Determining network congestion based on target user throughput

Patent metadata

Field	Value
Publication number	US-9867080-B2
Application number	US-201615087994-A
Country	US
Kind code	B2
Filing date	Mar 31, 2016
Priority date	Mar 31, 2016
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

Systems and methods for determining network congestion (e.g., reduced or low average user throughput with telecommunications networks, such as LTE networks, are described. The systems and methods described herein facilitate the identification and/or prediction of congestion at cell sites, which may enable telecommunications networks to prevent and/or remedy current or future occurrences of congestion at cell sites within their networks.

First claim

What is claimed is:

1. A system, comprising:
at least one hardware computer, wherein the computer is configured to execute software modules, including:
a spectrum utilization module that measures a spectrum utilization percentage for physical resource blocks associated with one or more cell sectors of a cell site of a telecommunications network,
wherein the cell site is associated with a specific spectrum frequency;

a user module that measures a number of users connected to the telecommunications network via the one or more cell sectors of the cell site; and
a throughput module that determines the one or more cell sectors of the cell site are congested when:
the spectrum utilization percentage for the physical resource blocks associated with the one or more cell sectors of the cell site is above a threshold percentage of spectrum utilization that is associated with congestion of the one or more cell sectors of the cell site; and
the number of users connected to the telecommunications network via the one or more cell sectors of the cell site is above a threshold number of connected users based on the specific spectrum frequency and that is associated with congestion of the one or more cell sectors of the cell site.

2. The system of claim 1 , further comprising:
an efficiency module that measures a spectral efficiency of the cell site;
wherein the throughput module further determines the cell site is congested when the measured spectral efficiency of the cell site is above a threshold efficiency associated with congestion of the cell site.

3. The system of claim 1 , further comprising:
an action module that performs an action associated with modifying operations of the cell site or the telecommunications network in response to the throughput module determining the cell site is congested.

4. The system of claim 1 , wherein the cell site is determined to be congested when the spectrum utilization percentage for the physical resource blocks associated with the one or more cell sectors of the cell site and the number of users connected to the telecommunications network via the one or more cell sectors of the cell site indicate that an increase in data transmission via the one or more cell sectors of the cell site will result in a reduced throughput of data via the one or more cell sectors of the cell site.

5. The system of claim 1 , wherein the cell site is determined to be congested when the spectrum utilization percentage for the physical resource blocks associated with the one or more cell sectors of the cell site and the number of users connected to the telecommunications network via the one or more cell sectors of the cell site indicate that the average user throughput at the one or more cell sectors of the cell site is less than 2 Mbps.

6. The system of claim 1 , wherein the threshold percentage of spectrum utilization is based on a predetermined throughput value to be maintained at the one or more cell sectors of the cell site.

7. The system of claim 1 , wherein the threshold number of connected users is based on a predetermined throughput value to be maintained at the cell site.

8. The system of claim 1 , wherein the spectrum frequency of the cell site is normalized to 5 MHz; and
wherein the throughput module determines the cell site is congested when the spectrum utilization percentage for the physical resource blocks associated with the one or more cell sectors of the cell site is above 70% spectrum utilization, and when the number of users connected to the telecommunications network via the cell site is above 65 total users.

9. The system of claim 1 , wherein the throughput module determines the one or more cell sectors of the cell site is congested without performing a data transmission via the cell site to directly measure the throughput of the cell site.

10. A method, comprising:
measuring a spectrum utilization percentage for physical resource blocks associated with a cell site of a telecommunications network,
measuring a number of users connected to the telecommunications network via the cell site; and
determining the cell site is congested when the spectrum utilization percentage for the physical resource blocks associated with the cell site is above a threshold percentage of spectrum utilization that is associated with congestion of the cell site and when the number of users connected to the telecommunications network via the cell site is above a threshold number of connected users that is associated with congestion of the cell site.

11. The method of claim 10 , further comprising:
measuring a spectral efficiency of the cell site;
wherein the cell site is determined to be congested when the measured spectral efficiency of the cell site is above a threshold efficiency associated with congestion of the cell site.

12. The method of claim 10 , wherein the cell site is associated with a specific spectrum frequency, and wherein the threshold number of connected users associated with congestion of the cell site is based on the specific spectrum frequency.

13. The method of claim 10 , further comprising:
performs an action associated with modifying operations of the cell site or the telecommunications network in response to determining the cell site is congested.

14. The method of claim 10 , wherein the cell site is determined to be congested when the spectrum utilization percentage for the physical resource blocks associated with the cell site and the number of users connected to the telecommunications network via the cell site indicate that an increase in data transmission via the cell site will result in a reduced throughput of data via the cell site.

15. The method of claim 10 , wherein the cell site is determined to be congested when the spectrum utilization percentage for the physical resource blocks associated with the cell site and the number of users connected to the telecommunications network via the cell site indicate that the average user throughput at the cell site is less than 2 Mbps.

16. The method of claim 10 , wherein the threshold percentage of spectrum utilization is based on maintaining a predetermined throughput value at the cell site.

17. The method of claim 10 , wherein the threshold number of connected users is based on maintaining a predetermined average user throughput value at the cell site.

18. The system of claim 1 , wherein the spectrum frequency of the cell site is normalized to 5 MHz; and
wherein the cell site is determined to be congested when the spectrum utilization percentage for the physical resource blocks associated with the cell site is above 70% spectrum utilization, and when the number of users connected to the telecommunications network via one or more cell sectors of the cell site is above 65 total users.

19. At least one non-transitory computer-readable medium, carrying instructions, which when executed by at least one data processor, performs a method, comprising:
measuring a spectrum utilization percentage for physical resource blocks associated with a cell site of a telecommunications network,
measuring a number of users connected to the telecommunications network via the cell site; and
determining the cell site is congested when the spectrum utilization percentage for the physical resource blocks associated with the cell site is above a threshold percentage of spectrum utilization that is associated with congestion of the cell site and when the number of users connected to the telecommunications network via the cell site is above a threshold number of connected us

Assignees

• T-Mobile U S A Inc
• T Mobile Usa Inc

Inventors

• Sung Hui-Hsia
• Jacinto Marie Grace
• Jat Khrum Kashan
• Dousson Gary

Classifications

• H04W24/02

  Arrangements for optimising operational condition · CPC title

• H04W24/04 Primary

  Arrangements for maintaining operational condition · CPC title

• H04W28/0284 Primary

  detecting congestion or overload during communication (monitoring arrangements H04L43/00) · CPC title

• H04W28/0289

  Congestion control (load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12) · CPC title