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Terminal status discovery in secure user plane location positioning procedure

A user and mobile terminal technology, applied in the SUPL field, can solve problems such as the loss of synchronization of status information, and achieve the effect of reducing response time and saving processing power

Inactive Publication Date: 2009-02-04
NOKIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if, for example, the terminal's battery power is exhausted or it is out of wireless coverage, the state information immediately loses synchronization with the SLP
Also, it is not possible to require the terminal to establish a session with the SLP upon detachment and power down

Method used

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  • Terminal status discovery in secure user plane location positioning procedure
  • Terminal status discovery in secure user plane location positioning procedure
  • Terminal status discovery in secure user plane location positioning procedure

Examples

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Embodiment Construction

[0025] Figure 1 shows a network-initiated SUPL session in a SUPL architecture. The SUPL Location Platform (SLP) 10 includes a SUPL Location Center (SLC) (not shown) and a SUPL Location Center (not shown). SLC and SPC can be integrated into a single system. The SLC system coordinates the operation of the SUPLs in the network and manages the SPCs. The SPC supplies GPS (Global Positioning System) assistance data to the SET 30 and performs a function of calculating the position of the SET 30 .

[0026] The SET 30 supports the procedures defined by SUPL when it interacts with the network through the user plane (eg TCP / IP (Transmission Control Protocol / Internet Protocol) over GPRS). The SET 30 supports SET-based and / or SET-assisted positioning calculations.

[0027] SLP 10 initiates a SUPL session with SET 30 using the SUPL INIT message. This message is used in network-initiated SUPL services. This message may contain the initial target SET user notification, confirmation privat...

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Abstract

When receiving a location request for a mobile terminal, the status of the mobile terminal is discovered before initiating a SUPL positioning procedure. For this purpose, status information is retrieved from a database or location register outside SUPL and it is determined from the status information whether a SUPL session can be established with the mobile terminal.

Description

technical field [0001] The present invention relates to SUPL (Secure User Plane Location) specified in OMA (Open Mobile Alliance). Specifically, the present invention relates to a network-initiated SUPL positioning procedure. Background technique [0002] Location-based services based on the location of mobile devices are becoming more widespread. SUPL adopts user plane data bearer to transmit location information and carry positioning technology-related protocols between SUPL-supporting terminals (SET) and SUPL location platform (SLP) in the network. SUPL is considered to be an effective way to transfer the location information needed to calculate the location of the target SET. In order to provide location information to clients, considerable signaling and location information needs to be transferred between parties such as SETs and location servers. The location server is a node in the OMA architecture, which includes the SLP (SUPL Location Platform). SUPL requires on...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04W8/08H04W8/10H04W8/22H04W64/00
CPCH04W8/10H04W8/08H04W8/22H04W64/00
Inventor S·克罗夫维林
Owner NOKIA CORP
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