EMERGENCY CALL HANDLING

• US 20150111517A1
• Filed: 09/24/2014
• Published: 04/23/2015
• Est. Priority Date: 10/21/2013
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Kowalewski, Frank, Venkatachalam, Muthaiah, Luetzenkirchen, Thomas, Ayyalasomayajula, Usharani
• Granted Patent: US 9,615,234 B2
• Time in Patent Office: Days
• US Class Current: 455/404.1
• CPC Class Codes: G08B 25/016 Personal emergency signalling and security systems emergency non-personal manually actuated alarm activators G08B25/12
• CPC Class Codes: H04B 7/00 Radio transmission systems, i.e. using radiation field H04B10/00, H04B15/00 take precedence
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1678 where the control information is for timing, e.g. time stamps
• CPC Class Codes: H04L 47/2466 using signalling traffic
• CPC Class Codes: H04L 47/2475 for supporting traffic characterised by the type of applications
• CPC Class Codes: H04L 47/28 in relation to timing considerations
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04M 11/04 with alarm systems, e.g. fire, police or burglar alarm systems
• CPC Class Codes: H04M 2242/04 for emergency applications
• CPC Class Codes: H04W 28/0226 based on location or mobility handoff or reselection H04W36/00; mobile application services making use of the location of users or terminals H04W4/02
• CPC Class Codes: H04W 28/0247 based on conditions of the access network or the infrastructure network central resource management H04W28/16
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 36/0069 in case of dual connectivity, e.g. decoupled uplink/downlink
• CPC Class Codes: H04W 36/00698 using different RATs
• CPC Class Codes: H04W 4/022 with dynamic range variability
• CPC Class Codes: H04W 4/027 : using movement velocity, acceleration information
• 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 64/006 : with additional information processing, e.g. for direction or speed determination
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 76/00 : Connection management
• CPC Class Codes: H04W 76/50 : for emergency connections
• CPC Class Codes: H04W 8/08 : Mobility data transfer
• CPC Class Codes: H04W 84/042 : Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 92/02 : Inter-networking arrangements
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Technology for initiating emergency calls is disclosed. A minimum set of emergency related data (MSD) associated with the emergency call may be identified at a terminal equipment (TE) of a mobile terminal. An attention (AT) command may be generated that includes the MSD and selected configuration information related to the emergency call. The AT command may be sent from the TE of the mobile terminal to a mobile termination (MT) of the mobile terminal in order to setup the emergency call, wherein the mobile terminal (MT) routes the emergency call to a public safety answering point (PSAP) in a communication network.

Claims

1. A mobile terminal operable to initiate an emergency call, the mobile terminal having circuitry configured to:

identify a minimum set of emergency related data (MSD) associated with the emergency call;

generate an attention (AT) command that includes the MSD and selected configuration information related to the emergency call; and

send the AT command to a mobile termination (MT) of the mobile terminal in order to setup the emergency call, wherein the mobile terminal (MT) routes the emergency call to a public safety answering point (PSAP) in a communication network.

2. The circuitry of claim 1, further configured to generate the AT command in response to receiving a trigger from an in-vehicle system (IVS) associated with the mobile terminal.

3. The circuitry of claim 1, further configured to send the MSD from the mobile termination (MT) of the mobile terminal to the PSAP via a session initial protocol (SIP) invite message.

4. The circuitry of claim 1, wherein the mobile terminal is configured to initiate internet protocol multimedia subsystem (IMS) based emergency calls.

5. The circuitry of claim 1, wherein the MSD associated with the emergency call includes a current time and a current location of the mobile terminal.

6. The circuitry of claim 1, wherein the AT command is a +CECALL command, wherein a syntax of the +CECALL command is represented as +CECALL=<

type_of_eCall>

[,<

format>

,<

msd_data>

[,<

add_type>

,<

add_data>

]], wherein <

type_of_eCall>

indicate a type of emergency call, <

format>

indicates a format associated with the emergency call, <

msd_data>

is the MSD, <

add_type>

indicates a type of transmission for additional data, and <

add_data>

is the additional data.

7. The circuitry of claim 6, wherein the <

type_of_eCall>

indicates that the type of emergency call is at least one of;

a manually initiated emergency call, an automatically initiated emergency call, or an ongoing emergency call.

