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Predictive measurement for non-terrestrial communication

A non-terrestrial, measurement reporting technology, used in wireless communication, sustainable communication technology, advanced technology, etc.

Active Publication Date: 2020-10-23
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 measurement for non-terrestrial communication
  • Predictive measurement for non-terrestrial communication
  • Predictive measurement for non-terrestrial communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0087] 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 the index m iterates over the same orbit (Orbit n ) on satellites. for example, figure 1 Two typical distances for LEO satellites are listed in : the altitude at which the satellite is above the ground (781km) and the typical distance at which the satellite becomes visible from a ground-based point usually about 10° above the horizon (2050km).

[0088] 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 varies significantly within these nine minutes in an essentially predictable manner.

[0089] figure 2 is shown with two orbitals (Orbit n and Orbit n+1 ), where the index n iterates over all orbits, a satelli...

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PUM

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Abstract

The present invention provides a method of operating a user equipment (UE) device in communication with a non-terrestrial communication system comprising a plurality of transmission points, the methodcomprising in the UE device triggering a transmission of a measurement report dependent on 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 with a threshold (2), the threshold varying according to a predetermined function dependent on an expected position of the UE device withrespect to the transmission point.

Description

technical field [0001] The invention relates to the triggering of measurement reports in non-terrestrial communication systems, such as satellite communication systems. Background technique [0002] Satellite communication systems or satellite telephone systems are well known. An example is the Iridium Telephone and Data Communications System. [0003] Iridium uses low earth orbit (LEO: lowEarth orbit) satellites with six orbits and 11 satellites for each orbit. The satellites have an altitude of 781 km and an orbital period of about 100 minutes, which results in a time between two adjacent satellites on the same orbit passing the same point above the ground to be about nine minutes. [0004] Currently, a next-generation mobile communication standard (5G) is defined by 3GPP. It will define the network architecture for the core network (5GC) and the new radio access network (NR). Additionally, access from non-3GPP access networks to 5GC is provided. For the general detai...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04W36/30H04W84/06H04W36/00
CPCH04W36/0058H04W36/0085H04W84/06H04B7/18541H04W36/302H04B7/18504H04B7/18508H04B7/1851H04B7/18513H04W24/10H04W64/00H04W36/30
Inventor A·施密特M·汉斯M·别纳斯
Owner IPCOM GMBH & CO KG