provide references for customers to choose appropriate command sequences to start using the ME936 module in a faster manner. This document also contains examples and relevant description.
This document will be updated based on customers' requirements.
This document is only applicable for Windows 7. For Windows 8 and Windows 8.1, please refer to the MBIM protocol.
1.2 Conventions and Definitions
1.2.1 Conventions
Convention Description
<…> Value range of AT command parameters
XXXX Personal identification number (PIN), Personal Unlock Key (PUK), or password
1.2.2 Definitions
Term Definition
Connected Indicates that a link has been set up between two modules or a module and a terminal.
Registered Indicates that the module is registered with a mobile network.
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Application Guide Introduction
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Term Definition
Module HUAWEI LTE module
1.2.3 Legends
Legend Description
Start.
Action: includes user input, reports from the module, unsolicited indications from the module, and communication between the module and the host.
Branch: determines the next step.
Comment: clarifies the scenario.
End.
Dataflow: indicates the next step to which the service goes or the indication reported from an action.
Application Mobile equipment
GSM networkMobile Network
Comment
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1.3 Basic AT Command Processing Principles
1.3.1 Ports
The ME936 provides three ports to interact with its host:
Network Card port: simulated using USB, for establishing data connection.
Port name: HUAWEI Mobile Connect - Network Card
PCUI port: simulated using USB, for AT command interaction only.
Port name: HUAWEI Mobile Connect - PCUI Interface
GPS port: simulated using USB, for reporting NMEA data.
Port name: HUAWEI Mobile Connect - GPS Interface
The ME936 also provides a port for debugging:
DIAG port: simulated using USB, for DIAG (diagnostic) command interaction (mainly used to debug modules at present).
Port name: HUAWEI Mobile Connect - Application Interface
A host controls a module using AT commands. If AT commands are unavailable, a module can be deemed as unavailable.
1.3.2 AT Command Processing Mechanism
A module processes AT commands from the ports (MODEM, PCUI, and GPS) in series. The AT commands can parallel processing. It means that an AT command can be processed when the previous AT command processing hasn't been completed.
The processing of an AT command starts when the AT command is entered from the TE, and ends when the UE (the module) returns all the results in response the command.
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Application Guide Introduction
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Figure 1-1 AT command processing sequence diagram
TE UE
AT command 1
AT command 2
Return results of AT command 1
AT command 3
Process AT
command 2
Process AT
command 1
Process AT
command 3
Return results of AT command 3
Return results of AT command 2
1.3.3 Recommended Timeout Mechanism for AT Commands Processed by a Host
A module processes AT commands in series. Do not send another AT command before the result for the current command is returned or the current command times out (except when the current command is an interruptible AT command). The following table lists AT command timeout durations (starting from the time when an AT command arrives at a port).
Table 1-1 AT command timeout duration
AT Command Timeout Duration
General AT commands 10s
AT+CMGS (used to send PDU messages) 60s
AT+COPS=? (used to search for networks) 180s
After an AT command times out, it is recommended that the host check whether the module is functioning normally. The following procedure is provided for your reference:
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Application Guide Introduction
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1. The host sends the AT command to the module.
2. If the module returns failure information, go to step 5. Otherwise, go to step 3.
3. If the module returns success information, the module is functioning normally.
4. If the host times out (the host waits for a response for over 30 seconds) three times when waiting for the response from the module, go to step 5. Otherwise, go to step 1.
5. The host deems that the current module does not exist or is unavailable. Close the port, stop sending all AT commands, exit the procedure to determine whether the module is normal, and re-search for modules.
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Application Guide Basic Application Scenarios
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2 Basic Application Scenarios
2.1 Querying the IMEI
2.1.1 Reference Process
Command Description
AT+GSN/AT+CGSN Queries the IMEI.
IMEI
OK
For example: 350050500005492
Figure 2-1 Querying the IMEI
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2.1.2 Troubleshooting
Scenario Possible Error Information
Solution
AT+GSN/AT+CGSN +CME ERROR: memory failure
This error occurs when a module's IMEI is not specified. This problem is solved after the IMEI is written into the module.
2.2 Querying Additional Information
2.2.1 Reference Process
Command Description
ATI Queries the product information.
Product information
OK
For example:
Manufacturer: Huawei Technologies Co., Ltd.
Model: ME936
Revision: 11.350.16.00.00
IMEI: 350050500005492
+GCAP: +CGSM
AT+GMR/AT+CGMR Queries software version.
Software version
OK
Software version. e.g. 11.350.16.00.00
AT+GMI/AT+CGMI Queries manufacturer information.
Manufacturer identification
OK
Huawei Technologies Co., Ltd.
AT+GMM/AT+CGMM Queries model name.
Model identification
OK
ME936
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2.2.2 Troubleshooting
None
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Application Guide Airplane Mode Application Scenarios
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3 Airplane Mode Application Scenarios
3.1 Overview
Modules are usually embedded into equipments such as personal computers. The airplane mode provided by the modules can be enabled or disabled as required. When the equipment into which the module is embedded is in airplane mode, the radio frequency (RF) of the module is disabled, and other functions of the equipment are still available.
3.2 Setting the Flight Mode
3.2.1 Reference Process
Command Description
AT^RFSWITCH=1 Sets the software-controlled RF switch to on.
OK
AT^RFSWITCH? Queries the states of the software and hardware controlled RF switches.
^RFSWITCH: 1,1
OK
Indicates the software switch is on, and the hardware switch is on.
AT^RFSWITCH=0: sets the software-controlled RF switch to off.
AT^RFSWITCH=1: sets the software-controlled RF switch to on.
The value set by AT^RFSWITCH command is saved upon power-off. So the settings will be used as the initial settings next time the module is powered on.
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Application Guide Airplane Mode Application Scenarios
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The radio state of WWAN can be controlled by the software-controlled and hardware-controlled RF switches. To check the states of the software-controlled and hardware-controlled RF switches, run AT^RFSWITCH?.
The radio state of WWAN is controlled in the following manner:
The radio of the module will be disabled when either the software-controlled or hardware-controlled RF switch is off.
The radio of the module will be enabled only when both the software-controlled and hardware-controlled RF switches are on.
3.2.2 Troubleshooting
None
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Application Guide BodySAR Application Scenarios
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4 BodySAR Application Scenarios
4.1 Overview
Specific absorption rate (SAR) is a measure of the rate at which energy is absorbed by the body when exposed to an RF electromagnetic field. It is commonly used to measure power absorbed from mobile phones. The greater the SAR value, the greater the radiation effect on humans.
For user equipment (UE) such as modules, their SAR value increases as their transmitted power increases.
At present, most vendors' tablets have passed SAR tests. Generally, these products have embedded proximity sensors. When the sensors detect that a human is in the proximity of or in contact with the UE, they will notify the UE so that the UE will reduce the transmitted power. When the human is no longer in the proximity of or in contact with the UE, the sensors also notify the UE so that the UE will restore the transmitted power.
