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Huawei ME936 Application Manual

Lte m.2 module
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HUAWEI ME936 LTE M.2 Module
Application Guide
Issue
02
Date
2017-12-11

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Summary of Contents for Huawei ME936

  • Page 1 HUAWEI ME936 LTE M.2 Module Application Guide Issue Date 2017-12-11...
  • Page 2 Thus, the descriptions herein may not exactly match the product or its accessories which you purchase. Huawei reserves the right to change or modify any information or specifications contained in this manual without prior notice and without any liability.
  • Page 3 HUAWEI ME936 LTE M.2 Module Application Guide About This Document About This Document Revision History Document Date Chapter Description Version 2014-05-28 Creation 2017-12-11 Deleted privacy policy Huawei Proprietary and Confidential Issue 02 (2017-12-11) Copyright © Huawei Technologies Co., Ltd.

  • Page 4: Table Of Contents

    HUAWEI ME936 LTE M.2 Module Application Guide Contents Contents 1 Introduction............................ 9 1.1 Overview ............................9 1.2 Conventions and Definitions ......................9 1.2.1 Conventions ..........................9 1.2.2 Definitions ..........................9 1.2.3 Legends ..........................10 1.3 Basic AT Command Processing Principles ..................11 1.3.1 Ports ............................
  • Page 5 HUAWEI ME936 LTE M.2 Module Application Guide Contents 4.4.2 Troubleshooting ........................23 4.5 Adjusting the LTE Transmitted Power Using the BodySAR Feature ..........23 4.5.1 Reference Process ........................ 23 4.5.2 Troubleshooting ........................24 4.6 Usage Description Of BodySAR Feature ..................24 4.6.1 Reference Description ......................
  • Page 6 HUAWEI ME936 LTE M.2 Module Application Guide Contents 8.1 Overview ............................50 8.2 Initializing Data Service Settings ....................51 8.2.1 Reference Process ........................ 51 8.2.2 Troubleshooting ........................51 8.3 Attaching/Detaching PS ......................... 51 8.3.1 Reference Process ........................ 51 8.3.2 Troubleshooting ........................52 8.4 Defining PDP Contexts........................
  • Page 7 HUAWEI ME936 LTE M.2 Module Application Guide Contents 13.2 Adaptive Clocking ......................... 67 13.2.1 Reference Process ......................67 13.2.2 Troubleshooting ........................68 14 GPS Application Scenarios ..................... 69 14.1 Introduction to GPS ........................69 14.1.1 GPS Positioning Methods ....................69 14.1.2 GPS Ports ..........................

  • Page 8: 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.

  • Page 9: Legends

    HUAWEI ME936 LTE M.2 Module Application Guide Introduction 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.

  • Page 10: Basic At Command Processing Principles

    Application Guide Introduction 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 ...

  • Page 11: Recommended Timeout Mechanism For At Commands Processed By A Host

    HUAWEI ME936 LTE M.2 Module Application Guide Introduction Figure 1-1 AT command processing sequence diagram AT command 1 Process AT command 1 AT command 2 Process AT command 2 Return results of AT command 2 Return results of AT command 1...
  • Page 12 HUAWEI ME936 LTE M.2 Module Application Guide Introduction The host sends the AT command to the module. If the module returns failure information, go to step 5. Otherwise, go to step 3. If the module returns success information, the module is functioning normally.

  • Page 13: Basic Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide Basic Application Scenarios Basic Application Scenarios 2.1 Querying the IMEI 2.1.1 Reference Process Command Description AT+GSN/AT+CGSN Queries the IMEI. IMEI For example: 350050500005492 Figure 2-1 Querying the IMEI Huawei Proprietary and Confidential Issue 02 (2017-12-11)

  • Page 14: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Basic Application Scenarios 2.1.2 Troubleshooting Possible Error Scenario Solution Information This error occurs when a module's IMEI is not specified. +CME ERROR: memory AT+GSN/AT+CGSN This problem is solved after failure the IMEI is written into the module.

  • Page 15: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Basic Application Scenarios 2.2.2 Troubleshooting None Huawei Proprietary and Confidential Issue 02 (2017-12-11) Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Airplane Mode Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide Airplane Mode Application Scenarios 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.

  • Page 17: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Airplane Mode Application Scenarios 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: ...

  • Page 18: Bodysar Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide BodySAR Application Scenarios 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.

