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Method and device for updating radio maps

A technology of radio map and equipment, applied in the direction of radio wave measurement system, wireless communication, electrical components, etc.

Active Publication Date: 2017-10-24
HERE GLOBAL BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Additionally, cellular / non-cellular positioning technologies also work indoors, which is often a challenging environment for GNSS-based technologies

Method used

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  • Method and device for updating radio maps
  • Method and device for updating radio maps
  • Method and device for updating radio maps

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Embodiment Construction

[0016] The positioning system can operate in two modes. The first mode is the terminal-assisted mode, in which the terminal performs measurements of cellular and / or non-cellular air interface signals and provides the measurement results to a positioning server hosting a global cellular and / or non-cellular RM database. The server then provides a position estimate back to the terminal. This method is called online positioning and requires the terminal to have data connectivity whenever the positioning service is required.

[0017] The second mode is the terminal-based mode, which is an offline positioning technique in which the terminal has a local copy of the RM, which is called a partial RM. Such a partial RM is a subset of a global RM, for example in the form of a WLAN RM offline file. These files may be in the form of a database or any other form readable by a computer. There can be several such files, since instead of having a single global file it is advantageous to hav...

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Abstract

According to an example embodiment of the present invention, an apparatus includes: a first receiver configured to receive a first partial radio map and a second partial radio map; a processor configured to receive the first partial radio map and the second partial radio map The radio map is compared, and the processor is further configured to determine to replace the first portion of the radio map with the second portion of the radio map based at least in part on a result of the comparison.

Description

technical field [0001] This application is mainly concerned with updating radio maps. Background technique [0002] Modern global cellular and non-cellular positioning techniques are based on the generation of large global databases containing both cellular and non-cellular signals. The information may originate in whole or in part from users of these positioning technologies. This approach can also be called "crowd-sourcing". [0003] The information provided by the user may be in the form of a "fingerprint" containing one or more information based on, for example, received Global Navigation Satellite System (GNSS) satellite signals and signals from cellular and / or non-cellular terrestrial systems. The position is estimated from the measurements obtained by the radio interface. For example, a location may include an area surrounding a geographic location. In the case of measurements on cellular signals, the measurement results may include global and / or local identities ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/02
CPCH04W64/003G01S5/02526
Inventor 劳里·维罗拉劳拉·维罗拉亚里·叙耶林内米科·布洛姆奎斯特
Owner HERE GLOBAL BV