4.2 Enabling/Disabling BodySAR
4.2.1 Reference Process
Command Description
AT^BODYSARON=1 Enables the BodySAR feature.
OK
AT^BODYSARON=0 Disables the BodySAR feature.
OK
If the BodySAR feature is enabled, the maximum transmitted power can be adjusted. If the BodySAR feature is disabled, the system's default maximum transmitted power is used.
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Application Guide BodySAR Application Scenarios
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4.2.2 Troubleshooting
Scenario Possible Error Information
Solution
AT^BODYSARON=0
OK
AT^BODYSARON?
^BODYSARON: 1
OK
It means HW pin enabled BodySAR function.
4.3 Adjusting the WCDMA Transmitted Power Using the BodySAR Feature
4.3.1 Reference Process
Command Description
AT^BODYSARWCDMA=20,00000001,18,0000009a
Sets the maximum WCDMA transmitted power threshold. Indicates that set the maximum WCDMA I Tx power limit to 20 and the maximum WCDMA II, WCDMA IV, WCDMA V and WCDMA VIII Tx power limit to 18.
OK
The WCDMA transmitted power is controlled by setting the maximum transmitted power threshold. Affected by PDM and other factors, the test result may have an error of ±2 dB.
The command and parameters of AT^BODYSARWCDMA depend on the product.
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Application Guide BodySAR Application Scenarios
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Figure 4-1 Adjusting the WCDMA transmitted power
4.3.2 Troubleshooting
None
4.4 Adjusting the GSM Transmitted Power Using the BodySAR Feature
4.4.1 Reference Process
Command Description
AT^BODYSARGSM=28,00000001,25,00000004
Sets the maximum GSM transmitted power thresholds. Indicates that set the maximum GSM 850 GPRS Tx power limit to 28 and the maximum GSM 1800 GPRS Tx power limit to 25.
OK
The AT^BODYSARGSM set command sets the maximum Tx power limit of GSM,
GPRS and EGPRS for each band in single time-slot. When the module changes into
User inputs
parameters.
Save the parameters.
Is the BodySAR
fearure enabled?
Adjust the maximum WCDMA
transmitted power to be less than the
specified value.
End
N
Y
Adjust the WCDMA transmitted power
using the BodySAR feature
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Application Guide BodySAR Application Scenarios
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multi-slot configuration, the maximum Tx power limit of each time-slot will be reduced. The power reduction in multi-slot configuration is as follow:
Number of timeslots in uplink assignment
Reduction of maximum Tx power (dB)
1 0
2 3
3 5
4 6
5 7
6 8
7 8.5
8 9
The transmitted power for each band of GSM GPRS and EGPRS (GSM 850, GSM 900, GSM 1800, and GSM 1900) is controlled by setting the maximum transmitted power thresholds. Affected by PDM and other factors, the test result may have an error of ±2 dB.
The command and parameters of AT^BODYSARGSM depend on the product.
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Application Guide BodySAR Application Scenarios
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Figure 4-2 Adjust the GSM transmitted power
4.4.2 Troubleshooting
None
4.5 Adjusting the LTE Transmitted Power Using the BodySAR Feature
4.5.1 Reference Process
Command Description
AT^BODYSARLTE=20 Sets the maximum LTE transmitted power threshold. Indicates that set the maximum LTE Tx power limit of bands supported by firmware to 20.
OK
The LTE transmitted power is controlled by setting the maximum transmitted power threshold. Affected by PDM and other factors, the test result may have an error of ±2 dB.
User inputs
parameters.
Save the parameters.
Is the BodySAR
fearure enabled?
Adjust the maximum GSM
transmitted power to be less than the
specified value.
End
N
Y
Adjust the GSM transmitted power
using the BodySAR feature
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Application Guide BodySAR Application Scenarios
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The command and parameters of AT^BODYSARLTE depend on the product.
Figure 4-3 Adjusting the LTE transmitted power
4.5.2 Troubleshooting
None
4.6 Usage Description Of BodySAR Feature
4.6.1 Reference Description
After a module is powered on, the default BodySAR function status is disabled, and the default power control function in the system is used.
The maximum transmitting power parameters take effect in real time only when the following requirements are met:
The AT^BODYSARWCDMA, AT^BODYSARGSM and AT^BODYSARLTE command are used to set the maximum transmitting power parameters successfully.
The AT^BODYSARON=1 command is used to enable the BodySAR function.
When the maximum transmitting power parameters are not set or the BodySAR function is disabled, the default power control function in the system is used.
User inputs
parameters.
Save the parameters.
Is the BodySAR
fearure enabled?
Adjust the maximum LTE
transmitted power to be less than the
specified value.
End
N
Y
Adjust the LTE transmitted power
using the BodySAR feature
HUAWEI ME936 LTE M.2 Module
Application Guide BodySAR Application Scenarios
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After the maximum transmitting power parameters are set, the AT^BODYSARON=0
command can be used to disable the BodySAR function. Then the default maximum transmitting power is resumed. If the AT^BODYSARON=1 command is used to enable the BodySAR function again, the maximum transmitting power parameters that have been set take effect in real time.
The maximum transmitting power parameters are saved in flash. As a contrast, the current BodySAR function status is not saved. That means if the module restarts, the values of the maximum transmitting power parameters are the same with which before restarting, but the BodySAR function status is disabled.
4.6.2 Troubleshooting
None
4.7 Setting the BodySAR Type
4.7.1 Reference Process
Command Description
AT^BODYSARCFG=0 Sets to OFF state. Indicates the BodySAR function is disabled.
OK
AT^BODYSARCFG=1 Sets to ON state. Indicates the bodySAR function is enabled. (default value)
OK
AT^BODYSARCFG=2 AUTO state. If the PLMN number of inserted SIM card is in the BodySAR PLMN list configured in the module, the BodySAR function is enabled. Otherwise, the BodySAR function is disabled.
OK
Only when the BodySAR function is enabled, AT^BODYSARON command can be used.
4.7.2 Troubleshooting
None
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Application Guide
Network Searching and Registration Application
Scenarios
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5 Network Searching and Registration Application Scenarios
5.1 Searching and Registering Network
5.1.1 Reference Process
Command Description
AT+COPS=0 Enables automatic search for networks.
OK
AT+COPS=1,2,"46000" Manual search for the appointed network.
OK
AT+COPS=? Searches for all networks, and returns the networks.
OK
AT+CREG=2 Enables the unsolicited indication when network registration state changes.
OK
AT^SYSCFGEX="00",3FFFFFFF,1,2,7FFFFFFFFFFFFFFF,,
Sets the system mode, network access order, frequency band, roaming support, domain, and other features.
OK
AT^SYSINFOEX Queries the system service state, domain, roaming status, and system mode.
