INFORMATION PROCESSING APPARATUS, PROGRAM, AND CONTROL METHOD

• US 20150120882A1
• Filed: 05/13/2013
• Published: 04/30/2015
• Est. Priority Date: 05/30/2012
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Okubo, Yuzuru
• Granted Patent: US 10,791,202 B2
• Time in Patent Office: Days
• US Class Current: 709/219
• CPC Class Codes: H04L 47/6275 based on priority
• CPC Class Codes: H04L 47/6285 Provisions for avoiding starvation of low priority queues
• CPC Class Codes: H04L 47/629 Ensuring fair share of resources, e.g. weighted fair queuing [WFQ]
• CPC Class Codes: H04L 65/60 Network streaming of media packets
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

Abstract

If a plurality of streams and an environment in which a dependent relationship exists between the streams are assumed, fairness may not be maintained by a conventional technique. The priority of a stream is determined by the dependent relationship between the streams.

Claims

1. An information processing apparatus comprising:

a setting unit configured to set a maximum frame size of a second stream which is a second logical channel of a communication protocol smaller than a maximum frame size of a first stream which is a parent stream of the second stream and a first logical channel of the communication protocol, and

a transmission unit configured to transmit the first and second frames.

2. The information processing apparatus according to claim 1, wherein the information processing apparatus makes the processing time of the first stream longer than that of the second stream.

3. The information processing apparatus according to claim 1, wherein, if a priority of the first stream is a first priority and there is no stream higher in priority than the first stream, wherein the information processing apparatus changes the priority of the first stream to a second priority higher than the first priority.

4. The information processing apparatus according to claim 1, wherein processing for waiting for a TCP connection request and processing for requesting a TCP connection are performed by one module.

5. The information processing apparatus according to claim 1, wherein, if the priority of the first stream is the lowest in a range of priorities of the communication protocol, the setting unit sets the priority of the second stream equal to the priority of the first stream.

6. The information processing apparatus according to claim 1, wherein the information processing apparatus inputs the priority of the first stream to a header of an IP packet including a frame of the first stream, and inputs the priority of the second stream to a header of an IP packet including a frame of the second stream.

7. An information processing method, comprising:

setting a maximum frame size of a second stream which is a second logical channel of a communication protocol smaller than a maximum frame size of a first stream which is a parent stream of the second stream and a first logical channel of the communication protocol, and

transmitting the first and second frames.

8. The method according to claim 7, further comprising making the processing time of the first stream longer than that of the second stream.

9. The method according to claim 7, wherein, if the priority of the first stream is a first priority and there is no stream higher in priority than the first stream, changing the priority of the first stream to a second priority higher than the first priority.

10. The method according to claim 7, further comprising performing processing for waiting a TCP connection request and processing for requesting a TCP connection are one module.

11. The method according to claim 7, wherein, if the priority of the first stream is the lowest in a range of priorities of the communication protocol, setting the priority of the second stream equal to the priority of the first stream.

12. The method according to claim 7, further comprising inputting the priority of the first stream to a header of an IP packet including a frame of the first stream and inputs the priority of the second stream to a header of an IP packet including a frame of the second stream.

13. A non-transitory storage medium storing a program executable by a computer to perform the method according to claim 7.