Granted Patent B2

US 11,064,444 · App. 16/383,718 · Granted Jul 13, 2021

Inventors: Khalid W. Al-Mufti (Sterling, VA); Navin Srinivasan (Fairfax, VA); Ariful Hannan (Sterling, VA)

Assignee: CommScope Technologies LLC

H04W52/243H04B7/0632H04B7/0639H04W52/365H04W52/386H04W52/52

Abstract

Claims (101)

1. A method, comprising:

selecting a new protection point in a dynamic protection area;

creating an initial sort list of radios;

determining look angles around the new protection point;

determining which look angle includes most radios in a main beam, of an antenna radiation pattern, in the look angle;

determining a modified sort list and an initial move list for the determined look angle;

determining a certain percentile of aggregate interference power spectral density at the new protection point for radios that are in a main beam in each of remaining look angles;

sorting, by level of the certain percentile of aggregate interference power spectral density, the remaining look angles; and

generating a move list of radios.

2. The method of claim 1 , wherein determining the look angles around the new protection point comprises determining look angles around the new protection point having radios within a main beam, of a radiation pattern, in each of such look angles.

3. The method of claim 1 , further comprising determining a mean and a standard deviation of each interference power spectral density of each radio at the new protection point utilizing an antenna gain of zero decibels for a receiver in the dynamic protection area.

4. The method of claim 1 , wherein determining the modified sort list and the initial move list for the determined look angle comprises:

for each radio in the main beam of the determined look angle and in the initial sort list, determining a mean and a standard deviation of an interference power spectral density utilizing an antenna main beam gain of a receiver in the dynamic protection area;

determining the certain percentile of the aggregate interference power spectral density at the new protection point using:

(a) for each radio in the main beam of the determined look angle and in the initial sort list, the mean and the standard deviation of the interference power spectral density utilizing an antenna main beam gain of the receiver in the dynamic protection area; and

(b) for each radio in the initial sort list and not in the main beam of the determined look angle, the mean and the standard deviation of the interference power spectral density utilizing an antenna gain of zero decibels for the receiver in the dynamic protection area;

determining if the determined certain percentile of the aggregate interference power spectral density is below a threshold level;

if the determined certain percentile of the aggregate interference power spectral density is below the threshold level, then save the modified sort list and the initial move list; and

if the determined certain percentile of the aggregate interference power spectral density is not below the threshold level, then removing a radio at a top of a current sort list.

5. The method of claim 1 , wherein generating the move list of the radios comprises:

selecting a first look angle in sorted remaining look angles, where the first angle has a highest certain percentile of aggregate interference power spectral density of radios in the main beam of each look angle;

for the selected first look angle and for radios in the modified sort list, determining a certain percentile of aggregate interference power spectral density at the new protection point using mean and standard deviation of interference power spectral density utilizing antenna main beam gain, of a receiver in the dynamic protection area, for radios in the main beam of the selected first look angle, and zero dB antenna gain mean and standard deviation of interference power spectral density for radios not in the main beam of the selected first look angle;

determining if the determined certain percentile of the aggregate interference power spectral density is below a threshold level;

if the determined certain percentile of the aggregate interference power spectral density is not below the threshold level, then remove a radio at a top of the modified sort list;

if the determined certain percentile of the aggregate interference power spectral density is below the threshold level, then determining if a current move list is empty;

if the current move list is empty, then saving a current initial move list as the move list; and

if the current move list is not empty, then:

creating a new initial move list by appending the current initial move list to the initial move list;

generating a new modified sort list; and

removing the selected first look angle from the sorted remaining look angles.

6. The method of claim 1 , wherein creating an initial sort list of radios comprises selecting radios within a neighborhood distance from the new protection point.

7. The method of claim 1 , wherein the certain percentile is a 95 th percentile.

8. A non-transitory computer readable medium storing a program causing a computer to perform a method, the method comprising:

selecting a new protection point in a dynamic protection area;

creating an initial sort list of radios;

determining look angles around the new protection point;

determining which look angle includes most radios in a main beam, of an antenna radiation pattern, in the look angle;

determining a modified sort list and an initial move list for the determined look angle;

determining a certain percentile of aggregate interference power spectral density at the new protection point for radios that are in a main beam in each remaining look angle;

sorting, by level of certain percentile of aggregate interference power spectral density, the remaining look angles; and

generating a move list of radios.

9. The non-transitory computer readable medium of claim 8 , wherein determining the look angles around the new protection point comprises determining look angles around the new protection point having radios within a main beam, of a radiation pattern, in each of such look angles.

10. The non-transitory computer readable medium of claim 8 , wherein the certain percentile is a 95 th percentile.

11. The non-transitory computer readable medium of claim 8 , further comprising determining a mean and a standard deviation of each interference power spectral density of each radio at the new protection point utilizing an antenna gain of zero decibels for a receiver in the dynamic protection area.

12. The non-transitory computer readable medium of claim 8 , wherein determining the modified sort list and the initial move list for the determined look angle comprises:

for each radio in the main beam of the determined look angle and in the initial sort list, determining a mean and a standard deviation of an interference power spectral density utilizing an antenna main beam gain of a receiver in the dynamic protection area;

determining the certain percentile of the aggregate interference power spectral density at the new protection point using:

(a) for each radio in the main beam of the determined look angle and in the initial sort list, the mean and the standard deviation of the interference power spectral density utilizing an antenna main beam gain of the receiver in the dynamic protection area; and

(b) for each radio in the initial sort list and not in the main beam of the determined look angle, the mean and the standard deviation of the interference power spectral density utilizing an antenna gain of zero for the receiver in the dynamic protection area;

determining if the determined certain percentile of the aggregate interference power spectral density is below a threshold level;

if the determined certain percentile of the aggregate interference power spectral density is below the threshold level, then save the modified sort list and the initial move list; and

if the determined certain percentile of the aggregate interference power spectral density is not below the threshold level, then removing a radio at a top of a current sort list.