^SYSINFOEX: 2,3,0,1,,1,"GSM",3,"EDGE"
OK
AT^HCSQ? Queries the signal quality.
javascript:void(0)
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Network Searching and Registration Application
Scenarios
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Command Description
^HCSQ:"GSM",73
OK
Figure 5-1 Automatic search for networks
Automatic search for networks
Start
Enable automatic
search for networks.
AT+COPS=0
End
Return OK
The unsolication command
^SRVST indication for
the change of network state.
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Application Guide
Network Searching and Registration Application
Scenarios
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Figure 5-2 Manual search for networks
The application scenario is applicable for 3GPP (GSM/WCDMA/LTE), and UE is not in data service state.
5.1.2 Troubleshooting
Scenario Possible Error Information
Solution
AT+COPS? +CME ERROR: SIM failure
No SIM card is detected. Insert a SIM card.
AT+CREG? +CME ERROR: SIM failure
No SIM card is detected. Insert a SIM card.
Manual search for networks
Start
Enable automatic
search for networks.
AT+COPS=?
Display the
networks found.
Select and register with a network.
AT+COPS=1[,<format>[,<oper>[,<rat>]]]
End
HUAWEI ME936 LTE M.2 Module
Application Guide SMS Application Scenarios
Issue 01 (2014-05-28) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd. 28
6 SMS Application Scenarios
6.1 Overview
Short Message Service (SMS) is a text messaging service using a service center (SC) to transfer short text messages between GSM MEs and Short Message Entities (SMEs). ME936 only supports protocol data unit (PDU) mode message.
A message must contain the following information before it is sent:
For a PDU mode message:
Length of TPDU package
Message content: To compose or send a PDU mode message, the message must contain all the message attributes and be encoded in PDU format. A PDU consists of the following:
− Service Center Address (SCA): composed of the address length, SCA type and SCA reverse byte.
− First octet: contains the message type indicator, TP-RP, TP-UDHI, TP-SRR, TP-VPF, TP-RD, and TP-MTI.
− Short text message statement.
− Destination address: consisting of the destination address, address length and destination address type.
− Protocol identifier.
− Data encoding scheme.
− Validity duration.
− Data length.
− User data: consisting of the user data header and the data encoded in PDU format.
Figure 6-1 shows an example of data encoded in PDU format of submitted type.
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Application Guide SMS Application Scenarios
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Copyright © Huawei Technologies Co., Ltd. 29
Figure 6-1 Example of data encoded in PDU format of submitted type
Figure 6-2 shows the general SMS process.
Figure 6-2 General SMS process
SMS
Start
SMS initialization
Delete short
messages
Write short
messages
Receive
short messages
Read short
messages
Send short
messagesStatus report
End
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Application Guide SMS Application Scenarios
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6.2 Initializing SMS
6.2.1 Reference Process
Command Description
AT+CSCA? Queries the SMSC address.
+CSCA: "13800688509",129
OK
AT+CSCA="+8613800755500"
Sets the SMSC address to the SMSC number of China Mobile's Shenzhen Branch.
OK
AT+CSMS? Queries the short message service type.
+CSMS: 0,1,1,1
OK
AT+CNMI? Queries the configuration of the new message indications to TE.
+CNMI: 0,0,0,0,0
OK
AT+CNMI=2,1,2,2,0 Configures the new message indications to TE.
OK
AT+CPMS? Queries the preferred short message storage.
+CPMS: "SM",12,20,"SM",12,20,"SM",12,20
OK
AT+CPMS="SM" Sets SM as short message storage medium.
OK
AT+CGSMS? Queries the MO SMS bearer domain.
+CGSMS: 1
OK
AT+CMGF? Queries the short message format.
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Application Guide SMS Application Scenarios
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Command Description
+CMGF: 0
OK
AT+CMGF=0 Sets the short message format to PDU.
OK
Use the AT+CMGF command to set short message format: AT+CMGF=0 sets the short message format to PDU.
The SMSC address provided by the service provider must be specified. In PDU mode, the SMSC address is contained in the PDU packets. Therefore, in PDU mode, the AT+CSCA command is optional.
To use the SMS features specified in the GSM 07.05 Phase 2+, the AT+CSMS command must be used to enable the features.
Use the AT+CNMI command to set the unsolicited indications.
Use the AT+CPMS command to select the preferred short message storage (SIM or ME). The ME936 supports only the SM (SIM card) storage.
Use the AT+CGSMS command to select the MO SMS bearer domain (PS or CS domain). For ME936, the CS domain is the preferred MO bearer domain.
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Application Guide SMS Application Scenarios
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Figure 6-3 SMS initialization process – part 1
SMS initialization
Start
Query the SMSCaddress.
Set the SMSC address to the SMSC
number of China Mobile's
Shenzhen Branch.
Set the message
service type.
Require the message
service type.
AT+CSCA?
AT+CSMS? AT+CSMS=1
+CSCA: "",129
OK
+CSMS: 0,1,1,1
OK
*
OK
AT+CSCA="+8613800755500"
+CSMS: 1,1,1
OK
Example: SMSC
address is not specified.
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Application Guide SMS Application Scenarios
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Figure 6-4 SMS initialization process – part 2
Query the unsolicited
indication state.
Enable the notification
of new messages.
Default values
Query the preferred storage
for the current message.
*
AT+CPMS?
AT+CGSMS?
+CNMI: 0,0,0,0,0
OK
AT+CNMI=2,1,2,2,0
+CGSMS: 1
OK
*
OK
+CPMS: "SM",13,20,"SM",13,20,"SM",13,20
OK
AT+CNMI?
AT+CMGF=0
HUAWEI ME936 LTE M.2 Module
Application Guide SMS Application Scenarios
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Figure 6-5 SMS initialization process – part 3
6.2.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous commands.
+CME ERROR: SIM PIN required
Enter the correct PIN.
+CMS ERROR: SIM busy
SIM card initialization has not completed. Try again later.
6.3 Sending Short Messages
6.3.1 Reference Process
Command Description
AT+CMGF=0 Sets the short message format to PDU.
OK
AT+CSCA? Queries the SMSC address.
+CSCA: "13800688509",129
OK
End
OK
AT+CMGF=0
AT+CMGF?
*
+CMGF: 0
OK
HUAWEI ME936 LTE M.2 Module
Application Guide SMS Application Scenarios
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Command Description
AT+CMGS=18
>0031000B813109731147F40000FF04F4F29C0E\x0A
Sends a PDU message without the service center address. The value of SMSC address is the setting of AT+CSCA command.
+CMGS: 168
OK
The message is successfully sent.
AT+CMGS=18
>0891683108608805F931000B813109731147F40000FF04F4F29C0E\x1A
Sends a PDU message with the correct service center address.
+CMGS: 169
OK
The message is successfully sent.
AT+CMGS=18
>0891683108608805F031000B813109731147F40011FF04F4F29C0E\x1A
Sends a PDU message with the wrong service center address.
+CMS ERROR: Network out of order
The message is unsuccessfully sent.
Messages in PDU format must be converted using external tools or users' software. Tools for encoding and parsing messages in PDU format are available on the Internet.
HUAWEI ME936 LTE M.2 Module
Application Guide SMS Application Scenarios
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Figure 6-6 Sending short messages in PDU format
6.3.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous commands.
+CMS ERROR: Network out of order
Check the validity of the service center address or the state of the current network.
Sending messages in PDU format
Start
Send a short message
(given that the PDU length is 18)SMS initialization
PDU message
without SCA
Press <ctrl-Z> to send
the command.
Press <ESC> to cancel
the command
Example: Message
not sentMessage sent
unsuccessfully
End
AT+CMGS=18
+CMS ERROR:
Network out of
order
OK
0031000B813109731147F4
0000FF04F4F29C0E
<ESC>
0891683108608805F931000B
813109731147F40000FF04F4
F29C0E<ctrl-Z>
+CMGS: 1
OK
Message sent
successfully
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Application Guide SMS Application Scenarios
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6.4 Reading Short Messages
6.4.1 Reference Process
Command Description
AT+CMGL=0 Lists all received unread messages.
+CMGL: 2,0,,48
0891683108608805F9040D91683109732097F2000001432619001001F506215744FD3D1A0E930C84296D9EC370BFDE86C2F23228FFAEFF00
+CMGL: 4,0,,64
0891683108608805F9040D91683109732097F200000140326131050032506215744FD3D1A0E930C84296D9EC370BFDBE83C2B0380F6A97416FF7B80C6AVFE5E510
OK
The format of short messages can refer to the AT+CMGL command.
AT+CMGR=4 Reads the message stored in the message storage location 4.
+CMGR: 1,,64
0891683108608805F9040D91683109732097F200000140326131050032506215744FD3D1A0E930C84296D9EC370BFDBE83C2B0380F6A97416FF7B80C6AVFE5E510
OK
The format of short messages can refer to the AT+CMGR command.
There are two methods to read short messages:
Method 1: Use the AT+CMGL command to list the messages that are in specified state and stored in the preferred message storage. The following table describes the message states. If the message sate is received unread messages, the REC UNREAD state will be changed to REC READ after the AT+CMGL command is executed.
Message State PDU Mode
Received unread messages 0
Received read messages 1
Stored unsent messages 2
Stored sent messages 3
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Application Guide SMS Application Scenarios
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Message State PDU Mode
All messages 4
Method 2: Use the AT+CMGR command to read a message from a specified
storage location in the message storage. If the message is a received unread message, its state will be changed to REC READ after it is read using the AT+CMGR command.
You can use the AT+CMGL command to list all short messages so that you can view
the messages' storage locations.
Figure 6-7 Reading short messages
Reading short messages
Start
List received unread
messages in PDU format
+CMGL: <index1>,0,,<length>
<pdu> (messages in PDU format)
......
+CMGL: <indexn>,0,,<length>
<pdu> (messages in PDU format)
OK
PDU format
+CMGR: n,,<length>
<pdu> (messages in PDU format)
OK
End
AT+CMGL=0
AT+CMGR=n
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Application Guide SMS Application Scenarios
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6.4.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous commands.
+CMS ERROR: invalid memory index
Check the validity of the index.
6.5 Deleting Short Messages
6.5.1 Reference Process
Command Description
AT+CMGF=0 Sets the message format to PDU mode.
OK
AT+CMGL=4 Lists all short messages (PDU mode).
+CMGL: 6,2,,30
0011000A9171798762130000A713C8329BFD6681D0EF3B282C2F83F2EFFA0F
+CMGL: 11,1,,36
0791947106004013240C9194715982699000003080413115748013C8329BFD6681D0EF3B282C2F83F2EFFA0F
OK
AT+CMGD=1 Deletes the message stored in storage location 1.
OK
Either all messages stored in the preferred message storage or a message stored in the specified storage location in the preferred message storage can be deleted.
All read or unread messages that have been received can be deleted.
If no messages are stored in the preferred message storage, "OK" is returned when the action to delete messages is completed.
Meanings of the DelFlag value:
− 1: Delete all read messages in the preferred message storage, and keep the unread, sent and unsent messages.
HUAWEI ME936 LTE M.2 Module
Application Guide SMS Application Scenarios
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− 2: Delete all read and sent messages in the preferred message storage, and keep the unread and unsent messages.
− 3: Delete all read, sent, and unsent messages in the preferred message storage, and keep the unread messages.
− 4: Delete all messages in the preferred message storage, including the unread messages.
Figure 6-8 Deleting short message
Deleting short messages
StartPrerequisite:
SMS has been initialized.Example: Lists all short
messages in PDU format.
Delete the message
stored in
location n in the preferred
storage.
Equivalent to
AT+CMGD=n
End
OK
+CMSERROR:
AT+CMGD=n AT+CMGD=n,0
AT+CMGL=4
AT+CMGD=x,DelFlag
X:(0-999)
+CMGL: 1,<parameters>
07919471060040
+CMGL: 2,<parameters>
07919471060040
......
invalid memoryindex
OK
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Application Guide SMS Application Scenarios
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6.5.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous commands.
+CMS ERROR: invalid memory index
Check the validity of the index.
HUAWEI ME936 LTE M.2 Module
Application Guide Phonebook Application Scenarios
Issue 01 (2014-05-28) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd. 42
7 Phonebook Application Scenarios
7.1 Overview
As a product embedded into a host, the phonebook scenarios include that read, write, query and delete the phonebook entries in the SIM card.
Read phonebook: use the AT+CPBR command to read phonebook entries.
Write phonebook: use the AT+CPBW command to save the phonebook entries into
the SIM card.
Delete phonebook: use AT+CPBW command to delete the phonebook entries in the SIM card.
7.2 Initializing the Phonebook
7.2.1 Reference Process
Command Description
AT+CPBS? Queries the current phonebook storage.
+CPBS: "SM",0,250
OK
AT+CPBS="SM" Selects SM as the storage type.
OK
Note that the AT commands for reading and writing phonebook entries can be used only after the phonebook storage is selected. To select a phonebook storage, use the AT+CPBS command.
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Application Guide Phonebook Application Scenarios
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Figure 7-1 Initializing the phonebook
7.2.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous commands.
+CME ERROR: SIM busy
Phonebook initialization has not completed. Try again later.
+CME ERROR: SIM PIN required
Enter the correct PIN.
+CME ERROR: SIM PUK required
Enter the correct PUK.
Initializing the phonebook
StartQuery the available
storage types for the phonebook.
Query the current phonebook storage.
Select SM as the storage type
End
OK
AT+CPBS="SM"
+CPBS: "ON",0,0
OK
AT+CPBS?
AT+CPBS=?
