Huawei ME909u-523 User guide

HUAWEI ME909u-523 LTE LGA Module
V100R001
Application Guide
Issue
04
Date
2014-12-08

Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.
No part of this manual may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd. and its affiliates ("Huawei").
The product described in this manual may include copyrighted software of Huawei and possible licensors.
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, , and are trademarks or registered trademarks of Huawei Technologies Co., Ltd.
LTE is a trade mark of ETSI.
Other trademarks, product, service and company names mentioned may be the property of their respective
owners.
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 ME909u-523 LTE LGA Module
Application Guide
About This Document
Issue 04 (2014-12-08)
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3
About This Document
Revision History
Document
Version
Date
Chapter
Description
01
2014-05-22
Creation
02
2014-09-05
2.3.1
Updated reference process
15
Added chapter 15:
FOTA Application Scenarios
03
2014-10-30
12.1.4
Updated the description of step 1
04
2014-12-08
8.3.2
Updated notes of USB and sleep

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Contents
1 Overview.........................................................................................................................................9
1.1 Conventions and Definitions ............................................................................................................ 9
1.1.1 Conventions............................................................................................................................. 9
1.1.2 Definitions................................................................................................................................ 9
1.2 Basic AT Command Processing Principles .................................................................................... 10
1.2.1 Ports ...................................................................................................................................... 10
1.2.2 AT Command Processing Mechanism................................................................................... 10
1.2.3 Recommended Timeout Mechanism for AT Commands Processed by a Host..................... 13
2 Initialization Application Scenarios .......................................................................................15
2.1 Startup Indication ^SYSSTART...................................................................................................... 15
2.1.1 Reference Process................................................................................................................ 15
2.1.2 Troubleshooting..................................................................................................................... 15
2.2 Querying Basic Information............................................................................................................ 16
2.2.1 Reference Process................................................................................................................ 16
2.2.2 Troubleshooting..................................................................................................................... 16
2.3 Network Service Operations .......................................................................................................... 17
2.3.1 Reference Process................................................................................................................ 17
2.3.2 Troubleshooting..................................................................................................................... 18
3 Network Searching and Registration Application Scenarios.............................................19
3.1 Searching and Registering Network............................................................................................... 19
3.1.1 Reference Process................................................................................................................ 19
3.1.2 Troubleshooting..................................................................................................................... 21
4 ECM Application Scenarios......................................................................................................22
4.1 ECM Dialing ................................................................................................................................... 22
4.1.1 Reference Process................................................................................................................ 22
4.1.2 Troubleshooting..................................................................................................................... 23
4.2 Querying the Dial-up Connection State.......................................................................................... 23
4.2.1 Reference Process................................................................................................................ 23
4.2.2 Troubleshooting..................................................................................................................... 24
4.3 Disconnecting the Dial-up Connection........................................................................................... 24
4.3.1 Reference Process................................................................................................................ 24
4.3.2 Troubleshooting..................................................................................................................... 24

