Method for Preventing the Delivery of Short Message Service Message Spam

• US 20070281718A1
• Filed: 04/14/2004
• Published: 12/06/2007
• Est. Priority Date: 04/14/2004
• Status: Active Grant

• Current Assignee: ZephyrTel, Inc.
• Original Assignee: Nooren Consulting B. V.
• Inventors: Nooren, Eloy Johan Lambertus
• Granted Patent: US 7,996,024 B2
• Time in Patent Office: Days
• US Class Current: 455/466
• CPC Class Codes: H04L 51/212 using filtering or selective blocking
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04W 88/184 Messaging devices, e.g. message centre

Abstract

A method and/or system delivers a short message service (SMS) message in an SMS-network comprising a network element to at least one mobile terminal which includes:

• • receiving first routing data (imsi1) for delivery of said SMS-message to said mobile terminal at said network element
  • transmitting second routing data (imsi2) from said network element in response to receiving said first routing data (imsi1);
  • receiving at said network element said SMS-message comprising said second routing data (imsi2), and
  • converting at said network element said second routing data (imsi2) to said first routing data (imsi1) for delivery of said SMS-message to said mobile terminal. The invention is particularly advantageous for identifying and/or preventing unauthorised delivery of SMS mobile terminated messages.

Claims

1. A method for delivery of a short message service (SMS) message in an SMS-network comprising a network element to at least one mobile terminal, said method comprising:

receiving first routing data (imsi1) for delivery of said SMS-message to said mobile terminal at said network element;

transmitting second routing data (imsi2) from said network element in response to receiving said first routing data (imsi1);

receiving at said network element said SMS-message comprising said second routing data (imsi2), and

converting at said network element said second routing data (imsi2) to said first routing data (imsi1) for delivery of said SMS-message to said mobile terminal.

2. The method of claim 1, wherein said first routing data comprises the international mobile station identifier (IMSI) (imsi1) of the mobile terminal and said second routing data comprises a different IMSI (imsi2).

3. The method of claim 1, wherein said SMS-network further has access to a short message service centre (SMSC) and said method further comprises the steps of:

receiving at said network element a request (SRI_SM) from said SMSC for said first routing data (imsi1);

transmitting a response message (SRI_SM_RESP) to said SMSC comprising said second routing data (imsi2).

4. The method of claim 3, further comprising e comparing the address of said SMSC in said request (SRI_SM) and the address of said SMSC in said SMS-message for detecting unauthorized delivery of said SMS-message.

5. The method according to claim 1 claims, further comprising determining the time interval (Δ

T) between transmitting said second routing data (imsi2) and receiving said SMS-message.

6. The method according to claim 1 claims, wherein the validity of said second routing data (imis2) expires after a predetermined time interval.

7. The method according to claim 1 claims, wherein said transmitted second routing data (imsi2) are different from said received first routing data (imsi1).

15. The method of claim 2, wherein said SMS-network further has access to a short message service centre (SMSC) and said method further comprises the steps of:

receiving at said network element a request (SRI_SM) from said SMSC for said first routing data (imsi1);

transmitting a response message (SRI_SM_RESP) to said SMSC comprising said second routing data (imsi2).

8. A method for delivery of a short message service (SMS) message in an SMS-network comprising a network element to at least one mobile terminal, said method comprising:

receiving first routing data (imsi1) for delivery of said SMS-message to said mobile terminal at said network element, and

transmitting second routing data (imsi2) from said network element in response to receiving said first routing data (imsi1).

9. A computer program product for delivery of a short message service (SMS) message in an SMS-network comprising a network element to at least one mobile terminal at least including computer executable code portions for:

receiving first routing data (imsi1) for delivery of said SMS-message to said mobile terminal at said network element

transmitting second routing data (imsi2) from said network element in response to receiving said first routing data (imsi1);

receiving at said network element said SMS-message comprising said second routing data (imsi2), and

converting at said network element said second routing data (imsi2) to said first routing data (imsi1) for delivery of said SMS-message to said mobile terminal.

10. The computer program product according to claim 9, further comprising computer executable code portions configured such that said first routing data comprises the international mobile station identifier (IMSI) (imsi1) of the mobile terminal and wherein said second routing data comprises a different IMSI (imsi2).

11. An SMS-network comprising a network element for delivery of a short message service (SMS) message to at least one mobile terminal, said network element being adapted for:

receiving first routing data (imsi1) for delivery of said SMS-message to said mobile terminal;

transmitting second routing data (imsi2) in response to receiving said first routing data (imsi1);

receiving said SMS-message comprising said second routing data (imsi2), and

converting said second routing data (imsi2) to said first routing data (imsi1) for delivery of said SMS-message to said mobile terminal.

12. The SMS-network according to claim 11, wherein said network element is further adapted such that said first routing data comprises the international mobile station identifier (IMSI) (imsi1) of the mobile terminal and said second routing data comprises a different IMSI (imsi2).

13. A network element for use in an SMS-network for delivery of a short message service (SMS) message to at least one mobile terminal, said network element being adapted for:

receiving first routing data (imsi1) for delivery of said SMS-message to said mobile terminal;

transmitting second routing data (imsi2) in response to receiving said first routing data (imsi1);

receiving said SMS-message comprising said second routing data (imsi2), and

converting said second routing data (imsi2) to said first routing data (imsi1) for delivery of said SMS-message to said mobile terminal.

14. The network element according to claim 13, wherein said network element is further adapted such that said first routing data comprises the international mobile station identifier (IMSI) (imsi1) of the mobile terminal and said second routing data comprises a different IMSI (imsi2).