  • Page 19: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide BodySAR Application Scenarios 4.2.2 Troubleshooting Possible Error Scenario Solution Information AT^BODYSARON=0 ^BODYSARON: 1 It means HW pin enabled BodySAR function. AT^BODYSARON? 4.3 Adjusting the WCDMA Transmitted Power Using the BodySAR Feature 4.3.1 Reference Process...

  • Page 20: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide BodySAR Application Scenarios Figure 4-1 Adjusting the WCDMA transmitted power Adjust the WCDMA transmitted power using the BodySAR feature User inputs parameters. Save the parameters. Is the BodySAR fearure enabled? Adjust the maximum WCDMA transmitted power to be less than the specified value.
  • Page 21 HUAWEI ME936 LTE M.2 Module Application Guide BodySAR Application Scenarios 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 Reduction of maximum Tx power (dB)

  • Page 22: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide BodySAR Application Scenarios Figure 4-2 Adjust the GSM transmitted power Adjust the GSM transmitted power using the BodySAR feature User inputs parameters. Save the parameters. Is the BodySAR fearure enabled? Adjust the maximum GSM transmitted power to be less than the specified value.

  • Page 23: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide BodySAR Application Scenarios The command and parameters of AT^BODYSARLTE depend on the product. Figure 4-3 Adjusting the LTE transmitted power Adjust the LTE transmitted power using the BodySAR feature User inputs parameters. Save the parameters.

  • Page 24: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide BodySAR Application Scenarios 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.

  • Page 25: Network Searching And Registration Application Scenarios

    HUAWEI ME936 LTE M.2 Module Network Searching and Registration Application Application Guide Scenarios 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. AT+COPS=1,2,"46000" Manual search for the appointed network.
  • Page 26 HUAWEI ME936 LTE M.2 Module Network Searching and Registration Application Application Guide Scenarios Command Description ^HCSQ:"GSM",73 Figure 5-1 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.

  • Page 27: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Network Searching and Registration Application Application Guide Scenarios Figure 5-2 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.

  • Page 28: Sms Application Scenarios

    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: ...
  • Page 29 HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios 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 Start SMS initialization Write short Delete short...

  • Page 30: Initializing Sms

    HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios 6.2 Initializing SMS 6.2.1 Reference Process Command Description AT+CSCA? Queries the SMSC address. +CSCA: "13800688509",129 AT+CSCA="+8613800755 Sets the SMSC address to the SMSC number of 500" China Mobile's Shenzhen Branch.
  • Page 31 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. Huawei Proprietary and Confidential Issue 02 (2017-12-11) Copyright ©...
  • Page 32 HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios Figure 6-3 SMS initialization process – part 1 SMS initialization Start Set the SMSC address to the SMSC number of China Mobile's Query the SMSC Shenzhen Branch. address. AT+CSCA? AT+CSCA="+8613800755500"...
  • Page 33 HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios Figure 6-4 SMS initialization process – part 2 Enable the notification Query the unsolicited of new messages. indication state. AT+CNMI=2,1,2,2,0 AT+CNMI? Default values +CNMI: 0,0,0,0,0 Query the preferred storage for the current message.

  • Page 34: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios Figure 6-5 SMS initialization process – part 3 AT+CMGF? +CMGF: 0 AT+CMGF=0 6.2.2 Troubleshooting Possible Error Scenario Solution Information +CME ERROR: SIM Error information is Enter the correct PIN. PIN required...
  • Page 35 HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios Command Description AT+CMGS=18 Sends a PDU message without the service center address. The value of SMSC address is the setting >0031000B813109731147F4 of AT+CSCA command. 0000FF04F4F29C0E\x0A +CMGS: 168 The message is successfully sent.

  • Page 36: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios Figure 6-6 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 <ESC>...

  • Page 37: Reading Short Messages

    HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios 6.4 Reading Short Messages 6.4.1 Reference Process Command Description AT+CMGL=0 Lists all received unread messages. +CMGL: 2,0,,48 The format of short messages can refer to the AT+CMGL command. 0891683108608805F9040D916831 09732097F2000001432619001001...
  • Page 38 HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios Message State PDU Mode All messages  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.

  • Page 39: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios 6.4.2 Troubleshooting Possible Error Scenario Solution Information Error information is returned in response +CMS ERROR: invalid Check the validity of the index. to one of the previous memory index commands.
  • Page 40 HUAWEI ME936 LTE M.2 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.

  • Page 41: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide SMS Application Scenarios 6.5.2 Troubleshooting Possible Error Scenario Solution Information Error information is returned in response +CMS ERROR: invalid Check the validity of the index. to one of the previous memory index commands.

