CA2597850A1 - Playout-dependent unicast streaming of digital video content - Google Patents

Playout-dependent unicast streaming of digital video content Download PDF

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Publication number
CA2597850A1
CA2597850A1 CA002597850A CA2597850A CA2597850A1 CA 2597850 A1 CA2597850 A1 CA 2597850A1 CA 002597850 A CA002597850 A CA 002597850A CA 2597850 A CA2597850 A CA 2597850A CA 2597850 A1 CA2597850 A1 CA 2597850A1
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CA
Canada
Prior art keywords
client
unicast
stream
playout
unicast stream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002597850A
Other languages
French (fr)
Other versions
CA2597850C (en
Inventor
Paul Sherer
Kirk Blattman
Danny M. Nessett
David Yates
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cisco Technology Inc
Original Assignee
Arroyo Video Solutions, Inc.
Paul Sherer
Kirk Blattman
Danny M. Nessett
David Yates
Arroyo Video Solutions Llc
Cisco Technology, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arroyo Video Solutions, Inc., Paul Sherer, Kirk Blattman, Danny M. Nessett, David Yates, Arroyo Video Solutions Llc, Cisco Technology, Inc. filed Critical Arroyo Video Solutions, Inc.
Publication of CA2597850A1 publication Critical patent/CA2597850A1/en
Application granted granted Critical
Publication of CA2597850C publication Critical patent/CA2597850C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1881—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with schedule organisation, e.g. priority, sequence management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/613—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for the control of the source by the destination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H04L65/765—Media network packet handling intermediate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/142—Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/143—Termination or inactivation of sessions, e.g. event-controlled end of session
    • H04L67/145—Termination or inactivation of sessions, e.g. event-controlled end of session avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6408—Unicasting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources

Abstract

A technique for managing the streaming of digital video content involves providing a unicast stream to a client in response to the play out status of the unicast stream at the client. In particular, a unicast stream is provided to a client based on whether or not the unicast stream is intended for real-time playout at the client. In order to preserve valuable network resources, if the client does not intend the unicast stream for real-time playout, the unicast stream is not provided to the client. Network resources can also be conserved by utilizing one session between a stream server and a client to support more than one active unicast stream between the stream server and the client in the case where at least one of the active unicast streams is not intended for real-time playout at the client.

Claims (25)