+CPBS: ("SM", "EN","ON")
OK
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Application Guide Phonebook Application Scenarios
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7.3 Reading Phonebook Entries
7.3.1 Reference Process
Command Description
AT+CPBS? Queries the phonebook storage selection and the maximum number of entries that can be stored.
+CPBS: "SM",9,20
OK
AT+CPBR=1,20 Lists all phonebook entries by their indexes.
+CPBR: 1,"+491765864491",145,"John Smith"
+CPBR: 2,"+44545896638",145,"Paul Williams"
+CPBR: 3,"+44556565657",145,"Joe Anderson"
+CPBR: 4,"+445636934485",145,"Oscar Thomso”
+CPBR: 5,"+445565656899",145,"Hannah Adams"
+CPBR: 6,"+447982865563",145,"Samantha Young"
+CPBR: 7,"+449585315798",145,"Alexis Wright"
+CPBR: 8,"+445415454646",145,"Abigail Cox"
+CPBR: 12,"+446565689115",145,"Kyla Clark"
OK
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Application Guide Phonebook Application Scenarios
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Figure 7-2 Reading phonebook entries
7.3.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous commands.
+CME ERROR: SIM busy
Phonebook initialization has not completed. Try again later.
+CME ERROR: SIM PIN required
Enter the correct PIN.
+CME ERROR: SIM PUK required
Enter the correct PUK.
AT+CPBR=<index1> +CME ERROR: invalid index
The index is invalid. Check that index 1 is within the supported range.
Reading phonebook entries
Start
Query the current phonebook storage type.
Initialize the
phonebook.
FD phonebook can store
up to 10 entries; currently 3
entries are stored.
Correct response
Lists all phonebook entries from location x to location y.
The ending location is greater
than the greatest phonebook entry index.
End
+CPBS: "SM",4,250
OK
+CPBS: "ON",1,4
OK
AT+CPBR=x,y
+CME ERROR:
invalid index
+CPBR: 1,"+491765864491",145,"John Smith"
+CPBR: 2,"+445564854245",145,"Ashley Jones"
...
OK
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Application Guide Phonebook Application Scenarios
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Scenario Possible Error Information
Solution
AT+CPBR=<index1>,<index2>
+CME ERROR: invalid index
The index is invalid. Check that index 1 and index 2 are within the supported range and that index 1 is not greater than index 2.
AT+CPBR=<index1> +CME ERROR: not found
No entries are found in the storage locations in index 1. Check that there have been entries successfully written into these locations.
AT+CPBR=<index1>,<index2>
+CME ERROR: not found
No entries are found in the storage locations between index 1 and index 2. Check that there have been entries successfully written into these locations.
7.4 Writing Phonebook Entries
7.4.1 Reference Process
Command Description
AT+CPBR=? Queries the ranges of parameters related to the phonebook entries.
+CPBR: (1-250),80,14
OK
AT+CPBW="5","13903702805",,"test"
Writes a phonebook record.
OK
AT+CPBW=1 Deletes the entry in index 1 in the phonebook.
OK
There are two methods to edit phonebook entries using the AT+CPBW command:
Write an entry to a specified location. This method edits the location where a phonebook entry exists or writes a new entry to a vacant location.
Write a new phonebook entry to the next location of a location that already has a phonebook entry. This method does not require a specified storage location. The
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Application Guide Phonebook Application Scenarios
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AT+CPBW command can be used to edit phonebook entries of the "SM" or "ON" type.
Figure 7-3 Writing phonebook entries
7.4.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous
+CME ERROR: SIM busy
Phonebook initialization has not completed. Try again later.
Writing phonebook entries
Start
AT+CPBR=?
+CPBR: (1-250),20,16
OK
+CPBR: 1,"+491765864491",145,"John Smith"
+CPBR: 3,"+441236548545",145,"Emily Miller"
Query the ranges of
parameters related
to the phonebook
entries.
Parameter ranges
Read all phonebook entries.
Read all the returned results.
Write phonebook
parameters.
AT+CPBW=,"+44546465
4568",145,"Paul Williams"
OK
+CEM ERROR:
memory full
+CEM ERROR:
invalid index
AT+CPBW=1,"+44546465
4568",145,"Paul Williams"
Write a phonebook
entry to a vacant location.
Write a phonebook entry
to a specified location.
Note: If an entry already
exists in the location,
the entry will be overwritten.
End
OK
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Application Guide Phonebook Application Scenarios
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Scenario Possible Error Information
Solution
commands. +CME ERROR: SIM PIN required
Enter the correct PIN.
+CME ERROR: SIM PUK required
Enter the correct PUK.
Error information is returned when writing an entry into the phonebook.
+CME ERROR: dial string too long
Check that the phone number is not too long.
Error information is returned in response to one of the previous commands.
+CME ERROR: invalid index
Check that the location index and phone number type are valid.
Error information is returned when writing an entry into the phonebook.
+CME ERROR: invalid characters in dial string
The phone number to be written into the phonebook contains invalid characters. Delete the invalid characters and try again.
AT+CPBW=,"12345678901234567890123",128,"80534E4E3A"
+CME ERROR: memory full
The storage is full. Delete some entries and try again.
HUAWEI ME936 LTE M.2 Module
Application Guide Data Service Application Scenarios
Issue 01 (2014-05-28) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd. 49
8 Data Service Application Scenarios
8.1 Overview
Figure 8-1 General data service process
The procedure for starting data service is as follows:
1. Initialize data service settings.
2. Attach PS.
3. Define packet data protocol (PDP) contexts.
4. Activate PDP contexts and enter data mode.
General data service process
Start End
Initialization
Define PDP contexts.
Activate PDP contexts. Enter data mode. Deactivate PDP contexts.
Attach PS Deattach
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General data service process is shown as Figure 8-1 . To quit data mode, deactivate PDP contexts, and then detach. For details about the processes of the steps in the previous procedure, see the following sections.
8.2 Initializing Data Service Settings
8.2.1 Reference Process
Command Description
AT+CGREG? Queries the network registration state.
+CGREG: 0,0
OK
AT+CGREG=1 Enables the network registration state URC.
OK
8.2.2 Troubleshooting
Scenario Possible Error Information
Solution
AT+CGREG?
+CGREG: 0,0
OK
The PS domain has not attached.
Run AT+CGATT=1 to
manually attach to the PS domain.
8.3 Attaching/Detaching PS
8.3.1 Reference Process
Command Description
AT+CGATT=1 Attaches PS.
OK
AT+CGATT? Queries the attach state.
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Command Description
+CGATT: 1
OK
AT+CGATT=0 Detaches PS.
OK
If PS has been attached or detached, the attached or detached command will be ignored, and "OK" will be returned.
If the ME detaches PS, all activated PDP contexts will be automatically deactivated.
8.3.2 Troubleshooting
Scenario Possible Error Information
Solution
AT+CGATT?
+CGATT: 0
OK
The PS domain has not attached.
