Long term evolution communication policies based on explicit congestion notification

• US 9,860,791 B1
• Filed: 07/02/2014
• Issued: 01/02/2018
• Est. Priority Date: 07/02/2014
• Status: Expired due to Fees

• Current Assignee: T-Mobile Innovations LLC (Deutsche Telekom AG)
• Original Assignee: Sprint Communications Company LP (Deutsche Telekom AG)
• Inventors: Fiumano, Michael Francis, Glass, Luis D.
• Primary Examiner(s): Pham, Chi H
• Assistant Examiner(s): Agureyev, Vladislav
• Application Number:
  US14/321,971
• Time in Patent Office: 1,280 Days
• Field of Search: None
• CPC Class Codes: H04W 28/0284 detecting congestion or overload during communication monitoring arrangements H04L43/00
• CPC Class Codes: H04W 28/0289 Congestion control load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/12 using signalling between network elements

Abstract

Examples disclosed herein provide systems, methods, and software to control wireless communication policies and rules based on congestion. In one example, a method of operating a Long Term Evolution (LTE) network includes, in a LTE base station, identifying congestion data for one or more communicating wireless communication devices, and identifying that the congestion data meets a congestion criteria. The method further includes, in the LTE base station and responsive to meeting the congestion criteria, setting an explicit congestion notification (ECN) flag for a wireless communication device communication, and transferring the ECN flag for delivery to a LTE gateway. The method further provides, in the LTE gateway, receiving the ECN flag, and identifying a congestion policy for at least one wireless communication device communicating with the LTE base station.

Claims

1. A method of operating a Long Term Evolution (LTE) network to control communication policies, the method comprising:

in an LTE base station, identifying congestion data indicative of congestion at the LTE base station caused by a plurality of wireless communication devices communicating with the LTE base station;

in the LTE base station, identifying that the congestion data meets congestion criteria;

in the LTE base station and responsive to the congestion data meeting the congestion criteria, setting a virtual explicit congestion notification (ECN) flag for a wireless communication device communication that already has an ECN flag set for the wireless communication device communication;

in the LTE base station, transferring the virtual ECN flag for delivery to an LTE gateway;

in the LTE gateway, receiving the virtual ECN flag; and

in the LTE gateway and responsive to receiving the virtual ECN flag, identifying a congestion policy for at least one wireless communication device in the plurality of wireless communication devices communicating with the LTE base station based on a quality of service associated with each of the wireless communication devices.

2. The method of claim 1 wherein the LTE gateway comprises a packet data network gateway.

3. The method of claim 1 wherein the congestion data comprises radio frequency noise data caused by the plurality of wireless communication devices communicating with the LTE base station.

4. The method of claim 1 wherein the congestion data comprises a quantity of wireless communication devices communicating with the LTE base station.

5. The method of claim 1 wherein the congestion data comprises a quantity of data communicated over the LTE base station by the plurality of wireless communication devices.

6. The method of claim 1 wherein the congestion policy for the at least one wireless communication device communicating with the LTE base station comprises a bandwidth limiting policy for the at least one wireless communication device communicating with the LTE base station.

7. The method of claim 1 wherein identifying the congestion policy for the at least one wireless communication device communicating with the LTE base station comprises:

transferring a policy and rule request for delivery to policy and charging rules function; and

receiving policy rules for the at least one wireless communication device communicating with the LTE base station.

8. The method of claim 1 further comprising:

in the LTE gateway, removing the virtual ECN flag for the wireless communication device communication.

9. The method of claim 1 wherein the LTE base station comprises an eNodeB.

19. The method of claim 1 wherein the quality of service associated with each of the wireless communication devices comprises a quality of service associated with an application executing on each of the wireless communication devices.

10. A communication system to manage communication policies based on congestion, the communication system comprising:

an LTE base station configured to;

identify congestion data indicative of congestion at the LTE base station caused by a plurality of wireless communication devices communicating with the LTE base station;

identify that the congestion data meets congestion criteria;

in response to the congestion data meeting the congestion criteria, set a virtual explicit congestion notification (ECN) flag for a wireless communication device communication that already has an ECN flag set for the wireless communication device communication; and

transfer the virtual ECN flag for delivery to an LTE gateway; and

the LTE gateway configured to;

receive the virtual ECN flag; and

in response to receiving the virtual ECN flag, identify a congestion policy for at least one wireless communication device in the plurality of wireless communication devices communicating with the LTE base station based on a quality of service associated with each of the wireless communication devices.

11. The communication system of claim 10 wherein the LTE gateway comprises a packet data network gateway.

12. The communication system of claim 10 wherein the congestion data comprises radio frequency noise data caused by the plurality of wireless communication devices communicating with the LTE base station.

13. The communication system of claim 10 wherein the congestion data comprises a quantity of wireless communication devices communicating with the LTE base station.

14. The communication system of claim 10 wherein the congestion data comprises a quantity of data communicated over the LTE base station by the plurality of wireless communication devices.

15. The communication system of claim 10 the congestion policy for the at least one wireless communication device communicating with the LTE base station comprises a bandwidth limiting policy for the at least one wireless communication device communicating with the LTE base station.

16. The communication system of claim 10 wherein the LTE gateway configured to identify the congestion policy for the at least one wireless communication device communicating with the LTE base station is configured to:

transfer a policy and rule request for delivery to policy and charging rules function; and

receive policy rules for the at least one wireless communication device communicating with the LTE base station.

17. The communication system of claim 10 wherein the LTE gateway is further configured to remove the virtual ECN flag for the wireless communication device communication.

18. The communication system of claim 10 wherein the LTE base station comprises an eNodeB.

20. The communication system of claim 10 wherein the quality of service associated with each of the wireless communication devices comprises a quality of service associated with an application executing on each of the wireless communication devices.