IP Library › Granted Patent US 12,328,604
Granted Patent B2
US 12,328,604 · App. 17/656,635 · Granted Jun 10, 2025

Utilizing invariant shadow fading data for training a machine learning model

Inventors: Howard John Thomas (Stonehouse, GB); Christopher Michael Murphy (Bath, GB); Kexuan Sun (Stevenage, GB); Agustin Pozuelo (County Dublin, IE); Baruch Friedman (Dublin, IE); Takai Eddine Kennouche (Meylan, FR)
Assignee: VIAVI Solutions Inc.
H04W24/02G06N5/022H04W16/22H04W24/08
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,328,604
App. No.
17/656,635
Granted
Jun 10, 2025
Kind
B2
Abstract

A device may receive real mobile radio data identifying measurements of radio transmissions of base stations and user devices of a mobile radio environment in a geographical area, and may receive network topology data associated with the geographical area. The device may utilize, based on the network topology data, a machine learning feature extraction approach to generate a representation of invariant aspects of spatiotemporal predictable components of the real mobile radio data, and may generate, based on the representation of invariant aspects, stochastic data that includes a probability that a radio signal will be obstructed. The device may utilize the stochastic data to identify a realistic discoverable spatiotemporal signature, and may train or evaluate a system to manage performance of a mobile radio network based on the realistic discoverable spatiotemporal signature.

Claims (81)

1. A method, comprising:

receiving, by a device, real mobile radio data identifying measurements of radio transmissions of base stations and user devices of a mobile radio environment in a geographical area;

receiving, by the device, network topology data associated with the geographical area;

utilizing, by the device and based on the network topology data, a machine learning feature extraction approach to generate a representation of invariant aspects of spatiotemporal predictable components of the real mobile radio data;

generating, by the device and based on the representation of invariant aspects, stochastic data that includes a probability that a radio signal will experience fading;

utilizing, by the device, the stochastic data to identify a realistic discoverable spatiotemporal signature;

training or evaluating, by the device, a system to manage performance of a mobile radio network based on the realistic discoverable spatiotemporal signature;

generating a validation dataset for the system based on the realistic discoverable spatiotemporal signature; and

validating the system with the validation dataset.

2. The method of claim 1 , further comprising:

utilizing a statistical analysis approach to identify a shadow decorrelation distance and a shadow standard deviation of the real mobile radio data,

wherein utilizing the machine learning feature extraction approach to generate the representation of invariant aspects includes:

generating the representation of invariant aspects based on the shadow decorrelation distance and the shadow standard deviation of the real mobile radio data.

3. The method of claim 1 , further comprising:

utilizing a statistical analysis approach to identify a shadow decorrelation distance and a shadow standard deviation relating to another geographical area,

wherein utilizing the machine learning feature extraction approach to generate the representation of invariant aspects includes:

generating another representation of invariant aspects based on the shadow decorrelation distance and the shadow standard deviation relating to the other geographical area,

wherein the other representation of the invariant aspects of spatiotemporal predictable components of the real mobile radio data of the geographical area is used as an input to the machine learning feature extraction approach.

4. The method of claim 1 , further comprising:

generating a test dataset for the system based on the realistic discoverable spatiotemporal signature; and

testing the system with the test dataset.

5. The method of claim 1 , further comprising:

training a machine learning model with the realistic discoverable spatiotemporal signature to generate a trained machine learning model; and

causing the trained machine learning model to be implemented by an element collocated with a network device associated with the mobile radio environment,

wherein the element is configured to utilize the trained machine learning model to identify shadow fading features in a coverage area of the network device.

6. The method of claim 1 , wherein the real mobile radio data includes a composite waveform with a slow fading component caused by permanent obstructions, a slow fading component caused by temporal obstructions, and a fast fading component.

7. The method of claim 1 , wherein the network topology data includes obstruction data identifying permanent obstructions in the geographical area and temporal obstructions in the geographical area.

8. A device, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to:

receive real mobile radio data identifying measurements of radio transmissions of base stations and user devices of a mobile radio environment in a geographical area;

receive network topology data associated with the geographical area;

utilize, based on the network topology data, a machine learning feature extraction approach to generate a representation of invariant aspects of spatiotemporal predictable components of the real mobile radio data;

generate, based on the representation of invariant aspects, stochastic data that includes a probability that a radio signal will experience fading;

utilize the stochastic data to identify a realistic discoverable spatiotemporal signature;

train or evaluate a system to manage performance of a mobile radio network based on the realistic discoverable spatiotemporal signature;

generate a validation dataset for the system based on the realistic discoverable spatiotemporal signature; and

validate the system with the validation dataset.

9. The device of claim 8 , wherein the one or more processors are further configured to:

utilize a statistical analysis approach to identify a shadow decorrelation distance and a shadow standard deviation relating to another geographical area; and

generate another representation of invariant aspects based on the shadow decorrelation distance and the shadow standard deviation relating to the other geographical area,

wherein the other representation of the invariant aspects of spatiotemporal predictable components of the real mobile radio data of the geographical area is used as an input to the machine learning feature extraction approach.

10. The device of claim 8 , wherein the one or more processors are further configured to:

generate a test dataset for the system based on the realistic discoverable spatiotemporal signature; and

test the system with the test dataset.

11. The device of claim 8 , wherein the one or more processors are further configured to:

train a machine learning model with the realistic discoverable spatiotemporal signature to generate a trained machine learning model; and

cause the trained machine learning model to be implemented by an element collocated with a network device associated with the mobile radio environment,

wherein the element is configured to utilize the trained machine learning model to identify shadow fading features in a coverage area of the network device.