13. The non-transitory computer readable medium of claim 8 , wherein generating the move list of the radios comprises:

selecting a first look angle in sorted remaining look angles, where the first angle has a highest certain percentile of aggregate interference power spectral density of radios in the main beam of each look angle;

for the selected first look angle and for radios in the modified sort list, determining a certain percentile of aggregate interference power spectral density at the new protection point using mean and standard deviation of interference power spectral density utilizing antenna main beam gain, of a receiver in the dynamic protection area, for radios in the main beam of the selected first look angle, and zero decibel antenna gain mean and standard deviation of interference power spectral density for radios not in the main beam of the selected first look angle;

determining if the determined certain percentile of the aggregate interference power spectral density is below a threshold level;

if the determined certain percentile of the aggregate interference power spectral density is not below the threshold level, then remove a radio at a top of the modified sort list;

if the determined certain percentile of the aggregate interference power spectral density is below the threshold level, then determining if a current move list is empty;

if the current move list is empty, then saving a current initial move list as the move list; and

if the current move list is not empty, then:

creating a new initial move list by appending the current initial move list to the initial move list;

generating a new modified sort list; and

removing the selected first look angle from the sorted remaining look angles.

14. The non-transitory computer readable medium of claim 8 , wherein creating an initial sort list of radios comprises selecting radios within a neighborhood distance from the new protection point.

15. A system, comprising:

a spectrum access system comprising processing circuitry coupled to a communications system;

at least one radio coupled to the communications system;

wherein the processing circuitry is configured to:

select a new protection point in a dynamic protection area;

create an initial sort list of radios;

determine look angles around the new protection point;

determine which look angle includes most radios in a main beam, of an antenna radiation pattern, in the look angle;

determine a modified sort list and an initial move list for the determined look angle;

determine a certain percentile of aggregate interference power spectral density at the new protection point for radios that are in a main beam in each remaining look angle;

sort, by level of certain percentile of aggregate interference power spectral density, the remaining look angles; and

generate a move list of radios.

16. The system of claim 15 , wherein the certain percentile is a 95 th percentile.

17. The system of claim 15 , wherein determine the look angles around the new protection point comprises determine look angles around the new protection point having radios within a main beam of a radiation pattern, in each of such look angles.

18. The system of claim 15 , wherein the processing circuitry is further configured to determine a mean and a standard deviation of each interference power spectral density of each radio at the new protection point utilizing an antenna gain of zero decibels for a receiver in the dynamic protection area.

19. The system of claim 15 , wherein determine the modified sort list and the initial move list for the determined look angle comprises:

for each radio in the main beam of the determined look angle and in the initial sort list, determine a mean and a standard deviation of an interference power spectral density utilizing an antenna main beam gain of a receiver in the dynamic protection area;

determine the certain percentile of the aggregate interference power spectral density at the new protection point using:

(a) for each radio in the main beam of the determined look angle and in the initial sort list, the mean and the standard deviation of the interference power spectral density utilizing an antenna main beam gain of the receiver in the dynamic protection area; and

(b) for each radio in the initial sort list and not in the main beam of the determined look angle, the mean and the standard deviation of the interference power spectral density utilizing an antenna gain of zero decibel for the receiver in the dynamic protection area;

determine if the determined certain percentile of the aggregate interference power spectral density is below a threshold level;

if the determined certain percentile of the aggregate interference power spectral density is below the threshold level, then save the modified sort list and the initial move list; and

if the determined certain percentile of the aggregate interference power spectral is not below the threshold level, then removing a radio at a top of a current sort list.

20. The system of claim 15 , wherein generate the move list of the radios comprises:

select a first look angle in sorted remaining look angles, where the first angle has a highest certain percentile of aggregate interference power spectral density of radios in the main beam of each look angle;

for the selected first look angle and for radios in the modified sort list, determine a certain percentile of aggregate interference power spectral density at the new protection point using mean and standard deviation of interference power spectral density utilizing antenna main beam gain, of a receiver in the dynamic protection area, for radios in the main beam of the selected first look angle, and zero decibel antenna gain mean and standard deviation of interference power spectral density for radios not in the main beam of the selected first look angle;

determine if the determined certain percentile of the aggregate interference power spectral density is below a threshold level;

if the determined certain percentile of the aggregate interference power spectral density is not below the threshold level, then remove a radio at a top of the modified sort list;

if the determined certain percentile of the aggregate interference power spectral density is below the threshold level, then determine if a current move list is empty;

if the current move list is empty, then save a current initial move list as the move list; and

if the current move list is not empty, then:

create a new initial move list by appending the current initial move list to the initial move list;

generate a new modified sort list; and

remove the selected first look angle from the sorted remaining look angles.

21. The system of claim 15 , wherein create an initial sort list of radios comprises select radios within a neighborhood distance from the new protection point.

22. The system of claim 15 , wherein the processing circuitry comprises a shared access system management system and a user database.

23. The system of claim 15 , wherein at least one of an environmental sensing capability system, at least one external database, and at least one other spectrum access system is coupled to the communications system.

Assignments (16)

Continuity (2)