HUAWEI ME909u-521 LTE LGA Module Application Guide Issue 01 Date 2013-07-05
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HUAWEI ME909u-521 LTE LGA Module Application Guide About This Document About This Document Revision History Document Version Date 01 2013-07-05 Issue 01 (2013-07-05) Chapter Description Creation Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide Contents Contents 1 Overview......................................................................................................................................... 7 1.1 Conventions and Definitions ............................................................................................................ 7 1.1.1 Conventions ............................................................................................................................. 7 1.
HUAWEI ME909u-521 LTE LGA Module Application Guide Contents 4.3.2 Troubleshooting ..................................................................................................................... 23 5 SMS Application Scenarios ...................................................................................................... 24 5.1 Overview ........................................................................................................................................ 24 5.
HUAWEI ME909u-521 LTE LGA Module Application Guide Contents 7.2.2 Troubleshooting ..................................................................................................................... 50 8 Sleeping and Waking Up Application Scenarios ................................................................. 51 8.1 Hardware Interfaces ....................................................................................................................... 52 8.2 Sequence Diagram.......................
HUAWEI ME909u-521 LTE LGA Module Application Guide Overview 1 Overview This document is intended to provide references for customers to choose appropriate command sequences to start using the ME909u-521 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.
HUAWEI ME909u-521 LTE LGA Module Application Guide Overview Mobile equipment Application network 1.
HUAWEI ME909u-521 LTE LGA Module Application Guide Overview 1.3 Basic AT Command Processing Principles 1.3.1 Ports The ME909u-521 module provides three ports to interact with its host: MODEM port: simulated using USB, for AT command interaction and establishing data connection. Port name: HUAWEI Mobile Connect-3G Modem PCUI port: simulated using USB, for AT command interaction only.
HUAWEI ME909u-521 LTE LGA Module Application Guide Overview Figure 1-1 AT command processing sequence diagram TE UE AT command 1 Process AT command 1 AT command 2 Ignore AT command 2 Return results of AT command 1 AT command 3 Process AT command 3 Return results of AT command 3 Issue 01 (2013-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide Overview Example: AT +CPIN ? +CPIN : READY OK AT +CMGL =4 +CMGL : 0,3,,19 07813108608805 +CMGL : 1,2,,18 07813108608805 +CMGL : 2,2,,18 07813108608805 +CMGL : 3,2,,28 07813108608805 D36CBC 168 +CMGL : 4,2,,24 07813108608805 1A +CMGL : 5,2,,22 07813108608805 +CMGL : 6,2,,22 07813108608805 All AT commands entered during this period of time will be ignored.
HUAWEI ME909u-521 LTE LGA Module Application Guide Overview 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+COPS and return OK. 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.
HUAWEI ME909u-521 LTE LGA Module Application Guide Overview 2. If the module returns failure information, go to step 5. 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.
HUAWEI ME909u-521 LTE LGA Module Application Guide 2 Initialization Application Scenarios 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. Notes: ^SYSSTART is presented only when a module is starting and will not be presented after a module has started.
HUAWEI ME909u-521 LTE LGA Module Application Guide Initialization Application Scenarios 2.2 Querying Basic Information 2.2.1 Reference Process Command Description AT+GMR/CGMR Query software version. Software version Software version. e.g. 11.103.03.00.00 OK AT+GMI/CGMI Query manufacturer identification. Manufacturer Identification For example: Huawei Technologies Co., Ltd. OK AT+GMM/CGMM Query model identification.
HUAWEI ME909u-521 LTE LGA Module Application Guide Initialization Application Scenarios 2.3 Network Service Operations 2.3.1 Reference Process Command Description AT+CFUN? Query a module's current mode. 1 indicates online mode. +CFUN: 1 OK Query whether a module's SIM card is password protected. READY indicates that the SIM card is ready. AT+CPIN? +CPIN: READY OK AT^HCSQ? Query the network signal quality.
HUAWEI ME909u-521 LTE LGA Module Application Guide Initialization Application Scenarios 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. Issue 01 (2013-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide 3 Network Searching and Registration Application Scenarios 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 Search for all networks, and return the networks.
