Method and system for efficiently routing messages

• US 8,543,146 B2
• Filed: 09/28/2011
• Issued: 09/24/2013
• Est. Priority Date: 10/27/2000
• Status: Expired due to Fees

• Current Assignee: Numerex Corporation (Sierra Wireless Incorporated)
• Original Assignee: Cellemetry, LLC (Sierra Wireless Incorporated)
• Inventors: Tarleton, Bryan Keith, Criscolo, Michael J., Comer, Edward I., Simitses, William George
• Primary Examiner(s): TRAN, CONGVAN
• Application Number:
  US13/247,316
• Publication Number:
  US 20120015677A1
• Time in Patent Office: 727 Days
• Field of Search: 4554121-4122, 455/413, 455/414.4, 455/432.2, 455/466, 455/432.1, 370/465, 370466-467
• US Class Current: 455/466
• CPC Class Codes: H04L 51/066 Format adaptation, e.g. format conversion or compression
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 4/14 Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 88/184 Messaging devices, e.g. message centre
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

Efficient routing of a message over a data network. A first communication device sends a message to a telemetry gateway or short message arbitrator. The telemetry gateway or short message arbitrator determines the communication protocol of the first communication device and the communication protocol of a second communication device. The telemetry gateway or short message arbitrator converts the message to a data format compatible with the second communication device, wherein the message is converted to one of at least three different communication protocols. The telemetry gateway or short message arbitrator then forwards the message for receipt by the second communication device. The telemetry gateway or short message arbitrator can convert and forward the message without completing a store and forward process.

Claims

1. A method for communicating messages between a first device having a home network and a second device, comprising the steps of:

receiving an SMS message that originated at the first device while the first device was in the home network, the SMS message comprising an identifier and having a first data format;

considering the SMS message as roaming;

responsive to determining the identifier of the SMS message, accessing a database to retrieve a profile for the first device and the second device;

determining, based on the retrieved profile, whether the first device and the second device communicate using incompatible data formats; and

converting the SMS message from the first format to one of at least three different formats that is selected according to the retrieved profile; and

transmitting the converted SMS message for receipt by the second device.

2. The method of claim 1, wherein a gateway performs the receiving, accessing, determining, converting, and transmitting steps.

3. The method of claim 1, wherein substantially less than one second lapses between the receiving step and the transmitting step.

4. The method of claim 1, wherein a gateway completes the receiving, accessing, determining, converting, and transmitting steps in a few milliseconds.

5. The method of claim 1, wherein less than ten milliseconds passes between the receiving step and the transmitting step.

6. The method of claim 1, wherein the converting step comprises processing the SMS message with a selected one of at least three translators that are coupled to the database via a controller.

7. The method of claim 1, wherein the identifier comprises a mobile identification number (MIN).

8. The method of claim 1, wherein the identifier comprises an international mobile station identifier (IMSI).

9. The method of claim 1, wherein the first device comprises a radio communication device and the second device comprises a mobile switching center.

10. The method of claim 1, wherein the step of considering the SMS message as roaming comprises querying a visitor location register for the home network regardless of whether the first device is represented in a home location register for the home network.

11. The method of claim 1, wherein the receiving, accessing, determining, converting, and transmitting steps are performed at an arbitrator, and

wherein the method further comprises the steps of:

at the arbitrator, converting a second SMS message from the first format to a second of the at least three different formats; and

at the arbitrator, converting a third SMS message from the first format to a third of the at least three formats,

wherein the one of the at least three different formats, the second of the at least three different formats, and the third format of the at least three different formats are different from one another.

12. The method of claim 1, wherein receiving the SMS message comprises intercepting the SMS message.

13. A method comprising the steps of:

based on data contained within an SMS message that has been sent from a communication device having a home network and that has a first format, determining an identifying characteristic and a destination of the SMS message;

retrieving a stored profile using the determined identifying characteristic;

selecting a second format from at least three different formats based on the retrieved profile;

converting the SMS message from the first format to the selected second format; and

without completing a store and forward process, forwarding the converted SMS message for delivery,

wherein the SMS message was sent while the communication device was in the home network,

wherein the home network has a visitor location registry, and

wherein the method comprises;

designating the SMS message as roaming and querying the visitor location registry;

if a reply to the query indicates that the visitor location registry has an entry for the communication device, processing the SMS message according to the entry; and

if the reply to the query indicates that the visitor location registry does not have an entry for the communication device, creating an entry for the communication device in the visitor location registry.

14. The method of claim 13, wherein the first format comprises a wireless access format, and

wherein the at least three different formats comprise a format for an email system, a format for a voicemail system, and a format for a web-based messaging system.

15. The method of claim 13, wherein the first format is compatible with an email system, a voicemail system, or a web-based messaging system, and

wherein the selected format comprises a wireless access format.

16. The method of claim 13, wherein the determining step, the retrieving step, the selecting step, the converting step, and the forwarding step execute to completion within a time period of less than about ten milliseconds.

17. The method of claim 13, wherein less than about ten milliseconds passes during the determining step, the retrieving step, the selecting step, the converting step, and the forwarding step.

18. The method of claim 13, wherein designating the SMS message as roaming and querying the visitor location registry occurs without querying a home location registry of the home network, and

wherein the visitor location registry comprises a database comprising temporary information about subscribers of one network that are roaming in another network, and

wherein creating the entry comprises a switch creating the entry.

19. The method of claim 13, wherein the determining step comprises intercepting the SMS message and determining the identifying characteristic and the destination of the intercepted SMS message.

20. A method for routing a message using a gateway, comprising the steps of:

at a first time at the gateway, receiving the message from a communication device;

at the gateway, requesting routing information from a mobile switching center;

at the gateway, receiving the requested routing information;

at the gateway, converting the received message from a first format to a second format that is selected from at least three formats that are different from one another based on the received routing information; and

transmitting the converted message from the gateway to the mobile switching center at a second time that is substantially less than one second after the first time,

wherein the gateway considers the received message and all other received messages as roaming.

21. The method of claim 20, wherein the second time is milliseconds after the first time.

22. The method of claim 20, wherein the second time is less than ten milliseconds after the first time.

23. The method of claim 20, wherein the second time is within a few milliseconds of the first time.

24. The method of claim 20, wherein the communication device is in a home network of the communication device.

25. The method of claim 24, further comprising:

determining whether a visitor location registry for the home network contains an entry for the communication device; and

if the visitor location registry does not contain the entry, creating the entry.

26. The method of claim 20, wherein the gateway repetitively routes messages to respective mobile communication devices without querying a home location register.

27. The method of claim 20, further comprising the steps of:

at the gateway, receiving a second message from a service provider;

at the gateway, requesting routing information for the second message from a switch at a destination network;

at the gateway, receiving the requested routing information;

at the gateway, converting the second message to a wireless access format used at the destination network; and

transmitting the converted second message according to the received routing information.

28. The method of claim 20, wherein the gateway considers the received message as roaming while the communication device is in a home network of the communication device when the receiving step occurs,

wherein the home network has a home location registry, and

wherein the gateway processes the message without querying the home location registry between the first time and the second time.

29. The method of claim 20, wherein the communication device has a home network, and

wherein the step of receiving the message comprises at the first time at the gateway, receiving the message from the communication device that is in the home network.

30. A method comprising the steps of:

based on data contained within an SMS message that has been sent and that has a first format, determining an identifying characteristic and a destination of the SMS message;

retrieving a stored profile using the determined identifying characteristic;

selecting a second format from at least three different formats based on the retrieved profile;

converting the SMS message from the first format to the selected second format; and

without completing a store and forward process, forwarding the converted SMS message for delivery,

wherein the SMS message has been sent by a mobile communication device having a home network, and

wherein the SMS message is treated as roaming regardless of whether the mobile communication device sent the SMS message while the mobile communication device was in the home network.