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A method and device for avoiding location loss

A positioning aid, GPS positioning technology, applied in the direction of measuring devices, satellite radio beacon positioning systems, instruments, etc., can solve problems such as poor communication, failure to search, loss of navigation signals, etc., to avoid interruption or failure of navigation, avoid The effect of positioning loss

Active Publication Date: 2015-08-12
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) Using AGPS positioning needs to communicate with the location server through the mobile communication network, and download the positioning assistance data from the location server. It is easy to cause signal loss during navigation;
[0005] 2) When existing mobile terminals use AGPS-related location servers, for example: CDMA (CDMA Code Division Multiple Access, Code Division Multiple Access) mobile phones use the positioning assistance provided by PDE (Position Determination Entity, Position Determination Unit) servers Data, UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) mobile phones use the positioning assistance data provided by the SUPL (Secure User Plane Location, Secure User Plane Location) server. When a mobile phone of one network standard enters another network, it will If the AGPS-related location server configured in the mobile phone cannot be searched, the mobile phone cannot communicate with the location server, which may easily cause signal loss in navigation;
[0006] 3) When using AGPS to communicate, Qualcomm's plan is that the mobile terminal will communicate with the location server every five minutes to download the latest current ephemeris, almanac and other positioning assistance data to speed up positioning, but in this case every five minutes If the communication with the location server cannot be carried out smoothly during a communication process, the navigation is prone to signal loss

Method used

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  • A method and device for avoiding location loss
  • A method and device for avoiding location loss
  • A method and device for avoiding location loss

Examples

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no. 1 example

[0043] In the first embodiment of the present invention, a method for avoiding positioning loss, such as figure 1 shown, including the following specific steps:

[0044] Step S101, adding the address of the XTRA server in the configuration file.

[0045] Step S102, when performing GPS positioning, if it is detected that positioning assistance data cannot be obtained from the location server, access the XTRA server based on the XTRA server address in the configuration file and obtain positioning assistance data therefrom for fast positioning.

[0046] Specifically, in step S102, the specific detection event used to determine that the positioning assistance data cannot be obtained from the location server includes at least one of the following:

[0047] Query the current mobile communication network status of the terminal device, and find that the current mobile communication network is in a disconnected state;

[0048] It is detected that the mobile communication network on w...

no. 2 example

[0055] In the second embodiment of the present invention, a device for avoiding positioning loss, such as figure 2 shown, including the following components:

[0056] 1) A configuration module 100, configured to add the address of the XTRA server in the configuration file.

[0057] 2) The detection switching module 200 is used to access the XTRA server based on the XTRA server address in the configuration file and obtain the positioning assistance data from the XTRA server when it is detected that the positioning assistance data cannot be obtained from the location server during GPS positioning, for Rapid positioning.

[0058] Specifically, the detection switching module 200 is used to determine that the specific detection event that the positioning assistance data cannot be obtained from the location server includes at least one of the following:

[0059] Query the current mobile communication network status of the terminal device, and find that the current mobile communic...

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Abstract

The invention provides a method and a device for avoiding location loss. The method includes adding an XTRA server address in a configuration file; accessing the XTRA server and acquiring location auxiliary data from the server for fast location based on the XTRA address in the configuration file under the condition that the device detects that location auxiliary data cannot be obtained from a position server when global position system location is conducted. The device comprises a configuration module and a detection switching module. When the device detects that location communication conducted by adopting the AGPS mode is not smooth, location loss caused by the fact that auxiliary data downloading in the AGPS mode fails is avoided, and navigation interruption or failure is further avoided.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and device for avoiding positioning loss. Background technique [0002] Existing mobile terminals such as mobile phones have introduced AGPS (Assisted Global Positioning System, Assisted Global Positioning System) related location servers in order to speed up the positioning speed of GPS (Global Positioning System, Global Positioning System) and shorten the time for the first positioning. During the satellite search process of the module, the ephemeris, almanac and other positioning auxiliary data of the location server are downloaded through the mobile communication network to speed up the positioning speed; this solution needs to rely on the mobile communication network, and the communication between the mobile terminal and the positioning server also has corresponding requirements. [0003] The existing GPS positioning scheme has the following defects: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/25
CPCG01S19/25
Inventor 董志伟
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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