Symbian3/PDK/Source/GUID-C69E4379-F62A-5791-975C-9F3A60D3C6D7.dita
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 16 Jul 2010 17:23:46 +0100
changeset 12 80ef3a206772
parent 9 59758314f811
child 14 578be2adaf3e
permissions -rw-r--r--
Week 28 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 1897, Bug 344, Bug 2681, Bug 463, Bug 1522.
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59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<?xml version="1.0" encoding="utf-8"?>
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!-- This component and the accompanying materials are made available under the terms of the License 
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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"Eclipse Public License v1.0" which accompanies this distribution, 
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!-- Initial Contributors:
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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    Nokia Corporation - initial contribution.
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
Dominic Pinkman <dominic.pinkman@nokia.com>
parents: 5
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Contributors: 
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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-->
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept xml:lang="en" id="GUID-C69E4379-F62A-5791-975C-9F3A60D3C6D7"><title>Network Gateway Overview</title><shortdesc>The Network Gateway handles interactions between the LBS subsystem and the network. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody><section><title>Purpose</title> <p>The Network Gateway handles interactions between the LBS subsystem and a network. It communicates with a network using a Network Protocol Module ECom plug-in. </p> </section> <section><title>Required background</title> <p>Knowledge of <xref href="GUID-7233BC33-6060-5D6B-A5D2-01135F059337.dita">LBS architecture</xref> is required. </p> </section> <section><title>Key concepts and terms</title> <dl><dlentry><dt>Network Protocol Module</dt> <dd><p>A Network Protocol Module is an ECOM plug-in that is loaded by the Network Gateway to support a location services architecture and network protocol. Symbian provides two Network Protocol Modules: the SUPL Protocol Module and the Privacy Protocol Module. </p> </dd> </dlentry> </dl> </section> <section><title>Architecture</title> <p>The Network Gateway process is used by the LBS subsystem to communicate with a network. The Network Gateway can load up to two Network Protocol Modules, one for use in the home network and one when the device user is roaming outside of the home network. </p> <p>Figure 1 shows the Network Gateway and the Symbian SUPL Protocol Module. </p> <fig id="GUID-3308A55D-6308-53EB-BA9F-08492C572F35"><title>
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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             Figure 1. LBS Network Gateway and Network Protocol Module ECOM
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             plug-in. 
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80ef3a206772 Week 28 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 1897, Bug 344, Bug 2681, Bug 463, Bug 1522.
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          </title> <image href="GUID-5B1D5561-CC48-5FAD-9DC6-9E89A757288D_d0e454721_href.png" placement="inline"/></fig> </section> <section><title>APIs</title> <p>The Network Gateway is an executable that does not export any APIs. It loads a Protocol Module ECom plug-in that implements the <xref href="GUID-8985B028-4BCD-5858-B22F-EECC52B7B9EB.dita">Network Protocol Module API</xref>. </p> </section> <section><title>Typical uses</title> <p>The Network Gateway performs the following functions: </p> <ul><li id="GUID-9D948F83-6BA3-5DD1-836A-41B5B774B69A"><p>Receiving location requests from the network (MT-LR, Emergency MT-LR and NI-LR) and forwarding them to the Network Request Handler Server. </p> </li> <li id="GUID-864F5F4C-C474-5DD9-9DF0-C13F5C93E549"><p>Sending a calculated position to the network (for terminal based mode and autonomous mode GPS). </p> </li> <li id="GUID-49FE145D-3F8E-5271-BFA5-5EA7B4C0C39E"><p>Sending GPS measurements to the network and receiving the calculated device position (for terminal assisted mode or terminal assisted mode). </p> </li> <li id="GUID-4CF3EB9E-24AC-5E4D-B381-5E89C4493A29"><p>Sending requests for A-GPS assistance data to the network and receiving the response (for terminal based mode or terminal assisted mode). </p> </li> <li id="GUID-0E961FA3-2052-5154-812F-F1A66C1B716F"><p>Sending location to a remote party over the network (MO-LR transmit to third party). </p> </li> </ul> </section> </conbody><related-links><link href="GUID-01C03839-C88B-5FC3-9E0E-686415888B63.dita"><linktext>Network
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                Adaptation</linktext> </link> <link href="GUID-8985B028-4BCD-5858-B22F-EECC52B7B9EB.dita"><linktext>Network Protocol Module API </linktext> </link> </related-links></concept>