  • Page 42: Phonebook Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide Phonebook Application Scenarios 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.

  • Page 43: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Phonebook Application Scenarios Figure 7-1 Initializing the phonebook Initializing the phonebook Start Query the available storage types for the phonebook. AT+CPBS=? +CPBS: ("SM", "EN","ON") Query the current phonebook storage. AT+CPBS? +CPBS: "ON",0,0 Select SM as the storage type AT+CPBS="SM"...

  • Page 44: Reading Phonebook Entries

    HUAWEI ME936 LTE M.2 Module Application Guide Phonebook Application Scenarios 7.3 Reading Phonebook Entries 7.3.1 Reference Process Command Description Queries the phonebook storage selection AT+CPBS? and the maximum number of entries that can be stored. +CPBS: "SM",9,20 Lists all phonebook entries by their AT+CPBR=1,20 indexes.

  • Page 45: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Phonebook Application Scenarios Figure 7-2 Reading phonebook entries Reading phonebook entries Start Query the current phonebook storage type. FD phonebook can store Initialize the up to 10 entries; currently 3 phonebook. entries are stored.

  • Page 46: Writing Phonebook Entries

    HUAWEI ME936 LTE M.2 Module Application Guide Phonebook Application Scenarios Possible Error Scenario Solution Information The index is invalid. Check that index 1 and index 2 are AT+CPBR=<index1>, +CME ERROR: invalid within the supported range and <index2> index that index 1 is not greater than index 2.

  • Page 47: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Phonebook Application Scenarios AT+CPBW command can be used to edit phonebook entries of the "SM" or "ON" type. Figure 7-3 Writing phonebook entries Writing phonebook entries Start Query the ranges of parameters related to the phonebook entries.
  • Page 48 HUAWEI ME936 LTE M.2 Module Application Guide Phonebook Application Scenarios Possible Error Scenario Solution Information commands. +CME ERROR: SIM Enter the correct PIN. PIN required +CME ERROR: SIM Enter the correct PUK. PUK required Error information is returned when writing an...

  • Page 49: Data Service Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide Data Service Application Scenarios Data Service Application Scenarios 8.1 Overview Figure 8-1 General data service process General data service process Start Initialization Attach PS Deattach Define PDP contexts. Enter data mode. Deactivate PDP contexts.

  • Page 50: Initializing Data Service Settings

    HUAWEI ME936 LTE M.2 Module Application Guide Data Service Application Scenarios 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.

  • Page 51: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Data Service Application Scenarios Command Description +CGATT: 1 AT+CGATT=0 Detaches PS. 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.

  • Page 52: Troubleshooting

    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.

  • Page 53: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Data Service Application Scenarios Figure 8-2 WWAN UI 8.5.2 Troubleshooting None Huawei Proprietary and Confidential Issue 02 (2017-12-11) Copyright © Huawei Technologies Co., Ltd.

  • Page 54: Security Settings Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide Security Settings Application Scenarios Security Settings Application Scenarios 9.1 Changing the SIM PIN 9.1.1 Reference Process Command Description AT+CPWD="SC","9999"," Changes the PIN. Current PIN=9999; new 1234" PIN=1234. AT+CPWD="SC","1113"," Enters an incorrect PIN (first attempt).

  • Page 55: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Security Settings Application Scenarios 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.

  • Page 56: Changing The Sim Card Configuration

    HUAWEI ME936 LTE M.2 Module Application Guide Security Settings Application Scenarios 9.2 Changing the SIM Card Configuration 9.2.1 Reference Process Command Description AT+CPIN? Requests the PIN state. +CPIN: READY AT+CLCK="SC",2 Requests the SIM card state. +CLCK: 0 "+CLCK: 0" means that the SIM card is not blocked.

  • Page 57: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide Security Settings Application Scenarios Figure 9-2 Changing the SIM card configuration Changing the SIM card configuration Start Request the PIN state. AT+CPIN? +CPIN: READY Request the SIM card lock state. +CPIN: SIM PUK AT+CLCK="SC",2...

  • Page 58: Sim Card Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide SIM Card Application Scenarios 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: 144,0,000000026F43040011F0 5501020000 AT+CRSM=176,12258,0,0,10 Reads binary data from the EF.
  • Page 59 HUAWEI ME936 LTE M.2 Module Application Guide SIM Card Application Scenarios Command Description +CRSM: 144,0,FFFFFFFFFFFF FFFFFFFFFFFFFFFF05814200 10F6FFFFFFFFFFFFFFFF The operations to access the SIM card depend on the value of <command>, a s described in Table 10-1 . Table 10-1 Values of <command>...
  • Page 60 HUAWEI ME936 LTE M.2 Module Application Guide SIM Card Application Scenarios Byte Description Length X+14 Extension1 record identifier 1 byte Figure 10-1 Reading record response values Figure 10-2 Obtaining response Obtaining response Start Request EF response: (SMS status) AT+CRSM=192,28483 Command ended normally: 144, 0,...

