Invention Grant
- Patent Title: VoIP emergency call support
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Application No.: US15912710Application Date: 2018-03-06
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Publication No.: US10708748B2Publication Date: 2020-07-07
- Inventor: Stephen William Edge , Kirk Allan Burroughs , John Wallace Nasielski
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Patterson & Sheridan, LLP
- Main IPC: H04W4/90
- IPC: H04W4/90 ; H04L29/06 ; H04M1/725 ; H04M3/51 ; H04M11/04 ; H04W8/20 ; G08B25/10 ; H04M7/00 ; H04M1/253 ; H04M3/436 ; H04W80/06 ; H04W76/50

Abstract:
Techniques to support emergency voice-over-Internet Protocol (VoIP) calls are described. The techniques may be used for various 3GPP and 3GPP2 networks, various location architectures, and various types of User Equipment (UE). A UE communicates with a visited network to send a request to establish an emergency VoIP call. The UE interacts with a location server instructed by the visited network to obtain a first position estimate for the UE. The UE performs call setup via the visited network to establish the emergency VoIP call with a PSAP, which may be selected based on the first position estimate. The UE may thereafter perform positioning with the location server to obtain an updated position estimate for the UE, e.g., if requested by the PSAP.
Public/Granted literature
- US20180199180A1 VOIP EMERGENCY CALL SUPPORT Public/Granted day:2018-07-12
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