System and method for improving network performance using a connection admission control engine

• US 10,469,385 B2
• Filed: 11/02/2015
• Issued: 11/05/2019
• Est. Priority Date: 08/22/2006
• Status: Active Grant

• Current Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Original Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Inventors: Heinz, John M., McNaughton, James L.
• Primary Examiner(s): Yuen, Kan
• Application Number:
  US14/930,432
• Publication Number:
  US 20160057062A1
• Time in Patent Office: 1,464 Days
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/24 Multipath
• CPC Class Codes: H04L 45/247 using M:N active or standby paths
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/726 Reserving resources in multiple paths to be used simultaneously by balancing the load H04L47/125
• CPC Class Codes: H04L 47/746 Reaction triggered by a failure
• CPC Class Codes: H04L 47/801 Real time traffic
• CPC Class Codes: H04L 47/803 Application aware
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data

Abstract

The disclosed embodiments include a method, apparatus, and computer program product for modifying a three-dimensional geocellular model. For example, one disclosed embodiment includes a system that includes at least one processor and at least one memory coupled to the at least one processor. The memory stores instructions that when executed by the at least one processor performs operations that includes gathering network performance information regarding data flow communicated with a client of a network over a plurality of connections utilizing performance information packets; and automatically balancing the data flow of the plurality of connections between access points of the network that are available to the client using connection admission control engines.

Claims

1. A method of improving network performance for voice over Internet Protocol (VoIP) calls, the method comprising:

receiving, by one or more call control managers, network performance information regarding data flow communicated over a network utilizing performance information data packets (PIP) generated by nodes along one or more paths through the network, wherein the network performance information is received in-band along a data path of the network, and wherein the network performance information includes information added by and associated with at least one node located between two end-points of the one or more paths or at least one network element located between the two end-points of the one or more paths; and

optimizing, with the one or more call control managers, call quality for one or more VoIP calls, based on the received network performance information, wherein optimizing call quality comprises automatically offloading other network traffic other than the one or more VoIP calls from the one or more paths through the network used by the one or more VoIP calls to alternate paths through the network in response to a detection of congestion on the one or more paths;

wherein at least some of the network performance information is generated by a node in response to detection by one of the nodes that call quality at that node has degraded past a specified threshold.

2. The method of claim 1, wherein optimizing call quality comprises determining a route through the network for one of the VoIP calls.

3. The method of claim 2, wherein the network performance information comprises measures of real-time bandwidth of a plurality of network segments, and wherein determining a route comprises determining a route based on a summation of real-time bandwidth of a plurality of segments along a path through the network.

4. The method of claim 2, wherein determining a route through the network comprises routing the one of the VoIP calls directly to voicemail, based on the network 3 performance information.

5. The method of claim 2, wherein the one of the VoIP calls is addressed to a 2 called number associated with a user, and wherein determining a route for the one of the VoIP calls comprises routing the one of the VoIP calls to an alternate number associated with the user, based on the network performance information, the alternate number being different than the called number.

6. The method of claim 1, further comprising:

notifying, based on the network performance information, a user that a call may be dropped prior to the call being dropped.

7. The method of claim 1, wherein optimizing call quality comprises altering an ongoing call session based on the network performance information.

8. The method of claim 7, wherein altering an ongoing call session comprises converting a video call session to an audio-only call session.

9. The method of claim 1, wherein optimizing call quality comprises selecting a CODEC for one of the VoIP calls.

10. The method of claim 1, further comprising:

storing, by the one or more call control managers, at least some of the network performance information in one or more centralized tables.

11. The method of claim 10, wherein the one or more tables comprise VoIP provisioning tables, and wherein the one or more call control managers store segment information, about a plurality of network segments in the network, in the one or more provisioning tables, the segment information being based on the network performance information.

12. The method of claim 11, further comprising:

2 querying, by the one or more call control managers, at least one of the one or more 3 provisioning tables, wherein optimizing call quality is based on querying the at least one of the one or more provisioning tables.

13. The method of claim 10, wherein the segment information comprises a status value for each of the segments.

14. The method of claim 1, wherein the network performance information is reported and received in real time.

15. The method of claim 1, wherein at least some of the network performance information is generated periodically.

16. The method of claim 1, wherein optimizing call quality comprises automatically enacting call throttling procedures based on the network performance information.

17. The method of claim 1, wherein the network performance information added by and associated with the at least one node located between two end-points of the one or more paths or at least one network element located between the two end-points of the one or more paths further comprises a segment identifier associated with the at least one node or the at least one network element.

18. A call control manager, comprising:

at least one processor; and

a non-transitory memory communicatively coupled to the at least one processor, the non-transitory memory storing computer executable instructions for improving network performance, the computer executable instructions comprises instructions to;

receive network performance information regarding data flow communicated over a network utilizing performance information packets generated by nodes along one or more paths through the network, wherein the network performance information is received in-band along a data path of the network, and wherein the network performance information includes information added by and associated with at least one node located between two end-points of the one or more paths or at least one network element located between the two end-points of the one or more paths; and

optimize call quality for one or more VoIP calls, based on the received network performance information, wherein optimizing call quality comprises automatically offloading other network traffic other than the one or more VoIP calls from the one or more paths through the network used by the one or more VoIP calls to alternate paths through the network in response to a detection of congestion on the one or more paths;

wherein at least some of the network performance information is generated by a node in response to detection by one of the nodes that call quality at that node has degraded past a specified threshold.

19. An apparatus, comprising:

a non-transitory memory storing computer executable instructions for improving network performance for voice over Internet Protocol (VoIP) calls, the computer executable instructions comprising instructions executable by a call control manager to;

receive network performance information regarding data flow communicated over a network utilizing performance information packets generated by nodes along one or more paths through the network, wherein the network performance information is received in-band along a data path of the network, and wherein the network performance information includes information added by and associated with at least one node located between two end-points of the one or more paths or at least one network element located between the two end-points of the one or more paths; and

optimize call quality for one or more VoIP calls, based on the received network performance information, wherein optimizing call quality comprises automatically offloading other network traffic other than the one or more VoIP calls from the one or more paths through the network used by the one or more VoIP calls to alternate paths through the network in response to a detection of congestion on the one or more paths;

wherein at least some of the network performance information is generated by a node in response to detection by one of the nodes that call quality at that node has degraded past a specified threshold.