Method and system for efficiently routing messages

• US 8,903,437 B2
• Filed: 03/22/2013
• Issued: 12/02/2014
• Est. Priority Date: 10/27/2000
• Status: Expired due to Fees

• Current Assignee: Sierra Wireless America Incorporated (Sierra Wireless Incorporated)
• Original Assignee: Numerex Corporation (Sierra Wireless Incorporated)
• Inventors: Tarleton, Bryan Keith, Criscolo, Michael J., Comer, Edward I., Simitses, William George
• Primary Examiner(s): TRAN, CONGVAN
• Application Number:
  US13/848,804
• Publication Number:
  US 20130210427A1
• Time in Patent Office: 620 Days
• Field of Search: 455/414.1, 455/414.4, 455/415, 4554321-4322, 455/433
• 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 comprising the steps of:

receiving an SMS message sent by a communication device having a home network, the SMS message sent with the communication device in the home network, the home network having a visitor location registry;

determining a destination of the SMS message based on data in the SMS message;

reformatting the message according to the destination;

responsive to receiving the SMS message, querying the visitor location registry about the communication device and receiving a reply to the query;

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

if the received reply indicates that the visitor location registry does not have an entry for the communication device, then causing an entry for the communication device to be created in the visitor location registry; and

forwarding the reformatted message for delivery at the destination.

2. The method of claim 1, wherein a gateway performs each said step in the method.

3. The method of claim 1, wherein the data comprises a mobile identification number (MIN) or an international mobile station identifier (IMSI).

4. A gateway comprising computer-readable instructions that, when executed, perform the steps of:

receiving a message sent from a communication device with the communication device in a home network of the communication device and treating the received message as roaming;

requesting from a mobile switching center routing information for the received message;

receiving the requested routing information;

converting the received message from a first format to a second format selected based on the received routing information; and

transmitting the converted message to the mobile switching center.

5. The gateway of claim 4, wherein treating the received message as roaming comprises querying a visitor location registry for the home network regarding the communication device.

6. The gateway of claim 5, wherein treating the received message as roaming further comprises:

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

if the reply to the query indicates that the visitor location registry lacks the entry for the communication device, then causing creation of the entry for the communication device.

7. A method comprising the steps of:

at a gateway, receiving a message sent from a communication device with the communication device in a home network of the communication device;

at the gateway, requesting routing information for the received message 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 selected based on the received routing information; and

transmitting the converted message from the gateway to the mobile switching center,

wherein the gateway considers the received message as roaming.

8. The method of claim 7, further comprising the steps of:

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.

9. The method of claim 7, further comprising the steps of:

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

if the visitor location registry is determined to have the entry for the communication device, then processing the message according to the entry.

10. The method of claim 7, wherein the gateway repetitively routes messages to respective communication devices without querying a home location register regarding the routed messages.

11. The method of claim 7, wherein the home network has a home location registry, and

wherein the gateway repetitively routes other messages originating in the home network without querying the home location register regarding the other messages.

12. The method of claim 7, wherein the home network has a home location registry, and

wherein the gateway processes the message without querying the home location registry about the message or the communication device.

13. The method of claim 7, wherein the message comprises an SMS message.

14. A method comprising the steps of:

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

retrieving a stored profile using the determined identifying characteristic;

selecting a second format based on the retrieved profile;

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

forwarding the converted SMS message for delivery,

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.

15. The method of claim 14, wherein the mobile communication device sent the SMS message while the mobile communication device was in the home network.

16. The method of claim 15, wherein the home network has a visitor location registry, and

wherein the method further comprises querying the visitor location registry regarding the mobile communication device while the mobile communication device is in the home network.

17. The method of claim 16, wherein the method further comprises the steps of:

receiving a reply to the query; and

if the reply indicates that the visitor location registry has an entry for the mobile communication device, then processing the SMS message according to the entry.

18. The method of claim 16, wherein the method further comprises the steps of:

receiving a reply to the query; and

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

19. The method of claim 14, wherein the determining step comprises intercepting the SMS message and determining the identifying characteristic and the destination of the intercepted SMS message.

20. The method of claim 14, wherein a gateway executes at least the determining step.