Huawei MU736 HSPA+ M.2 Guía del usuario

HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

Issue

Date

2013-03-22

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HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

About This Document

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

About This Document

Revision History

Document

Version

Date

Chapter

Descriptions

2013-03-22

Creation

HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

Contents

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

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

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

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.

HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

GPS Test Procedure

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

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.

HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

GPS Test Procedure

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

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.

HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

GPS Test Procedure

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

Step 3 The module starts to search the current location, and reports NMEA data.

HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

GPS Test Procedure

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

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.

HUAWEI MU736 HSPA+ M.2 Module

GPS Application Guide

GPS Test Procedure

Issue 01(2013-03-22)

Huawei Proprietary and Confidential

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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