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Method and apparatus for managing bandwidth requirements for video on demand services

  • US 7,593,326 B2
  • Filed: 05/25/2006
  • Issued: 09/22/2009
  • Est. Priority Date: 06/29/2005
  • Status: Expired due to Fees
First Claim
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1. A method for managing bandwidth for transmitting the content of a video to one or more users requesting receipt of the content of the video, each user belonging to a user service class, said method comprising:

  • a computer dividing the total time duration T of the video into N consecutive sessions S1, S2, . . . , SN, wherein N is at least 2, and wherein a unicast or multicast connection in normal play mode is permitted to be created for each session only at one of discrete times T0, T1, . . . , TN−

    1
    subject to Ti=iΔ

    T and Δ

    T=T/N for i=0, 1, . . . , N−

    1;

    said computer establishing an overall bandwidth B for transmitting the content of the video to the one or more users; and

    said computer dividing the overall bandwidth B into a first bandwidth part B1 and a second bandwidth part B2 such that B=B1+B2, wherein the first bandwidth part B1 is allocated to a normal play mode of the video during the N sessions such that B1=N*R, wherein R is a bit transmission rate of the video, and wherein the second bandwidth part B2 is allocated to unicast sessions dedicated to implementation of at least one non-normal streaming mode of the video.

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