8. The circuitry of claim 6, wherein the <

add_data>

is a uniform resource locator (URL) to an external server that stores the additional data.

9. The circuitry of claim 6, wherein the <

add_type>

indicates that the additional data is transmitted within the emergency call or via a reference to an external server that stores the additional data.

10. The circuitry of claim 1, wherein the AT command is a +CECALLDAT command, wherein a syntax of the +CECALLDAT command is represented as +CECALLDAT=<

format>

,<

msd_data>

[,<

add_type>

,<

add_data>

], wherein <

format>

indicates a format associated with the emergency call, <

msd_data>

is the MSD, <

add_type>

indicates a type of transmission for additional data, and <

add_data>

is the additional data.

11. The circuitry of claim 6, further configured to send at least one of the +CECALL command or a +CECELLDAT command as the AT command, wherein the syntax of the +CECALL command is represented as +CECALL=<

type_of_eCall>

[,<

cid>

,[<

format>

,<

msd_data>

[,<

add_type>

,<

add_data>

]]} and a syntax of the +CECELLDAT command is represented as +CECALLDAT=<

cid>

,<

format>

,<

msd_data>

[,<

add_type>

,<

add_data>

], wherein <

cid>

indicates a call identifier (ID) when the MT supports multiple simultaneous emergency calls.

12. The circuitry of claim 11, further configured to send at least one of the +CECALL command or the +CECELLDAT command as the AT command, wherein the syntax of the +CECALL command is represented as +CECALL=<

type_of_eCall>

[,<

cid>

[,<

domain>

[,<

format>

,<

msd_data>

[,<

add_type>

,<

add_data>

]]]] and the syntax of the +CECELLDAT command is represented as +CECALLDAT=<

cid>

,<

domain>

,<

format>

,<

msd_data>

[,<

add_type>

,<

add_data>

], wherein <

domain>

indicates whether the emergency call is set up via a circuit switched (CS) domain or an internet protocol multimedia subsystem (IMS) domain.

13. A mobile termination (MT) of a mobile terminal operable to handle emergency calls, the MT having circuitry configured to:

receive an attention (AT) command for an emergency call from a terminal equipment (TE) of the mobile terminal, wherein the AT command includes a minimum set of emergency related data (MSD) associated with the emergency call;

identify a public safety answering point (PSAP) based in part on the MSD included in the AT command; and

route the emergency call to the PSAP, wherein the PSAP connects the emergency call to appropriate public safety personnel.

14. The circuitry of claim 13, wherein the MSD associated with the emergency call includes a current time and a current location of the mobile terminal.

15. The circuitry of claim 13, further configured to:

determine that <

msd_data> and

<

add_data>

parameters are not provided in the AT command from the TE; and

identify default data to be used in place of the <

msd_data> and

<

add_data>

parameters when initiating the emergency call.

16. The circuitry of claim 13, wherein the AT command received from the TE is a +CECALL command, wherein a syntax of the +CECALL command is represented as +CECALL=<

type_of_eCall>

[,<

format>

,<

msd_data>

[,<

add_type>

,<

add_data>

]], wherein <

type_of_eCall>

indicate a type of emergency call, <

format>

indicates a format associated with the emergency call, <

msd_data>

is the MSD, <

add_type>

indicates a type of transmission for additional data, and <

add_data>

is the additional data.

17. The circuitry of claim 16, further configured to:

determine that the +CECALL command received from the TE includes one or more parameters that are in error; and

send, to the TE, an error code and a description of the error to enable the TE to resend the +CECALL command to the MT.

18. A method for initiating emergency calls, the method comprising:

identifying, at a terminal equipment (TE) of a mobile terminal, a minimum set of emergency related data (MSD) associated with the emergency call;

generating an attention (AT) command that includes the MSD and selected configuration information related to the emergency call; and

sending the AT command from the TE of the mobile terminal to a mobile termination (MT) of the mobile terminal in order to setup the emergency call, wherein the mobile terminal (MT) routes the emergency call to a public safety answering point (PSAP) in a communication network.

19. The method of claim 18, further comprising generating the AT command in response to receiving a trigger from an in-vehicle system (IVS) associated with the mobile terminal.

20. The method of claim 18, further comprising sending the MSD associated with the emergency call from the mobile terminal to the PSAP using a session initial protocol (SIP) invite message.