Secure method for MTC device triggering

• US 10,404,677 B2
• Filed: 09/27/2018
• Issued: 09/03/2019
• Est. Priority Date: 10/28/2011
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Zhang, Xiaowei, Prasad, Anand Raghawa
• Primary Examiner(s): Cai, Wayne H
• Application Number:
  US16/144,323
• Publication Number:
  US 20190028454A1
• Time in Patent Office: 341 Days
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/0876 based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
• CPC Class Codes: H04L 63/101 Access control lists [ACL]
• CPC Class Codes: H04L 63/12 Applying verification of the received information cryptographic mechanisms or cryptographic arrangements for data integrity or data verification H04L9/32
• CPC Class Codes: H04L 63/123 received data contents, e.g. message integrity
• CPC Class Codes: H04L 63/1416 Event detection, e.g. attack signature detection
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04L 63/205 involving negotiation or determination of the one or more network security mechanisms to be used, e.g. by negotiation between the client and the server or between peers or by selection according to the capabilities of the entities involved negotiation of communication capabilities H04L69/24
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 12/106 Packet or message integrity
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Abstract

Upon receiving a triggering message from a MTC server (20), a network (10) verifies if the MTC server (20) is authorized to trigger a target MTC device (30) and also if the MTC device (30) is authorized to respond the triggering message, by comparing an MTC device ID and MTC server ID (and optionally information on subscription) which are include in the triggering message with authorized ones. Upon succeeding in the verification, the network (10) checks a trigger type included in the triggering message to verify if the triggering message is authorized to be sent to the MTC device (30). Upon succeeding in the check, the network (10) forwards the triggering message to the MTC device (30). The network (10) also validates a response from the MTC device (30), by checking whether the MTC device (30) is allowed to communicate with the addressed. MTC server (20).

Claims

1. A SCS (Service Capability Server) in a mobile communication system, the SCS comprising:

a memory storing instructions;

a processor configured to process the instructions to;

send, to a MTC-IWF (Machine Type Communication-Inter Working Function), a trigger message including a time period for which the trigger message is valid, and

perform mutual authentication between the MTC-IWF and the SCS,

wherein a delivery of the trigger message to a UE (User Equipment) is re-attempted if the delivery fails within the time period.

2. The SCS of claim 1, wherein the MTC-IWF checks whether the SCS is authorized to send the trigger message, and sends the trigger message to the UE via a MME (Mobility Management Entity) or a SGSN (Serving GPRS Support Node).

3. A method of a SCS (Service Capability Server) in a mobile communication system, the method comprising:

sending, to a MTC-IWF (Machine Type Communication-Inter Working Function), a trigger message including a time period for which the trigger message is valid; and

performing mutual authentication between the MTC-IWF and the SCS,

wherein a delivery of the trigger message to a UE (User Equipment) is re-attempted if the delivery fails within the time period.

4. The method of claim 3, wherein the MTC-IWF checks whether the SCS is authorized to send the trigger message, and sends the trigger message to the UE via a MME (Mobility Management Entity) or a SGSN (Serving GPRS Support Node).

5. A MTC-IWF (Machine Type Communication-Inter Working Function) in a mobile communication system, the MTC-IWF comprising:

a memory storing instructions;

a processor configured to process the instructions to;

receive, from a SCS (Service Capability Server), a trigger message including a time period for which the trigger message is valid, and

check whether the server is authorized to send the trigger message, and to send the trigger message to a UE (User Equipment) via a MME (Mobility Management Entity) or a SGSN (Serving GPRS Support Node),

wherein a delivery of the trigger message to a UE (User Equipment) is re-attempted if the delivery falls within the time period.

6. The MTC-IWF of claim 5, wherein the trigger message includes an identifier of the UE.

7. A method of a MTC-IWF (Machine Type Communication-Inter Working Function) in a mobile communication system, the method comprising:

receiving, from a SCS (Service Capability Server), a trigger message including a time period for which the trigger message is valid;

checking whether the server is authorized to send the trigger message; and

sending the trigger message to a UE (User Equipment) via a MME (Mobility Management Entity) or a SGSN (Serving GPRS Support Node),

wherein a delivery of the trigger message to a UE (User Equipment) is re-attempted if the delivery fails within the time period.

8. The method of claim 7, wherein the trigger message includes an identifier of the UE.

9. A UE (User Equipment) in a mobile communication system, the UE comprising:

a memory storing instructions;

a processor configured to process the instructions to;

receive a delivery of a trigger message from a MTC-IWF (Machine Type Communication-Inter Working Function) via a MME (Mobility Management Entity) or a SGSN (Serving GPRS Support Node), and

send a trigger response to the MTC-IWF via the MME or the SGSN in response to the delivery,

wherein a SCS (Service Capability Server) sends, to the MTC-IWF, a trigger message Including a time period for which the trigger message is valid, and

wherein the delivery is re-attempted if the delivery-fails within the time period.

10. The UE of claim 9, wherein the MTC-IWF checks whether the SCS is authorized to send the trigger message.

11. A method of a UE (User Equipment) for a mobile communication system, the method comprising:

receiving a delivery of a trigger message from a MTC-IWF (Machine Type Communication-Inter Working Function) via a MME (Mobility Management Entity) or a SGSN (Serving GPRS Support Node); and

sending a trigger response to the MTC-IWF via the MME or the SGSN in response to the delivery,

wherein a SCS (Service Capability Server) sends, to the MTC-IWF, the trigger message including a time period for which the trigger message is valid, and

wherein the delivery is re-attempted if the delivery-fails within the time period.

12. The method of claim 11, wherein the MTC-IWF checks whether the SCS is authorized to send the trigger message.