Method and apparatus for signal interference processing

• US 9,313,680 B2
• Filed: 08/01/2013
• Issued: 04/12/2016
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: ISCO International Inc.
• Original Assignee: ISCO International Inc.
• Inventors: Galeev, Mikhail, Seoane, Jorge
• Primary Examiner(s): Magloire, Vladimir
• Assistant Examiner(s): TACSIK, ERNEST G
• Application Number:
  US13/956,690
• Publication Number:
  US 20140274100A1
• Time in Patent Office: 985 Days
• 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 that incorporates the subject disclosure may perform, for example, a method for detecting signal interference in a first segment of a plurality of segments of a radio frequency spectrum of a wireless communication system, determining according to the signal interference a measure of quality of service of the first segment for transmitting voice traffic, comparing the measure of quality of service to a desired measure of quality of service measure for voice traffic, determining from the comparison that the first segment is not suitable for voice traffic, and notifying a system that the first segment is not suitable for voice traffic. Other embodiments are disclosed.

Claims

1. A method, comprising:

detecting, by a system comprising a processor, signal interference in a first segment of a plurality of segments occurring in a radio frequency spectrum of a wireless communication system;

determining, by the system, according to the signal interference a measure of quality of service of the first segment for transmitting voice traffic;

comparing, by the system, the measure of quality of service to a desired measure of quality of service measure for voice traffic;

determining, by the system, from the comparison that the first segment is not suitable for voice traffic;

determining, by the system, whether non-voice traffic is available for redirection to the first segment;

responsive to a first determination that the non-voice traffic is available for redirection to the first segment, assigning, by the system, the non-voice traffic to the first segment while the first segment is affected by the signal interference;

responsive to a second determination that the non-voice traffic is unavailable for redirection to the first segment, disabling, by the system, use of the first segment while the first segment is affected by the signal interference; and

responsive to a third determination that non-voice traffic is available for redirection to the first segment and a fourth determination that the first segment is not suitable for the non-voice traffic according to a desired quality of service measure for non-voice traffic, disabling, by the system, use of the first segment while the first segment is affected by the signal interference.

2. The method of claim 1, further comprising determining that the signal interference does not occur during one or more time slots of a plurality of periodic time slots.

3. The method of claim 2, further comprising enabling assignment of voice traffic to the first segment during the one or more time slots of the plurality of periodic time slots unaffected by the signal interference.

4. The method of claim 1, further comprising comparing the measure of quality of service to the desired quality of service measure for non-voice traffic.

5. The method of claim 4, further comprising determining from the comparison that the first segment is suitable for the non-voice traffic.

6. The method of claim 1, wherein assigning the non-voice traffic to the first segment is responsive to determining that the first segment is suitable for the non-voice traffic.

7. The method of claim 1, further comprising changing a modulation coding scheme of the non-voice traffic to reduce retransmissions caused by the signal interference.

8. The method of claim 1, further comprising filtering at least a portion of the signal interference to improve non-voice traffic communications interference.

9. The method of claim 8, wherein the filtering is based on an identification of an interferer sourcing the signal interference.

10. The method of claim 1, further comprising changing a modulation coding scheme of the non-voice traffic to reduce retransmissions caused by the signal interference and filtering at least a portion of the signal interference to improve non-voice traffic communications interference.

11. The method of claim 1, wherein the system comprises a base station.

12. The method of claim 1, wherein the system comprises a portable communication device.

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

detecting signal interference in a first segment of a plurality of segments occurring in a radio frequency spectrum of a wireless communication system;

determining according to the signal interference a measure of quality of service of the first segment for transmitting voice traffic;

comparing the measure of quality of service to a desired measure of quality of service measure for voice traffic;

determining from the comparison that the first segment is not suitable for voice traffic;

determining whether non-voice traffic is available for redirection to the first segment;

responsive to a first determination that the non-voice traffic is available for redirection to the first segment, assigning the non-voice traffic to the first segment while the first segment is affected by the signal interference;

responsive to a second determination that the non-voice traffic is unavailable for redirection to the first segment, disabling use of the first segment while the first segment is affected by the signal interference; and

responsive to a third determination that non-voice traffic is available for redirection to the first segment and a fourth determination that the first segment is not suitable for the non-voice traffic according to a desired quality of service measure for non-voice traffic, disabling use of the first segment while the first segment is affected by the signal interference.

14. The non-transitory machine-readable storage medium of claim 13, wherein the operations further comprise:

determining that the signal interference does not occur during one or more time slots of a plurality of periodic time slots; and

enabling assignment of voice traffic to the first segment during the one or more time slots of the plurality of periodic time slots unaffected by the signal interference.

15. The non-transitory machine-readable storage medium of claim 13, wherein the operations further comprise:

comparing the measure of quality of service to the desired quality of service measure for non-voice traffic; and

determining from the comparison that the first segment is suitable for the non-voice traffic.

16. The non-transitory machine-readable storage medium of claim 13, wherein assigning the non-voice traffic to the first segment is responsive to determining that the first segment is suitable for the non-voice traffic.

17. The non-transitory machine-readable storage medium of claim 13, wherein the operations further comprise initiating one of changing a modulation coding scheme of the non-voice traffic to reduce retransmissions caused by the signal interference, filtering at least a portion of the signal interference to improve non-voice traffic communications, or both.

18. A communication device, comprising:

a processor; and

a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising;

detecting signal interference in a first segment of a plurality of segments occurring in a radio frequency spectrum of a wireless communication system;

determining according to the signal interference a measure of quality of service of the first segment for transmitting voice traffic;

comparing the measure of quality of service to a desired measure of quality of service measure for voice traffic;

determining from the comparison that the first segment is not suitable for voice traffic;

determining whether non-voice traffic is available for redirection to the first segment;

responsive to a first determination that the non-voice traffic is available for redirection to the first segment, assigning the non-voice traffic to the first segment while the first segment is affected by the signal interference;

responsive to a second determination that the non-voice traffic is unavailable for redirection to the first segment, disabling use of the first segment while the first segment is affected by the signal interference; and

responsive to a third determination that non-voice traffic is available for redirection to the first segment and a fourth determination that the first segment is not suitable for the non-voice traffic according to a desired quality of service measure for non-voice traffic, disabling use of the first segment while the first segment is affected by the signal interference.

19. The communication device of claim 18, wherein each segment of the plurality of segments conforms to a long term evolution protocol.

20. The communication device of claim 18, wherein the operations further comprise determining that the signal interference does not occur during one or more time slots of a plurality of periodic time slots.