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Location Inter-operability Forum Mobile Location Protocol (MLP)

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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Location Inter-operability Forum Mobile Location Protocol (MLP)

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  1. Location Inter-operability ForumMobile Location Protocol (MLP) Reporter : Allen

  2. Outline • Introduction • MLP Overview • MLP Structure • MLP Basic services & Message Flow • Thesis Modification Plan

  3. 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

  4. 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

  5. MLP Overview • MLP serves as the interface between a Location Server and a Location Services (LCS) Client

  6. MLP Structure 3GPP

  7. 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

  8. 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

  9. LCS Client Location Server Standard Location Immediate Request Standard Location Immediate Answer Standard Location Immediate Report If needed SLIS Message Flow

  10. 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

  11. LCS Client Location Server Emergency Location Immediate Request Emergency Location Immediate Answer ELIS Message Flow

  12. 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

  13. LCS Client Location Server Standard Location Report SLRS Message Flow

  14. 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

  15. LCS Client Location Server Emergency Location Report ELRS Message Flow

  16. 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

  17. 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

  18. 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

  19. Location Server GMLC/MPC CPL-SL Plus MLP Request (MLP) Response (MLP)

  20. 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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