DISTRIBUTED ROUTER APPLICATION SERIALIZATION

• US 20090257442A1
• Filed: 06/25/2009
• Published: 10/15/2009
• Est. Priority Date: 06/24/2003
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Hassan, Ahmed E., Wilson, J.F. (Sean)
• Granted Patent: US 7,961,748 B2
• Time in Patent Office: Days
• US Class Current: 370/428
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication

Abstract

A router, which may be a wireless gateway, for routing messages between communications networks, including a persistent storage, and a transport interface for sending outgoing messages to communications devices associated with a first communications network, and receiving incoming messages from the communications devices, and having a storage for storing pending outgoing and incoming messages for subsequent sending by the interface component, the transport interface being coupled to the persistent storage and having an associated shutdown module for serializing at least some of the pending messages to the persistent storage during shutdown of the interface component. The router may include a plurality of the transport interfaces, and a controller coupled to the transport interfaces for directing at least one of the transport interfaces to retrieve from the persistent storage for subsequent sending the pending messages serialized thereto by a further one of the transport interfaces during shutdown thereof.

Claims

1. A method for storing messages during shutting down of a router interface component that is configured to send outgoing messages addressed to communications devices associated with a first communications network, and to receive incoming messages from the communications devices, the router interface component having a storage to store pending outgoing and incoming messages for subsequent sending, the method including, during shutdown, determining whether any of the pending messages include status messages relating to a status of a previously sent or received message, and if so storing said status messages to a persistent storage.

2. The method of claim 1 further comprising determining whether any of the pending messages include device messages relating to text information, and if so generating status information and storing said device messages to the persistent storage along with said generated status information.

3. The method of claim 2 wherein said status messages are prioritized over said device messages when storing to said persistent storage.

4. The method of claim 2 wherein said status messages or status information includes error code information.

5. The method of claim 2 wherein said status messages or status information includes delivery acknowledgement information.

6. The method of claim 2 wherein the device messages relating to text information are electronic mail messages.

7. The method of claim 1 further comprising storing in the persistent storage address information of source or destination communication devices, the address information being stored in association with the stored pending messages.

8. The method of claim 1 further comprising storing in the persistent storage a time of shutdown of the transport interface, the time being stored in association with the stored pending messages.

9. The method of claim 1 wherein the pending messages are stored based on a determination of which of the pending messages are required to be sent to the communications devices by the router to avoid an incorrect determination by one of the communications devices associated with the first communications network of the status of a message originating therefrom.

10. A method for storing messages during shutting down of a router interface component that is configured to send outgoing messages addressed to communications devices associated with a first communications network, and to receive incoming messages from the communications devices, the router interface component having a storage to store pending outgoing and incoming messages for subsequent sending, the method including, during shutdown, determining whether any of the pending messages include device messages relating to text information, and if so generating status information and storing said device messages to a persistent storage along with said generated status information.

11. A router for routing messages between communications networks, including:

a persistent storage; and

a transport interface for sending outgoing messages to communications devices associated with a first communications network, and receiving incoming messages from the communications devices, and having a storage for storing pending outgoing and incoming messages for subsequent sending by the transport interface, the transport interface being coupled to the persistent storage and having an associated shutdown module for storing at least some of the pending messages to the persistent storage during shutdown of the transport interface, the transport interface being configured to, during shutdown, determine whether any of the pending messages include status messages relating to a status of a previously sent or received message, and if so store said status messages to the persistent storage.

12. The router of claim 11 wherein the transport interface is further configured to determine whether any of the pending messages include device messages relating to text information, and if so generate status information and store said device messages to the persistent storage along with said generated status information.

13. The router of claim 12 wherein the status messages or status information includes error code information.

14. The router of claim 12 wherein the status messages or status information includes delivery acknowledgement information.

15. The router of claim 12 wherein the device messages relating to text information are electronic mail messages.

16. The router of claim 11 wherein the transport interface is further configured to store in the persistent storage address information of source or destination communication devices, the address information being stored in association with the stored pending messages.

17. The router of claim 11 wherein the transport interface is further configured to store in the persistent storage a time of shutdown of the transport interface, the time being stored in association with the stored pending messages.