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Predictive measurements for non-terrestrial communications

A non-terrestrial, communication system technology, applied in the field of prediction and measurement for non-terrestrial communication

Pending Publication Date: 2022-08-05
IPCOM GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, it is unknown to provide any means to deal with efficient measurement and reporting mechanisms for scheduled periodic link changes

Method used

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  • Predictive measurements for non-terrestrial communications
  • Predictive measurements for non-terrestrial communications
  • Predictive measurements for non-terrestrial communications

Examples

Experimental program
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Embodiment Construction

[0086] figure 1 An example radio access network based on LEO satellites is shown. The figure depicts two satellites (SAT n,m and SAT n,m+1 ), where index m iterates over the same orbit (Orbit n ) on the satellite. for example, figure 1 Two typical distances for LEO satellites are listed in : the altitude of the satellite above the ground (781 km) and the typical distance of the satellite (2050 km) where the ground-based point becomes visible, typically about 10° above the horizon.

[0087] In the example setup, the time between when a satellite appears on the horizon and when the same satellite disappears on the other side is nine minutes. from figure 1 It is evident that the path loss and delay of the link between the ground-based UE and the satellite changes significantly during these nine minutes in an inherently predictable manner.

[0088] figure 2 shown with two orbitals (Orbit n and Orbit n+1 ), where index n iterates over all orbits, the satellite radio acce...

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PUM

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Abstract

The present invention provides a method of operating a user equipment (UE) device communicating with a non-terrestrial communication system comprising a plurality of transmission points, the method comprising, in the UE device, triggering transmission of a measurement report in accordance with a measurement by the UE device of a received signal parameter (1) of a signal received from a transmission point of the system and a comparison of the measured parameter to a threshold value (2), the threshold varies according to a predetermined function dependent on an expected position of the UE device relative to the transmission point.

Description

[0001] This application is a divisional application for an invention patent application with an application date of March 8, 2019, an application number of 201980017887.6 (PCT / EP2019 / 055863), and an invention title of "predictive measurement for non-terrestrial communications". technical field [0002] The present invention relates to the triggering of measurement reports in non-terrestrial communication systems, such as satellite communication systems. Background technique [0003] Satellite communication systems or satellite telephone systems are well known. An example is the Iridium phone and data communications system. [0004] Iridium uses low Earth orbit (LEO: low Earth orbit) satellites with six orbits and 11 satellites for each orbit. The satellite has an altitude of 781 km and an orbital period of about 100 minutes, which results in a time between two adjacent satellites in the same orbit passing the same point above the ground of about nine minutes. [0005] Curr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/30H04W84/06H04B7/185
CPCH04W36/0058H04W36/0085H04W36/30H04W84/06H04B7/18541H04B7/18504H04B7/18508H04B7/1851H04B7/18513H04W24/10H04W64/00
Inventor A·施密特M·汉斯M·别纳斯
Owner IPCOM GMBH & CO KG