Run AT+CGATT=1 to
manually attach to the PS domain.
8.4 Defining PDP Contexts
8.4.1 Reference Process
Command Description
AT+CGDCONT? Queries the defined PDP contexts.
+CGDCONT: 20,"IPV4V6","","0.0.0.0",0,0
OK
AT+CGDCONT=1,"IP","1234"
Defines a new PDP context.
OK
AT+CGDCONT? Queries the defined PDP context.
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Command Description
+CGDCONT: 1,"IP","1234","",0,0
OK
AT+CGDCONT=1 Deletes the PDP context with <cid>=1.
OK
AT+CGDCONT? Queries the defined PDP contexts.
OK
The AT+CGDCONT command is used to define the context ID and specify the PDP
type and access point name (APN). Each PDP context has a context ID (specified by the <cid> parameter of the AT+CGDCONT command), which is a sequence number starting from 1.
The PDP type describes the protocol between the ME and the network, and the APN specifies the gateway between the mobile network and the Internet.
The range of <cid> supported by ME936 module is the integer from 1 to 20.
Send AT+CGDCONT=<cid>, PDP context returns not defined status.
8.4.2 Troubleshooting
None
8.5 Activate PDP Contexts and Enter Data Mode
8.5.1 Reference Process
Please refer to WWAN UI of related operating system.
For example, on Windows 7 operating system, users can click Connect in WWAN UI to enter data mode.
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Figure 8-2 WWAN UI
8.5.2 Troubleshooting
None
HUAWEI ME936 LTE M.2 Module
Application Guide Security Settings Application Scenarios
Issue 01 (2014-05-28) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd. 54
9 Security Settings Application Scenarios
9.1 Changing the SIM PIN
9.1.1 Reference Process
Command Description
AT+CPWD="SC","9999","1234"
Changes the PIN. Current PIN=9999; new PIN=1234.
OK
AT+CPWD="SC","1113","1233"
Enters an incorrect PIN (first attempt).
+CME ERROR: incorrect password
AT+CPWD="SC","3333","1255"
Enters an incorrect PIN (second attempt).
+CME ERROR: incorrect password
AT+CPWD="SC","4711","1331"
Enters an incorrect PIN (third attempt).
+CME ERROR: SIM PUK required
AT+CPIN? Checks whether the password is requested.
+CPIN: SIM PUK
OK
AT+CPIN="12345678","0000"
Enters the SIM PUK and specify the new SIM PIN (activate new "SC" lock).
OK
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The AT+CPWD command can be used to change a SIM card's PIN. When the SIM
card is PIN protected, the correct PIN must be entered to unblock SIM card. If incorrect PINs are entered three consecutive times, the PUK is required to unblock the SIM.
Figure 9-1 Changing the PIN
9.1.2 Troubleshooting
Scenario Possible Error Information
Solution
AT+CPWD="SC",<oldpwd>,<newpwd>
+CME ERROR: incorrect password
<oldpwd> must be the current PIN. Like the PIN authentication, if incorrect PINs are entered three times, the PUK will be required. If incorrect PUKs are entered 10 times, the SIM card will be permanently blocked.
Changing the PIN
Start
AT+CPIN?
Check the PIN.
Change the PIN.
Incorrect input
End
+CPIN: READY
OK
+CPIN: SIM PUK
OK
AT+CPWD="SC","xxxx","yyyy"
OK+CME ERROR:
incorrect password
+CME ERROR:SIM PUK required
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9.2 Changing the SIM Card Configuration
9.2.1 Reference Process
Command Description
AT+CPIN? Requests the PIN state.
+CPIN: READY
OK
AT+CLCK="SC",2 Requests the SIM card state.
+CLCK: 0
OK
"+CLCK: 0" means that the SIM card is not blocked.
AT+CLCK="SC",1,"5555" Uses an incorrect PIN to change the SIM card lock.
+CME ERROR: incorrect password
AT+CLCK="SC",1,"0000" Enables the SIM card lock.
OK
AT+CLCK="SC",2 Requests the SIM card state.
+CLCK: 1
OK
"+CLCK: 1" means that the SIM card is blocked.
AT+CLCK="SC",0,"0000" Disables the SIM card lock.
OK
AT+CLCK="SC",2 Requests the SIM card state.
+CLCK: 0
OK
"+CLCK: 0" means that the SIM card is not blocked.
AT+CLCK="SC",1,"0000" Enables the SIM card lock.
OK
If the SIM card is blocked, the PIN code (that is, the PIN) is requested when the module is started. To enable the SIM card lock, the PIN is requested. A maximum of three attempts to enter the PIN is allowed. The AT+CLCK="SC",<mode>,<PIN> command can be used to block or unblock the SIM card. When <mode>=1, the SIM card will be blocked. When <mode>=0, the SIM card will be unblocked. Before enabling the SIM card lock, it is recommended that the AT+CPIN? command be used to check the current state of the SIM card lock. If "+CPIN: SIM PUK" is returned, the correct PUK must be entered to change the SIM card settings.
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Figure 9-2 Changing the SIM card configuration
9.2.2 Troubleshooting
Scenario Possible Error Information
Solution
AT+CLCK="SC",1,<pwd>
+CME ERROR: operation not allowed
If PIN authentication has been enabled, it cannot be enabled again. Check whether PIN authentication has been enabled.
Changing the SIM card configuration
Start
AT+CPIN?
+CPIN: READY
OK
+CPIN: SIM PUK
OK
+CLCK: 0
OK
+CLCK: 0
OK
+CME ERROR:
SIM PUK required+CME ERROR:
incorrect password
AT+CLCK="SC",1,<PIN> AT+CLCK="SC",0,<PIN>
+CLCK: 1
OK
AT+CLCK="SC",2
Request the PIN state.
Request the SIM
card lock state.
Block the
SIM card.Unblock the
SIM card.
Incorrect inputEnd
+CLCK: 1
OK
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Application Guide SIM Card Application Scenarios
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10 SIM Card Application Scenarios
10.1 SIM Card Access
10.1.1 Reference Process
Command Description
AT+CRSM=192,28483 Obtains response from the EF.
+CRSM: 144,0,000000026F43040011F05501020000
OK
AT+CRSM=176,12258,0,0,10 Reads binary data from the EF.
+CRSM: 144,0,980000000000000000F3
OK
AT+CRSM=178,28484,1,4,255 Reads records from the EF (incorrect input).
+CRSM: 103,28
OK
The first parameter <sw1>='103'. '103' is a decimal number corresponding to hexadecimal number '67', which indicates "illegal parameter <P3>". The second parameter <sw2>='xx', which indicates the correct length (28 in the example) or indicates that no information is provided.
AT+CRSM=178,28484,1,4,28 Reads the record of the last dialed number from the EF.
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Command Description
+CRSM: 144,0,FFFFFFFFFFFF
FFFFFFFFFFFFFFFF0581420010F6FFFFFFFFFFFFFFFF
OK
The operations to access the SIM card depend on the value of <command>, as described in Table 10-1 .
