Huawei MU736 HSPA+ M.2 User guide

HUAWEI MU736 HSPA+ M.2 Module
GPS Application Guide
Issue
01
Date
2013-03-22

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HUAWEI MU736 HSPA+ M.2 Module
GPS Application Guide
About This Document
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About This Document
Revision History
Document
Version
Date
Chapter
Descriptions
01
2013-03-22
Creation

HUAWEI MU736 HSPA+ M.2 Module
GPS Application Guide
Contents
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Contents
1 Introduction....................................................................................................................................5
2 GPS Test Procedure ......................................................................................................................6
2.1 Enabling or Disabling GPS............................................................................................................... 6
2.2 GPS Test.......................................................................................................................................... 6
2.3 A-GPS Test..................................................................................................................................... 10
2.4 GPS Positioning in Windows 8....................................................................................................... 10
2.4.1 Using the Sensor Diagnostic Tool ......................................................................................... 10
2.4.2 Using the Maps Application................................................................................................... 14
3 GPS Tool User Guide.................................................................................................................17
3.1 Overview ........................................................................................................................................ 17
3.2 Test Procedure ............................................................................................................................... 17
3.2.1 Setting the Debug Mode........................................................................................................ 17
3.2.2 Configuring the Dialog Windows ........................................................................................... 19
3.3 Checking Window Display.............................................................................................................. 26
3.3.1 Checking Signal Quality Window .......................................................................................... 26
3.3.2 Checking Location Data Window .......................................................................................... 28
3.3.3 Checking A-GPS Location Window....................................................................................... 28
3.4 Calculating CEP............................................................................................................................. 29
3.4.1 Averaging TTFF..................................................................................................................... 29
3.4.2 Calculating CEP .................................................................................................................... 31
3.5 Exiting the GPS Tool ...................................................................................................................... 33
4 Acronyms and Abbreviations...................................................................................................35

HUAWEI MU736 HSPA+ M.2 Module
GPS Application Guide
Introduction
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1 Introduction
The MU736 module incorporates a Global Positioning System (GPS) chipset capable
of GPS and network assisted GPS (A-GPS). The standalone GPS depends on GPS
satellites to provide location information, while theA-GPS functions in conjunction
with base stations as well as GPS satellites to improve the time to first fix (TTFF).
The purpose of this document is to guide how to do the GPS test.

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GPS Application Guide
GPS Test Procedure
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2 GPS Test Procedure
2.1 Enabling or Disabling GPS
The MU736 GPS module can have its GPS function enabled or disabled.
To disable GPS: Before the MU736 is powered on, pull down the
GPS_DISABLE_N (PIN 25) pin. Then after the MU736 is powered on, GPS is
disabled and cannot be enabled by using AT commands.
To enable GPS: Before the MU736 is powered on, pull up the GPS_DISABLE_N
(PIN 25) pin. Then after the MU736 is powered on, GPS is enabled and can be
disabled by using AT commands.
2.2 GPS Test
Ensure that the GPS antenna is located in an open sky environment.
In Windows 7 or Windows XP
On a computer running Windows 7 or Windows XP, use HyperTerminal to test the
GPS.
Step 1 Right-click My Computer, and choose Manage from the shortcut menu. In the
displayed Computer Management window, click Device Manager in the left pane,
and check for HUAWEI Mobile Connect-3G GPS Interface (COM 25) under Ports in
the right pane.

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GPS Application Guide
GPS Test Procedure
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Step 2 Open the HyperTerminal and select the GPS port.
−1) Click the icon .
−2) Select COM25 in the Connect using list, and then click OK.
−3) Select 115200 in the Bits per second list, and then click OK.

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GPS Application Guide
GPS Test Procedure
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Step 3 The module starts to search the current location, and reports NMEA data.

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GPS Application Guide
GPS Test Procedure
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If the NMEAdata contains latitude and longitude values (for example,
2231.8378,N,11356.6409E), it means that the module obtains the current location
information.
Step 4 Disconnect the GPS port on HyperTerminal to stop GPS location and NMEA data
reporting.

