SYSTEM AND METHOD FOR PACKETIZED EMERGENCY MESSAGES

• US 20110188411A1
• Filed: 02/02/2010
• Published: 08/04/2011
• Est. Priority Date: 02/02/2010
• Status: Abandoned Application

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Suzuki, Takashi, Faccin, Stefano, Bakker, Jan Hendrik Lucas, Dwyer, Johanna Lisa, Earnshaw, Mark, Hole, David Philip, McCann, Stephen, Chin, Chen Ho, Rayavarapu, Venkata Ratnakar Rao
• Application Number:
  US12/698,974
• Publication Number:
  US 20110188411A1
• Time in Patent Office: Days
• US Class Current: 370/259
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

A system and method allows for providing emergency service, whether the service is full or limited, to wireless devices using non-IMS packet traffic based methods or Access Stratum/Non-Access Stratum (AS/NAS) signalling based methods. To do so, a system and method for utilizing a Packetized Emergency Message (PEM) is provided.

Claims

1. A system of communicating a packetized emergency message (PEM) from a wireless device to a packetized emergency message consumer (PEMC) comprising:

a memory having stored therein a PEM for transmission from the wireless device to a PEMC, wherein the PEM at least includes at least one of a header identifying the wireless device, a state ID identifying a service state of the wireless device, and a body; and

a processor configured to access the memory and transmit the PEM as at least part of a process to indicate a category of emergency.

2. The system of claim 1 wherein the processor is configured to transmit the PEM with an indicator of emergency category that is communicated as part of at least one of a packet data protocol (PDP) context activation and secondary PDP context activation.

3. The system of claim 1 wherein the processor is configured to transmit the PEM with an indicator of emergency category that is communicated as part of at least one of an attach request and a PDN connectivity request.

4. The system of claim 1 wherein the processor is configured to transmit the PEM with an indicator of emergency category that is communicated as an emergency type emergency access point name (APN) indicating the service type indicator of emergency.

5. The system of claim 1 wherein the processor is configured to identify an emergency service type.

6. The system of claim 1 wherein the memory has stored therein a service type indicator and the processor is configured to access the memory of the wireless device to retrieve the service type indicator associated with an identified emergency service type.

7. The system of claim 6 wherein the processor is configured to transmit the service type indicator of emergency as a string concatenated to an APN.

8. The system of claim 1 wherein the processor is configured to establish a Packet Data Network (PDN) connection for emergency services prior to transmitting the PEM.

9. The system of claim 8 wherein the processor is configured to discover an address of the PEMC before transmitting the PEM over the PDN connection to a PEMC using the discovered address of the PEMC.

10. The system of claim 1 wherein the processor is configured to identify an address of the PEMC.

11. The system of claim 10 wherein the processor is configured to identify a logical name of the PEMC to identify the address of the PEMC.

12. The system of claim 10 wherein the processor is configured to use a session initiation protocol (SIP) message to identify the address of the PEMC.

13. The system of claim 1 wherein the processor is configured to transmit further PEM.

14. The system of claim 13 wherein transmitting further PEM is performed by the processor upon at least one of an expiration of a predetermined time period and upon identifying a predetermined event.

15. The system of claim 13 wherein the further PEM is substantially similar to the PEM.

16. The system of claim 13 wherein the further PEM includes a portion of the information included in the PEM.

17. The system of claim 1 wherein the PEM includes a voice note stored in the body of the PEM.

18. The system of claim 1 wherein transmitting the PEM includes transporting the PEM over Short Message Service (SMS) according to at least one of an SMS over IP and SMS over internet protocol (IP) Multimedia Subsystem (IMS).

19. The system of claim 1 wherein the processor is configured to transmit the PEM without an identity of the PEMC and an address of the PEMC.

20. The system of claim 1 wherein the PEM includes a priority indicator.

21. The system of claim 1 wherein the processor is configured to identify a handover event from a cell supporting voice over internet protocol (IP) Multimedia Subsystem (IMS) (VoIMS) to a cell not supporting VoIMS, establish a connection to the cell not supporting VoIMS, and transmit the PEM over at least one of a user plane and a control plane in the cell not supporting VoIMS using the connection

22. A method of communicating a packetized emergency message (PEM) from a wireless device to a packetized emergency message consumer (PEMC) comprising the steps of:

determining a category of emergency;

transmitting a PEM from the wireless device to a PEMC having information relating to the determined category of emergency; and

wherein the PEM at least includes at least one of a header identifying the wireless device, a state ID identifying a service state of the wireless device, and a body.

23. The method of claim 22 wherein transmitting the PEM includes transmitting an indicator of emergency category as part of at least one of a packet data protocol (PDP) context activation and secondary PDP context activation.

24. The method of claim 22 wherein transmitting the PEM includes transmitting an indicator of emergency category as part of at least one of an attach request and a PDN connectivity request.

25. The method of claim 22 wherein transmitting the PEM includes transmitting an indicator of emergency category as an emergency type emergency access point name (APN) indicating the service type indicator of emergency.

26. The method of claim 22 further comprising identifying an emergency service type based on the category of emergency.

27. The method of claim 26 further comprising accessing a memory of the wireless device to retrieve a service type indicator associated with the identified emergency service type.

28. The method of claim 27 wherein the service type indicator is included as a string concatenated to an APN.

29. The method of claim 22 further comprising discovering an address of the PEMC before transmitting the PEM.

30. The method of claim 29 further comprising establishing a Packet Data Network (PDN) connection for emergency services prior to transmitting the PEM.

31. The method of claim 22 further comprising identifying an address of the PEMC.

32. The method of claim 31 wherein identifying the address of the PEMC includes identifying a logical name of the PEMC.

33. The method of claim 31 further comprising using a session initiation protocol (SIP) message to identify the address of the PEMC.

34. The method of claim 22 further comprising transmitting further PEM.

35. The method of claim 34 wherein transmitting further PEM is performed upon at least one of an expiration of a predetermined time period and upon identifying a predetermined event.

36. The method of claim 34 wherein the further PEM is substantially similar to the PEM.

37. The method of claim 34 wherein the further PEM includes a portion of the information included in the PEM.

38. The method of claim 22 wherein the PEM includes a voice note stored in the body.

39. The method of claim 22 wherein the PEM includes a priority indicator.