Apparatus and method for controlling TCP connections in a wireless communication system

Patent metadata

Field	Value
Publication number	US-10448329-B2
Application number	US-201715813201-A
Country	US
Kind code	B2
Filing date	Nov 15, 2017
Priority date	Sep 2, 2014
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

The present disclosure relates to an apparatus and a method for controlling Transmission Control Protocol (TCP) connection close to improve a battery life time of a client such as a smart phone in a wireless communication system are provided. A method of operating a client in a wireless communication system includes determining a data transfer inactivity time of at least one of TCP connections, and closing the at least one of TCP connections at the data transfer inactivity time.

First claim

What is claimed is:

1. A method of operating a client in a wireless communication system, comprising:
identifying a first transmission control protocol (TCP) connection and a second TCP connection that are established for the client, wherein the first TCP connection is different from the second TCP connection;
identifying an initiation of a close for the first TCP connection, wherein the first TCP connection is maintained in response to the initiation of the close for the first TCP connection;
identifying an initiation of a close for the second TCP connection during the maintenance of the first TCP connection after the initiation of the close for the first TCP connection; and
closing both the first TCP connection and the second TCP connection in response to the initiation of the close for the second TCP connection.

2. The method of claim 1 , wherein the identifying of the first TCP connection comprises:
identifying the first TCP connection in response to a close message received from a server.

3. The method of claim 1 , wherein a guard time period of the first TCP connection is greater than a predetermined reference time.

4. The method of claim 1 , wherein a guard time period of the first TCP connection is not greater than a predetermined reference time, further comprising closing the first TCP connection at an end of the guard time period.

5. The method of claim 4 , wherein the guard time period is determined based on a first time period and a second time period, and wherein:
the first time period is a period of time from a transmission time of a request to a reception time of a response to the request, and
the second time period is a period of time from the reception time of the response to a transmission time of a next request.

6. The method of claim 4 , wherein the guard time period is ahead of a server-initiated first TCP connection close time.

7. The method of claim 6 , wherein the server-initiated first TCP connection close is performed in response to a message indicating a close of the first TCP connection received from a server.

8. An apparatus of a client in a wireless communication system, comprising:
at least one processor configured to:
identify a first transmission control protocol (TCP) connection and a second TCP connection that are established for the client, wherein the first TCP connection is a different from the second TCP connection;
identify an initiation of a close for the first TCP connection, wherein the first TCP connection is maintained in response to the initiation of the close for the first TCP connection;
identify an initiation of a close for the second TCP connection during the maintenance of the first TCP connection after the initiation of the close for the first TCP connection; and
close both the first TCP connection and the second TCP connection in response to the initiation of the close for the second TCP connection.

9. The apparatus of claim 8 , wherein the at least one processor is further configured to identify the first TCP connection in response to a close message received from a server.

10. The apparatus of claim 8 , wherein a guard time period of the first TCP connection is greater than a predetermined reference time.

11. The apparatus of claim 8 , wherein a guard time period of the first TCP connection is not greater than a predetermined reference time, and
wherein the at least one processor is further configured to close the first TCP connection at an end of the guard time period.

12. The apparatus of claim 11 , wherein the guard time period is determined based on a first time period and a second time period, and wherein:
the first time period is a period of time from a transmission time of a request to a reception time of a response to the request, and
the second time period is a period of time from the reception time of the response to a transmission time of a next request.

13. The apparatus of claim 11 , wherein the guard time period is ahead of a server-initiated first TCP connection close time.

14. The apparatus of claim 13 , wherein the server-initiated first TCP connection close is performed in response to a message indicating a close of the first TCP connection received from a server.

15. The method of claim 1 , further comprising:
determining whether an end of a guard time period for the first TCP connection is later than or ahead of a reference time; and
closing the first TCP connection in response to an expiration of the guard time period when the end of the guard time period is ahead of the reference time,
wherein the closing of both the first TCP connection and the second TCP connection comprises closing both of the first TCP connection and the second TCP connection in response to the initiation of the close for the second TCP connection when the end of the guard time period is later than the reference time,
wherein the guard time period is determined based on a first time period and a second time period, and
wherein the first time period is a period of time from a transmission time of a request to a reception time of a response to the request, and the second time period is a period of time from the reception time of the response to a transmission time of a next request.

16. The apparatus of claim 8 , wherein the at least one processor is further configured to:
determine whether an end of a guard time period for the first TCP connection is later than or ahead of a reference time,
close the first TCP connection in response to an expiration of the guard time period when the end of the guard time period is ahead of the reference time, and
close both of the first TCP connection and the second TCP connection in response to the initiation of the close for the second TCP connection when the end of the guard time period is later than the reference time,
wherein the guard time period is determined based on a first time period and a second time period, and
wherein the first time period is a period of time from a transmission time of a request to a reception time of a response to the request, and the second time period is a period of time from the reception time of the response to a transmission time of a next request.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Hong Young-Ki
• Arunachalam Karthikeyan
• Sahu Rana Prasad
• Alagappan Muthu Veerappan
• Lee Jin-Ho

Classifications

• H04W52/0225 Primary

  using monitoring of external events, e.g. the presence of a signal · CPC title

• H04W76/34

  Selective release of ongoing connections · CPC title

• H04W76/38

  triggered by timers · CPC title

• Y02D30/30

  Cross-Sectional Technologies · mapped topic

• Y02D70/1262

  Cross-Sectional Technologies · mapped topic