Techniques to support emergency calls with over-the-top service provider
First Claim
1. A method of communication at a wireless device, comprising:
- transmitting a first Session Initiation Protocol (SIP) message to a third party emergency call server while establishing a communication session, the first SIP message comprising at least a set of session information related to the communication session and a set of telematics data for the wireless device;
receiving, at a receiver of the wireless device, a second SIP message while establishing the communication session, the second SIP message comprising metadata based at least in part on a reception status or a content of the set of telematics data transmitted in the first SIP message; and
receiving a circuit switched (CS) voice call-back from the third party emergency call server or a public safety answering point (PSAP) based at least in part on determining that a media path between the wireless device and the third party emergency call server cannot be established or does not support at least one of;
a threshold bandwidth, or a threshold quality of service (QoS), or a threshold packet loss, or a threshold latency.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, systems, and devices are described for wireless communication. A wireless device such as an in-vehicle system (IVS) may transmit an emergency call (eCall) message to a third party eCall server using a communication session which may be packet based or circuit based. The eCall message may include session information and telematics data. The third party eCall server may relay the session information and telematics data to a public safety answering point (PSAP). For example, the third party eCall server may generate an automatic text-to-speech message that is transmitted to the PSAP over a public communications network. In some cases, the third party eCall server may transmit a response to the wireless device including metadata based on the telematics data transmitted in the eCall message. The eCall message may also include a call-back number, and the PSAP may contact the wireless device directly using the call-back number.
11 Citations
30 Claims
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1. A method of communication at a wireless device, comprising:
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transmitting a first Session Initiation Protocol (SIP) message to a third party emergency call server while establishing a communication session, the first SIP message comprising at least a set of session information related to the communication session and a set of telematics data for the wireless device; receiving, at a receiver of the wireless device, a second SIP message while establishing the communication session, the second SIP message comprising metadata based at least in part on a reception status or a content of the set of telematics data transmitted in the first SIP message; and receiving a circuit switched (CS) voice call-back from the third party emergency call server or a public safety answering point (PSAP) based at least in part on determining that a media path between the wireless device and the third party emergency call server cannot be established or does not support at least one of;
a threshold bandwidth, or a threshold quality of service (QoS), or a threshold packet loss, or a threshold latency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for communication at a wireless device, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to; transmit a first Session Initiation Protocol (SIP) message to a third party emergency call server using a communication session, the first SIP message comprising at least a set of session information related to a communication session and a set of telematics data for the wireless device; receive, at a receiver of the wireless device, a second SIP message using the communication session, the second SIP g message comprising metadata based at least in part on a reception status or a content of the set of telematics data transmitted in the first SIP message; and receive a circuit switched (CS) voice call-back from the third party emergency call server or a public safety answering point (PSAP) based at least in part on determining that a media path between the wireless device and the third party emergency call server cannot be established or does not support at least one of;
a threshold bandwidth, or a threshold quality of service (QoS), or a threshold packet loss, or a threshold latency. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for communication at a call service node, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to; receive a first Session Initiation Protocol (SIP) message from a wireless device using a communication session, the first SIP message comprising at least a set of session information related to a communication session and a set of telematics data for the wireless device; relay at least a portion of the first SIP message to a public safety answering point (PSAP); and transmit a second SIP message to the wireless device using the communication session, the second SIP message comprising metadata based at least in part on a reception status or a content of the set of telematics data transmitted in the first SIP message; and transmit a circuit switched (CS) voice call-back to the wireless device or the PSAP based at least in part on determining that a media path between the wireless device and the third party emergency call server cannot be established or does not support at least one of;
a threshold bandwidth, or a threshold quality of service (QoS), or a threshold packet loss, or a threshold latency. - View Dependent Claims (23, 24)
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25. An apparatus for communication at a wireless device, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to; initiate a packet switched (PS) connection, with or without one or more media components, to the third party emergency call server based on the communication session; transmit a first Session Initiation Protocol (SIP) message to a third party emergency call server using a communication session over at least one of an Internet Protocol Multimedia Systems (IMS) service and an internet protocol (IP) connection, the first SIP message comprising at least a set of session information related to a communication session and a set of telematics data for the wireless device; and receive a voice call-back over a circuit switched (CS) connection from the third party emergency call server or a public safety answering point (PSAP) when the PS call fails, the PS call is initiated with no media or the one or more media components lack sufficient quality. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification