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Location Inter-operability Forum Mobile Location Protocol (MLP). Reporter : Allen. Outline. Introduction MLP Overview MLP Structure MLP Basic services & Message Flow Thesis Modification Plan. Introduction I.

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Presentation Transcript
outline
Outline
  • Introduction
  • MLP Overview
  • MLP Structure
  • MLP Basic services & Message Flow
  • Thesis Modification Plan
introduction i
Introduction I
  • MLP is an application-level protocol for getting the position of mobile stations (mobile phones, wireless personal digital assistants, etc.)
  • Define a simple and secure access method that allow Internet applications to query location information from a wireless network
    • Irrespective of its underlying air interface technologies and positioning methods
  • This specification has been prepared by LIF to provide a simple and secure API to the location server
introduction ii
Introduction II
  • MLP serves as the interface between a Location Server and a Location Services (LCS) Client
  • The API is based on existing and well-known Internet technologies as HTTP, SSL/TLS and XML
  • Motorola, Nokia, Ericsson contribution to LIF
    • 23-Jan-2001 : Version 1.0
    • 06-Jun-2002 :Final change 3.0.0
mlp overview
MLP Overview
  • MLP serves as the interface between a Location Server and a Location Services (LCS) Client
mlp basic services message flow
MLP Basic services & Message Flow
  • Standard Location Immediate Service
  • Emergency Location Immediate Service
  • Standard Location Reporting Service
  • Emergency Location Reporting Service
  • Triggered Location Reporting Service
standard location immediate service
Standard Location Immediate Service
  • This service is used when a (single) location response is required immediately (within a set time) or the request may be served by several asynchronous location responses (until a predefined timeout limit is reached)
  • This service consists of the following messages:
    • Standard Location Immediate Request
    • Standard Location Immediate Answer
    • Standard Location Immediate Report
slis message flow
LCS Client

Location Server

Standard Location Immediate Request

Standard Location Immediate Answer

Standard Location Immediate Report

If needed

SLIS Message Flow
emergency location immediate service
Emergency Location Immediate Service
  • This is a service used especially for querying of the location of a mobile subscriber that has initiated an emergency call
  • The response to this service is required immediately (within a set time).
  • This service consists of the following messages:
    • Emergency Location Immediate Request
    • Emergency Location Immediate Answer
elis message flow
LCS Client

Location Server

Emergency Location Immediate Request

Emergency Location Immediate Answer

ELIS Message Flow
standard location reporting service
Standard Location Reporting Service
  • This is a service that is used when a mobile subscriber wants an LCS Client to receive the MS location.
  • Which application and its address are specified by MS or defined in the location server
  • This service consists of the following message:
    • Standard Location Report
slrs message flow
LCS Client

Location Server

Standard Location Report

SLRS Message Flow
emergency location reporting service
Emergency Location Reporting Service
  • This is a service that is used when the wireless network automatically initiates the positioning at an emergency call.
  • The position and related data is then sent to the emergency application from the location server
  • Which application and its address are defined in the location server.
  • This service consists of the following message:
    • Emergency Location Report
elrs message flow
LCS Client

Location Server

Emergency Location Report

ELRS Message Flow
triggered location reporting service
Triggered Location Reporting Service
  • This is a service used when the mobile subscriber’s location should be reported at a specific time interval or on the occurrence of a specific event.
  • This service consists of the following messages:
    • Triggered Location Reporting Request
    • Triggered Location Reporting Answer
    • Triggered Location Report
    • Triggered Location Reporting Stop Request
    • Triggered Location Reporting Stop Answer
tlrs message flow
LCS Client

Location Server

Triggered Location Reporting Request

Triggered Location Reporting Answer

Triggered Location Report

Triggered Location Report

Triggered Location Reporting Stop Request

Triggered Location Reporting Stop Answer

TLRS Message Flow
cpl sl protocol stack on thesis
Service

Content

Presence

Location

GPS/MLP

VoIP

Connection flows

CPL Security Up Layer

SIP

CPL Security Low Layer

TCP/UDP/SCTP

SSL/TLS

CPL-SL Protocol Stack on Thesis

HTTP/SOAP

MLP

cpl sl plus mlp
Location Server

GMLC/MPC

CPL-SL Plus MLP

Request (MLP)

Response (MLP)

global positioning systems gps
Global Positioning Systems (GPS)

Total satellites : 24

Total tracks : 3

Data

Data

Data

(經緯度及二度分帶方格座標)

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