Creating library of interferers

• US 9,426,692 B2
• Filed: 08/07/2013
• Issued: 08/23/2016
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: ISCO International Inc.
• Original Assignee: ISCO International Inc.
• Inventors: Abdelmonem, Amr, Galeev, Mikhail, Seskiewicz, Dariusz, Myers, Bill, Myers, Ted
• Primary Examiner(s): Rinehart, Mark
• Assistant Examiner(s): HOPKINS, MATTHEW A
• Application Number:
  US13/960,942
• Publication Number:
  US 20140269606A1
• Time in Patent Office: 1,112 Days
• Field of Search: 370/341
• US Class Current: 1/1
• CPC Class Codes: H04B 1/1036 with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters H04B1/123 takes precedence; filter circuits H03H
• CPC Class Codes: H04B 1/709 Correlator structure
• CPC Class Codes: H04B 1/71 the interference being narrowband interference
• CPC Class Codes: H04B 1/7103 the interference being multiple access interference
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04B 17/00 Monitoring; Testing of line transmission systems H04B3/46; arrangements for monitoring or testing transmission systems employing electromagnetic waves other than radio waves H04B10/07
• CPC Class Codes: H04B 17/21 for calibration; for correcting measurements
• CPC Class Codes: H04B 17/26 using historical data, averaging values or statistics
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04B 17/327 Received signal code power [RSCP]
• CPC Class Codes: H04B 17/345 Interference values signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] H04B17/336
• CPC Class Codes: H04B 17/373 Predicting channel quality or other radio frequency [RF] parameters
• CPC Class Codes: H04B 2201/709709 Methods of preventing interference
• CPC Class Codes: H04B 2201/709745 Iterative interference mitigation schemes
• CPC Class Codes: H04B 7/2634 for channel frequency control
• CPC Class Codes: H04J 11/0066 of narrowband interference narrowband interference reduction H04B1/1036
• CPC Class Codes: H04L 41/069 using logs of notifications; Post-processing of notifications
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0026 Division using four or more dimensions
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/006 : Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0073 : Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04W 16/28 : using beam steering
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/08 : Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 : Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0236 : radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 28/04 : Error control
• CPC Class Codes: H04W 4/02 : Services making use of location information
• CPC Class Codes: H04W 4/023 : using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/029 : Location-based management or tracking services
• CPC Class Codes: H04W 40/16 : based on interference
• CPC Class Codes: H04W 52/04 : TPC
• CPC Class Codes: H04W 52/14 : Separate analysis of uplink or downlink
• CPC Class Codes: H04W 52/243 : taking into account interferences
• CPC Class Codes: H04W 64/00 : Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 64/006 : with additional information processing, e.g. for direction or speed determination
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/52 : based on load
• CPC Class Codes: H04W 72/54 : based on quality criteria
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 72/542 : using measured or perceived quality

Abstract

A system includes a method for detecting a signal interference in a communication signal of a wireless communication system. An identified source of the signal interference is determined according to an interference profile of a plurality of interference profiles associated with an interference profile library having information that approximates characteristics of the signal interference. The signal interference of the communication signal is mitigated according to an interference parameter associated with the identified source by filtering the communication signal according to the interference parameter.

Claims

1. A method, comprising:

receiving, by a system comprising a processor, a first communication signal of a wireless communication system;

detecting, by the system, a first signal interference in a first resource block of a plurality of resource blocks in a radio frequency spectrum of the first communication signal;

comparing, by the system, the first signal interference with a plurality of interference profiles of an interference profile library;

identifying, by the system, an identified source of the first signal interference according to at least approximate matching between the first signal interference and an interference profile of the plurality of interference profiles of the interference profile library based on the comparing;

retrieving, by the system, an interference parameter associated with the identified source; and

transmitting to a mobile communication device, by the system, the interference parameter associated with the identified source, wherein the mobile communication device selects a digital filter type for processing the first communication signal according to the interference parameter associated with the identified source, wherein the digital filter type comprises a band pass filter, a high pass filter, a low pass filter, or any combination thereof, and wherein the digital filter type mitigates the first signal interference in the first resource block of the first communication signal according to the interference parameter by filtering the first communication signal according to the interference parameter.