1. A method for managing the streaming of digital media content in a network that is capable of streaming digital media content to clients via multicasting and unicasting, the method comprising:
establishing a unicast stream for a client; and providing the unicast stream to the client in response to a playout status of the unicast stream at the client.
2. The method of claim 1 further comprising:
establishing a second unicast stream for the client, the two unicast streams being concurrent with each other; and streaming to the client only the unicast stream that is intended for real-time playout by the client.
3. The method of claim 1 wherein the unicast stream is provided to the client only if the unicast stream is intended for real-time playout at the client.
4. The method of claim 1 wherein the unicast stream is not provided to the client if the unicast stream is not intended for real-time playout at the client.
5. The method of claim 1 further including establishing a session to secure the resources necessary to provide the unicast stream to the client.
6. The method of claim 5 further comprising:
establishing a second unicast stream for the client, the two unicast streams being concurrent with each other; and streaming to the client, using the session, only the unicast stream that is intended for real-time playout by the client.
7. The method of claim 6 further comprising preventing from being provided to the client whichever of the two unicast streams is not intended for real-time playout at the client.
8. The method of claim 7 wherein the preventing comprises idling the unicast stream that is not intended for real-time playout at the client.
9. The method of claim 8 further comprising, if the unicast stream is subsequently provided to the client in response to a change in the playout status of the unicast stream at the client, then starting the unicast stream from the point at which the unicast stream was idled.
10. The method of claim 6 wherein the preventing comprises idling the unicast stream that is not intended for real-time playout for a pre-established period of time and then allowing the unicast stream to progress in time after the pre-established period of time expires.
11. The method of claim 7 wherein the preventing comprises allowing out the unicast stream that is not intended for real-time playout at the client to progress in time.
12. The method of claim 11 further comprising, if the unicast stream is subsequently provided to the client in response to a change in the playout status of the unicast stream at the client, then starting the unicast stream from its current time-progressed position.
13. Processor-accessible storage media comprising processor-executable instructions, that when executed, direct a computer system to perform the method as recited in claim 1.
14. A method for managing the streaming of digital media content in a network that is capable of streaming digital media content to clients via multicasting and unicasting, the method comprising:
establishing a unicast stream for a client; and deciding whether to provide the unicast stream to the client in response to a playout status of the unicast stream at the client.
15. The method of claim 14 further comprising:
establishing a second unicast stream for the client, the two unicast streams being concurrent with each other; and streaming to the client only the unicast stream that is intended for real-time playout by the client.
16. The method of claim 14 further comprising:
establishing a session to secure the resources necessary to provide the unicast stream to the client;
establishing a second unicast stream for the client, the two unicast streams being concurrent with each other; and streaming to the client, using the session, only the unicast stream that is intended for real-time playout by the client.
17. A method for managing the streaming of digital video content in a network that is capable of streaming digital video content to clients via multicasting and unicasting, the method comprising:
establishing m unicast streams for a client, the client being configured to playout only n streams at a time in real-time, where m is greater than n;
and refraining from streaming, to the client, one of the m unicast streams that is not intended for real-time playout by the client.
18. The method of claim 17 wherein m is greater than 1.
19. A method for managing the streaming of digital media content in a network that is capable of streaming digital media content to clients via multicasting and unicasting, the method comprising:
establishing m unicast streams for a client, wherein the client intends to playout only n streams at a time in real-time and m is greater than n; and deciding whether to provide the m unicast streams to the client in response to a playout status of each of the m unicast streams at the client.
20. The method of claim 19 wherein m is greater than 1.
21. A system for managing the streaming of digital media content in a network that is capable of streaming digital media content to clients via multicasting and unicasting, the system comprising:
a stream server configured to establish a unicast stream for a client;
and a playout-dependent stream controller configured to provide the unicast stream to the client in response to a playout status of the unicast stream at the client.
22. The system of claim 21 wherein the stream server is configured to establish a second unicast stream for the client, the two unicast streams being concurrent with each other and wherein the playout-dependent stream controller is further configured to allow streaming to the client only the unicast stream that is intended for real-time playout by the client.
23. The system of claim 21 wherein the playout-dependent stream controller is further configured to provide the unicast stream to the client only if the unicast stream is intended for real-time playout at the client.
24. The system of claim 21 wherein the playout-dependent stream controller is further configured to not provide the unicast stream to the client if the unicast stream is not intended for real-time playout at the client.
25. The system of claim 19 wherein the stream server is further configured to establish a session to secure the resources necessary to provide the unicast stream to the client and to establish a second unicast stream for the client, the two unicast streams being concurrent with each other, and wherein the playout-dependent stream controller is further configured to allow streaming to the client, using the session, only the unicast stream that is intended for real-time playout by the client.
CA2597850A 2005-02-23 2006-02-23 Playout-dependent unicast streaming of digital video content Expired - Fee Related CA2597850C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US65532805P 2005-02-23 2005-02-23
US60/655,328 2005-02-23
PCT/US2006/006731 WO2006091886A2 (en) 2005-02-23 2006-02-23 Playout-dependent unicast streaming of digital video content

Publications (2)

Publication Number Publication Date
CA2597850A1 true CA2597850A1 (en) 2006-08-31
CA2597850C CA2597850C (en) 2012-08-28

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US (3) US8935313B2 (en)
EP (1) EP1854018B1 (en)
CA (1) CA2597850C (en)
WO (1) WO2006091886A2 (en)

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WO2006091886A3 (en) 2008-01-10
US20060200575A1 (en) 2006-09-07
US20060200558A1 (en) 2006-09-07
WO2006091886A2 (en) 2006-08-31
US20060200578A1 (en) 2006-09-07
US8452885B2 (en) 2013-05-28
EP1854018A4 (en) 2009-04-22
US8935313B2 (en) 2015-01-13
CA2597850C (en) 2012-08-28
EP1854018A2 (en) 2007-11-14

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