Facilitation of self-adjusting network uplink noise balancing

• US 9,185,569 B2
• Filed: 09/25/2014
• Issued: 11/10/2015
• Est. Priority Date: 11/27/2012
• Status: Active Grant

• Current Assignee: AT&T Mobility II LLC (AT&T, Inc.)
• Original Assignee: AT&T Mobility II LLC (AT&T, Inc.)
• Inventors: Brisebois, Arthur Richard, Stephens, Michael
• Primary Examiner(s): Khan, Suhail
• Application Number:
  US14/496,912
• Publication Number:
  US 20150011222A1
• Time in Patent Office: 411 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04J 11/0066 of narrowband interference narrowband interference reduction H04B1/1036
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 16/24 Cell structures
• CPC Class Codes: H04W 16/32 Hierarchical cell structures
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 36/20 for optimising the interference level
• CPC Class Codes: H04W 36/302 due to low signal strength
• CPC Class Codes: H04W 52/143 Downlink power control
• CPC Class Codes: H04W 52/241 taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/40 during macro-diversity or soft handoff
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

Compensation is provided for foreign interference within a cell. Uplink (UL) noise on an UL channel to a first base station (BS) device is detected. Whether the UL noise includes interference is determined. Interference can include any device other than a mobile device configured to communicate with a BS device associated with a cell. The first service area of the BS device can be modified, e.g., scaled based on determining that the UL noise includes interference. Scaling can include reducing the first service area to a second service area that does not include an imbalance region in the first service area caused by the foreign interference. Scaling can be effected by reducing the amount of downlink power from the first BS device, or by adjusting a re-selection parameter associated with reducing the range of the BS device.

Claims

1. A method, comprising:

detecting, by a system comprising a processor, uplink noise of an uplink channel to a base station device;

determining, by the system, whether the uplink noise comprises interference based on whether the uplink noise satisfies a defined condition in which a value of the uplink noise reduces an uplink service area to an area less than a downlink service area for the base station device; and

modifying, by the system, a first service area of the base station device based on determining that the uplink noise comprises the interference, wherein the modifying comprises reducing the first service area to a second service area by excluding a portion of an imbalance region in the first service area.

2. The method of claim 1, further comprising:

determining, by the system, whether the uplink noise of the uplink channel satisfies the defined condition.

3. The method of claim 2, wherein the defined condition comprises a condition of whether an average value of the uplink noise is greater than a reference value.

4. The method of claim 2, wherein the imbalance region is determined to be located at a gap between the uplink service area and the downlink service area.

5. The method of claim 2, wherein the base station device is a first base station device, and the modifying comprises:

reducing an amount of downlink power from the first base station device from a first downlink power to a second downlink power, and wherein the method further comprises;

based on the reducing, facilitating, by the system, transfer to a cell device associated with a second base station device, for a mobile device in the imbalance region.

6. The method of claim 5, wherein the amount is based on a difference by which an average value of the uplink noise is determined to be greater than a reference value.

7. The method of claim 5, further comprising:

in response to determining that the uplink noise fails to comprise the interference, adjusting, by the system, the downlink power from the first base station device to the first downlink power.

8. The method of claim 1, wherein the interference comprises an analog signal broadcasted by a device.

9. The method of claim 1, wherein the base station device is a first base station device, and the modifying comprises:

adjusting a first re-selection parameter associated with reducing a first range of the base station device, wherein the first re-selection parameter is adjusted from a first value to a second value, and wherein the method further comprises;

based on the adjusting the first re-selection parameter, facilitating, by the system, re-selection of an idle mobile device in the imbalance region from a cell device associated with the first base station device to a second cell device associated with a second base station device.

10. The method of claim 9, further comprising:

adjusting, by the system, a second re-selection parameter associated with reducing a second range of the other cell device for the second base station device, wherein the second base station device is determined to neighbor the base station device according to a defined neighboring criterion, and wherein the second re-selection parameter is adjusted by an amount determined to prevent re-selection of the cell device for the first base station device by the idle mobile device.

11. The method of claim 9, further comprising:

based on determining that the uplink noise fails to comprise the interference, re-adjusting, by the system, the first re-selection parameter to the first value.

12. A system, comprising:

a processor; and

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

detecting uplink noise on an uplink channel from the system to a base station device; and

modifying a first service area of the base station device based on determining that the uplink noise comprises interference from a source other than a mobile device based on determining whether the uplink noise satisfies a defined condition in which the uplink noise is associated with a value that decreases a size of an uplink service area of the base station device to a region having less area than a downlink service area for the base station device,

wherein the modifying comprises reducing the first service area to exclude an imbalance region in the first service area, and

wherein the imbalance region is a region determined to have satisfied an imbalance criterion.

13. The system of claim 12, wherein the defined condition comprises a condition that is a function of an average value of the uplink noise.

14. The system of claim 13, wherein the average value of the uplink noise is determined to be greater than a reference value.

15. The system of claim 12, wherein the imbalance region is determined to be present at a gap between the uplink service area and the downlink service area, wherein the uplink service area is a first area in which the base station device is capable of reception of a communication via the uplink channel according to at least a first defined likelihood, and wherein the downlink service area is a second area in which the communication is capable of reception via the downlink channel from the base station device according to at least a second defined likelihood.

16. The system of claim 12, wherein the modifying further comprises:

reducing an amount of power of a downlink channel from the base station device based on a determination that the uplink noise to the base station device satisfies the defined condition.

17. The system of claim 16, wherein the amount is determined based on a difference between an average value of the uplink noise and a reference value.

18. The system of claim 12, wherein the modifying further comprises:

adjusting a re-selection parameter associated with reduction of a range of the base station device; and

facilitating re-selection of an idle mobile device from a cell device associated with the base station device, wherein the idle mobile device is determined to be located in the imbalance region.

19. A non-transitory computer-readable storage medium storing executable instructions that, in response to execution, cause a system comprising a processor to perform operations, comprising:

detecting uplink noise present on an uplink channel of a first one of base station devices;

determining that the uplink noise comprises interference from a source other than a mobile device served by any of the base station device based on the uplink noise being determined to have a value that modifies an uplink service area of a first one of base station devices to a region having less area than a downlink service area for the first one of base station devices; and

reducing a coverage area of the first one of the base station devices to exclude an imbalance region, wherein the imbalance region is a region determined to have become imbalanced as a result of the interference based on an evaluation of an imbalance criterion.

20. The non-transitory computer-readable storage medium of claim 19, wherein the reducing the coverage area comprises modifying a broadcast parameter to instruct a mobile device in the imbalance region with respect to selecting a second one of the base station devices.