TRANSMISSION CONTROL PROTOCOL (TCP) THROUGHPUT OPTIMIZATION IN MOBILE WIRELESS NETWORKS

• US 20130013791A1
• Filed: 07/08/2011
• Published: 01/10/2013
• Est. Priority Date: 07/08/2011
• Status: Active Grant

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Inventors: KOTECHA, Lalit R., YANG, Jin
• Granted Patent: US 9,479,617 B2
• Time in Patent Office: Days
• US Class Current: 709/227
• CPC Class Codes: H04L 47/196 Integration of transport layer protocols, e.g. TCP and UDP
• CPC Class Codes: H04L 47/27 Evaluation or update of window size, e.g. using information derived from acknowledged [ACK] packets
• CPC Class Codes: H04L 47/40 using split connections
• CPC Class Codes: H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
• CPC Class Codes: H04W 28/0231 based on communication conditions dynamic wireless traffic scheduling definition based on channel quality criteria H04W72/54
• CPC Class Codes: H04W 36/023 Buffering or recovering information during reselection
• CPC Class Codes: H04W 36/16 Performing reselection for specific purposes

Abstract

A device establishes a first transmission control protocol (TCP) connection with a client device associated with a wireless network, and establishes a second TCP connection with a server device associated with the wireless network. The device also provides a first TCP window size to the client device via the first TCP connection, and provides a second TCP window size to the server device via the second TCP connection, where the first TCP window size is different than the second TCP window size.

Claims

1. A method, comprising:

establishing, by a device, a first transmission control protocol (TCP) connection with a client device associated with a wireless network;

establishing, by the device, a second TCP connection with a server device associated with the wireless network;

providing, by the device, a first TCP window size to the client device via the first TCP connection; and

providing, by the device, a second TCP window size to the server device via the second TCP connection, where the first TCP window size is different than the second TCP window size.

2. The method of claim 1, where the client device and the server device exchange information via the first TCP connection and the second TCP connection.

3. The method of claim 1, further comprising:

establishing multiple TCP connections with the client device, where the first TCP connection is one of the multiple TCP connections;

receiving radio conditions and a throughput associated with the client device;

analyzing, based on at least one of the radio conditions or the throughput, the multiple TCP connections; and

adjusting, based on the analysis, priorities of traffic provided on the multiple TCP connections.

4. The method of claim 1, further comprising:

throttling traffic received from the server device when a throughput of the client device is less than a throughput of the server device.

5. The method of claim 4, where throttling the traffic received from the server device includes:

delaying transmission of TCP acknowledgment packets to the server device, where the delayed transmission of the TCP acknowledgment packets causes the server device to decrease transmission of the traffic to the device.

6. The method of claim 4, where throttling the traffic received from the server device includes:

reporting artificial packet loss to the server device, where the artificial packet loss causes the server device to decrease transmission of the traffic to the device.

7. A method, comprising:

receiving, by a device, a handover start indication associated with a client device of a wireless network;

stopping, by the device, downlink traffic to the client device based on the handover start indication;

storing the downlink traffic, received from a server device of the wireless network, in a buffer associated with the device;

receiving, by the device, a handover complete indication associated with the client device; and

resuming, by the device, the downlink traffic to the client device based on the handover complete indication.

8. The method of claim 7, further comprising:

providing the downlink traffic, stored in the buffer, to the client device when the handover complete indication is received.

9. The method of claim 7, further comprising:

throttling the downlink traffic received from the server device based on a size of the buffer.

10. The method of claim 9, where throttling the downlink traffic received from the server device includes:

delaying transmission of TCP acknowledgment packets to the server device, where the delayed transmission of the TCP acknowledgment packets causes the server device to decrease transmission of the downlink traffic.

11. The method of claim 9, where throttling the downlink traffic received from the server device includes:

reporting artificial packet loss to the server device, where the artificial packet loss causes the server device to decrease transmission of the downlink traffic.

12. A device, comprising:

a memory to store a plurality of instructions; and

a processor to execute instructions in the memory to;

establish a first transmission control protocol (TCP) connection with a client device associated with a wireless network,

establish a second TCP connection with a server device associated with the wireless network,

provide a first TCP window size to the client device via the first TCP connection, and

provide a second TCP window size to the server device via the second TCP connection, where the first TCP window size is different than the second TCP window size.

13. The device of claim 12, where the client device and the server device exchange information via the first TCP connection and the second TCP connection.

14. The device of claim 12, where the processor is further to execute instructions in the memory to:

establish multiple TCP connections with the client device, where the first TCP connection is one of the multiple TCP connections,

receive radio conditions and a throughput associated with the client device,

analyze, based on at least one of the radio conditions or the throughput, the multiple TCP connections, and

assign, based on the analysis, equivalent priorities to traffic provided on the multiple TCP connections.

15. The device of claim 12, where the processor is further to execute instructions in the memory to:

throttle traffic received from the server device when a throughput of the client device is less than a throughput of the server device.

16. The device of claim 15, where, when throttling the traffic received from the server device, the processor is further to execute instructions in the memory to:

delay transmission of TCP acknowledgment packets to the server device, where the delayed transmission of the TCP acknowledgment packets causes the server device to decrease transmission of the traffic to the device.

17. The device of claim 15, where, when throttling the traffic received from the server device, the processor is further to execute instructions in the memory to:

report artificial packet loss to the server device, where the artificial packet loss causes the server device to decrease transmission of the traffic to the device.

18. A device, comprising:

a memory to store a plurality of instructions; and

a processor to execute instructions in the memory to;

receive a handover start indication associated with a client device of a wireless network,

stop downlink traffic to the client device based on the handover start indication,

store the downlink traffic, received from a server device of the wireless network, in a buffer associated with the memory,

receive a handover complete indication associated with the client device, and

resume the downlink traffic to the client device based on the handover complete indication.

19. The device of claim 18, where the processor is further to execute instructions in the memory to:

provide the downlink traffic, stored in the buffer, to the client device when the handover complete indication is received.

20. The device of claim 18, where the processor is further to execute instructions in the memory to:

throttle the downlink traffic received from the server device based on a size of the buffer.

21. The device of claim 20, where, when throttling the downlink traffic received from the server device, the processor is further to execute instructions in the memory to:

delay transmission of TCP acknowledgment packets to the server device, where the delayed transmission of the TCP acknowledgment packets causes the server device to decrease transmission of the downlink traffic.

22. The device of claim 20, where, when throttling the downlink traffic received from the server device, the processor is further to execute instructions in the memory to:

report artificial packet loss to the server device, where the artificial packet loss causes the server device to decrease transmission of the downlink traffic.