Adaptive persistent push

Patent metadata

Field	Value
Publication number	US-10554773-B2
Application number	US-201515317917-A
Country	US
Kind code	B2
Filing date	Jun 8, 2015
Priority date	Jun 12, 2014
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

A method for providing resources to a client, the method being implemented at a server and comprising: making available an indication to the client, indicating that the server is configured to activate a persistent push feature upon authorization of said client, said persistent push feature allowing the server to push resources to the client at any time; and receiving a first message from the client, said first message being based on said indication and allowing the server to continuously push resources to the client.

First claim

The invention claimed is:

1. A method for providing resources to a client, the method being implemented at a server and comprising:
making available an indication to the client, indicating that the server is configured to activate a predetermined push feature upon authorization of the client, the predetermined push feature allowing the server to continuously push resources to the client, the push feature being compliant with HTTP/2 protocol; and
receiving a first message from the client, the first message being based on the indication and authorizing the server to continuously push resources to the client; and
sending a promise message to the client, the promise message enabling the client to be informed in advance of data the server intends to push,
wherein the server determines whether to activate the predetermined push feature based on a specific set of resources included in the first message.

2. The method of claim 1 , wherein the first message allowing the server to continuously push resources is received through a first client-initiated stream.

3. The method of claim 2 , further comprising maintaining continuously open the first client-initiated stream or a second client-initiated stream, for sending at least one second message for initiating the push of resources to the client, through the first client-initiated stream maintained open or the second client-initiated stream maintained open.

4. The method of claim 3 , further comprising pushing the resources through at least one server-initiated stream.

5. The method of claim 1 , further comprising a step of canceling at least a set of promised resources upon identification of a predetermined push modification event, the promised resources being resources that are to be pushed as a function of receiving the indication.

6. The method of claim 5 , wherein the step of canceling at least a set of promised resources comprises the step of sending a message comprising an abnormal termination item of information on at least one stream corresponding to at least one promised resource.

7. The method of claim 1 , further comprising receiving a first control message from the client, for adapting a predetermined push policy to be applied by the server when pushing resources.

8. The method of claim 7 , wherein the first message allowing the server to continuously push resources and the first control message are received through a first client-initiated stream, the method further comprising sending a second control message to the client, through the first client-initiated stream or through the second client-initiated stream, and the second control message comprising one of the following elements: time information, kinds of resources about to be pushed, availability of new resources.

9. The method of claim 7 , further comprising a step of canceling at least a set of promised resources upon identification of a predetermined push modification event, the promised resources being resources that are to be pushed as a function of receiving the indication, and wherein the first control message comprises an item of data representing the predetermined push modification event.

10. The method of claim 7 , wherein the first message also comprises information about the predetermined push policy.

11. The method of claim 1 , further comprising receiving a request from the client for a given resource, and in response, sending the requested resource in which the indication is included.

12. The method of claim 1 , wherein the resources to push are media segments, wherein the first message is a control frame that does not identify a specific media segment to push.

13. The method of claim 1 , wherein the push feature enables the server to continuously create new streams for pushing resources to the client, without receiving further requests from the client.

14. The method of claim 1 , further comprising, upon receiving the first message, initiating a persistent connection between the server and the client, wherein the promise message is sent through the persistent connection.

15. A method for obtaining resources from a server, the method being implemented at a client and comprising:
generating a first message based on an indication that the server is configured to activate a predetermined push feature upon authorization of the client, the predetermined push feature allowing the server to continuously push resources to the client, the push feature being compliant with HTTP/2 protocol; and
sending the first message to the server, thereby allowing the server to continuously push resources to the client; and
receiving a promise message from the server, the promise message enabling the client to be informed in advance of data the server intends to push,
wherein the server determines whether to activate the predetermined push feature based on a specific set of resources included in the first message.

16. The method of claim 15 , wherein the first message allowing the server to continuously push resources is sent through a first client-initiated stream.

17. The method of claim 16 , further comprising receiving at least one second message for initiating the push of resources to the client, through the first client-initiated stream maintained continuously open by the server or a second client-initiated stream maintained continuously open by the server.

18. The method of claim 17 , further comprising receiving the pushed resources through at least one server-initiated stream.

19. The method of claim 15 , further comprising generating and sending at least one first control message to the server, for adapting a predetermined push policy to be applied by the server when pushing resources.

20. The method of claim 19 , wherein the first control message is sent through the first client-initiated stream, the method further comprising receiving a second control message from the server, through the first client-initiated stream or through the second client-initiated stream, and the second control message comprising one of the following elements: time information, kinds of resources about to be pushed, availability of new resources.

21. The method of claim 19 , further comprising the step of canceling at least a set of promised resources as a function of the at least one first control message to be sent to the server, the promised resources being resources for which promised data has not already been received.

22. The method of claim 19 , wherein the first message also comprises information about the predetermined push policy.

23. The method of claim 15 , further comprising sending a request for a given resource to the server, and in response, receiving the requested resource in which the indication is included.

Assignees

• Canon Kk

Inventors

• Maze Frédéric
• Bellessort Romain
• Fablet Youenn

Classifications

• H04L69/24

  Negotiation of communication capabilities · CPC title

• G06F16/951

  Indexing; Web crawling techniques · CPC title

• H04L67/02 Primary

  based on web technology, e.g. hypertext transfer protocol [HTTP] · CPC title

• H04L67/147

  Signalling methods or messages providing extensions to protocols defined by standardisation · CPC title

• H04L69/16

  Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] · CPC title