Method and apparatus for interference mitigation utilizing antenna pattern adjustments

Patent metadata

Field	Value
Publication number	US-10652903-B2
Application number	US-201816159858-A
Country	US
Kind code	B2
Filing date	Oct 15, 2018
Priority date	Mar 15, 2013
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

A system that incorporates the subject disclosure may perform, for example, a method for receiving interference information, identifying a plurality of interferers, approximating a location of the plurality of interferers, and adjusting an antenna pattern of an antenna. The method can include determining traffic loads and adjusting the antenna pattern according to the traffic loads. Other embodiments are disclosed.

First claim

What is claimed is:

1. A method, comprising:
obtaining, by a processing system comprising a processor, interference information affecting a plurality of base stations, wherein the interference information is obtained from a plurality of mobile communication devices in communication with the plurality of base stations, wherein the plurality of base stations is subject to interference caused by an interferer of a plurality of interferers external to the plurality of base stations, wherein the plurality of mobile communication devices filter the interference information according to an adaptive threshold to detect signal interference in a plurality of spectral segments in a radio frequency spectrum of a wireless communication system;
correlating, by the processing system, the interference information obtained from the plurality of mobile communication devices to generate correlated information;
determining, by the processing system, an interferer location of an interferer of the plurality of interferers according to the correlated information;
predicting, by the processing system, recurrent interference caused by the interferer of the plurality of interferers; and
adjusting, by the processing system, a first antenna pattern of a first antenna of a first base station of the plurality of base stations to reduce interference by the interferer of the plurality of interferers based on a first traffic load associated with the first base station.

2. The method of claim 1 , wherein the adjusting of the first antenna pattern further comprises changing a first coverage area of the first antenna to obtain an adjusted first coverage area that is smaller than the first coverage area, and
wherein the adjusting of the first antenna pattern results in the interferer of the plurality of interferers being located at least in part outside of the adjusted first coverage area of the first antenna.

3. The method of claim 1 , wherein the adjusting of the first antenna pattern causes one or more mobile communication devices of the plurality of mobile communication devices to change from utilizing the first base station to utilizing a second base station for communication services.

4. The method of claim 3 , further comprising determining, by the processing system, the first traffic load associated with the first base station and a second traffic load associated with the second base station, wherein the adjusting of the first antenna pattern is based on the first traffic load and the second traffic load, and wherein the adjusting of the first antenna pattern causes an increase in the second traffic load at the second base station.

5. The method of claim 4 , further comprising:
adjusting, by the processing system, a second antenna pattern of a second antenna of the second base station based on a determined location of another interferer of the plurality of interferers, wherein the adjusting of the second antenna pattern changes a second coverage area of the second antenna to an adjusted second coverage area,
wherein the adjusting of the second antenna pattern results in the another interferer of the plurality of interferers being located at least in part outside of the adjusted second coverage area of the second antenna.

6. The method of claim 1 , wherein the adjusting of the first antenna pattern causes a decrease in the first traffic load at the first base station.

7. The method of claim 1 , further comprising:
receiving, by the processing system, device location information for each of a plurality of communication devices,
wherein the adjusting of the first antenna pattern is further based on the device location information.

8. The method of claim 1 , wherein the recurrent interference caused by the interferer of the plurality of interferers is determined by detecting a temporal recurrence of the interferer according to a spectral profile associated with the interferer of the plurality of interferers.

9. The method of claim 1 , wherein the correlating further comprises:
determining, by the processing system, temporal recurrences of the plurality of interferers;
estimating, by the processing system, a location of each interferer of the plurality of interferers; and
generating, by the processing system, an interference map of the plurality of interferers according to the temporal recurrences and the estimating of the location of each interferer of the plurality of interferers.

10. A machine-readable storage medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations, the operations comprising:
obtaining interference information affecting a plurality of antenna locations from a plurality of mobile communication devices, wherein the plurality of antenna locations is subject to interference caused by an interferer of a plurality of interferers external to the plurality of antenna locations, wherein the plurality of mobile communication devices filter the interference information according to an adaptive threshold to detect signal interference in a plurality of spectral segments in a radio frequency spectrum of a wireless communication system;
correlating the interference information obtained from the plurality of mobile communication devices to generate correlated information;
determining an estimated interferer location of an interferer of the plurality of interferers according to the correlated information;
generating an interference map for the interfere of the plurality of interferers according to the estimated interferer location; and
adjusting a first antenna pattern of a first antenna at a first location of the plurality of antenna locations according to instances of recurrent interference on the interference map and based on a first traffic load associated with the first antenna to change a first coverage area of the first antenna to an adjusted first coverage area that is smaller than the first coverage area.

11. The machine-readable storage medium of claim 10 , wherein the adjusting of the first antenna pattern causes a communication device to change from utilizing the first antenna to utilizing a second antenna at a second location of the plurality of antenna locations for accessing communication services.

12. The machine-readable storage medium of claim 11 , wherein the interference information is determined according to signal interference occurring in the plurality of spectral segments of the wireless communication system,
wherein the first antenna is coupled to a first base station, wherein the second antenna is coupled to a second base station, and
wherein each spectral segment of the plurality of spectral segments is utilized for communications conforming to a long term evolution protocol.

13. The machine-readable storage medium of claim 12 , wherein the adjusting of the first antenna pattern causes a decrease in the first traffic load at the first antenna,
wherein the adjusting of the first antenna pattern results in a detected interferer being located at least in part outside of the adjusted first coverage area of the first antenna, and
wherein the operations further comprise determining the first traffic load associated with the first antenna and a second traffic load associated with the second antenna, wherein the adjusting of the first antenna pattern is based on the first and second traffic loads.

14. The machine-readable storage medium of claim 12 , wherein the operations further comprise:
adjusting a second antenna pattern of a second antenna of the plurality of antenna locations based on the interference map,
wherein the adjusting of

Assignees

• Isco Int Llc

Inventors

• Abdelmonem Amr
• Galeev Mikhail
• Seskiewicz Dariusz

Classifications

• H04W4/023

  using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds · CPC title

• H04W52/14

  Separate analysis of uplink or downlink · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04B17/327

  Received signal code power [RSCP] · CPC title

• H04B1/71

  the interference being narrowband interference · CPC title