Huawei ME909u-523 Application Manual page 6

HUAWEI ME909u-523 LTE LGA Module
Application Guide
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
Issue 04 (2014-12-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Contents
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