IP Library Granted Patent US 9,392,477
Granted Patent B2
US 9,392,477 · App. 13/918,743 · Granted Jul 12, 2016

Neighbor cell interference estimation

Inventors: Eamonn Gormley (Bothell, WA); Adrian Yip (Bothell, WA)
Assignee: Nokia Solutions and Networks OY
H04W24/08H04W36/0061H04W72/082H04W72/08
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Quick Facts
Patent No.
US 9,392,477
App. No.
13/918,743
Granted
Jul 12, 2016
Kind
B2
Abstract

A system for estimating interference on a cellular network includes a processor and a non-transitory computer readable medium with computer executable instructions stored thereon. The computer executable instructions perform the following method when executed by the processor: causing the processor to receive from a user equipment, first information indicating a strength of a signal received at the user equipment from an interfering base station; causing the processor to receive second information indicating an airlink utilization of the interfering base station; and causing the processor to process the first information and the second information according to an estimation function to produce an interference estimate.

Claims (47)

1. A system for estimating interference on a cellular network, the system comprising:

a processor; and

a non-transitory computer readable medium with computer executable instructions stored thereon which, when executed by the processor, perform the following method:

causing the processor to receive from a user equipment, first information indicating a strength of a signal received at the user equipment from an interfering base station;

causing the processor to receive second information indicating an airlink utilization of the interfering base station; and

causing the processor to process the first information and the second information according to an estimation function to produce an interference estimate,

wherein the airlink utilization is a percentage of resources that the interfering base station uses over a predetermined time period of one second or less.

2. The system of claim 1 , wherein the processor is located in a serving base station of the user equipment.

3. The system of claim 1 , wherein:

the processor is located in the user equipment; and

the method further comprises causing the processor to communicate the interference estimate to a serving base station of the user equipment.

4. The system of claim 1 , wherein:

the processor is located in a network resource controller; and

the method further comprises causing the processor to communicate the interference estimate to a serving base station of the user equipment.

5. The system of claim 1 , wherein the second information is received from a network resource controller.

6. The system of claim 1 , wherein the second information is received from the interfering base station.

7. The system of claim 1 , wherein the processor is caused to process the first information and the second information to produce the interference estimate, further based upon a mapping function.

8. The system of claim 1 , wherein the first information includes an RSRP (Reference Signal Received Power) value.

9. A method for estimating interference, the method comprising:

receiving from a user equipment, first information indicating a strength of a signal received at the user equipment from an interfering base station;

receiving second information indicating an airlink utilization of the interfering base station; and

processing the first information and the second information according to an estimation function to produce an interference estimate,

wherein the airlink utilization is a percentage of resources that the interfering base station uses over a predetermined time period of one second or less.

10. The method of claim 9 , wherein the interference estimate is produced in a serving base station of the user equipment.

11. The method of claim 9 , wherein:

the interference estimate is produced in the user equipment; and

the method further comprises causing the user equipment to communicate the interference estimate to a serving base station of the user equipment.

12. The method of claim 9 , wherein:

the interference estimate is produced in a network resource controller; and

the method further comprises causing the network resource controller to communicate the interference estimate to a serving base station of the user equipment.

13. The method of claim 9 , wherein the second information is received from a network resource controller.

14. The method of claim 9 , wherein the second information is received from the interfering base station.

15. The method of claim 9 , wherein processing the first information and the second information to produce the interference estimate is further based upon a mapping function.

16. A non-transitory computer readable medium with computer executable instructions stored thereon which, when executed by the processor, perform the following method:

receiving from a user equipment, first information indicating a strength of a signal received at the user equipment from an interfering base station;

receiving second information indicating an airlink utilization of the interfering base station; and

processing the first information and the second information according to an estimation function to produce an interference estimate,

wherein the airlink utilization is a percentage of resources that the interfering base station uses over a predetermined time period of one second or less.

17. The non-transitory computer readable medium of claim 16 , wherein the interference estimate is produced in a serving base station of the user equipment.

18. The non-transitory computer readable medium of claim 16 , wherein:

the interference estimate is produced in the user equipment; and

the method further comprises causing the user equipment to communicate the interference estimate to a serving base station of the user equipment.

19. The non-transitory computer readable medium of claim 16 , wherein:

the interference estimate is produced in a network resource controller; and

the method further comprises causing the network resource controller to communicate the interference estimate to a serving base station of the user equipment.

20. The non-transitory computer readable medium of claim 16 , wherein the second information is received from a network resource controller.

21. The non-transitory computer readable medium of claim 16 , wherein the second information is received from the interfering base station.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2020
From: NOKIA SOLUTIONS AND NETWORKS OY
To: VIVO MOBILE COMMUNICATION CO., LTD.
Reel/Frame 051588/0840 →
MERGER AND CHANGE OF NAME Recorded Feb 18, 2016
From: EDEN ROCK COMMUNICATIONS, LLC; NOKIA NETWORKS US SON, LLC
To: NOKIA NETWORKS US SON, LLC
Reel/Frame 037856/0904 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 18, 2016
From: NOKIA NETWORKS US SON LLC
To: NOKIA SOLUTIONS AND NETWORKS OY
Reel/Frame 037856/0920 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2015
From: GORMLEY, EAMONN; YIP, ADRIAN
To: EDEN ROCK COMMUNICATIONS, LLC
Reel/Frame 035278/0993 →
Continuity (2)
Provisional Application 61659895 · Jun 14, 2012
Related Publication 20130337800A1 · Dec 19, 2013