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Methods and apparatuses for reduction of interference during positioning measurements

A positioning measurement and user equipment technology, applied in transmission monitoring, power management, electrical components, etc., can solve problems such as inability to correctly decode signals, negative impact on listenability, etc., to achieve easy detection and increase positioning measurement Performance and Accuracy, Power Consumption and Complexity Reduction Effects

Active Publication Date: 2012-07-04
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] As explained above, if there is a strong interferer other than the serving cell, the listenability will be negatively affected and the UE may not be able to correctly decode signals from neighboring cells in order to perform positioning measurements

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  • Methods and apparatuses for reduction of interference during positioning measurements
  • Methods and apparatuses for reduction of interference during positioning measurements
  • Methods and apparatuses for reduction of interference during positioning measurements

Examples

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Embodiment Construction

[0057] According to the embodiments described below, the wireless communication system / network can temporarily reduce the transmission activity of one or more interfering cells that may be different from the serving cell in order to assist individual user equipment or a group of user equipment to perform positioning measurements with sufficient accuracy. This requires communication and signaling between radio network nodes, which will be explained in more detail below.

[0058] Reducing the transmission activity of, for example, a downlink signal may mean, for example, not transmitting or reducing the power of one or more positioning reference signals (PRS) in a specified resource block (RB) set or a positioning subframe over the entire RB set. It is also possible to reduce transmission activity only for certain downlink channels, such as only broadcast channels. Thus, in one embodiment, a method in a radio network node or in a network node is provided, including determining one ...

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Abstract

The exemplary embodiments of the present invention relate to methods and apparatuses enabling reduction of interference in a wireless system in order to assist a user equipment in performing positioning measurements. According to exemplary embodiments of the present invention, a radio network node is configured to: receive a measurement report from the UE comprising signal quality measurements related to interfering cells; to select a set of most interfering cells and to determine a level of reduction of transmission activity to be executed at specific time for a determined duration.

Description

Technical field [0001] The present invention relates to a method and arrangement for positioning in a wireless communication network. Specifically, it relates to interference coordination for location positioning and location-based services. Background technique [0002] User positioning or identification of the geographic location of user equipment (UE) has been widely used by various services. Some services (such as emergency calls) are non-commercial and are required by the supervisory authority, which may also impose accuracy requirements on the service. An example of this is the Federal Communications Commission (FCC) in the United States; see FCC 99-245, "Revision of Commission Rules to Ensure Compatibility with the Enhanced 911 Emergency Call System." [0003] In many environments, the location of the UE can be accurately estimated by using a positioning method based on the Global Positioning System (GPS). However, GPS-based positioning may often have unsatisfactory perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24
CPCH04W84/042H04W64/00H04B17/0077H04B17/382H04W24/08
Inventor M·卡兹米I·西奥米纳
Owner TELEFON AB LM ERICSSON (PUBL)