HUAWEI ME909u-521 LTE LGA Module Application Guide Command Network Searching and Registration Application Scenarios Description ^HCSQ:"GSM",73 OK Figure 3-1 Automatic search for networks Automatic search for networks Start Enable automatic search for networks. AT+COPS=0 Return OK The unsolication command ^SRVST indication for the change of network state. End Issue 01 (2013-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide Network Searching and Registration Application Scenarios Figure 3-2 Manual search for networks 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[,[,[,]]] End 3.1.2 Troubleshooting Scenario Possible Error Information Solution AT+COPS? +CME ERROR: SIM failure No SIM card is detected. Insert a SIM card.
HUAWEI ME909u-521 LTE LGA Module Application Guide 4 ECM Application Scenarios ECM Application Scenarios 4.1 ECM Dialing 4.1.1 Reference Process Command Description AT^NDISDUP=? Check the parameter range supported by the command. ^NDISDUP: (1-16),(0-1) OK AT^NDISDUP=1,1,"1234" Set up a dial-up connection using the APN provided by the network server. OK The command is successfully executed. ^NDISSTAT: 1,,,"IPV4" Report the dial-up connection state.
HUAWEI ME909u-521 LTE LGA Module Application Guide 4. ECM Application Scenarios The module responses the service discover, and then sends the IP and DNS address which is obtained from the PDP active process to the network managing device. 4.1.2 Troubleshooting Scenario Possible Error Information Solution AT^NDISDUP=1,1,"1234 " +CME ERROR: SIM failure No SIM card is detected. Insert a SIM card. NDISEND indicates the failure reason during the dial-up.
HUAWEI ME909u-521 LTE LGA Module Application Guide ECM Application Scenarios 4.2.2 Troubleshooting None 4.3 Disconnecting the Dial-up Connection 4.3.1 Reference Process Command Description AT^NDISDUP=1,0 Disconnect the dial-up connection. OK The command is successfully executed. ^NDISSTAT:0,,,"IPV4" IPv4 changes from the connected state to the disconnected state. 4.3.2 Troubleshooting None Issue 01 (2013-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide 5 SMS Application Scenarios SMS Application Scenarios 5.1 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). ME909u-521 only supports protocol data unit (PDU) mode message.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios Figure 5-1 Example of data encoded in PDU format of submitted type Figure 5-2 shows the general SMS process. Figure 5-2 General SMS process SMS Start SMS initialization Write short messages Delete short messages Read short messages Receive short messages Send short messages Status report End Issue 01 (2013-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios 5.2 Initializing SMS 5.2.1 Reference Process Command Description AT+CSCA? Query the SMSC address. +CSCA: "13800688509",129 OK AT+CSCA="+8613800755 500" Set the SMSC address to the SMSC number of China Mobile's Shenzhen Branch. OK AT+CSMS? Query the short message service type. +CSMS: 0,1,1,1 OK Query the configuration of the new message indications to TE.
HUAWEI ME909u-521 LTE LGA Module Application Guide Command SMS Application Scenarios Description OK AT+CMGF=0 Set 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.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios Figure 5-4 SMS initialization process – part 2 * Enable the notification of new messages. Query the unsolicited indication state. AT+CNMI=2,1,2,2,0 AT+CNMI? Default values +CNMI: 0,0,0,0,0 OK OK Query the preferred storage for the current message.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios Figure 5-5 SMS initialization process – part 3 * AT+CMGF? +CMGF:0 OK AT+CMGF=0 OK End 5.2.2 Troubleshooting Scenario Error information is returned in response to one of the previous commands. Possible Error Information Solution +CME ERROR: SIM PIN required Enter the correct PIN. +CMS ERROR: SIM busy SIM card initialization has not completed. Try again later. 5.3 Sending Short Message 5.3.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios Command Description >0031000B813109731147F4 0000FF04F4F29C0E\x0A address. The value of SMSC address is the setting of +CSCA command. +CMGS: 168 The message is successfully sent. OK AT+CMGS=18 >0891683108608805F93100 0B813109731147F40000FF0 4F4F29C0E\x1A +CMGS: 169 Send a PDU message with the correct service center address. The message is successfully sent.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios Figure 5-6 Sending short messages in PDU format Sending messages in PDU format Start Send a short message (given that the PDU length is 18) SMS initialization AT+CMGS=18 PDU message without SCA Press to cancel the command Press to send the command.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios 5.4 Reading Short Messages 5.4.1 Reference Process Command Description AT+CMGL=0 List all received unread messages. +CMGL: 2,0,,48 0891683108608805F9040D916831 09732097F2000001432619001001 F506215744FD3D1A0E930C8429 6D9EC370BFDE86C2F23228FFA EFF00 The format of short messages can refer to the AT+CMGL command.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios 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.