2. The method of claim 1, further comprising setting, by the system, a filter parameter of a signal processing filter according to the interference parameter.

3. The method of claim 1, wherein the communication device mitigates the first signal interference of a second communication signal of the wireless communication system.

4. The method of claim 1, further comprising transmitting, by the system, information indicating the identified source of the first signal interference to the wireless communication system.

5. The method of claim 1, further comprising monitoring, by the system, frequencies of interference associated with the identified source.

6. The method of claim 1, further comprising monitoring, by the system, locations of interference associated with the identified source.

7. The method of claim 1, further comprising updating, by the system, the interference profile library according to determining the identified source.

8. The method of claim 1, further comprising:

detecting, by the system, a second signal interference in a second resource block of the plurality of resource blocks in the radio frequency spectrum of the communication signal;

determining, by the system, that the second signal interference does not match any of the plurality of interference profiles associated with the interference profile library; and

transmitting, by the system, information indicating that the second signal interference is caused by an unknown source of interference.

9. The method of claim 8, further comprising updating, by the system, the interference profile library according to the unknown source of interference.

10. The method of claim 1, further comprising:

measuring, by the system, a plurality of power levels of the plurality of resource blocks;

determining, by the system, a baseline power level from the plurality of power levels; and

determining, by the system, a threshold from the baseline power level, wherein the threshold is used for detecting the first signal interference.

11. The method of claim 1, wherein the system comprises one of a wireless base station, a switching station, a wireless router, or a wireless hub used by a satellite communication system.

12. The method of claim 1, wherein the system communicates with the wireless communication system via cellular communication.

13. A non-transitory machine-readable storage medium, comprising instructions, which when executed by a processor, cause the processor to perform operations comprising:

detecting a signal interference in a communication signal of a wireless communication system;

detecting an interference profile of a plurality of interference profiles associated with an interference profile library comprising information that substantially matches the signal interference;

identifying a source of the signal interference according to the interference profile with the information that substantially matches the signal interference; and

transmitting information indicating the source of the signal interference to a mobile communication device of the wireless communication system, wherein the mobile communication device selects a digital filter type for processing the communication signal according to the source of the signal interference, wherein the digital filter type comprises a band pass filter, a high pass filter, a low pass filter, or any combination thereof, and wherein the digital filter type mitigates the signal interference in a first resource block of the communication signal according to the source of the signal interference by filtering the communication signal.

14. The non-transitory machine-readable storage medium of claim 13, further comprising instructions that cause the processor to perform operations comprising mitigating the signal interference of the communication signal according to an interference parameter associated with the source by filtering the communication signal according to the interference parameter.

15. The non-transitory machine-readable storage medium of claim 14, further comprising instructions that cause the processor to perform operations comprising setting a filter parameter of a signal processing filter according to the interference parameter.

16. A device, comprising:

a memory to store instructions; and

a processor coupled to the memory, wherein the processor, responsive to executing the instructions, performs operations comprising;

detecting a signal interference in communication signal of a wireless communication system;

comparing spectral data associated with the signal interference to spectral data included in a plurality of interference profiles associated with an interference profile library;

detecting at least an approximate match between the spectral data of the signal interference and the spectral data of a first interference profile of the plurality of interference profiles;

identifying an identified signal source according to the first interference profile for which the approximate match is detected; and

transmitting the identified signal source to a mobile communication device, wherein the mobile communication device selects a digital filter type for processing the communication signal according to the identified signal source, wherein the digital filter type comprises a band pass filter, a high pass filter, a low pass filter, or any combination thereof, and wherein the digital filter type mitigates a portion of the signal interference in the communication signal according to filter information associated with the identified signal source.