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GPS Application Guide
GPS Test Procedure
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In Windows 8
On a computer running Windows 8, open a GPS-enabled map application to start
GPS location.
2.3 A-GPS Test
Step 1 Load the Secure User Plane Location (SUPL) server and certificate information onto
the nonvolatile storage of the MU736 module.
The MU736 module has integrated the server and certificate information, and no
additional configuration is required. If an original equipment manufacturer (OEM)
needs to load the certificate other than the integrated one, the OEM can contact
Huawei to integrate the certificate into the PC Vendor tool. Once the certificate is
integrated into the PC Vendor, one-click is required to load the certificate and relevant
server information into the MU736 module.
Step 2 Insert a SIM card that has subscribed to network services into the MU736 module.
Then set up a dial-up connection.
The MU736 starts theA-GPS positioning.
2.4 GPS Positioning in Windows 8
2.4.1 Using the Sensor Diagnostic Tool
To use the Sensor Diagnostic Tool provided in the Windows driver program installation
kit:
Step 1 Connect the MU736 module to one of the USB ports on a PC.
Step 2 Right-click My Computer, and choose Manage from the shortcut menu. In the
displayed Computer Management window, click Device Manager in the left pane,
and check for HUAWEI GNSS Sensor under Sensors in the right pane.

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GPS Application Guide
GPS Test Procedure
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Step 3 Close the window. Perform either of the following:
If you are usingA-GPS positioning, go to Step 4.
If you are using GPS positioning, go to Step 5.
Step 4 Set up a dial-up connection.
After the dial-up connection is set up, you can use the A-GPS positioning.

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GPS Application Guide
GPS Test Procedure
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Step 5 While the GPS antenna is located in an open sky environment, open the Sensor
Diagnostic Tool. The Sensor Diagnostic Tool user interface is displayed, and GPS
positioning starts.
Step 6 In the left pane, select HUAWEI GNSS Sensor under Sensors.
Initializing is displayed in State, indicating that the GPS positioning is in progress.

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GPS Application Guide
GPS Test Procedure
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Under Properties, the HUAWEI GNSS port information is displayed. Under Data, the latitude,
longitude, system time, and moving speed of the MU736 are displayed. If the GPS positioning
does not complete, only the system time of the MU736 is displayed.
When the content of State turns from Initializing to Ready, the MU736 has obtained
its current position information. Under Data, you can view the GPS location
information, including the latitude, longitude, altitude, and system time of the MU736.

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GPS Application Guide
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2.4.2 Using the Maps Application
To use the Maps application for GPS positioning:
Step 1 Open Maps.

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GPS Application Guide
GPS Test Procedure
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Your current location is displayed on the map within 1 minute. In this example, the
location of the Huawei Device building is displayed.
Step 2 To have a better view of the current location, click Map style at the bottom and select
Aerial view.
The current location is updated per second. To check the NMEAsentences, access
the Bus Hound.

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GPS Application Guide
GPS Test Procedure
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GPS Application Guide
GPS Tool User Guide
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3 GPS Tool User Guide
3.1 Overview
The MU736 GPS Tool is used to test the GPS functions.
Prepare Tools:
NO.
Name
Comment
1
GPS Tool 1.6.0.0
Run the GPS test
3.2 Test Procedure
3.2.1 Setting the Debug Mode
The purpose of this step is to expose the GPS Interface and PC UI Interface in the
Windows 8 system. So if your computer system is Windows 7/Windows XP, please
skip this step and run the next step (chapter 3.2.2 ) directly.
The GPS Tool 1.6.0.0 will enable debug mode automatically once you open the GPS
Tool; and it will exit debug mode when you close the GPS Tool.
However the driver has the bug that cannot display the interface friendly name. We
will resolve it as soon as possible.
Now the contingency scheme is to distinguish the interface by the following steps.
Step 1 Open the GPS Tool.

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GPS Application Guide
GPS Tool User Guide
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Step 2 Get the interface friendly name.
−1) Open the Ports list, and choose HUAWEI Mobile Connect –Serial
Port(COM22)
−2) Select the Properties
−3) Select the Details
−4) Select the Compatible Ids in Property list
−5) Check the interface friendly name in Value (It is means that COM22
USB/MS_COMP_HWJGNSS is the GPS interface exactly)

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GPS Application Guide
GPS Tool User Guide
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3.2.2 Configuring the Dialog Windows
Create a New Result Log File
Step 1 Create a new Result Log file to store the locate process log (named gps_log) in
Configuration > NMEA.
−1) Press Result Log file button
−2) Write down a File name (gps_log)
−3) Press Save button

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GPS Application Guide
GPS Tool User Guide
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Step 2 Create a new Result Log file to store the position data output (named gps_result)
in Testing.
−1) Press Result Log file button
−2) Write down a File name (gps_result)
−3) Press Save button