Reception apparatus and method and program

• US 8,121,151 B2
• Filed: 01/18/2007
• Issued: 02/21/2012
• Est. Priority Date: 01/26/2006
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kojima, Toshiaki
• Primary Examiner(s): Ferris, Derrick
• Assistant Examiner(s): Cheng, Peter
• Application Number:
  US11/624,458
• Publication Number:
  US 20070171829A1
• Time in Patent Office: 1,860 Days
• Field of Search: 370/465, 370471- 2, 370/474, 370/476, 370/473
• US Class Current: 370/473
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields

Abstract

A decider decides whether a predetermined period of time has elapsed after a last one of first packets was received and a timeout thereby occurs. A second packet having a size of data greater than a size of data placed in each of the first packets is produced from a number of the first packets, the number being a first threshold value. Another decider decides, when the predetermined period of time has elapsed, whether a number of times by which the predetermined period of time has successively elapsed exceeds a second threshold value which is a permitted number of times of the timeout. A processing unit sets, when the second threshold value is exceeded by the number of times that the predetermined period of time has successively elapsed, the first threshold value so as to decrement the number of the first packets to be used to produce the second packet.

Claims

1. A reception apparatus for receiving first packets, the reception apparatus comprising:

a communication section to receive the first packets through a network responsive to an application layer request; and

a processing unit configured to determine whether a number of the first packets received through the network exceeds a first threshold value which is a number of the first packets used when a second packet having a size of data greater than a size of data placed in each of the first packets is produced from the first packets,

said processing unit further configured to determine, in response to said processing unit determining that the first threshold value is not exceeded by the number of the first packets received through the network, whether a predetermined period of time has elapsed after a last one of the first packets received through the network was received,

said processing unit further configured to determine, in response to said processing unit determining that the predetermined period of time has elapsed after the last one of the first packets received through the network was received, whether a number of times, by which the predetermined period of time has successively elapsed after the last one of the first packets received through the network was received, exceeds a second threshold value,

said processing unit further configured to set, in response to said processing unit determining that the second threshold value is exceeded by the number of times that the predetermined period of time has successively elapsed after the last one of the first packets received through the network was received, the first threshold value to decrement the number of the first packets to be used to produce the second packet.

2. The reception apparatus according to claim 1, wherein the processing unit is further configured to produce, when said processing unit determines that the second threshold value is not exceeded by the number of times that the predetermined period of time has successively elapsed, the second packet from the first packets and pass a processing to said application layer.

3. The reception apparatus according to claim 1, wherein, when said processing unit determines that the second threshold value is exceeded by the number of times that the predetermined period of time has successively elapsed, said processing unit sets the first threshold value to decrement the number of the first packets to be used to produce the second packet by one.

4. The reception apparatus according to claim 1, wherein said processing unit is configured to set initial values for the first threshold value, the second threshold value and the predetermined period of time.

5. A reception method for a packet reception apparatus for receiving first packets, the reception method comprising:

receiving the first packets through a network in response to a request from an application layer;

deciding whether a number of the first packets received through the network exceeds a first threshold value which is a number of the first packets used when a second packet having a size of data greater than a size of data placed in each of the first packets is produced from the first packets;

deciding, in response to a decision that the first threshold value is not exceeded by the number of first packets received through the network, whether a predetermined period of time has elapsed after a last one of the first packets was received through the network;

deciding, in response to a decision that the predetermined period of time has elapsed after the last one of the first packets was received through the network, whether a number of times, by which the predetermined period of time has successively elapsed after the last one of the first packets received through the network was received, exceeds a second threshold value; and

setting, with the packet reception apparatus, upon a decision that the second threshold value is exceeded by the number of times that the predetermined period of time has successively elapsed after the last one of the first packets received through the network was received, the first threshold value to decrement the number of the first packets to be used to produce the second packet.

6. A computer-readable, non-transitory medium encoded with a program, which, when executed by a computer, causes the computer to perform a processing for receiving first packets, the processing comprising:

receiving the first packets through a network in response to a request from an application layer;

deciding whether a number of the first packets received through the network exceeds a first threshold value which is a number of the first packets used when a second packet having a size of data greater than a size of data placed in each of the first packets is produced from the first packets;

deciding, in response to a decision that the first threshold value is not exceeded by the number of first packets received through the network, whether a predetermined period of time has elapsed after a last one of the first packets was received through the network;

deciding, in the response to a decision that the predetermined period of time has elapsed after the last one of the first packets was received through the network, whether a number of times, by which the predetermined period of time has successively elapsed after the last one of the first packets received through the network was received, exceeds a second threshold value; and

setting, upon a decision that the second threshold value is exceeded by the number of times that the predetermined period of time has successively elapsed after the last one of the first packets received through the network was received, the first threshold value to decrement the number of the first packets to be used to produce the second packet.