Table 10-1 Values of <command>
Value Read Binary Command Function
176 READ BINARY Read binary strings from the current data domain.
178 READ RECORD Read complete linear fixed or cyclic data domain consisting of CURRENT, ABSOLUTE, NEXT, and PREVIOUS.
192 GET RESPONSE Return the basic information about the current data domain, including the file type and size.
214 UPDATE BINARY Update the current data domain.
220 UPDATE RECORD Update all the records in the linear fixed or cyclic data domain. There are four update modes: CURRENT, ABSOLUTE, NEXT, and PREVIOUS, of which only the PREVIOUS mode can be used for cyclic files.
242 STATUS Return the status information about the current data domain.
The following table describes the components of the data returned in response to the READ RECORD command.
Byte Description Length
1 to X Alpha identifier X byte(s)
X+1 BCD code length; number/SSC content
1 byte
X+2 TON and NPI 1 byte
X+3 to X+12 Dialed number/SSC string 10 bytes
X+13 Capacity/configuration identifier 1 byte
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Byte Description Length
X+14 Extension1 record identifier 1 byte
Figure 10-1 Reading record response values
Figure 10-2 Obtaining response
Alpha identifierDialed number/SSC string
(24100016)
BCD code length,
number
/SSC content TON and NPI
Capacity/
configuration
identifierExtension
record identifier 1
Obtaining response
Start
AT+CRSM=192,28483
+CRSM: 144,0,000000026
F43040011F05501020000
OK
Request EF
response: (SMS status)
Command ended
normally: 144, 0,...
End
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Figure 10-3 Reading binary
10.1.2 Troubleshooting
Scenario Possible Error Information
Solution
Error information is returned in response to one of the previous commands.
+CME ERROR: SIM not inserted
or
+CME ERROR: memory failure
Insert a SIM card.
Reading binary
Start
AT+CRSM=176,12258,0,0,10
+CRSM: 144,0,980000
000000000000F3
OK
Read binary of "ICC identification"
from the EF.
Return 144,0,....Command
ended normally.
End
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Application Guide
Module Powering Off and Resetting Application
Scenarios
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11 Module Powering Off and Resetting Application Scenarios
11.1 Restarting the ME
11.1.1 Reference Process
Command Description
AT+CFUN=1,1 Restarts the module.
OK
The ME can be reset or restarted using the AT+CFUN command. After the restart,
the module must register with the network and authenticate its SIM card's PIN.
11.1.2 Troubleshooting
None
11.2 Powering Off the ME
11.2.1 Reference Process
Command Description
AT^MSO Powers off the module.
OK
After the command is received, the module will only do the preparative work of power-off such as deregister. The host should cut off the power in order to finish the power-off operation.
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11.2.2 Troubleshooting
None
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12 DPTF Application Scenarios
12.1 Setting Thermal Sensor with the Threshold
12.1.1 Reference Process
Command Description
AT+XTSM=0,1,80000,3000,1000
Sets thermal sensor with the threshold. Indicates that set the RF sensor 0 (only support 0) Alarm ID 1,threshold is 80000-20000=60000 MilliDegC, Hysteresis is 3000 MilliDegC, and the Sampling Period is 1000 ms.
OK
The DPTF feature is used for host to monitor module temperature environment by Thermal Sensor. Host can set several groups threshold to module, and module will unsolicited response to host when module temperature exceed the threshold that host configures.
12.1.2 Troubleshooting
None
12.2 Querying the Current Temperature of a Thermal Sensor
12.2.1 Reference Process
Command Description
AT+XTAMR=0 Queries the temperature of thermal sensor.
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Command Description
+XTAMR: 0,40000
OK
Indicates that the current temperature of RF sensor is 40°C.
12.2.2 Troubleshooting
None
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13 ACT Application Scenarios
13.1 Overview
The ACT (Adaptive Clocking Tuning) feature indicates that the host tunes the clock frequency of components (such as display) which may interfere the WWAN (Wireless Wide Area Network) radio of the module, according to the current frequency information of the module. It can reduce the impact on the WWAN, and improve the performance of OTA (Over The Air).
13.2 Adaptive Clocking
13.2.1 Reference Process
Command Description
AT+XADPCLKFREQINFO=1 Enables ACT feature.
OK
AT+XADPCLKFREQINFO? Queries the status of enabling/disabling the ACT feature.
+XADPCLKFREQINFO: 1
OK
AT+XADPCLKFREQINFO=? Queries Frequency information.
+XADPCLKFREQINFO: 2147600000,5000000,0
OK
The ACT feature is disabled when powered on. It can be enabled by using AT+XADPCLKFREQINFO=1.
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After enabling the ACT feature, the AT command AT+XADPCLKFREQINFO=? can
be used to query the frequency information. If the ACT feature is not enabled, this command will return ERROR.
When the frequency information has been changed, the unsolicited command +XADPCLKFREQINFO will unsolicited present the frequency information.
13.2.2 Troubleshooting
Scenario Possible Error Information
Solution
AT+XADPCLKFREQINFO=?
ERROR
Query current frequency information returns error.
Run AT+XADPCLKFREQINFO=1 to enable ACT feature.
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14 GPS Application Scenarios
14.1 Introduction to GPS
14.1.1 GPS Positioning Methods
Table 14-1 GPS positioning methods
Positioning methods
Description Benefits Drawbacks
Standalone This is a traditional GPS positioning method. Using this method, a module receives satellite signals directly and makes calculations to obtain positioning results.
No communication with the network is invoked, incurring no data traffic between the module and the network.
Long time to first fix (TTFF) in code mode.
Mobile Station Based (MSB) positioning using the User Plane Protocol
Requests the assistant data from the network to assist and accelerate the positioning. This method is one of the Assisted GPS (A-GPS) methods.
Significantly reduces the TTFF after cold start and increases the rate of successful positioning.
Enables positioning in environments with very poor satellite signals.
Requires the assistant data from the network, incurring network traffic.
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Positioning methods
Description Benefits Drawbacks
Mobile Station Assisted (MSA) using the User Plane Protocol
Requests data from the network to assist and accelerate the positioning. After receiving satellite data, the module sends the satellite data to the network for calculations, and the network returns the calculation results to the module. This method is one of the A-GPS methods.
Reduces the TTFF after cold start and increases the rate of successful positioning.
Hands most workload to the network, reducing the module's workload.
Enables positioning in environments with poor satellite signals (network dependent).
Requires complex interaction with the network, incurring network traffic.
Global navigation satellite system (abbreviated as GNSS)
Uses both the GPS and GLONASS for positioning.
Using more satellites, increases the successful positioning rate and the positioning accuracy.
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14.1.2 GPS Ports
Figure 14-1 PC UI Interface and GPS Interface detected after the module is connected to a computer
The PC UI Interface port could be used to send GPS-related AT commands, and the GPS Interface port could be used to send unsolicited indications for NMEA positioning data.