12. The device of claim 8 , wherein the real mobile radio data includes a composite waveform with a slow fading component caused by permanent obstructions, a slow fading component caused by temporal obstructions, and a fast fading component.

13. The device of claim 8 , wherein the network topology data includes obstruction data identifying permanent obstructions in the geographical area and temporal obstructions in the geographical area.

14. The device of claim 8 , wherein the one or more processors are further configured to:

utilize a statistical analysis approach to identify a shadow decorrelation distance and a shadow standard deviation of the real mobile radio data,

wherein the one or more processors, to generate the representation of invariant aspects, are configured to:

generate the representation of invariant aspects based on the shadow decorrelation distance and the shadow standard deviation of the real mobile radio data.

15. A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a device, cause the device to:

receive real mobile radio data identifying measurements of radio transmissions of base stations and user devices of a mobile radio environment in a geographical area;

receive network topology data associated with the geographical area;

utilize, based on the network topology data, a machine learning feature extraction approach to generate a representation of invariant aspects of spatiotemporal predictable components of the real mobile radio data;

generate, based on the representation of invariant aspects, stochastic data that includes a probability that a radio signal will experience fading;

utilize the stochastic data to identify a realistic discoverable spatiotemporal signature;

train or evaluate a system to manage performance of a mobile radio network based on the realistic discoverable spatiotemporal signature;

generate a validation dataset for the system based on the realistic discoverable spatiotemporal signature; and

validate the system with the validation dataset.

16. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions further cause the device to:

utilize a statistical analysis approach to identify a shadow decorrelation distance and a shadow standard deviation relating to another geographical area; and

generate another representation of invariant aspects based on the shadow decorrelation distance and the shadow standard deviation relating to the other geographical area,

wherein the other representation of the invariant aspects of spatiotemporal predictable components of the real mobile radio data of the geographical area is used as an input to the machine learning feature extraction approach.

17. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions further cause the device to:

generate a test dataset for the system based on the realistic discoverable spatiotemporal signature; and

test the system with the test dataset.

18. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions further cause the device to:

train a machine learning model with the realistic discoverable spatiotemporal signature to generate a trained machine learning model; and

cause the trained machine learning model to be implemented by an element collocated with a network device associated with the mobile radio environment,

wherein the element is configured to utilize the trained machine learning model to identify shadow fading features in a coverage area of the network device.

19. The non-transitory computer-readable medium of claim 15 , wherein the real mobile radio data includes a composite waveform with a slow fading component caused by permanent obstructions, a slow fading component caused by temporal obstructions, and a fast fading component.

20. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions further cause the device to:

utilize a statistical analysis approach to identify a shadow decorrelation distance and a shadow standard deviation of the real mobile radio data,

wherein the one or more instructions, that cause the device to generate the representation of invariant aspects, cause the device to:

generate the representation of invariant aspects based on the shadow decorrelation distance and the shadow standard deviation of the real mobile radio data.

Assignments (4)
RELEASE OF SECURITY INTEREST AT REEL/FRAME 73189/0873 Recorded May 28, 2026
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: INERTIAL LABS, INC.; VIAVI SOLUTIONS INC.; VIAVI SOLUTIONS LICENSING LLC
Reel/Frame 075642/0381 →
SECURITY INTEREST Recorded Nov 14, 2025
From: VIAVI SOLUTIONS INC.; VIAVI SOLUTIONS LICENSING LLC; INERTIAL LABS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 073571/0137 →
SECURITY AGREEMENT Recorded Oct 21, 2025
From: INERTIAL LABS, INC.; VIAVI SOLUTIONS INC.; VIAVI SOLUTIONS LICENSING LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 073189/0873 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2022
From: THOMAS, HOWARD JOHN; MURPHY, CHRISTOPHER MICHAEL; SUN, KEXUAN; POZUELO, AGUSTIN; FRIEDMAN, BARUCH; KENNOUCHE, TAKAI EDDINE
To: VIAVI SOLUTIONS INC.
Reel/Frame 059445/0566 →
Continuity (1)
Related Publication 20230308900A1 · Sep 28, 2023
References Cited (14)
US 8913552B2 · Agrawal · 2014 [cited by examiner]
US 11128391B1 · Aldossari et al. · 2021 [cited by applicant]
US 20060104253A1 · Douglas · 2006 [cited by examiner]
US 20130100878A1 · Chen · 2013 [cited by examiner]
US 20160099770A1 · Glottmann · 2016 [cited by examiner]
US 20200343985A1 · O'Shea et al. · 2020 [cited by applicant]
US 20210256407A1 · Therani · 2021 [cited by examiner]
US 20230180002A1 · Hwang · 2023 [cited by examiner]
CN 112543471A · 2021 [cited by applicant]
Kleinmeier et al., “Vadere: An open-source simulation framework to promote interdisciplinary understanding,” Technical University of Munich, Department of Informatics, Jul. 16, 2019, 18 Pages. [cited by applicant]
Aldossari, S., et al., “Predicting the Path Loss of Wireless Channel Models Using Machine Learning Techniques in MmWave Urban Communications,” International Symposium on Wireless Personal Multimedia Communications, Nov.… [cited by applicant]
Extended European Search Report for Application No. EP23163872.7, mailed Aug. 28, 2023, 19 Pages. [cited by applicant]
Glazunov, A.A., et al., “Decorrelation Distance Characterization of Long Term Fading of Cw Mimo Channels in Urban Multicell Environment,” International Conference on Applied Electromagnetics and Communications, Jan. 1, … [cited by applicant]
Patzold, M., et al., “Design of Measurement-based Correlation Models for Shadow Fading,” International Conference on International Conference on Advanced Technologies for Communications, Oct. 20, 2010, pp. 112-117. [cited by applicant]