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios 5.4.2 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. 5.5 Deleting Short Messages 5.5.1 Reference Process Command Description AT+CMGF=0 Set the message format to PDU mode. OK AT+CMGL=4 List all short messages (PDU mode).
HUAWEI ME909u-521 LTE LGA Module Application Guide SMS Application Scenarios − 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 5-8 Deleting short message Deleting short messages Start Prerequisite: SMS has been initialized.
HUAWEI ME909u-521 LTE LGA Module Application Guide 6 Phonebook Application Scenarios Phonebook Application Scenarios 6.1 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.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios 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. Figure 6-1 Initializing the phonebook Initializing the phonebook Start Query the available storage types for the phonebook. AT+CPBS=? +CPBS:(“SM”,“EN”,“ON”) OK Query the current phonebook storage.
HUAWEI ME909u-521 LTE LGA Module Application Guide Scenario Phonebook Application Scenarios Possible Error Information Solution +CME ERROR: SIM PUK required Enter the correct PUK. 6.3 Reading Phonebook Entries 6.3.1 Reference Process Command Description AT+CPBS? Query the phonebook storage selection and the maximum number of entries that can be stored. +CPBS: "SM",9,20 OK AT+CPBR=1,20 List all phonebook entries by their indexes.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios Command Description OK Figure 6-2 Reading phonebook entries Reading phonebook entries Start Query the current phonebook storage type. FD phonebook can store up to 10 entries; currently 3 entries are stored. Initialize the phonebook. +CPBS:“ON”,1,4 +CPBS:“SM”,4,250 OK OK Lists all phonebook entries from location x to location y.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios Scenario Possible Error Information Solution AT+CPBR= +CME ERROR: invalid index The index is invalid. Check that index 1 is within the supported range. +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. +CME ERROR: not found No entries are found in the storage locations in index 1.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios 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 AT+CPBW command can be used to edit phonebook entries of the "SM" or "ON" type. Figure 6-3 Writing phonebook entries Writing phonebook entries Start Query the ranges of parameters related to the phonebook entries.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios Possible Error Information Solution +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.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios OK 6.4.2 Troubleshooting Scenario Error information is returned in response to one of the previous commands. AT+CPBF= Possible Error Information Solution +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. +CME ERROR: not found No matches were found.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios 6.5.2 Troubleshooting Scenario Error information is returned in response to one of the previous commands. Possible Error Information Solution +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. 6.6 Setting the TE's Character Sets 6.6.
HUAWEI ME909u-521 LTE LGA Module Application Guide Phonebook Application Scenarios name field is 004800550041005700450049, which is "HUAWEI" in the IRA. OK Read the first phonebook entry. The TE character set is UCS alphabet. The content of the first entry's name field is 004800550041005700450049 ("HUAWEI" in the IRA). AT+CPBR=1 +CPBR: 1,"0123456789",129,"004800550041 005700450049" OK 6.6.
