Method and apparatus for analyzing communication environments and designing networks in consideration of trees

Patent metadata

Field	Value
Publication number	US-2019094196-A1
Application number	US-201816137026-A
Country	US
Kind code	A1
Filing date	Sep 20, 2018
Priority date	Sep 27, 2017
Publication date	Mar 28, 2019
Grant date	—

Abstract

A method for identifying radio signal transmission characteristics in a wireless communication system and an apparatus therefor are provided. The method may include identifying a signal transmission site, identifying a signal reception site, finding an area where a tree is present between the signal transmission site and the signal reception site, checking characteristics of the crown of the tree and characteristics of the trunk of the tree, and examining transmission characteristics of a radio signal sent from the signal transmission site to the signal reception site on the basis of the characteristics of the crown and the trunk. The method and apparatus relate to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for internet of things (IoT), and may be applied to intelligent services based on the 5G communication and the IoT-related technologies.

First claim

What is claimed is:

1 . A method for identifying radio signal transmission characteristics in a wireless communication system, the method comprising:
identifying a signal transmission location; identifying a signal reception location; identifying an area where a tree is present between the signal transmission location and the signal reception location; identifying a characteristic of a crown of the tree and a characteristic of a trunk of the tree; and determining a transmission characteristic of a radio signal sent from the signal transmission location to the signal reception location based on the characteristic of the crown and the characteristic of the trunk.

2 . The method of claim 1 ,
wherein the identifying of the characteristic of the crown and the characteristic of the trunk comprises:
identifying a size of a first region where the crown is located; and
identifying a size of a second region that can affect a radio signal propagation within the first region, and
wherein the transmission characteristic of the radio signal is determined based on a characteristic of the second region.

3 . The method of claim 1 ,
wherein the characteristic of the trunk is determined based on a region where the crown of the tree is located, and wherein the method further comprises:
modeling at least one of the crown or the trunk as a pole with a corresponding size based on the characteristic of the crown and the characteristic of the trunk.

4 . The method of claim 1 , further comprising:
identifying a position of at least one pole located between the signal transmission location and the signal reception location, wherein the determining of the transmission characteristic of the radio signal comprises determining a transmission characteristic of the radio signal transmitted to the reception location by considering an effect of at least one of reflection, diffraction, or scattering occurring at a surface of the pole, and wherein a material of the pole includes at least one of metal, concrete, or wood.

5 . The method of claim 4 , wherein the transmission characteristic of the radio signal is determined in consideration of a propagation effect caused by signal components passing through the pole or being reflected or diffracted at the surface of the pole.

6 . The method of claim 1 ,
wherein the characteristic of the crown is determined based on a material characteristic of leaves of the tree, and wherein the characteristic of the trunk is determined based on a material characteristic of the trunk of the tree.

7 . The method of claim 1 ,
wherein the characteristic of the crown of the tree includes a first thickness of the crown in a direction of signal propagation, wherein the characteristic of the trunk of the tree includes a second thickness of the trunk in the direction of signal propagation, and wherein the transmission characteristic of the radio signal is identified according to a scattering characteristic determined based on at least one of the first thickness or the second thickness.

8 . The method of claim 7 , wherein the scattering characteristic is determined based on a first signal component received directly from the transmission location and a second signal component received through at least one of reflection, transmission, or diffraction caused by at least one object.

9 . The method of claim 1 , further comprising:
finding one or more models corresponding to the shape of the tree; and selecting one of the corresponding models based on the characteristic of the crown and the characteristic of the trunk, wherein the transmission characteristic of the radio signal is determined based on the selected corresponding model.

10 . The method of claim 1 , wherein the characteristic of the crown and the characteristic of the trunk of the tree are identified based on average characteristics of trees existing in an area including the transmission location and the reception location.

11 . A computing device capable of identifying signal transmission characteristics in a wireless communication system, comprising:
a transceiver for transmitting and receiving information; and at least one processor connected with the transceiver and configured to:
identify a signal transmission location,
identify a signal reception location,
identify an area where a tree is present between the signal transmission location and the signal reception location,
identify a characteristic of a crown of the tree and a characteristic of the trunk of the tree, and
determine a transmission characteristic of a radio signal sent from a signal transmission location to the signal reception location based on the characteristic of the crown and the characteristic of the trunk.

12 . The computing device of claim 11 ,
wherein the at least one processor is further configured to:
identify a size of a first region where the crown is located, and
identify a size of a second region that can affect a radio signal propagation within the first region, and
wherein the transmission characteristic of the radio signal is determined based on a characteristic of the second region.

13 . The computing device of claim 11 ,
wherein the characteristic of the trunk is determined based on a region where the crown of the tree is located, and wherein the at least one processor is further configured to model at least one of the crown or the trunk as a pole with a corresponding size based on the characteristic of the crown and the characteristic of the trunk of the tree.

14 . The computing device of claim 11 ,
wherein the at least one processor is further configured to:
identify a position of at least one pole located between the signal transmission location and the signal reception location, and
identify a transmission characteristic of the radio signal transmitted to the reception location by considering an effect of at least one of reflection, diffraction, or scattering occurring at a surface of the pole, and wherein a material of the pole includes at least one of metal, concrete, or wood.

15 . The computing device of claim 14 , wherein the transmission characteristic of the radio signal is determined in consideration of a propagation effect caused by signal components passing through the pole or being reflected or diffracted at the surface of the pole.

16 . The computing device of claim 11 ,
wherein the characteristic of the crown is determined based on a material characteristic of leaves of the tree, and wherein the characteristic of the trunk is determined based on a material characteristic of the trunk of the tree.

17 . The computing device of claim 11 ,
wherein the characteristic of the crown of the tree includes a first thickness of the crown in a direction of signal propagation, wherein the characteristic of the trunk of the tree includes a second thickness of the trunk in the direction of signal propagation, and wherein the transmission characteristic of the radio signal is identified according to a scattering characteristic determined based on at least one of the first thickness or the second thickness.

18 . The computing device of claim 17 , wherein the scattering characteristic is determined based on a first signal component received directly from the transmission location and a second signal component received through at least one of reflection, transmission, or diffraction caused by at least one object.

19 . The computing device of claim 11 ,
wherein the at least one processor is further

Assignees

• Samsung Electronics Co Ltd

Inventors

• Park Jungmin
• Kim Byungchul
• Lee Youngju
• Choi Dongkyu
• Choi Junghwan
• Han Seungku

Classifications

• G01N33/0098 Primary

  Plants or trees (wood G01N33/46) · CPC title

• H04B17/391 Primary

  Modelling the propagation channel · CPC title

• H04B17/101 Primary

  for measurement of specific parameters of the transmitter or components thereof · CPC title

• G01S7/4802

  using analysis of echo signal for target characterisation; Target signature; Target cross-section · CPC title

• H04B17/3912

  Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region · CPC title