Figure 14-2 Data sent through the PC UI interface and GPS interface ports
GPS Interface PC UI Interface
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Open GPS Interface, then the positioning starts. So if you want to start the positioning by AT command in PC UI Interface, you need execute AT^WPDGP command in PC UI Interface before opening GPS Interface.
14.2 Standalone Positioning
Command Description
AT^WPDOM=0 Sets the positioning method to Standalone.
OK
AT^WPDST=0 Sets the session type to single positioning.
OK
AT^WPDST=1 Sets the session type to tracking positioning.
OK
AT^WPDFR=0,1
Sets unlimited positioning times and the interval between each positioning for the tracking and positioning. If the session is a single positioning, you do not need to set these parameters.
OK
AT^WPDFR=10,2
Sets the number of positioning times and the interval between each positioning for the tracking and positioning. If the session is a single positioning, you do not need to set these parameters.
OK
AT^WPQOS=255,50 Sets the positioning service quality. The first parameter indicates the response time, and the second indicates the horizontal accuracy threshold. This command is just valid for single positioning.
OK
AT^WPDGP Starts positioning.
OK
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Command Description
^POSEND: -1,9 The first value indicates positioning end reason, and the second indicates the left positioning times.
The standalone method can be used when the module has no SIM card inserted.
If there is an ongoing positioning session, the session must be terminated before setting the positioning parameters so that the parameters can take effect for the positioning to be started. This rule applies to all positioning methods.
If the current positioning session is started by executing AT^WPDGP, execute AT^WPEND command in the same interface can terminate it.
If the current positioning session is started by opening GPS interface, close GPS interface can terminate it.
14.3 MSB Positioning Using the User Plane Protocol
Command Description
AT^WPDOM=5 Sets the positioning method to MSB.
OK
AT^WPDST=1 Sets the session type to tracking and positioning.
OK
AT^WPDFR=0,1 Sets unlimited positioning times and the interval between each positioning for the tracking and positioning.
OK
AT^WPURL=SUPL.GOOGLE.COM:7276
Sets the A-GPS server address and port number. This address is just Google A-GPS server. Some of the A-GPS server requires certificate authentication.
OK
AT^WPDGP Starts positioning.
OK
^POSEND: -1,65535 The first value indicates positioning end reason, and the second indicates the left positioning times.
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The MSB method requires the module to register with a network, and will incur data traffic during positioning. When the MSB positioning fails, the module will automatically switch to the standalone positioning.
14.4 MSA Positioning Using the User Plane Protocol
Command Description
AT^WPDOM=1 Sets the positioning method to MSA
OK
AT^WPQOS=255,50
Sets the positioning service quality. The first parameter indicates the response time, and the second indicates the horizontal accuracy threshold.
OK
AT^WPURL=SUPL.GOOGLE.COM:7276
Sets the A-GPS server address and port number. This address is just Google A-GPS server. Some of the A-GPS server requires certificate authentication.
OK
AT^WPDGP Starts positioning.
OK
^POSEND: -1,0 The first value indicates positioning end reason, and the second indicates the left positioning times.
The MSA method requires the module to register with a network, and will incur data traffic
during positioning. When the MSA positioning fails, the module will automatically switch to the standalone positioning.
For MSA, only the single positioning is supported.
14.5 GNSS Positioning
The GNSS positioning uses both the GPS and GLONASS satellites for positioning.
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Command Description
AT^WPCAP=3
Sets GNSS as the positioning system to use both the GPS and GLONASS satellites for positioning. To switch the module to use GPS satellites only, run AT^WPCAP=1.
OK
AT^WPDOM=a value within the value range
For the MSA and MSB positioning methods, the data obtained from the server is two-line orbital elements of GPS satellites, which will not help the GLONASS positioning, but the module will still search for GLONASS satellites.
OK
AT^WPDST=1 Sets the session type to tracking and positioning.
OK
AT^WPDFR=0,1 Sets unlimited positioning times and the interval between each positioning for the tracking and positioning.
OK
AT^WPDGP Starts positioning.
OK
^POSEND: -1,65535 The first value indicates positioning end reason, and the second indicates the left positioning times.
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Application Guide Appendix
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15 Appendix
15.1 Relative Documents
1. HUAWEI ME936 LTE M.2 Module AT Command Interface Specification
2. 3GPP TS 22.004 General on supplementary services
3. 3GPP TS 23.040 Technical realization of the Short Message Service(SMS)
4. 3GPP TS 24.008 Mobile radio interface Layer 3 specification; Core network protocols; Stage 3
5. 3GPP TS 27.005 Equipment (DTE-DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS)
6. 3GPP TS 27.007 AT command set for User Equipment (UE)
7. 3GPP TS 29.002 Mobile Application Part (MAP) specification
8. 3GPP TS 31.102 Universal Subscriber Identity Module(USIM) application
9. ETSI TS 102.221 Smart Cards; UICC-Terminal interface; Physical and logical characteristics
10. GSM 07.05 Equipment (DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS)
15.2 Acronyms and Abbreviations
Table 15-1 List of Abbreviations
Abbreviation Expansion
ACT Adaptive Clocking Tuning
APN Access Point Name
CDMA Code Division Multiple Access
CS Circuit Switched (CS) Domain
DPTF Dynamic Power and Temperature Framework
GNSS Global Navigation Satellite System
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Abbreviation Expansion
GPRS General Packet Radio Service
GPS Global Position System
GSM Global System for Mobile Communications
IMEI International Mobile Equipment Identity
IMSI International Mobile Subscriber Identity
IP Internet Protocol
LTE Long Term Evolution
ME Mobile Equipment
MT Mobile Terminal
NMEA National Marine Electronics Association
OTA Over The Air
PDP Packet Data Protocol
PDU Protocol Data Unit
PIN Personal Identity Number
PLMN Public Land Mobile Network
PPP Point-to-Point Protocol
PUK PIN Unblocking Key
PS Packet Switched (PS) Domain
QoS Quality of Service
RF Radio Frequency
RSSI Receive Signal Strength Indicator
SCA Service Center Address
SIM Subscriber Identity Module
SM Short Message
SMS Short Message Service
SMSC Short Message Service Center
TE Terminal Equipment
TPDU Transfer Protocol Data Unit
UIM User Identity Module
URC Unsolicited Result Code
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Abbreviation Expansion
USIM Universal Subscriber Identity Module
USSD Unstructured Supplementary Service Data
VP Validity Period
WCDMA Wideband CDMA
WWAN Wireless Wide Area Network
Table 15-2 Phonebook-related abbreviations
Abbreviation Full Name
SM SIM phonebook
LD MT last dialed number
EN SIM emergency number
FD SIM fixed dialing number
ON SIM own numbers
RC Recent call list on the MT
MC MT missed call list