HUAWEI ME909u-521 LTE LGA Module Application Guide 7 SIM Operation Application Scenarios SIM Operation Application Scenarios 7.1 PIN Operations 7.1.1 Reference Process Command Description AT+CLCK="SC",1,"" Enable PIN authentication. ( specifies the PIN. See note 1.) OK AT+CLCK="SC",2 Request the SIM card state. +CLCK: 1 "+CLCK: 1" means that the SIM card is not blocked. OK AT+CLCK="SC",0," " Disable the SIM card lock. ( specifies the PIN. See note 1.
HUAWEI ME909u-521 LTE LGA Module Application Guide SIM Operation Application Scenarios OK AT+CLCK="SC",2 Request the SIM card state. +CLCK: 1 "+CLCK: 1" means that the SIM card is not blocked. OK AT+CPWD="SC","","1234" Change the PIN (1234 will be the new PIN). OK AT+CPWD="SC","1113","1233" Enter an incorrect PIN (first attempt). +CME ERROR: incorrect password AT+CPWD="SC","3333","1233" Enter an incorrect PIN (second attempt).
HUAWEI ME909u-521 LTE LGA Module Application Guide Scenario SIM Operation Application Scenarios Possible Error Information Solution +CME ERROR: incorrect password Enter the correct PIN. The original PIN is provided by the operator. +CME ERROR: SIM PUK required Incorrect PINs have been entered three times and the SIM card is blocked. Run AT+CPIN=""," " to enter the PUK to unblock the SIM card. The PUK is provided by the operator and cannot be changed by users.
HUAWEI ME909u-521 LTE LGA Module Application Guide +CRSM: 144,0,"" OK SIM Operation Application Scenarios is the response data of EFiccid. For details about , refer to the ETSI TS 102.221 protocol. AT+CRSM=214,28421,0,0,2,"0012" Update the content of the transparent structure EFli file on the SIM card. +CRSM: 144,0,"" Update succeeded. OK AT+CRSM=220,28476,1,4,176,"1111", "7F10" Update the content of the linear fixed structure EFsms file on the SIM card.
HUAWEI ME909u-521 LTE LGA Module Application Guide SIM Operation Application Scenarios 7.2.2 Troubleshooting Scenario Possible Error Information Update the content of the linear fixed structure EFsms file on the SIM card. +CRSM: 105,129,"" AT+CRSM=178,12258,0,0, 10 OK Update the content of the linear fixed structure EFsms file on the SIM card.
HUAWEI ME909u-521 LTE LGA Module Application Guide 8 Sleeping and Waking Up Application Scenarios Sleeping and Waking Up Application Scenarios As an embedded component in the host, the module also consumes power, which increases the power consumption of the integrated product. Therefore, the most important task of power management is to reduce the power consumption of the integrated product by enabling the module's sleep mode when necessary.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios 8.1 Hardware Interfaces The module communicates with the host using mainly USB or UART. For details about pins related to power management, see Table 8-1 . For corresponding interface numbers and reference design for the pins, see Hardware Guide for each product.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios 8.2 Sequence Diagram Figure 8-1 WAKE# PIN output sequence Figure 8-2 WAKEUP_OUT PIN output sequence Issue 01 (2013-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios Figure 8-3 WAKEUP_IN PIN input sequence About the vote, see section 8.3.1 . Figure 8-4 SLEEP_STATUS PIN output sequence 8.3 Software Interfaces 8.3.1 Principle The module runs on a multi-task software system. The sleep task is granted with the lowest priority and assigned to detect whether the module can enter sleep mode. Other tasks (such as the RF, SIM card, USB) have voting rights.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios Figure 8-5 Currency state when the module is in sleep mode T 2(SLEE P ) T 1(W akeup) For more information about the module's sleep procedure, see Figure 8-6 Note: The module's sleep mode is different from working mode or flight mode set using the AT+CFUN command.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios Figure 8-6 Sleep procedure 8.3.2 USB and Sleep USB is an important communication channel between the module and the host. According to the USB protocol, normally a hub or a root hub periodically sends Start of Frame (SOF) data packages (one data package per ms using full-speed USB and one package per 125 µs using high-speed USB).
