Optimizing traffic by controlling keep-alives

• US 9,800,511 B2
• Filed: 12/09/2016
• Issued: 10/24/2017
• Est. Priority Date: 05/31/2013
• Status: Expired due to Fees

• Current Assignee: Seven Networks LLC (SoftBank Group Corp.)
• Original Assignee: Seven Networks LLC (SoftBank Group Corp.)
• Inventors: Backholm, Ari, Kokhanovskyi, Andrii, Fleming, Michael, Yoon, Sungwook
• Primary Examiner(s): Jangbahadur, Lakeram
• Application Number:
  US15/374,136
• Publication Number:
  US 20170093735A1
• Time in Patent Office: 319 Days
• CPC Class Codes: H04L 45/026 Details of "hello" or keep-alive messages
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 47/323 Discarding or blocking control packets, e.g. ACK packets
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 52/228 using past power values or information
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 76/25 Maintenance of established connections

Abstract

A system, method and non-transitory computer code for operating a proxy server operating under software to cause the proxy server to access a communication network and to delay, advance or block keep-alives for a client device to improve traffic data flow.

Claims

1. A method comprising:

at a mobile device;

intercepting a keepalive message sent from an application executing on the mobile device to a remote entity as part of a transaction;

determining whether to delay the keepalive message by sending the keepalive message to a delay pool buffer;

determining whether to flush the keepalive message delay pool buffer;

setting a timer to a predetermined time, wherein the timer is associated with a keepalive message delay pool buffer, and

determining whether a radio on the mobile device is up;

wherein determining whether to delay the keepalive message includes;

determining whether the timer has fired;

in response to a determination that the radio is not up and a determination that the timer has not fired, sending the keepalive message to the keepalive message delay pool buffer; and

setting the timer to a maximum time allowed without harming communications between the mobile device and the remote entity,

wherein determining whether to flush the keepalive delay pool buffer includes, in response to a determination that the radio is up, flushing the keepalive delay pool buffer.

2. The method of claim 1, wherein the maximum time corresponds to a time associated with the oldest keepalive message in the keepalive message delay pool buffer.

3. The method of claim 1, wherein the timer is based on mobile device decay times.

4. The method of claim 1, wherein the timer is based on a time associated with a network tearing down a dormant connection through which the keepalive messages are sent.

5. The method of claim 1, wherein the timer is based on a time that the mobile device will await receipt of an acknowledgment message before the mobile device times out.

6. A mobile device comprising:

a processor;

a memory;

a communications interface;

the processor being configured to;

intercept a keepalive message sent from an application executing on the mobile device to a remote entity as part of a transaction;

determine whether to delay the keepalive message by sending the keepalive message to a keepalive message delay pool buffer;

determine whether to flush the keepalive delay pool buffer;

set a timer to a predetermined time, wherein the timer is associated with the keepalive message delay pool buffer; and

determine whether a radio on the mobile device is up;

wherein to determine whether to delay the keepalive message includes the processor configured to;

determine whether the timer has fired;

in response to a determination that the radio is not up and a determination that the timer has not fired, send the keepalive message to the keepalive message delay pool buffer; and

set the timer to a maximum time allowed without harming communications between the mobile device and the remote entity,

wherein to determine whether to flush the keepalive delay pool buffer includes the processor configured to, in response to a determination that the radio is up, flush the keepalive delay pool buffer.

7. The mobile device of claim 6, wherein the maximum time corresponds to a time associated with the oldest keepalive message in the keepalive message delay pool buffer.

8. The mobile device of claim 6, wherein the timer is based on mobile device decay times.

9. The mobile device of claim 6, wherein the timer is based on a time associated with a network tearing down a dormant connection through which the keepalive messages are sent.

10. The mobile device of claim 6, wherein the timer is based on a time that the mobile device will await receipt of an acknowledgment message before the mobile device times out.

11. A computer program product comprising:

a non-transitory computer readable storage medium;

a computer readable program code configured to;

intercept a keepalive message sent from an application executing on a mobile device to a remote entity as part of a transaction;

determine whether to delay the keepalive message by sending the keepalive message to a keepalive message delay pool buffer;

determine whether to flush the keepalive delay pool buffer;

set a timer to a predetermined time, wherein the timer is associated with the keepalive message delay pool buffer;

determine whether a radio on the mobile device is up;

wherein to determine whether to delay the keepalive message includes the program code configured to;

wherein determining whether to delay the keepalive message including;

determine whether the timer has fired;

in response to a determination that the radio is not up and a determination that the timer has not fired, send the keepalive message to the keepalive message delay pool buffer; and

set the timer to a maximum time allowed without harming communications between the mobile device and the remote entity,

wherein to determine whether to flush the keepalive delay pool buffer includes the program code configured to, in response to a determination that the radio is up, flush the keepalive delay pool buffer.

12. The computer program product of claim 11, wherein the maximum time corresponds to a time associated with the oldest keepalive message in the keepalive message delay pool buffer.

13. The computer readable program code of claim 11, wherein the timer is based on mobile device decay times.

14. The computer readable program code of claim 11, wherein the timer is based on a time associated with a network tearing down a dormant connection through which the keepalive messages are sent.

15. The computer readable program code of claim 11, wherein the timer is based on a time that the mobile device will await receipt of an acknowledgment message before the mobile device times out.