Buffer control for multi-transport architectures

• US 9,825,863 B2
• Filed: 02/27/2008
• Issued: 11/21/2017
• Est. Priority Date: 02/27/2008
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Palin, Arto, Tuupola, Juha-Matti, Eriksson, Timo, Reunamki, Jukka
• Primary Examiner(s): HSU, ALPUS
• Application Number:
  US12/920,041
• Publication Number:
  US 20110002344A1
• Time in Patent Office: 3,555 Days
• Field of Search: None
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/193 at the transport layer, e.g. TCP related
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04L 49/9036 Common buffer combined with individual queues
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A system and method for automating connection management in a manner that may be transparent to any actively communicating applications operating in a Network on Terminal Architecture (NoTA). An application level entity may access another node by making a request to a high level communication structure via an interface. The high level structure may interact with a lower level structure configured to manage communication by establishing communication with another device via one or more transports. In at least one embodiment, provisions may be made to guard against data being lost when a transport fails, including storing data that is passed from a transport-independent buffer to a transport-specific buffer in case the transport fails. When a failure occurs, the stored data may readily be forwarded for sending using another transport.

Claims

1. A method, comprising:

passing information from a transport-independent data buffer to a first transport-specific data buffer, wherein a copy of the passed information is maintained in the transport-independent data buffer in a transport-independent format;

transmitting the information from the first transport-specific data buffer to an intended recipient via a transport corresponding to the first transport-specific data buffer;

verifying the information transmitted via the transport was successfully received by the intended recipient based on a receipt confirmation received via the transport;

if the information transmitted was successfully received, deleting the copy of the passed information maintained in the transport-independent data buffer; and

if the information transmitted was not successfully received, selecting a new transport and forwarding a copy of the passed information maintained in the transport-independent data buffer to a second transport-specific data buffer corresponding to the new transport.

2. The method of claim 1, wherein the transport-independent data buffer and the first transport-specific data buffer to which the information is passed from the transport-independent data buffer reside in same device.

3. The method of claim 2, wherein the information is passed from the transport-independent data buffer to the first transport-specific data buffer in response to a request for communication from an application or service on the device.

4. The method of claim 1, wherein the receipt confirmation comprises a confirmation packet received from another device.

5. The method of claim 1, further comprising, if the information transmitted was not successfully received by the intended recipient, retransmitting the information from the first transport-specific data buffer corresponding to the transport to the intended recipient until a threshold condition is met and, if the threshold condition has been met and the retransmitted information was not successfully received by the intended recipient, performing said selecting a new transport and said forwarding a copy of the passed information maintained in the transport-independent data buffer to the second transport-specific data buffer corresponding to the new transport.

6. A computer program product comprising a non-transitory computer usable medium having computer readable program code recorded in said medium, comprising:

code configured to cause passing of information from a transport-independent data buffer to a first transport-specific data buffer, wherein a copy of the passed information is maintained in the transport-independent data buffer in a transport-independent format;

code configured to cause transmitting of the information from the first transport-specific data buffer to an intended recipient via a transport corresponding to the first transport-specific data buffer;

code configured to cause verifying of the information transmitted via the transport was successfully received by the intended recipient based on a receipt confirmation received via the transport;

code configured to cause, if the information transmitted was successfully received, deleting of the copy of the passed information maintained in the transport-independent data buffer; and

code configured to cause, if the information transmitted was not successfully received, selecting a new transport and forwarding a copy of the passed information maintained in the transport-independent data buffer to a second transport-specific data buffer corresponding to the new transport.

7. The computer program product of claim 6, wherein the transport-independent data buffer and the first transport-specific data buffer to which the information is passed from the transport-independent data buffer reside in same device.

8. The computer program product of claim 7, wherein the code configured to cause passing of information from the transport-independent data buffer to the first transport-specific data buffer is triggered in response to a request for communication from an application or service on the device.

9. The computer program product of claim 6, wherein the receipt confirmation comprises a confirmation packet received from another device.

10. The computer program product of claim 6, further comprising code configured to cause, if the information transmitted was not successfully received by the intended recipient, retransmitting of the information from the first transport-specific data buffer corresponding to the transport to the intended recipient until a threshold condition is met and, if the threshold condition has been met and the retransmitted information was not successfully received by the intended recipient, performing said selecting a new transport and said forwarding a copy of the passed information maintained in the transport-independent data buffer to the second transport-specific data buffer corresponding to the new transport.

11. An apparatus, comprising:

at least one communication module configured to support one or more wireless transports; and

a processor coupled to the at least one communication module, the processor being configured to cause the apparatus to perform at least the following;

pass information from a transport-independent data buffer to a first transport-specific data buffer, wherein a copy of the passed information is maintained in the transport-independent data buffer in a transport-independent format;

transmit the information from the first transport-specific data buffer to an intended recipient via a transport corresponding to the first transport-specific data buffer;

verify the information transmitted via the transport was successfully received by the intended recipient based on a receipt confirmation received via the transport;

if the information transmitted was successfully received, delete the copy of the passed information maintained in the transport-independent data buffer; and

if the information transmitted was not successfully received, select a new transport and forward a copy of the passed information maintained in the transport-independent data buffer to a second transport-specific data buffer corresponding to the new transport.

12. The apparatus of claim 11, wherein the transport-independent data buffer and the first transport-specific data buffer to which the information is passed from the transport-independent data buffer reside in the same apparatus.

13. The apparatus of claim 11, wherein the processor is further configured to cause the apparatus to pass information from the transport-independent data buffer to the first transport-specific data buffer in response to a request for communication from an application or service on the apparatus.

14. The apparatus of claim 11, wherein the receipt confirmation comprises a confirmation packet received from another apparatus.

15. The apparatus of claim 11, wherein the processor is further configured to cause the apparatus to, if the information transmitted was not successfully received by the intended recipient, retransmit information from the first transport-specific data buffer corresponding to the transport to the intended recipient until a threshold condition is met and, if the threshold condition has been met and the retransmitted information was not successfully received by the intended recipient, perform said selecting a new transport and said forwarding a copy of the passed information maintained in the transport-independent data buffer to the second transport-specific data buffer corresponding to the new transport.