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios Note: If the USB driver used is developed by users or is integrated with external application, ensure that the USB driver supports the USB suspend features (including selective suspend and global suspend, as defined in the USB standard.) 8.3.3 UART and Sleep UART is an important communication channel between the module and the host.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios 2. The USB driver enables or disables remote wake-up by executing SET_FEATURE and CLEAR_FEATURE commands. Therefore, remote wake-up must be enabled on the USB driver before USB enters suspended mode. 3. When the host receives the remote wake-up signal from the module, the host needs to send a full speed K signal that lasts at least 20 ms.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios Remote Wake-up Configuration The power consumption of the host increases if it is frequently woken up. The host can configure the module's wake-up sources using ^WAKEUPCFG and ^CURC command so as to reduce the power consumption. The ^WAKEUPCFG command can be used to choose wake-up sources and the wake-up channel (USB or WAKEUP_OUT). The ^CURC command can choose unsolicited messages.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios the cache when the host is in sleep mode, and reported to the host when it wakes up. OK 8.4.3 Advantages With software configuration, while the system requirements (calling and text messages) are met, the number of times the host is woken up by unsolicited messages, and consequently the power consumption, are reduced. 8.
HUAWEI ME909u-521 LTE LGA Module Application Guide Sleeping and Waking Up Application Scenarios number of text messages exceeds the limit (^SMMEMFULL). Other unsolicited messages are saved in the cache when the host is in sleep mode, and reported to the host when it wakes up. When the host is awake, unsolicited messages are reported to the host. OK 8.5.3 Advantages A solution is provided for systems not supporting USB remote resume.
HUAWEI ME909u-521 LTE LGA Module Application Guide 9 Thermal Protection Application Scenarios Thermal Protection Application Scenarios 9.1 Pre-configuration Command Description AT^CURC=2,0x8000000000,0x8000000000 Enable the thermal protection unsolicited indication when the module is working or in sleep mode. OK ^THERM: 1 When the temperature is higher than the temperature protection threshold, the module enables thermal protection: The module turns off its RF and reports to the host.
HUAWEI ME909u-521 LTE LGA Module Application Guide Thermal Protection Application Scenarios disables thermal protection: turns on its RF transmission, and presents the ^THERM: 0 indication. Notes: Issue 01 (2013-07-05) During an emergency call, if thermal protection is enabled, the module will present an indication but will not take thermal protection actions such as turning off its RF or shutting down. After thermal protection is enabled, users cannot make emergency calls.
HUAWEI ME909u-521 LTE LGA Module Application Guide 10 Module Powering Off and Resetting Application Scenarios Module Powering Off and Resetting Application Scenarios 10.1 Restarting the ME 10.1.1 Reference Process Command Description AT+CFUN=1,1 Restart 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. 10.1.2 Troubleshooting None 10.2 Power Off ME 10.2.
HUAWEI ME909u-521 LTE LGA Module Application Guide Module Powering Off and Resetting Application Scenarios 10.2.2 Troubleshooting None Issue 01 (2013-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HUAWEI ME909u-521 LTE LGA Module Application Guide Appendix 11 Appendix 11.1 Relative Documents 1. HUAWEI ME909u-521 LTE LGA Module AT Command Interface Specification 2. 3GPP 27.007 3. 3GPP 27.005 Equipment (DTE-DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) 4. 3GPP 23.040 Technical realization of the Short Message Service(SMS) 5. 3GPP 31.102 Universal Subscriber Identity Module(USIM) application 6. 3GPP 24.
HUAWEI ME909u-521 LTE LGA Module Application Guide Appendix Acronym or Abbreviation Expansion IMEI International Mobile Equipment Identity IP Internet Protocol LTE Long Term Evolution ME Mobile Equipment MS Mobile Station PDP Packet Data Protocol PDU Protocol Data Unit PIN Personal Identity Number PPP Point-to-Point Protocol PUK PIN Unblocking Key PS Packet Switched (PS) domain QoS Quality of Service SIM Subscriber Identity Module SMS Short Message Service TE Terminal Equipm