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5 SMS Application Scenarios ......................................................................................................25
5.1 Overview ........................................................................................................................................ 25
5.2 Initializing SMS............................................................................................................................... 27
5.2.1 Reference Process................................................................................................................ 27
5.2.2 Troubleshooting..................................................................................................................... 30
5.3 Sending Short Messages............................................................................................................... 30
5.3.1 Reference Process................................................................................................................ 30
5.3.2 Troubleshooting..................................................................................................................... 32
5.4 Reading Short Messages............................................................................................................... 32
5.4.1 Reference Process................................................................................................................ 32
5.4.2 Troubleshooting..................................................................................................................... 34
5.5 Deleting Short Messages............................................................................................................... 35
5.5.1 Reference Process................................................................................................................ 35
5.5.2 Troubleshooting..................................................................................................................... 36
6 Phonebook Application Scenarios ..........................................................................................37
6.1 Overview ........................................................................................................................................ 37
6.2 Memory Operations........................................................................................................................ 37
6.2.1 Reference Process................................................................................................................ 37
6.2.2 Troubleshooting..................................................................................................................... 38
6.3 Reading Phonebook Entries .......................................................................................................... 39
6.3.1 Reference Process................................................................................................................ 39
6.3.2 Troubleshooting..................................................................................................................... 40
6.4 Writing/Deleting Phonebook Entries .............................................................................................. 41
6.4.1 Reference Process................................................................................................................ 41
6.4.2 Troubleshooting..................................................................................................................... 42
6.5 Searching for Phonebook Entries .................................................................................................. 43
6.5.1 Reference Process................................................................................................................ 43
6.5.2 Troubleshooting..................................................................................................................... 44
6.6 Querying User Number .................................................................................................................. 44
6.6.1 Reference Process................................................................................................................ 44
6.6.2 Troubleshooting..................................................................................................................... 44
6.7 Setting the TE's Character Sets..................................................................................................... 45
6.7.1 Reference Process................................................................................................................ 45
6.7.2 Troubleshooting..................................................................................................................... 46
7 SIM Operation Application Scenarios....................................................................................47
7.1 PIN Operations............................................................................................................................... 47
7.1.1 Reference Process................................................................................................................ 47
7.1.2 Troubleshooting..................................................................................................................... 49
7.2 CRSM Command........................................................................................................................... 49
7.2.1 Reference Process................................................................................................................ 49
7.2.2 Troubleshooting..................................................................................................................... 51

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8 Sleeping and Waking Up Application Scenarios .................................................................52
8.1 Hardware Interfaces....................................................................................................................... 53
8.2 Sequence Diagram......................................................................................................................... 54
8.3 Software Interfaces ........................................................................................................................ 56
8.3.1 Principle................................................................................................................................. 56
8.3.2 USB and Sleep...................................................................................................................... 58
8.3.3 UART and Sleep.................................................................................................................... 58
8.3.4 Module Wake-up.................................................................................................................... 58
8.3.5 Host Woken up by Module .................................................................................................... 59
8.4 Application Scenarios: System with USB Connection only............................................................ 60
8.4.1 Hardware Connection............................................................................................................ 60
8.4.2 Software Procedure............................................................................................................... 60
8.4.3 Advantages............................................................................................................................ 61
8.5 Application Scenarios: System with USB and WAKEUP_OUT...................................................... 61
8.5.1 Hardware Connection............................................................................................................ 61
8.5.2 Software Procedure............................................................................................................... 61
8.5.3 Advantages............................................................................................................................ 62
8.6 System with Other Connection Methods........................................................................................ 62
9 Thermal Protection Application Scenarios ............................................................................63
9.1 Pre-configuration............................................................................................................................ 63
9.1.1 Troubleshooting..................................................................................................................... 63
9.2 Thermal Protection Process........................................................................................................... 63
10 Module Powering Off and Resetting Application Scenarios...........................................65
10.1 Restarting the ME......................................................................................................................... 65
10.1.1 Reference Process.............................................................................................................. 65
10.1.2 Troubleshooting................................................................................................................... 65
10.2 Powering Off ME.......................................................................................................................... 65
10.2.1 Reference Process.............................................................................................................. 65
10.2.2 Troubleshooting................................................................................................................... 66
11 GPS Application Scenarios .....................................................................................................67
11.1 Introduction to GPS...................................................................................................................... 67
11.1.1 GPS Positioning Methods.................................................................................................... 67
11.1.2 GPS Ports............................................................................................................................ 69
11.2 Standalone Positioning................................................................................................................. 70
11.3 MSB Positioning Using the User Plane Protocol.......................................................................... 71
11.4 MSA Positioning Using the User Plane Protocol.......................................................................... 72
11.5 XTRA Positioning.......................................................................................................................... 73
11.6 GNSS Positioning......................................................................................................................... 74
12 Local Upgrade Application Scenarios...................................................................................76
12.1 Starting the Local Upgrade........................................................................................................... 76