  • Page 61: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide SIM Card Application Scenarios Figure 10-3 Reading binary Reading binary Start Read binary of "ICC identification" from the EF. AT+CRSM=176,12258,0,0,10 Return 144,0,..Command ended normally. +CRSM: 144,0,980000 000000000000F3 10.1.2 Troubleshooting Possible Error Scenario Solution...

  • Page 62: Module Powering Off And Resetting Application Scenarios

    HUAWEI ME936 LTE M.2 Module Module Powering Off and Resetting Application Application Guide Scenarios 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. 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.

  • Page 63: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Module Powering Off and Resetting Application Application Guide Scenarios 11.2.2 Troubleshooting None Huawei Proprietary and Confidential Issue 02 (2017-12-11) Copyright © Huawei Technologies Co., Ltd.

  • Page 64: Dptf Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide DPTF Application Scenarios DPTF Application Scenarios 12.1 Setting Thermal Sensor with the Threshold 12.1.1 Reference Process Command Description AT+XTSM=0,1,80000,3000 Sets thermal sensor with the threshold. Indicates ,1000 that set the RF sensor 0 (only support 0) Alarm ID...

  • Page 65: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide DPTF Application Scenarios Command Description +XTAMR: 0,40000 Indicates that the current temperature of RF sensor is 40° C. 12.2.2 Troubleshooting None Huawei Proprietary and Confidential Issue 02 (2017-12-11) Copyright © Huawei Technologies Co., Ltd.

  • Page 66: Act Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide ACT Application Scenarios 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.

  • Page 67: Troubleshooting

    HUAWEI ME936 LTE M.2 Module Application Guide ACT Application Scenarios 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.

  • Page 68: Gps Application Scenarios

    HUAWEI ME936 LTE M.2 Module Application Guide GPS Application Scenarios GPS Application Scenarios 14.1 Introduction to GPS 14.1.1 GPS Positioning Methods Table 14-1 GPS positioning methods Positioning Description Benefits Drawbacks methods Standalone This is a traditional No communication Long time to first fix...
  • Page 69 HUAWEI ME936 LTE M.2 Module Application Guide GPS Application Scenarios Positioning Description Benefits Drawbacks methods  Reduces the Mobile Station Requests data Requires complex TTFF after cold Assisted from the network to interaction with the start and (MSA) using assist and...

  • Page 70: Gps Ports

    HUAWEI ME936 LTE M.2 Module Application Guide GPS Application Scenarios 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.

  • Page 71: Standalone Positioning

    HUAWEI ME936 LTE M.2 Module Application Guide GPS Application Scenarios 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.

  • Page 72: Msb Positioning Using The User Plane Protocol

    HUAWEI ME936 LTE M.2 Module Application Guide GPS Application Scenarios 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.

  • Page 73: Msa Positioning Using The User Plane Protocol

    HUAWEI ME936 LTE M.2 Module Application Guide GPS Application Scenarios 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.
  • Page 74 HUAWEI ME936 LTE M.2 Module Application Guide GPS Application Scenarios 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.

  • Page 75: Appendix

    Appendix Appendix 15.1 Relative Documents HUAWEI ME936 LTE M.2 Module AT Command Interface Specification 3GPP TS 22.004 General on supplementary services 3GPP TS 23.040 Technical realization of the Short Message Service(SMS) 3GPP TS 24.008 Mobile radio interface Layer 3 specification; Core network protocols;...
  • Page 76 HUAWEI ME936 LTE M.2 Module Application Guide Appendix Abbreviation Expansion GPRS General Packet Radio Service Global Position System Global System for Mobile Communications IMEI International Mobile Equipment Identity IMSI International Mobile Subscriber Identity Internet Protocol Long Term Evolution Mobile Equipment...
  • Page 77 HUAWEI ME936 LTE M.2 Module Application Guide Appendix Abbreviation Expansion USIM Universal Subscriber Identity Module USSD Unstructured Supplementary Service Data Validity Period WCDMA Wideband CDMA WWAN Wireless Wide Area Network Table 15-2 Phonebook-related abbreviations Abbreviation Full Name SIM phonebook MT last dialed number...

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