Methods and apparatus for format selection for network optimization

• US 9,491,498 B2
• Filed: 04/23/2012
• Issued: 11/08/2016
• Est. Priority Date: 07/24/2007
• Status: Active Grant

• Current Assignee: Time Warner Cable Enterprises LLC (Charter Communications Incorporated)
• Original Assignee: Time Warner Cable Enterprises LLC (Charter Communications Incorporated)
• Inventors: Brooks, Paul D., Rieger, Remi
• Primary Examiner(s): Saltarelli, Dominic D
• Application Number:
  US13/453,853
• Publication Number:
  US 20120272285A1
• Time in Patent Office: 1,660 Days
• Field of Search: 725/86, 725/87, 725/98, 725/101, 725/95, 725/96
• US Class Current: 1/1
• CPC Class Codes: H04N 21/23439 for generating different versions
• CPC Class Codes: H04N 21/2402 Monitoring of the downstream path of the transmission network, e.g. bandwidth available traffic monitoring in data switching networks H04L43/00; monitoring data switching networks utilization H04L43/0876
• CPC Class Codes: H04N 21/2405 Monitoring of the internal components or processes of the server, e.g. server load allocation of resources in multiprogramming arrangements G06F9/50; performance measurement of computer activity G06F11/34
• CPC Class Codes: H04N 21/26216 involving the channel capacity, e.g. network bandwidth admission control, resource allocation in open networks H04L12/5692; flow control in packet networks H04L47/10; establishing a schedule or organising the servicing of application requests taking into account QoS H04L67/61
• CPC Class Codes: H04N 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/64792 Controlling the complexity of the content stream, e.g. by dropping packets intermediate media network packet handling H04L65/765; proxy provisioning conversion or adaptation for reducing the amount or size of exchanged application data H04L67/5651; negotiation of resources in wireless networks H04W28/16
• CPC Class Codes: H04N 21/6582 Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number arrangements where receivers interact with the broadcast H04H20/38

Abstract

Method and apparatus for optimizing network bandwidth utilization by delivering to users only the minimum number of programs required by service provider policies. In one embodiment, the method comprises switching some users from lower quality versions of programs to higher quality versions of the same programs, and removing those lower quality versions of programs from a given service group. In another embodiment, some users are switched from higher quality versions of programs to lower quality versions of those same programs, and the higher quality versions of programs removed from a given service group.

Claims

1. A method of operating a content distribution network, comprising:

making available a plurality versions of a program, each version comprising a respective encoding profile;

identifying at least one geographic region in which a bandwidth surplus exists which is insufficient to accommodate a first version of said program having a first bit rate profile without removal from delivery of at least a second version of said program having a second bit rate profile;

selecting said first version of said program having said first bit rate profile for delivery over said network; and

causing a plurality of tuners in said network which are currently tuned to said second version of said program to tune to said first version of said program so as to permit removal of at least said second version of said program from delivery thus replacing said second version of said program with said first version of said program, said first version and said second version comprising distinct bit rate profiles.

2. The method of claim 1, wherein said encoding profiles comprise at least (i) a low bit rate version of said program, and (ii) a high bit rate version of said program, each of said low and high bit rate versions encoded according to a same encoding scheme.

3. The method of claim 2, wherein said low and high bit rate versions correspond to a standard definition (SD) version and a high definition (HD) version of same program, respectively.

4. The method of claim 1, wherein:

said act of identifying said persistent network condition further comprises identifying a bandwidth surplus that is insufficient to accommodate a version of said program having a high bit rate profile; and

said act of selecting further comprises selecting said version of said program having said high bit rate profile for delivery.

5. The method of claim 1, wherein said act of identifying further comprises identifying a future bandwidth surplus.

6. The method of claim 5, wherein said act of identifying is based at least in part on said predictive analysis.

7. The method of claim 5, wherein said predictive analysis comprises analysis of historical bandwidth consumption or allocation data.

8. An apparatus configured to deliver a plurality of content to a plurality of client devices, said apparatus comprising:

at least one interface configured to deliver said plurality of content to said client devices; and

at least one processor configured to execute at least one computer program thereon, said computer program comprising a plurality of instructions which are configured to, when executed;

make a plurality versions of a program available, each version comprising a respective encoding profile;

predict a future time at which a bandwidth deficiency will exist within said network, said bandwidth deficiency comprising an insufficient amount of bandwidth to accommodate a predicted demand therefor;

select a first version of said program having a first bit rate profile; and

consolidate a plurality of tuners associated to respective ones of said plurality of client devices to tune to said first version of said program so as to permit removal of at least a second version of said program having a second bit rate profile different from said first bit rate profile from delivery at said future time.

9. The apparatus of claim 8, wherein said encoding profiles comprise at least (i) a low bit rate version of said program, and (ii) a high bit rate version of said program, each of said low and high bit rate versions encoded according to a same encoding scheme.

10. The apparatus of claim 9, wherein said low and high bit rate versions correspond to a standard definition (SD) version and a high definition (HD) version of same program, respectively.

11. The apparatus of claim 8, wherein said second bit rate profile comprises a high bit rate version of said program.

12. The apparatus of claim 8, wherein said second bit rate profile comprises a low bit rate version of said program.

13. The apparatus of claim 8, wherein said prediction is based at least in part on an analysis of historical bandwidth consumption or allocation data.

14. A computer-readable storage apparatus having a non-transitory storage medium with at least one program stored thereon, said at least one program configured to, when executed, cause a network device to:

make available a plurality versions of a program, each version comprising a respective encoding profile;

identify at least one geographic region in which a bandwidth surplus exists which is insufficient to accommodate a first version of said program having a first bit rate profile without removal from delivery of at least a second version of said program having a second bit rate profile;

select said first version of said program having said first bit rate profile for delivery over said network; and

cause a plurality of tuners in said network which are currently tuned to said second version of said program to tune to said first version of said program so as to permit removal of at least said second version of said program from delivery and thereby replace said second version of said program with said first version of said program, said first version and said second version comprising distinct bit rate profiles.

15. The computer-readable storage apparatus of claim 14, wherein said encoding profiles comprise at least (i) a low bit rate version of said program, and (ii) a high bit rate version of said program, each of said low and high bit rate versions encoded according to a same encoding scheme.

16. The computer-readable storage apparatus of claim 15, wherein said low and high bit rate versions correspond to a standard definition (SD) version and a high definition (HD) version of same program, respectively.

17. The computer-readable storage apparatus of claim 14, wherein:

said identification of said persistent network condition further comprises identification of a bandwidth surplus that is insufficient to accommodate a version of said program having a high bit rate profile; and

said selection further comprises a selection of said version of said program having said high bit rate profile for delivery.

18. The computer-readable storage apparatus of claim 14, wherein said identification further comprises identification of a future bandwidth surplus.

19. The computer-readable storage apparatus of claim 18, wherein said identification is based at least in part on said predictive analysis.

20. The computer-readable storage apparatus of claim 18, wherein said predictive analysis comprises analysis of historical bandwidth consumption or allocation data.