Systems and methods to support distress signaling from a wireless device

Patent metadata

Field	Value
Publication number	US-2018124584-A1
Application number	US-201715406526-A
Country	US
Kind code	A1
Filing date	Jan 13, 2017
Priority date	Oct 31, 2016
Publication date	May 3, 2018
Grant date	—

Abstract

Methods of assisting an emergency situation at a first User Equipment (UE) may comprise detecting the emergency situation; and sending an Emergency Services (ES) request comprising discovery information, wherein the ES request is sent by broadcast using a Long Term Evolution (LTE) Direct service, a WiFi Direct service, or a Peer-to-Peer (P2P) service. Disclosed embodiments also pertain to methods of assisting an emergency situation at a first UE, wherein the method is performed on a second UE and comprises receiving from the first UE an ES request comprising the discovery information for the first UE, wherein the ES request is received using an LTE Direct service; a WiFi Direct service or a P2P service. Disclosed embodiments further pertain to methods of communicating by first UE and/or second UE with a Public Safety Answering Point (PSAP) in order to assist discovery of the second UE by the first UE.

First claim

What is claimed is:

1 . A method of assisting an emergency situation at a first User Equipment (UE) comprising:
initiating an emergency call using a network communication protocol; and transmitting an Emergency Services (ES) request comprising first discovery information using a communication service based on a device-to-device protocol, wherein the communication service is selected from a group consisting of a Long Term Evolution (LTE) Direct service, a WiFi Direct service, and a Peer-to-Peer (P2P) service.

2 . The method of claim 1 , further comprising:
receiving a response to the ES request from one or more second UEs, the response comprising second discovery information, wherein the one or more second UEs are distinct from the first UE.

3 . The method of claim 2 , wherein the response to the ES request is received using the communication service, the method further comprising:
establishing, based on at least one of the first discovery information and the second discovery information, a first secure communication session between the first UE and the one or more second UEs using the communication service.

4 . The method of claim 2 , further comprising:
receiving, at the first UE, location information indicative of a location of the first UE from a particular second UE of the one or more second UEs.

5 . The method of claim 4 , wherein the location information indicative of the location of the first UE comprises information indicative of a range between the first UE and the particular second UE, or information indicative of a measurement of an angle of arrival of a signal from the first UE at the particular second UE, or both.

6 . The method of claim 2 , further comprising:
receiving, at the first UE, location information indicative of a location of a particular second UE of the one or more second UEs.

7 . The method of claim 1 , wherein the communication service is the LTE-Direct service and wherein transmitting the ES request using the device-to-device communication service comprises transmitting an LTE Direct private expression or a Proximity-based Services (ProSe) Restricted Code indicative of the ES request.

8 . The method of claim 1 , further comprising:
determining that communication was not successfully established in response to initiating the emergency call, and wherein transmitting the ES request using the device-to-device communication service comprises broadcasting an LTE Direct public expression or a Proximity-based Services (ProSe) Application Code indicative of the ES request.

9 . The method of claim 1 , wherein initiating the emergency call using the network communication protocol comprises sending a first message to a Public Safety Answering Point (PSAP) requesting establishment of a second communication session with the PSAP; and wherein the method further comprises:
receiving from the PSAP, a second message comprising a token, wherein the first discovery information comprises at least part of the token.

10 . The method of claim 9 , further comprising:
establishing the second communication session with the PSAP.

11 . The method of claim 9 , wherein the first message and the second message are messages for a Session Initiation Protocol (SIP), wherein,
the first message is a SIP INVITE message, and the second message is a SIP INFO message, a SIP UPDATE message, or a SIP 200 OK message.

12 . The method of claim 1 , wherein initiating the emergency call comprises initiating the emergency call in response to user input, sensor information, or a combination, and wherein the ES request further comprises an emergency indication.

13 . A first UE comprising:
a memory; a transceiver; and a processor coupled to the memory and the transceiver, wherein the processor is configured to: initiate, using the transceiver, an emergency call using a network communication protocol, and transmit, using the transceiver, an Emergency Services (ES) request comprising first discovery information using a communication service based on a device-to-device protocol, wherein the communication service is selected from a group consisting of a Long Term Evolution (LTE) Direct service, a WiFi Direct service, and a Peer-to-Peer (P2P) service.

14 . The first UE of claim 13 , wherein the processor is further configured to:
receive a response to the ES request from one or more second UEs, the response comprising second discovery information, wherein the one or more second UEs are distinct from the first UE.

15 . The first UE of claim 14 , wherein the response to the ES request is received using the communication service, and the processor is further configured to:
establish, based on at least one of the first discovery information and the second discovery information, a first secure communication session between the first UE and the one or more second UEs using the communication service.

16 . The first UE of claim 14 , wherein the processor is further configured to:
receive, at the first UE, location information indicative of a location of the first UE from a particular second UE of the one or more second UEs.

17 . The first UE of claim 16 , wherein the location information indicative of the location of the first UE comprises information indicative of a range between the first UE and the particular second UE, or information indicative of a measurement of an angle of arrival of a signal from the first UE at the particular second UE, or both.

18 . The first UE of claim 14 , wherein the processor is further configured to:
receive, at the first UE, location information indicative of a location of a particular second UE of the one or more second UEs.

19 . The first UE of claim 13 , wherein the communication service is the LTE-Direct service and wherein to transmit the ES request using the device-to-device communication service, the processor is configured to:
transmit an LTE Direct private expression or a Proximity-based Services (ProSe) Restricted Code indicative of the ES request.

20 . The first UE of claim 13 , wherein the processor is configured to:
determine that communication was not successfully established in response to initiating the emergency call, and wherein transmitting the ES request using the device-to-device communication service comprises broadcasting an LTE Direct public expression or a Proximity-based Services (ProSe) Application Code indicative of the ES request.

21 . The first UE of claim 13 , wherein the processor is configured to initiate the emergency call using the network communication protocol by sending a first message to a Public Safety Answering Point (PSAP) requesting establishment of a second communication session with the PSAP, the processor being further configured to:
receive from the PSAP, a second message comprising a token, wherein the first discovery information comprises at least part of the token.

22 . The first UE of claim 21 , wherein the processor is configured to:
establish the second communication session with the PSAP.

23 . The first UE of claim 21 , wherein the first message and the second message are messages for a Session Initiation Protocol (SIP), wherein,
the first message is a SIP INVITE message, and the second message is a SIP INFO message, a SIP UPDATE message, or a SIP 200 OK message.

24 . The first UE of claim 13 , wherein the processor is configured to initiate the emergency call in response to user input, sensor

Assignees

• Qualcomm Inc

Inventors

• Venkatraman Sai Pradeep
• Edge Stephen William
• Marri Sridhar Subash

Classifications

• H04M3/5116

  for emergency applications · CPC title

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04W4/023

  using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds · CPC title

• H04W92/18

  between terminal devices · CPC title

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title