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12.1.1 Full Upgrade Flow ............................................................................................................... 76
12.1.2 Launch the Local Upgrade .................................................................................................. 77
12.1.3 Transfer the Upgrade File.................................................................................................... 77
12.1.4 Test...................................................................................................................................... 78
12.1.5 Reference Process.............................................................................................................. 81
12.1.6 Troubleshooting................................................................................................................... 82
12.2 Reporting the Local Upgrade State.............................................................................................. 82
12.2.1 Reference Process.............................................................................................................. 82
12.2.2 Troubleshooting................................................................................................................... 82
13 LED Indication Application Scenarios .................................................................................83
13.1 Overview ...................................................................................................................................... 83
13.2 LED Setting Operations ............................................................................................................... 84
13.2.1 Reference Process.............................................................................................................. 84
13.2.2 Troubleshooting................................................................................................................... 85
14 Serial Port Configuration Application Scenarios ...............................................................86
14.1 Baud Rate Configuration.............................................................................................................. 86
14.1.1 Reference Process.............................................................................................................. 86
14.1.2 Troubleshooting................................................................................................................... 86
14.2 Setting Hardware Flow Control .................................................................................................... 87
14.2.1 Reference Process.............................................................................................................. 87
14.2.2 Troubleshooting................................................................................................................... 87
15 FOTA Application Scenarios..................................................................................................88
15.1 FOTA Process .............................................................................................................................. 88
15.1.1 Upgrade Module Firmware Over Air Through Delta Package............................................. 88
15.1.2 Procedure for FOTA Implementation................................................................................... 88
15.2 Setting FOTA Mode...................................................................................................................... 91
15.2.1 Reference Process.............................................................................................................. 91
15.2.2 Troubleshooting................................................................................................................... 91
15.3 Setting FOTA Connection Parameters......................................................................................... 92
15.3.1 Reference Process.............................................................................................................. 92
15.3.2 Troubleshooting................................................................................................................... 92
15.4 Manually Querying for Upgrade Firmware Version...................................................................... 93
15.4.1 Reference Process.............................................................................................................. 93
15.4.2 Troubleshooting................................................................................................................... 94
15.5 Periodically Querying the Version................................................................................................ 95
15.5.1 Reference Process.............................................................................................................. 95
15.5.2 Troubleshooting................................................................................................................... 95
15.6 Manually Downloading the Version.............................................................................................. 96
15.6.1 Reference Process.............................................................................................................. 96
15.6.2 Troubleshooting................................................................................................................... 97
15.7 Automatically Downloading the Firmware.................................................................................... 98

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15.7.1 Reference Process.............................................................................................................. 98
15.7.2 Troubleshooting................................................................................................................... 98
15.8 Using the Resumable Data Transfer Function............................................................................. 98
15.8.1 Reference Process.............................................................................................................. 98
15.8.2 Troubleshooting................................................................................................................... 99
15.9 Manually Cancelling the Download.............................................................................................. 99
15.9.1 Reference Process.............................................................................................................. 99
15.9.2 Troubleshooting................................................................................................................. 100
15.10 Manually Upgrading the Version .............................................................................................. 100
15.10.1 Reference Process.......................................................................................................... 100
15.10.2 Troubleshooting............................................................................................................... 101
15.11 Automatically Upgrading the Version........................................................................................ 101
15.11.1 Reference Process .......................................................................................................... 101
15.11.2 Troubleshooting ............................................................................................................... 102
16 Appendix ..................................................................................................................................103
16.1 Relative Documents................................................................................................................... 103
16.2 Acronyms and Abbreviations...................................................................................................... 103

HUAWEI ME909u-523 LTE LGA Module
Application Guide
Overview
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9
1 Overview
This document is intended to provide references for customers to choose appropriate
command sequences to start using the ME909u-523 module in a faster manner. This
document also contains examples and relevant description.
This document will be updated based on customers' requirements.
1.1 Conventions and Definitions
1.1.1 Conventions
Convention
Description
<…>
Value range of AT command parameters
XXXX
Personal Identification Number (PIN), Personal Unlock Key
(PUK), or password
1.1.2 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
LTE/UMTS/GSM network.
Module
HUAWEI LTE module

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Overview
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Application Mobile equipment
network
1.2 Basic AT Command Processing Principles
1.2.1 Ports
The ME909u-523 module provides four ports to interact with its host:
MODEM port: simulated using USB, forAT command interaction and
establishing data connection.
Port name: HUAWEI Mobile Connect-Modem
PCUI port: simulated using USB, forAT command interaction only.
Port name: HUAWEI Mobile Connect-PCUI Interface
ECM port: simulated using USB, for establishing communication connection.
Port name: CDC Ethernet Control Model (ECM)
NMEAport: simulated using USB, sending unsolicited indications for NMEA
positioning data and sending GPS AT command.
Port name: HUAWEI Mobile Connect-GPS Interface
NOTE
The ME909u-523 module does not support the modem dialing-up.
The ME909u-523 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 usingAT commands. If AT commands are unavailable, a
module can be deemed as unavailable.
1.2.2 AT Command Processing Mechanism
A module processesAT commands from the ports (MODEM, PCUI, GPS and UART)
in series.An AT command can be processed when and only when the previous AT
command processing has been completed. If the module is processing anAT
command, a newAT command from the same port will be ignored and other
commands from other ports will be buffered until the currentAT command is
processed.

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This rule also applies to COM ports converted from USB ports.
The processing of anAT command starts when theAT command is entered from the
TE, and ends when the UE (the module) returns all the results in response the
command.
Figure 1-1 ATcommand processing sequence diagram
TE UE
AT command 1
AT command 2
Return results of AT command 1
AT command 3
Ignore AT
command 2
Process AT
command 1
Process AT
command 3
Return results of AT command 3

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Example:
AT
+
CPIN
?
+
CPIN
:
READY
OK
AT
+
CMGL
=
4
+
CMGL
:
0
,
3
,,
19
07813108608805
F
911320
B
813109730116
F
20000
A
705
B
3
D
84
C
4603
+
CMGL
:
1
,
2
,,
18
07813108608805
F
931
FF
0
B
813109730155
F
30000
A
704
F
4
F
29
C
0
E
+
CMGL
:
2
,
2
,,
18
07813108608805
F
931
FF
0
B
813109730155
F
30000
A
704
F
4
F
29
C
0
E
+
CMGL
:
3
,
2
,,
28
07813108608805
F
931
FF
0
B
813109730155
F
30000
A
71061
F
69
CAC
2
EBF
69
B
5
FA
4
D
36
CBC
168
+
CMGL
:
4
,
2
,,
24
07813108608805
F
931
FF
0
B
813109730155
F
30000
A
70
BB
05
C
2
D
5
DB
7
C
1
D
4
ECB
4
1
A
+
CMGL
:
5
,
2
,,
22
07813108608805
F
931
FF
0
B
813109730155
F
30000
A
7096
E
333
B
8
DCBE
77079
+
CMGL
:
6
,
2
,,
22
07813108608805
F
931
FF
0
B
813109730155
F
30000
A
70930598
D
26
A
7
DBDF
68
OK
All AT commands entered during
this period of time will be
ignored.
All AT commands entered
during this period of time will
be ignored.
Some special AT commands can be aborted by new AT commands. Such special
commands are called abortive commands.
The ME909u-523 supports the following abortive AT commands:
TheAT+COPS Set command
AT+CLCK

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Example:
AT+COPS=1,2,23415
OK
Before the results ofAT+COPS
is returned, enter any characters
(such as"AT"), the module will
terminate the processing of
AT+COPSand returnOK. The
entered characters are used to
abort the command only .
Some commands can be executed when SIM card is inserted. It would return to SIM
failure if SIM card is not inserted. For more information, see Property Description of
relatedAT in HUAWEI ME909u-523 LTE LGA Module AT Command Interface Specification.
Example:
AT+CREG?
+CME ERROR: SIM failure
NOTE
SIM failure indicates that SIM card is not inserted.
1.2.3 Recommended Timeout Mechanism for AT Commands
Processed by a Host
A module processesAT 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 abortive AT command). The following
table listsAT command timeout durations (starting from the time when anAT
command arrives at a port).
Table 1-1 AT command timeout duration
AT Command
Timeout Duration
General AT commands
30s
AT+CMSS/AT+CMGS (used to send text
messages)
60s
AT+COPS=? (used to search for networks)
120s
After anAT command times out, it is recommended that the host check whether the
module is functioning normally. The following procedure is provided for your
reference:
1. The host sends AT to the module.
2. If the module returns failure information, go to step 5.
3. If the module returns success information, the module is functioning normally.

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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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Initialization Application Scenarios
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2 Initialization Application Scenarios
2.1 Startup Indication ^SYSSTART
2.1.1 Reference Process
Command
Description
A module, without solicitation, presents ^SYSSTART to
its host to indicate that the module is starting.
^SYSSTART
Indicate that a module is starting.
NOTE
^SYSSTART is presented only when a module is starting and will not be presented after a
module has started.
^SYSSTART is presented only after the radio frequency (RF) initialization completes and
will not be presented in offline mode.
^SYSSTART is only report on URAT port, USB port not demanded.
2.1.2 Troubleshooting
Scenario
Possible Error
Information
Solution
The module presents
^SYSSTART during startup.
After that, the module
presents ^SYSSTART again.
Indicate that the
module has been
reset.
If ^SYSSTART is presented
repeatedly, send the module
to the specified repair center.

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2.2 Querying Basic Information
2.2.1 Reference Process
Command
Description
AT+GMR/CGMR
Query software version.
Software version
OK
Software version. e.g. 11.430.37.00.00
AT+GMI/CGMI
Query manufacturer identification.
Manufacturer
Identification
OK
For example: Huawei Technologies Co., Ltd.
AT+GMM/CGMM
Query model identification.
Model identification
OK
For example: ME909u-523
AT+GSN/CGSN
Query product IMEI.
IMEI
OK
For example: 865261010004010
NOTE
The previously listed commands are query commands and cannot be used to configure
settings.
2.2.2 Troubleshooting
Scenario
Possible Error
Information
Solution
AT+GSN/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.

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2.3 Network Service Operations
2.3.1 Reference Process
Command
Description
AT+CFUN?
Query a module's current mode. 1indicates
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

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AT+CGDCONT=1,"IP","CMNET"[1]
Set specific PDP context. It is an example of
packet data service settings. Set the PDP
context required by packet data service dial-
up.
OK
NOTE
[1] Set the correct APN when data service is initialized.
2.3.2 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.

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Network Searching and Registration Application
Scenarios
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3 Network Searching and Registration
Application Scenarios
3.1 Searching and Registering Network
3.1.1 Reference Process
Command
Description
AT+COPS=0
Enable automatic search for networks.
OK
AT+COPS=1,2,"46000"
Manual search for the appointed network.
OK
AT+COPS=?
Search for all networks, and return the
networks.
OK
AT+CREG=2
Enable the unsolicited indication when
network registration state changes.
OK
AT^SYSCFGEX="00",3FFFFFFF
,1,2,7FFFFFFFFFFFFFFF,,
Set the system mode, network access order,
frequency band, roaming support, domain,
and other features.
OK
AT^SYSINFOEX
Query the system service state, domain,
roaming status, and system mode.
^SYSINFOEX:
1,0,1,255,,3,"WCDMA",41,"WCDMA"
OK
AT^HCSQ?
Query the signal quality.

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Command
Description
^HCSQ: "WCDMA",15,12,46
OK
Figure 3-1 Automatic search for networks